1. WeatherSpark.com
  2. Brazil
  3. Federal District
  4. Brasilia International Airport

Average Weather at Brasilia International Airport Brazil

At Brasilia International Airport, the wet season is overcast, the dry season is mostly clear, and it is warm year round. Over the course of the year, the temperature typically varies from 54°F to 85°F and is rarely below 49°F or above 91°F.

Average High and Low Temperature

Average High and Low Temperature at Brasilia International AirportJanFebMarAprMayJunJulAugSepOctNovDec0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F100°FJul 1279°FJul 1279°FSep 2785°FSep 2785°F54°F54°F63°F63°FMay 1980°FMay 1980°F59°F59°F65°F65°F59°F59°F
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 at Brasilia International AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMwarmcoolcomfortablecold
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < chilly < 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.

Clouds

At Brasilia International Airport, 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 at Brasilia International Airport begins around April 18 and lasts for 5.7 months, ending around October 9. On July 30, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 76% of the time, and overcast or mostly cloudy 24% of the time.

The cloudier part of the year begins around October 9 and lasts for 6.3 months, ending around April 18. On December 12, the cloudiest day of the year, the sky is overcast or mostly cloudy 87% of the time, and clear, mostly clear, or partly cloudy 13% of the time.

Cloud Cover Categories

Cloud Cover Categories at Brasilia International AirportclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 3076%Jul 3076%Dec 1213%Dec 1213%Apr 1844%Apr 1844%Oct 944%Oct 944%clearmostly cloudyovercastmostly clearpartly cloudy
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 at Brasilia International Airport varies very significantly throughout the year.

The wetter season lasts 6.1 months, from October 10 to April 13, with a greater than 41% chance of a given day being a wet day. The chance of a wet day peaks at 79% on December 6.

The drier season lasts 5.9 months, from April 13 to October 10. The smallest chance of a wet day is 1% on July 28.

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 79% on December 6.

Daily Chance of Precipitation

Daily Chance of Precipitation at Brasilia International AirportwetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Dec 679%Dec 679%Jul 281%Jul 281%Oct 1041%Oct 1041%Apr 1341%Apr 1341%rain
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. Brasilia International Airport experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.2 months, from August 22 to May 28, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around December 16, with an average total accumulation of 8.7 inches.

The rainless period of the year lasts for 2.8 months, from May 28 to August 22. The least rain falls around July 17, with an average total accumulation of 0.1 inches.

Average Monthly Rainfall

Average Monthly Rainfall at Brasilia International AirportrainrainJanFebMarAprMayJunJulAugSepOctNovDec0 in2 in4 in6 in8 in10 in12 in14 in16 inDec 168.7 inDec 168.7 inJul 170.1 inJul 170.1 inAug 220.5 inAug 220.5 inMay 280.5 inMay 280.5 in
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.

Sun

The length of the day at Brasilia International Airport varies over the course of the year. In 2017, the shortest day is June 21, with 11 hours, 11 minutes of daylight; the longest day is December 21, with 13 hours, 5 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight at Brasilia International AirportJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minSep 2212 hr, 7 minSep 2213 hr, 5 minDec 2113 hr, 5 minDec 2112 hr, 7 minMar 2012 hr, 7 minMar 2011 hr, 11 minJun 2111 hr, 11 minJun 21daydaynight
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 5:44 AM on October 14, and the latest sunrise is 1 hour, 24 minutes later at 7:08 AM on February 18. The earliest sunset is at 5:46 PM on June 1, and the latest sunset is 2 hours, 3 minutes later at 7:50 PM on January 19.

Daylight saving time (DST) is observed at Brasilia International Airport during 2017, starting in the spring on October 15 and ending in the fall on February 18.

Sunrise & Sunset with Twilight and Daylight Saving Time

Sunrise & Sunset with Twilight and Daylight Saving Time at Brasilia International AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMOct 145:44 AMOct 145:44 AM7:50 PMJan 197:50 PMJan 19Jun 15:46 PMJun 15:46 PM7:08 AMFeb 187:08 AMFeb 18DSTFeb 18DSTFeb 18Oct 15DSTOct 15DSTdaynightnight
The solar day over the course of the year 2017. 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 transitions to and from daylight saving time are indicated by the 'DST' labels.

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.

Brasilia International Airport experiences significant seasonal variation in the perceived humidity.

The muggier period of the year lasts for 6.4 months, from October 17 to April 30, during which time the comfort level is muggy, oppressive, or miserable at least 9% of the time. The muggiest day of the year is March 14, with muggy conditions 36% of the time.

The least muggy day of the year is August 4, when muggy conditions are essentially unheard of.

Humidity Comfort Levels

Humidity Comfort Levels at Brasilia International AirportmuggymuggyJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Aug 40%Aug 40%Mar 1436%Mar 1436%Oct 179%Oct 179%Apr 309%Apr 309%comfortablecomfortabledrydryhumidhumidmuggymuggy
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 at Brasilia International Airport experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 3.9 months, from June 12 to October 8, with average wind speeds of more than 3.8 miles per hour. The windiest day of the year is August 28, with an average hourly wind speed of 4.6 miles per hour.

The calmer time of year lasts for 8.1 months, from October 8 to June 12. The calmest day of the year is March 12, with an average hourly wind speed of 3.0 miles per hour.

Average Wind Speed

Average Wind Speed at Brasilia International AirportwindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph1 mph2 mph3 mph4 mph5 mph6 mph7 mphAug 284.6 mphAug 284.6 mphMar 123.0 mphMar 123.0 mphJun 123.8 mphJun 123.8 mphOct 83.8 mphOct 83.8 mph
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 at Brasilia International Airport varies throughout the year.

The wind is most often from the east for 10 months, from January 14 to November 22, with a peak percentage of 87% on August 10. The wind is most often from the north for 1.7 months, from November 22 to January 14, with a peak percentage of 38% on January 1.

Wind Direction

Wind Direction at Brasilia International AirportNENJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%eastwestnorthsouth
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).

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 2.1 months, from August 23 to October 25, with an average daily incident shortwave energy per square meter above 6.1 kWh. The brightest day of the year is September 13, with an average of 6.4 kWh.

The darker period of the year lasts for 2.1 months, from May 13 to July 15, with an average daily incident shortwave energy per square meter below 5.4 kWh. The darkest day of the year is June 8, with an average of 5.1 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy at Brasilia International AirportbrightdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWhSep 136.4 kWhSep 136.4 kWhJun 85.1 kWhJun 85.1 kWhOct 256.1 kWhOct 256.1 kWhJul 155.4 kWhJul 155.4 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 Brasilia International Airport are -15.871 deg latitude, -47.919 deg longitude, and 3,442 ft elevation.

The topography within 2 miles of Brasilia International Airport contains only modest variations in elevation, with a maximum elevation change of 299 feet and an average elevation above sea level of 3,425 feet. Within 10 miles contains only modest variations in elevation (1,191 feet). Within 50 miles contains very significant variations in elevation (2,428 feet).

The area within 2 miles of Brasilia International Airport is covered by shrubs (61%), trees (18%), and grassland (15%), within 10 miles by shrubs (38%) and trees (21%), and within 50 miles by shrubs (31%) and trees (29%).

Data Sources

This report illustrates the typical weather at Brasilia 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

Brasilia 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 Anapolis AFB.

Other Data

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.