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Average Weather in Sixi China

In Sixi, the summers are warm, oppressive, wet, and mostly cloudy and the winters are short, very cold, and partly cloudy. Over the course of the year, the temperature typically varies from 26°F to 84°F and is rarely below 18°F or above 88°F.

Climate Summary

coldcoolwarmcoolcoldJanFebMarAprMayJunJulAugSepOctNovDec71%71%23%23%clearovercastprecipitation: 12.8 inprecipitation: 12.8 in1.5 in1.5 inmuggy: 99%muggy: 99%0%0%drydrytourism score: 6.4tourism score: 6.40.00.0
Click on each chart for more information.

Based on the tourism score, the best time of year to visit Sixi for warm-weather activities is from early August to late September.

Temperature

The warm season lasts for 3.8 months, from May 27 to September 21, with an average daily high temperature above 76°F. The hottest day of the year is July 31, with an average high of 84°F and low of 71°F.

The cold season lasts for 2.9 months, from December 3 to March 1, with an average daily high temperature below 52°F. The coldest day of the year is January 19, with an average low of 26°F and high of 44°F.

Average High and Low Temperature

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.

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

Average Hourly Temperature in SixiJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMfreezingvery coldvery coldcoldcoldcoolcoolcomfortablewarmvery coldfreezingfreezing
The average hourly temperature, color coded into bands: 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 shaded overlays indicate night and civil twilight.

Elkfork, Kentucky, United States (7,553 miles away) and Dumfries, Virginia, United States (7,604 miles) are the far-away foreign places with temperatures most similar to Sixi (view comparison).

Clouds

In Sixi, 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 Sixi begins around September 1 and lasts for 6.2 months, ending around March 8. On October 23, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 71% of the time, and overcast or mostly cloudy 29% of the time.

The cloudier part of the year begins around March 8 and lasts for 5.8 months, ending around September 1. On July 4, the cloudiest day of the year, the sky is overcast or mostly cloudy 77% of the time, and clear, mostly clear, or partly cloudy 23% of the time.

Cloud Cover Categories

Cloud Cover Categories in SixiclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Oct 2371%Oct 2371%Jul 423%Jul 423%Sep 146%Sep 146%Mar 847%Mar 847%clearpartly cloudymostly cloudyovercastmostly clear
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

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

The wetter season lasts 6.7 months, from February 17 to September 6, with a greater than 35% chance of a given day being a wet day. The chance of a wet day peaks at 54% on June 22.

The drier season lasts 5.4 months, from September 6 to February 17. The smallest chance of a wet day is 15% on December 18.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 54% on June 22.

Daily Chance of Precipitation

Daily Chance of Precipitation in SixiwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jun 2254%Jun 2254%Dec 1815%Dec 1815%Feb 1735%Feb 1735%Sep 635%Sep 635%rainmixedsnow
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).

Rainfall

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. Sixi experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Sixi. The most rain falls during the 31 days centered around June 25, with an average total accumulation of 12.8 inches.

The least rain falls around December 26, with an average total accumulation of 1.2 inches.

Average Monthly Rainfall

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 liquid-equivalent snowfall.

Snowfall

We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.

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

The snowy period of the year lasts for 4.1 months, from November 24 to March 28, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around January 22, with an average total liquid-equivalent accumulation of 0.7 inches.

The snowless period of the year lasts for 7.9 months, from March 28 to November 24. The least snow falls around July 29, with an average total liquid-equivalent accumulation of 0.0 inches.

Average Liquid-Equivalent Monthly Snowfall

Average Liquid-Equivalent Monthly Snowfall in SixisnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0 in2 in4 in6 in8 in10 in12 in14 inJan 220.7 inJan 220.7 inJul 290.0 inJul 290.0 inNov 240.1 inNov 240.1 inMar 280.1 inMar 280.1 in
The average liquid-equivalent 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.

Sun

The length of the day in Sixi varies significantly over the course of the year. In 2018, the shortest day is December 22, with 10 hours, 13 minutes of daylight; the longest day is June 21, with 14 hours, 5 minutes of daylight.

Hours of Daylight and Twilight

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.

The earliest sunrise is at 5:06 AM on June 12, and the latest sunrise is 1 hour, 59 minutes later at 7:04 AM on January 11. The earliest sunset is at 5:07 PM on December 2, and the latest sunset is 2 hours, 6 minutes later at 7:13 PM on June 30.

Daylight saving time (DST) is not observed in Sixi during 2018.

Sunrise & Sunset with Twilight

Sunrise & Sunset with Twilight in SixiJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 125:06 AMJun 125:06 AM7:13 PMJun 307:13 PMJun 30Dec 25:07 PMDec 25:07 PM7:04 AMJan 117:04 AMJan 11daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2018. 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.

Humidity

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.

Sixi experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 4.5 months, from May 14 to September 29, during which time the comfort level is muggy, oppressive, or miserable at least 25% of the time. The muggiest day of the year is July 24, with muggy conditions 99% of the time.

The least muggy day of the year is December 22, when muggy conditions are essentially unheard of.

Humidity Comfort Levels

Humidity Comfort Levels in SiximuggyJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Dec 220%Dec 220%99%Jul 2499%Jul 24May 1425%May 1425%Sep 2925%Sep 2925%miserablemiserableoppressiveoppressivedrydryhumidhumidmuggymuggycomfortablecomfortable
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

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 Sixi experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 3.5 months, from January 28 to May 13, with average wind speeds of more than 6.6 miles per hour. The windiest day of the year is March 9, with an average hourly wind speed of 7.4 miles per hour.

The calmer time of year lasts for 8.5 months, from May 13 to January 28. The calmest day of the year is August 25, with an average hourly wind speed of 5.9 miles per hour.

Average Wind Speed

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

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

The wind is most often from the east for 3.2 months, from January 16 to April 22; for 4.3 weeks, from May 15 to June 14; and for 3.9 months, from August 8 to December 6, with a peak percentage of 55% on October 7. The wind is most often from the south for 3.3 weeks, from April 22 to May 15 and for 1.8 months, from June 14 to August 8, with a peak percentage of 53% on July 12. The wind is most often from the north for 1.3 months, from December 6 to January 16, with a peak percentage of 38% on January 1.

Wind Direction

Wind Direction in SixiNESESENJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%southeastnorthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Best Time of Year to Visit

To characterize how pleasant the weather is in Sixi 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 Sixi for general outdoor tourist activities is from early August to late September, with a peak score in the second week of September.

Tourism Score

Tourism Score in Sixibest timeJanFebMarAprMayJunJulAugSepOctNovDec02468106.46.40.00.05.55.54.74.7 precipitationprecipitationcloudscloudstemperaturetemperaturetourism 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 Sixi for hot-weather activities is from mid July to mid August, with a peak score in the first week of August.

Beach/Pool Score

Beach/Pool Score in SixiJanFebMarAprMayJunJulAugSepOctNovDec02468105.55.50.00.0 precipitationprecipitationcloudscloudstemperaturetemperaturebeach/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.

Growing Season

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 Sixi typically lasts for 7.5 months (231 days), from around March 27 to around November 13, rarely starting before March 9 or after April 14, and rarely ending before October 26 or after November 30.

Time Spent in Various Temperature Bands and the Growing Season

Time Spent in Various Temperature Bands and the Growing Season in Sixigrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Mar 2750%Mar 2750%Nov 1350%Nov 1390%Apr 1490%Apr 1490%Oct 2690%Oct 2610%Mar 910%Mar 910%Nov 3010%Nov 300%Dec 250%Dec 25Jul 19100%Jul 19100%freezingvery coldcoldcoolcomfortablewarmhot
The percentage of time spent in various temperature bands: 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 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 Sixi should appear around March 25, only rarely appearing before March 12 or after April 7.

Growing Degree Days

Growing Degree Days in SixiJanFebMarAprMayJunJulAugSepOctNovDec0°F500°F1,000°F1,500°F2,000°F2,500°F3,000°F3,500°F4,000°FMar 2586°FMar 2586°FJun 5900°FJun 5900°FJul 141,800°FJul 141,800°FDec 314,003°FDec 314,003°F
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

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 1.9 months, from April 27 to June 22, with an average daily incident shortwave energy per square meter above 5.3 kWh. The brightest day of the year is June 1, with an average of 5.8 kWh.

The darker period of the year lasts for 3.1 months, from November 9 to February 12, with an average daily incident shortwave energy per square meter below 3.6 kWh. The darkest day of the year is December 29, with an average of 3.0 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in SixibrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWhJun 15.8 kWhJun 15.8 kWhDec 293.0 kWhDec 293.0 kWhApr 275.3 kWhApr 275.3 kWhNov 93.6 kWhNov 93.6 kWhFeb 123.6 kWhFeb 123.6 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Sixi are 30.019 deg latitude, 118.056 deg longitude, and 1,900 ft elevation.

The topography within 2 miles of Sixi contains large variations in elevation, with a maximum elevation change of 2,031 feet and an average elevation above sea level of 1,912 feet. Within 10 miles contains large variations in elevation (5,177 feet). Within 50 miles also contains extreme variations in elevation (5,948 feet).

The area within 2 miles of Sixi is covered by trees (95%), within 10 miles by trees (83%), and within 50 miles by trees (76%).

Data Sources

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

Sixi is further than 200 kilometers from the nearest reliable weather station, so the weather-related data on this page were taken entirely from NASA's MERRA-2 satellite-era reanalysis . 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.

The temperature and dew point estimates are corrected for the difference between the reference elevation of the MERRA-2 grid cell and the elevation of Sixi, according to the International Standard Atmosphere .

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

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 aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

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.