Average Weather at Beijing Capital International Airport China
At Beijing Capital International Airport, the summers are long, warm, humid, and partly cloudy and the winters are freezing, dry, and mostly clear. Over the course of the year, the temperature typically varies from 17°F to 88°F and is rarely below 9°F or above 96°F.
The hot season lasts for 4.4 months, from May 8 to September 21, with an average daily high temperature above 77°F. The hottest day of the year is July 16, with an average high of 88°F and low of 73°F.
The cold season lasts for 3.0 months, from November 24 to February 25, with an average daily high temperature below 45°F. The coldest day of the year is January 15, with an average low of 17°F and high of 34°F.
Average High and Low Temperature
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
At Beijing Capital International Airport, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year.
The clearer part of the year at Beijing Capital International Airport begins around September 7 and lasts for 5.7 months, ending around February 26. On December 12, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 78% of the time, and overcast or mostly cloudy 22% of the time.
The cloudier part of the year begins around February 26 and lasts for 6.4 months, ending around September 7. On June 18, the cloudiest day of the year, the sky is overcast or mostly cloudy 42% of the time, and clear, mostly clear, or partly cloudy 58% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Beijing Capital International Airport varies significantly throughout the year.
The wetter season lasts 3.5 months, from June 3 to September 18, with a greater than 20% chance of a given day being a wet day. The chance of a wet day peaks at 40% on July 20.
The drier season lasts 8.5 months, from September 18 to June 3. The smallest chance of a wet day is 0% on January 27.
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 at Beijing Capital International Airport changes throughout the year.
Rain alone is the most common for 10 months, from January 28 to December 10. The highest chance of a day with rain alone is 40% on July 20.
Snow alone is the most common for 1.6 months, from December 10 to January 28. The highest chance of a day with snow alone is 1% on January 4.
Daily Chance of Precipitation
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. Beijing Capital International Airport experiences extreme seasonal variation in monthly rainfall.
The rainy period of the year lasts for 6.6 months, from April 8 to October 28, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around July 24, with an average total accumulation of 5.4 inches.
The rainless period of the year lasts for 5.3 months, from October 28 to April 8. The least rain falls around January 12, with an average total accumulation of 0.0 inches.
Average Monthly Rainfall
The length of the day at Beijing Capital International Airport varies significantly over the course of the year. In 2017, the shortest day is December 22, with 9 hours, 19 minutes of daylight; the longest day is June 21, with 15 hours, 2 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 4:43 AM on June 14, and the latest sunrise is 2 hours, 52 minutes later at 7:35 AM on January 5. The earliest sunset is at 4:47 PM on December 7, and the latest sunset is 2 hours, 59 minutes later at 7:46 PM on June 27.
Daylight saving time (DST) is not observed at Beijing Capital International Airport during 2017.
Sunrise & Sunset with 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.
Beijing Capital International Airport experiences extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 2.9 months, from June 13 to September 11, during which time the comfort level is muggy, oppressive, or miserable at least 23% of the time. The muggiest day of the year is July 29, with muggy conditions 88% of the time.
The least muggy day of the year is February 17, when muggy conditions are essentially unheard of.
Humidity Comfort Levels
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 at Beijing Capital International Airport experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 4.6 months, from January 22 to June 10, with average wind speeds of more than 3.7 miles per hour. The windiest day of the year is April 20, with an average hourly wind speed of 4.7 miles per hour.
The calmer time of year lasts for 7.4 months, from June 10 to January 22. The calmest day of the year is August 16, with an average hourly wind speed of 2.8 miles per hour.
Average Wind Speed
The predominant average hourly wind direction at Beijing Capital International Airport varies throughout the year.
The wind is most often from the south for 6.5 months, from March 23 to October 9, with a peak percentage of 56% on July 27. The wind is most often from the north for 5.5 months, from October 9 to March 23, with a peak percentage of 52% on January 1.
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 significant seasonal variation over the course of the year.
The brighter period of the year lasts for 3.5 months, from April 13 to July 28, with an average daily incident shortwave energy per square meter above 5.8 kWh. The brightest day of the year is May 30, with an average of 6.7 kWh.
The darker period of the year lasts for 3.1 months, from November 1 to February 5, with an average daily incident shortwave energy per square meter below 3.2 kWh. The darkest day of the year is December 19, with an average of 2.3 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Beijing Capital International Airport are 40.080 deg latitude, 116.585 deg longitude, and 112 ft elevation.
The topography within 2 miles of Beijing Capital International Airport contains only modest variations in elevation, with a maximum elevation change of 341 feet and an average elevation above sea level of 114 feet. Within 10 miles also contains only modest variations in elevation (377 feet). Within 50 miles contains only modest variations in elevation (5,377 feet).
The area within 2 miles of Beijing Capital International Airport is covered by artificial surfaces (52%) and cropland (40%), within 10 miles by cropland (54%) and artificial surfaces (33%), and within 50 miles by cropland (38%) and trees (34%).
This report illustrates the typical weather at Beijing Capital International Airport, 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
Beijing Capital International Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.
In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.
In this case, the only station close and reliable enough to use as a fallback is Tianjin Binhai International Airport.
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.
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 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.