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Average Weather at Vilhena Aeroporto Brazil

At Vilhena Aeroporto, the wet season is warm, oppressive, and overcast and the dry season is hot, humid, and partly cloudy. Over the course of the year, the temperature typically varies from 64°F to 88°F and is rarely below 57°F or above 93°F.

Based on the tourism score, the best time of year to visit Vilhena Aeroporto for warm-weather activities is from mid June to late August.

Climate Summary

warmhotwarmJanFebMarAprMayJunJulAugSepOctNovDecNowNow73%73%12%12%overcastclearprecipitation: 11.7 inprecipitation: 11.7 in0.3 in0.3 inmuggy: 100%muggy: 100%22%22%tourism score: 7.1tourism score: 7.13.83.8
Click on each chart for more information.

Temperature

The temperature at Vilhena Aeroporto varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons.

Average High and Low Temperature

Average High and Low Temperature at Vilhena AeroportoJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJul 1184°FJul 1184°FAug 2688°FAug 2688°F64°F64°F67°F67°FOct 587°FOct 587°FDec 783°FDec 783°FMar 2183°FMar 2183°F70°F70°F71°F71°F70°F70°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.

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 Vilhena AeroportoJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcomfortablecomfortablewarmhotcool
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.

Kigoma, Tanzania (6,133 miles away) is the far-away foreign place with temperatures most similar to Vilhena Aeroporto (view comparison).

Clouds

At Vilhena Aeroporto, 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 Vilhena Aeroporto begins around May 28 and lasts for 4.2 months, ending around October 2. On July 30, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 73% of the time, and overcast or mostly cloudy 27% of the time.

The cloudier part of the year begins around October 2 and lasts for 7.8 months, ending around May 28. On January 11, the cloudiest day of the year, the sky is overcast or mostly cloudy 88% of the time, and clear, mostly clear, or partly cloudy 12% of the time.

Cloud Cover Categories

Cloud Cover Categories at Vilhena AeroportoclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 3073%Jul 3073%Jan 1112%Jan 1112%May 2842%May 2842%Oct 243%Oct 243%NowNowclearovercastmostly cloudypartly 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.

Precipitation

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

The wetter season lasts 6.8 months, from October 1 to April 26, with a greater than 45% chance of a given day being a wet day. The chance of a wet day peaks at 86% on February 7.

The drier season lasts 5.2 months, from April 26 to October 1. The smallest chance of a wet day is 4% on July 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 86% on February 7.

Daily Chance of Precipitation

Daily Chance of Precipitation at Vilhena AeroportowetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 786%Feb 786%Jul 184%Jul 184%Jan 180%Jan 180%Oct 145%Oct 145%Apr 2645%Apr 2645%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. Vilhena Aeroporto experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 11 months, from July 31 to June 19, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around January 26, with an average total accumulation of 11.7 inches.

The rainless period of the year lasts for 1.4 months, from June 19 to July 31. The least rain falls around July 9, with an average total accumulation of 0.3 inches.

Average Monthly Rainfall

Average Monthly Rainfall at Vilhena AeroportorainrainJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in5 in5 in10 in10 in15 in15 inJan 2611.7 inJan 2611.7 inJul 90.3 inJul 90.3 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 Vilhena Aeroporto does not vary substantially over the course of the year, staying within 52 minutes of 12 hours throughout. In 2021, the shortest day is June 20, with 11 hours, 23 minutes of daylight; the longest day is December 21, with 12 hours, 53 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight at Vilhena AeroportoJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minSep 2212 hr, 7 minSep 2212 hr, 53 minDec 2112 hr, 53 minDec 2112 hr, 7 minMar 2012 hr, 7 minMar 2011 hr, 23 minJun 2011 hr, 23 minJun 20daydaynightNowNow
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 5:23 AM on November 19, and the latest sunrise is 59 minutes later at 6:23 AM on July 10. The earliest sunset is at 5:40 PM on May 30, and the latest sunset is 53 minutes later at 6:34 PM on January 23.

Daylight saving time (DST) is not observed at Vilhena Aeroporto during 2021.

Sunrise & Sunset with Twilight

Sunrise & Sunset with Twilight at Vilhena AeroportoJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMNov 195:23 AMNov 195:23 AM6:34 PMJan 236:34 PMJan 23May 305:40 PMMay 305:40 PM6:23 AMJul 106:23 AMJul 10daySolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2021. 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.

Moon

The figure below presents a compact representation of key lunar data for 2021. 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

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.

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.

Vilhena Aeroporto experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 10 months, from August 26 to June 28, during which time the comfort level is muggy, oppressive, or miserable at least 41% of the time. The muggiest day of the year is January 23, with muggy conditions 100% of the time.

The least muggy day of the year is July 31, with muggy conditions 22% of the time.

Humidity Comfort Levels

Humidity Comfort Levels at Vilhena AeroportomuggymuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jul 3122%Jul 3122%100%Jan 23100%Jan 23Aug 2641%Aug 2641%Jun 2841%Jun 2841%NowNowoppressiveoppressivemuggymuggydrydryhumidhumidcomfortablecomfortable
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.

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 Vilhena Aeroporto does not vary significantly over the course of the year, remaining within 0.4 miles per hour of 1.9 miles per hour throughout.

Average Wind Speed

Average Wind Speed at Vilhena AeroportoJanFebMarAprMayJunJulAugSepOctNovDec0.0 mph0.0 mph0.5 mph0.5 mph1.0 mph1.0 mph1.5 mph1.5 mph2.0 mph2.0 mph2.5 mph2.5 mph3.0 mph3.0 mph3.5 mph3.5 mphAug 32.3 mphAug 32.3 mphMar 51.5 mphMar 51.5 mphNowNow
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 Vilhena Aeroporto varies throughout the year.

The wind is most often from the east for 5.2 months, from April 1 to September 6, with a peak percentage of 67% on June 13. The wind is most often from the north for 6.8 months, from September 6 to April 1, with a peak percentage of 58% on January 1.

Wind Direction

Wind Direction at Vilhena AeroportoNENJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNoweastnorthsouthwest
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).

Best Time of Year to Visit

To characterize how pleasant the weather is at Vilhena Aeroporto 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 Vilhena Aeroporto for general outdoor tourist activities is from mid June to late August, with a peak score in the third week of July.

Tourism Score

Tourism Score at Vilhena Aeroportobest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.17.13.83.8NowNowprecipitationprecipitationcloudscloudstemperaturetemperature tourism 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 Vilhena Aeroporto for hot-weather activities is from late June to late September, with a peak score in the third week of August.

Beach/Pool Score

Beach/Pool Score at Vilhena Aeroportobest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.96.93.93.9NowNowprecipitationprecipitationcloudscloudstemperaturetemperature beach/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).

Temperatures at Vilhena Aeroporto 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

Time Spent in Various Temperature Bands and the Growing Season at Vilhena AeroportoJanFebMarAprMayJunJulAugSepOctNovDec0%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 3100%Jul 3NowNowcomfortablewarmhotcool
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

Growing Degree Days at Vilhena AeroportoJanFebMarAprMayJunJulAugSepOctNovDec0°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°FJul 590°FJul 590°FAug 9900°FAug 9900°FJun 308,978°FJun 308,978°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 per square meter does not vary significantly over the course of the year, remaining within 0.4 kilowatt-hours of 5.4 kilowatt-hours throughout.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy at Vilhena AeroportoJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhOct 115.9 kWhOct 115.9 kWhMay 205.0 kWhMay 205.0 kWhJul 35.2 kWhJul 35.2 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.

Data Sources

This report illustrates the typical weather at Vilhena Aeroporto, 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

Vilhena Aeroporto 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.

There are no other weather stations in our network within 200 kilometers of this location. Consequently, in the case of missing or erroneous measurements from this station, we fall back on NASA's MERRA-2 modern-era reanalysis , adjusted according to typical seasonal and diurnal differences between this station and the wide-area MERRA-2 reconstructed values.

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 © 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.