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Climate and Average Weather Year Round in Hà Đông Vietnam

In Hà Đông, the wet season is hot, oppressive, and overcast and the dry season is comfortable, humid, and mostly clear. Over the course of the year, the temperature typically varies from 57°F to 93°F and is rarely below 49°F or above 99°F.

Based on the tourism score, the best times of year to visit Hà Đông for warm-weather activities are from early February to mid April and from late October to late December.

Climate in Hà Đông

comfortablewarmhotwarmJanFebMarAprMayJunJulAugSepOctNovDecNowNow69%69%7%7%overcastclearprecipitation: 8.9 inprecipitation: 8.9 in0.4 in0.4 inmuggy: 100%muggy: 100%15%15%tourism score: 7.4tourism score: 7.41.91.9
Hà Đông weather by month. Click on each chart for more information.

The hot season lasts for 4.7 months, from May 4 to September 25, with an average daily high temperature above 88°F. The hottest month of the year in Hà Đông is June, with an average high of 92°F and low of 79°F.

The cool season lasts for 2.6 months, from December 10 to February 29, with an average daily high temperature below 72°F. The coldest month of the year in Hà Đông is January, with an average low of 58°F and high of 68°F.

Average High and Low Temperature in Hà Đông

Average High and Low Temperature in Hà ĐônghotcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°F110°F110°FJan 1967°FJan 1967°FJun 2693°FJun 2693°F57°F57°F80°F80°FMay 488°FMay 488°FSep 2588°FSep 2588°FDec 1072°FDec 1072°FFeb 2972°FFeb 2972°F75°F75°F76°F76°F60°F60°F62°F62°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 68°F70°F76°F83°F89°F92°F92°F90°F88°F84°F78°F72°F
Temp. 62°F65°F70°F76°F82°F85°F85°F84°F82°F78°F72°F65°F
Low 58°F60°F65°F72°F76°F79°F80°F79°F77°F72°F66°F59°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 Hà Đông

Average Hourly Temperature in Hà ĐôngJanFebMarAprMayJunJulAugSepOctNovDec12 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 AMNowNowcoolcoolcoolcoolcomfortablecomfortablewarmhot
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.

Laguna Heights, Texas, United States (8,848 miles away) and St. Petersburg, Florida, United States (9,032 miles) are the far-away foreign places with temperatures most similar to Hà Đông (view comparison).

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In Hà Đông, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.

The clearer part of the year in Hà Đông begins around October 3 and lasts for 7.0 months, ending around May 3.

The clearest month of the year in Hà Đông is February, during which on average the sky is clear, mostly clear, or partly cloudy 68% of the time.

The cloudier part of the year begins around May 3 and lasts for 5.0 months, ending around October 3.

The cloudiest month of the year in Hà Đông is June, during which on average the sky is overcast or mostly cloudy 92% of the time.

Cloud Cover Categories in Hà Đông

Cloud Cover Categories in Hà ĐôngclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Feb 2269%Feb 2269%Jun 157%Jun 157%Oct 338%Oct 338%May 339%May 339%NowNowclearmostly clearpartly cloudyovercastmostly cloudy
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 34%32%35%49%76%92%90%88%73%53%38%33%
Clearer 66%68%65%51%24%8%10%12%27%47%62%67%

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

The wetter season lasts 5.1 months, from May 2 to October 5, with a greater than 31% chance of a given day being a wet day. The month with the most wet days in Hà Đông is August, with an average of 17.0 days with at least 0.04 inches of precipitation.

The drier season lasts 6.9 months, from October 5 to May 2. The month with the fewest wet days in Hà Đông is January, with an average of 1.9 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 Hà Đông is August, with an average of 17.0 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 56% on August 24.

Daily Chance of Precipitation in Hà Đông

Daily Chance of Precipitation in Hà ĐôngwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Aug 2456%Aug 2456%Jan 305%Jan 305%May 231%May 231%Oct 531%Oct 531%NowNowrain
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 1.9d2.2d4.6d6.7d12.0d14.1d16.1d17.0d12.5d8.1d4.2d2.0d

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. Hà Đông experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Hà Đông. The month with the most rain in Hà Đông is August, with an average rainfall of 8.9 inches.

The month with the least rain in Hà Đông is February, with an average rainfall of 0.5 inches.

Average Monthly Rainfall in Hà Đông

Average Monthly Rainfall in Hà ĐôngJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in5 in5 in10 in10 in15 in15 inAug 158.9 inAug 158.9 inFeb 40.4 inFeb 40.4 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 0.5″0.5″1.2″2.1″5.0″6.3″8.0″8.9″6.8″3.4″1.7″0.5″

The length of the day in Hà Đông varies over the course of the year. In 2024, the shortest day is December 21, with 10 hours, 52 minutes of daylight; the longest day is June 21, with 13 hours, 25 minutes of daylight.

Hours of Daylight and Twilight in Hà Đông

Hours of Daylight and Twilight in Hà ĐôngJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minMar 2012 hr, 6 minMar 2013 hr, 25 minJun 2113 hr, 25 minJun 2112 hr, 7 minSep 2212 hr, 7 minSep 2210 hr, 52 minDec 2110 hr, 52 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 11.0h11.5h12.0h12.6h13.1h13.4h13.3h12.8h12.3h11.7h11.1h10.9h

The earliest sunrise is at 5:14 AM on June 6, and the latest sunrise is 1 hour, 22 minutes later at 6:36 AM on January 17. The earliest sunset is at 5:14 PM on November 26, and the latest sunset is 1 hour, 28 minutes later at 6:42 PM on July 3.

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

Sunrise & Sunset with Twilight in Hà Đông

Sunrise & Sunset with Twilight in Hà ĐôngJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 65:14 AMJun 65:14 AM6:42 PMJul 36:42 PMJul 3Nov 265:14 PMNov 265:14 PM6:36 AMJan 176:36 AMJan 17daynightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
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 Hà Đông

Solar Elevation and Azimuth in Hà ĐôngJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM000010101010202020203030303040404040505050606070708000001010101020202020303030304040404050505060606070708046NowNow
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 Hà Đông

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.

Hà Đông experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 9.0 months, from February 27 to November 25, during which time the comfort level is muggy, oppressive, or miserable at least 36% of the time. The month with the most muggy days in Hà Đông is July, with 31.0 days that are muggy or worse.

The month with the fewest muggy days in Hà Đông is January, with 5.0 days that are muggy or worse.

Humidity Comfort Levels in Hà Đông

Humidity Comfort Levels in Hà ĐôngmuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jan 2115%Jan 2115%100%Aug 11100%Aug 11Feb 2736%Feb 2736%Nov 2536%Nov 2536%NowNowmiserablemiserablemuggymuggydrydryoppressiveoppressivehumidhumid
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 5.0d8.1d16.5d24.5d29.7d29.8d31.0d31.0d28.8d24.5d14.1d6.4d

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 Hà Đông experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 4.7 months, from January 5 to May 27, with average wind speeds of more than 6.5 miles per hour. The windiest month of the year in Hà Đông is March, with an average hourly wind speed of 7.8 miles per hour.

The calmer time of year lasts for 7.3 months, from May 27 to January 5. The calmest month of the year in Hà Đông is August, with an average hourly wind speed of 5.2 miles per hour.

Average Wind Speed in Hà Đông

Average Wind Speed in Hà ĐôngwindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mphMar 267.8 mphMar 267.8 mphAug 185.1 mphAug 185.1 mphJan 56.5 mphJan 56.5 mphMay 276.5 mphMay 276.5 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) 6.87.47.87.66.96.05.85.25.86.46.26.3

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

The wind is most often from the south for 5.6 months, from March 15 to September 3, with a peak percentage of 63% on July 2. The wind is most often from the east for 2.1 weeks, from September 3 to September 18 and for 2.8 months, from December 20 to March 15, with a peak percentage of 36% on September 17. The wind is most often from the north for 3.1 months, from September 18 to December 20, with a peak percentage of 44% on November 1.

Wind Direction in Hà Đông

Wind Direction in Hà ĐôngESENEJanFebMarAprMayJunJulAugSepOctNovDec0%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).

Hà Đông 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 some seasonal variation over the course of the year.

The time of year with warmer water lasts for 4.8 months, from May 22 to October 17, with an average temperature above 82°F. The month of the year in Hà Đông with the warmest water is August, with an average temperature of 85°F.

The time of year with cooler water lasts for 3.3 months, from December 22 to March 31, with an average temperature below 71°F. The month of the year in Hà Đông with the coolest water is February, with an average temperature of 68°F.

Average Water Temperature in Hà Đông

Average Water Temperature in Hà ĐôngwarmcoolJanFebMarAprMayJunJulAugSepOctNovDec65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°FAug 1585°FAug 1585°F68°FFeb 1068°FFeb 10May 2282°FMay 2282°FOct 1782°FOct 1782°FDec 2271°FDec 2271°FMar 3171°FMar 3171°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 69°F68°F69°F74°F81°F84°F85°F85°F84°F82°F77°F72°F

To characterize how pleasant the weather is in Hà Đông 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 times of year to visit Hà Đông for general outdoor tourist activities are from early February to mid April and from late October to late December, with a peak score in the last week of November.

Tourism Score in Hà Đông

Tourism Score in Hà Đôngbest timebest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.47.41.91.97.47.46.36.3NowNowtemperaturetemperature 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 times of year to visit Hà Đông for hot-weather activities are from late March to early May and from late September to mid November, with a peak score in the second week of October.

Beach/Pool Score in Hà Đông

Beach/Pool Score in Hà Đôngbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.26.21.81.86.26.22.92.9NowNow 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).

Temperatures in Hà Đông are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

Time Spent in Various Temperature Bands and the Growing Season in Hà Đông

Time Spent in Various Temperature Bands and the Growing Season in Hà ĐôngJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%100%Jan 1100%Jan 1100%Jul 2100%Jul 2NowNowcoldcoolcomfortablewarmhotsweltering
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.

Growing Degree Days in Hà Đông

Growing Degree Days in Hà ĐôngJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°F6,000°F6,000°F7,000°F7,000°F8,000°F8,000°F9,000°F9,000°FJan 890°FJan 890°FMar 6900°FMar 6900°FApr 161,800°FApr 161,800°FDec 319,108°FDec 319,108°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 1.6 months, from March 23 to May 11, with an average daily incident shortwave energy per square meter above 5.3 kWh. The brightest month of the year in Hà Đông is April, with an average of 5.6 kWh.

The darker period of the year lasts for 2.2 months, from November 22 to February 1, with an average daily incident shortwave energy per square meter below 4.2 kWh. The darkest month of the year in Hà Đông is December, with an average of 4.0 kWh.

Average Daily Incident Shortwave Solar Energy in Hà Đông

Average Daily Incident Shortwave Solar Energy in Hà ĐôngbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhApr 235.6 kWhApr 235.6 kWhJan 83.9 kWhJan 83.9 kWhNov 224.2 kWhNov 224.2 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) 4.04.65.25.65.14.44.34.45.04.94.44.0

For the purposes of this report, the geographical coordinates of Hà Đông are 20.971 deg latitude, 105.779 deg longitude, and 43 ft elevation.

The topography within 2 miles of Hà Đông is essentially flat, with a maximum elevation change of 69 feet and an average elevation above sea level of 30 feet. Within 10 miles is essentially flat (322 feet). Within 50 miles contains only modest variations in elevation (5,387 feet).

The area within 2 miles of Hà Đông is covered by cropland (62%), grassland (15%), trees (12%), and shrubs (11%), within 10 miles by cropland (57%) and grassland (14%), and within 50 miles by cropland (48%) and trees (23%).

This report illustrates the typical weather in Hà Đông, 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, Noi Bai International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Hà Đông.

At a distance of 28 kilometers from Hà Đông, 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 Hà Đông 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.