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Climate and Average Weather Year Round in Hangzhou China

In Hangzhou, the summers are short, hot, oppressive, wet, and mostly cloudy and the winters are very cold and partly cloudy. Over the course of the year, the temperature typically varies from 34°F to 93°F and is rarely below 26°F or above 100°F.

Based on the tourism score, the best time of year to visit Hangzhou for warm-weather activities is from mid September to mid October.

Climate in Hangzhou

coldcoolwarmhotwarmcoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow72%72%23%23%clearovercastprecipitation: 7.9 inprecipitation: 7.9 in1.5 in1.5 inmuggy: 99%muggy: 99%0%0%drydrytourism score: 7.3tourism score: 7.30.20.2
Hangzhou weather by month. Click on each chart for more information.

The hot season lasts for 2.9 months, from June 13 to September 9, with an average daily high temperature above 83°F. The hottest month of the year in Hangzhou is July, with an average high of 91°F and low of 78°F.

The cool season lasts for 3.1 months, from December 2 to March 6, with an average daily high temperature below 55°F. The coldest month of the year in Hangzhou is January, with an average low of 34°F and high of 46°F.

Average High and Low Temperature in Hangzhou

Average High and Low Temperature in HangzhouhotcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°F110°F110°FJan 2046°FJan 2046°FJul 2493°FJul 2493°F34°F34°F79°F79°FJun 1383°FJun 1383°FSep 983°FSep 983°FDec 255°FDec 255°FMar 655°FMar 655°F71°F71°F71°F71°F41°F41°F42°F42°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.
AverageJanFebMarAprMayJunJulAugSepOctNovDec
High 46°F50°F58°F70°F79°F84°F91°F90°F82°F73°F62°F51°F
Temp. 40°F43°F51°F62°F71°F77°F84°F83°F75°F65°F55°F44°F
Low 34°F37°F45°F55°F64°F72°F78°F77°F69°F59°F47°F37°F

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in Hangzhou

Average Hourly Temperature in HangzhouJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNowNowvery coldcoldcoldcoolcoolwarmhotvery coldcomfortablecoldvery coldcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Memphis, Tennessee, United States (7,515 miles away) and Tehran, Iran (3,924 miles) are the far-away foreign places with temperatures most similar to Hangzhou (view comparison).

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In Hangzhou, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Hangzhou begins around September 1 and lasts for 6.3 months, ending around March 11.

The clearest month of the year in Hangzhou is October, during which on average the sky is clear, mostly clear, or partly cloudy 70% of the time.

The cloudier part of the year begins around March 11 and lasts for 5.7 months, ending around September 1.

The cloudiest month of the year in Hangzhou is July, during which on average the sky is overcast or mostly cloudy 70% of the time.

Cloud Cover Categories in Hangzhou

Cloud Cover Categories in HangzhouclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Oct 2272%Oct 2272%Jul 323%Jul 323%Sep 147%Sep 147%Mar 1147%Mar 1147%NowNowclearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.
FractionJanFebMarAprMayJunJulAugSepOctNovDec
Cloudier 37%44%54%58%57%68%70%58%42%30%32%31%
Clearer 63%56%46%42%43%32%30%42%58%70%68%69%

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Hangzhou varies significantly throughout the year.

The wetter season lasts 6.7 months, from February 19 to September 10, with a greater than 32% chance of a given day being a wet day. The month with the most wet days in Hangzhou is June, with an average of 13.3 days with at least 0.04 inches of precipitation.

The drier season lasts 5.3 months, from September 10 to February 19. The month with the fewest wet days in Hangzhou is December, with an average of 5.2 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Hangzhou is June, with an average of 13.3 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 50% on June 21.

Daily Chance of Precipitation in Hangzhou

Daily Chance of Precipitation in HangzhouwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jun 2150%Jun 2150%Dec 1715%Dec 1715%Feb 1932%Feb 1932%Sep 1032%Sep 1032%NowNowrainmixed
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 5.7d7.9d11.7d10.7d10.4d13.3d11.6d11.9d8.8d6.0d6.0d4.9d
Mixed 0.8d0.7d0.2d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.2d
Snow 0.2d0.2d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.1d
Any 6.7d8.7d11.9d10.7d10.4d13.3d11.6d11.9d8.8d6.0d6.1d5.2d

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Hangzhou experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Hangzhou. The month with the most rain in Hangzhou is June, with an average rainfall of 7.6 inches.

The month with the least rain in Hangzhou is December, with an average rainfall of 1.4 inches.

Average Monthly Rainfall in Hangzhou

Average Monthly Rainfall in HangzhouJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 in14 in14 inJun 237.9 inJun 237.9 inDec 211.4 inDec 211.4 inAug 205.3 inAug 205.3 inMar 234.2 inMar 234.2 inNowNow
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Rainfall 1.8″2.7″4.1″4.1″4.6″7.6″5.6″5.3″4.2″2.5″2.1″1.4″

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Hangzhou experiences some seasonal variation in monthly snowfall.

The snowy period of the year lasts for 1.4 months, from January 2 to February 15, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Hangzhou is January, with an average snowfall of 1.5 inches.

The snowless period of the year lasts for 11 months, from February 15 to January 2. The least snow falls around July 19, with an average total accumulation of 0.0 inches.

Average Monthly Snowfall in Hangzhou

Average Monthly Snowfall in HangzhousnowJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 inJan 221.6 inJan 221.6 inJul 190.0 inJul 190.0 inNowNow
The average snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Snowfall 1.5″1.0″0.2″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.1″0.5″

The length of the day in Hangzhou varies significantly over the course of the year. In 2024, the shortest day is December 21, with 10 hours, 12 minutes of daylight; the longest day is June 21, with 14 hours, 6 minutes of daylight.

Hours of Daylight and Twilight in Hangzhou

Hours of Daylight and Twilight in HangzhouJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minMar 2012 hr, 6 minMar 2014 hr, 6 minJun 2114 hr, 6 minJun 2112 hr, 8 minSep 2212 hr, 8 minSep 2210 hr, 12 minDec 2110 hr, 12 minDec 21nightnightdayNowNow
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.
Hours ofJanFebMarAprMayJunJulAugSepOctNovDec
Daylight 10.4h11.1h12.0h12.9h13.7h14.1h13.9h13.2h12.3h11.4h10.6h10.2h

The earliest sunrise is at 4:56 AM on June 11, and the latest sunrise is 2 hours, 0 minutes later at 6:56 AM on January 11. The earliest sunset is at 4:58 PM on December 2, and the latest sunset is 2 hours, 7 minutes later at 7:05 PM on June 30.

Daylight saving time (DST) is not observed in Hangzhou during 2024.

Sunrise & Sunset with Twilight in Hangzhou

Sunrise & Sunset with Twilight in HangzhouJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 114:56 AMJun 114:56 AM7:05 PMJun 307:05 PMJun 30Dec 24:58 PMDec 24:58 PM6:56 AMJan 116:56 AMJan 11daynightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2024. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in Hangzhou

Solar Elevation and Azimuth in HangzhouJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AM000010101010202020203030303040404050505060607080000010101010202020203030303040404040505050606070708036NowNow
northeastsouthwest
Solar elevation and azimuth over the course of the year 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

Moon Rise, Set & Phases in Hangzhou

The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Hangzhou experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 4.8 months, from May 11 to October 5, during which time the comfort level is muggy, oppressive, or miserable at least 25% of the time. The month with the most muggy days in Hangzhou is July, with 30.6 days that are muggy or worse.

The month with the fewest muggy days in Hangzhou is January, with 0.0 days that are muggy or worse.

Humidity Comfort Levels in Hangzhou

Humidity Comfort Levels in HangzhoumuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jan 260%Jan 260%99%Jul 2499%Jul 24May 1125%May 1125%Oct 525%Oct 525%NowNowmiserablemiserableoppressiveoppressivedrydrymuggymuggyhumidhumidcomfortablecomfortable
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.
JanFebMarAprMayJunJulAugSepOctNovDec
Muggy days 0.0d0.0d0.1d1.8d9.5d23.3d30.6d29.8d18.1d4.4d0.5d0.0d

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Hangzhou experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 3.7 months, from January 28 to May 18, with average wind speeds of more than 7.5 miles per hour. The windiest month of the year in Hangzhou is March, with an average hourly wind speed of 8.0 miles per hour.

The calmer time of year lasts for 8.3 months, from May 18 to January 28. The calmest month of the year in Hangzhou is June, with an average hourly wind speed of 6.9 miles per hour.

Average Wind Speed in Hangzhou

Average Wind Speed in HangzhouwindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mphMar 98.1 mphMar 98.1 mphJun 236.8 mphJun 236.8 mphJan 287.5 mphJan 287.5 mphMay 187.5 mphMay 187.5 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Wind Speed (mph) 7.47.88.07.87.56.96.97.07.47.17.27.3

The predominant average hourly wind direction in Hangzhou varies throughout the year.

The wind is most often from the east for 1.1 months, from March 11 to April 13; for 4.1 weeks, from May 18 to June 16; and for 2.1 months, from August 9 to October 12, with a peak percentage of 42% on September 10. The wind is most often from the south for 1.2 months, from April 13 to May 18 and for 1.8 months, from June 16 to August 9, with a peak percentage of 48% on July 13. The wind is most often from the north for 5.0 months, from October 12 to March 11, with a peak percentage of 47% on January 1.

Wind Direction in Hangzhou

Wind Direction in HangzhouNESESENJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowsoutheastnorthwest
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Hangzhou is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences significant seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.3 months, from June 22 to September 30, with an average temperature above 75°F. The month of the year in Hangzhou with the warmest water is August, with an average temperature of 82°F.

The time of year with cooler water lasts for 3.4 months, from December 23 to April 4, with an average temperature below 52°F. The month of the year in Hangzhou with the coolest water is February, with an average temperature of 45°F.

Average Water Temperature in Hangzhou

Average Water Temperature in HangzhouwarmcoolJanFebMarAprMayJunJulAugSepOctNovDec40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°FAug 582°FAug 582°F45°FFeb 945°FFeb 9Jun 2275°FJun 2275°FSep 3075°FSep 3075°FDec 2352°FDec 2352°FApr 452°FApr 452°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 47°F45°F49°F56°F65°F74°F80°F82°F78°F71°F63°F54°F

To characterize how pleasant the weather is in Hangzhou throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Hangzhou for general outdoor tourist activities is from mid September to mid October, with a peak score in the last week of September.

Tourism Score in Hangzhou

Tourism Score in HangzhouJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.37.30.20.26.26.23.33.3NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationtourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Hangzhou for hot-weather activities is from early August to mid September, with a peak score in the first week of September.

Beach/Pool Score in Hangzhou

Beach/Pool Score in Hangzhoubest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.75.70.00.04.74.7NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationbeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Hangzhou typically lasts for 9.3 months (281 days), from around February 25 to around December 2, rarely starting before February 1 or after March 15, and rarely ending before November 13 or after December 21.

Time Spent in Various Temperature Bands and the Growing Season in Hangzhou

Time Spent in Various Temperature Bands and the Growing Season in Hangzhougrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Feb 2550%Feb 2550%Dec 250%Dec 290%Mar 1590%Mar 1590%Nov 1390%Nov 1310%Feb 110%Feb 110%Dec 2110%Dec 211%Jan 111%Jan 11Jul 16100%Jul 16100%NowNowvery coldcoldcoolwarmhotcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms in Hangzhou should appear around March 10, only rarely appearing before February 23 or after March 29.

Growing Degree Days in Hangzhou

Growing Degree Days in HangzhouJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°FMar 1080°FMar 1080°FMay 18900°FMay 18900°FDec 315,389°FDec 315,389°FNowNow
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences some seasonal variation over the course of the year.

The brighter period of the year lasts for 1.8 months, from April 24 to June 18, with an average daily incident shortwave energy per square meter above 5.2 kWh. The brightest month of the year in Hangzhou is May, with an average of 5.6 kWh.

The darker period of the year lasts for 3.0 months, from November 8 to February 9, with an average daily incident shortwave energy per square meter below 3.5 kWh. The darkest month of the year in Hangzhou is December, with an average of 3.0 kWh.

Average Daily Incident Shortwave Solar Energy in Hangzhou

Average Daily Incident Shortwave Solar Energy in HangzhoubrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhMay 215.8 kWhMay 215.8 kWhJan 32.9 kWhJan 32.9 kWhNov 83.5 kWhNov 83.5 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 3.13.64.15.05.65.35.35.45.04.33.33.0

For the purposes of this report, the geographical coordinates of Hangzhou are 30.294 deg latitude, 120.161 deg longitude, and 39 ft elevation.

The topography within 2 miles of Hangzhou contains only modest variations in elevation, with a maximum elevation change of 164 feet and an average elevation above sea level of 46 feet. Within 10 miles contains only modest variations in elevation (1,375 feet). Within 50 miles contains very significant variations in elevation (5,407 feet).

The area within 2 miles of Hangzhou is covered by artificial surfaces (96%), within 10 miles by cropland (43%) and artificial surfaces (29%), and within 50 miles by trees (42%) and cropland (35%).

This report illustrates the typical weather in Hangzhou, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There is only a single weather station, Hangzhou Xiaoshan International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Hangzhou.

At a distance of 27 kilometers from Hangzhou, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

The station records are corrected for the elevation difference between the station and Hangzhou according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

Please review our full terms contained on our Terms of Service page.