Climate and Average Weather Year Round at Viracopos International Airport BrazilAt Viracopos International Airport, the summers are long, warm, muggy, wet, and mostly cloudy and the winters are short, comfortable, and mostly clear. Over the course of the year, the temperature typically varies from 55°F to 86°F and is rarely below 49°F or above 92°F. Based on the tourism score, the best time of year to visit Viracopos International Airport for warm-weather activities is from mid April to late September. Average Temperature at Viracopos International AirportThe hot season lasts for 4.8 months, from November 2 to March 28, with an average daily high temperature above 83°F. The hottest month of the year at Viracopos International Airport is February, with an average high of 85°F and low of 68°F. The cool season lasts for 2.6 months, from May 13 to August 1, with an average daily high temperature below 77°F. The coldest month of the year at Viracopos International Airport is June, with an average low of 56°F and high of 75°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. Tshaneni, Swaziland (4,887 miles away) and Ta‘izz, Yemen (6,661 miles) are the far-away foreign places with temperatures most similar to Viracopos International Airport (view comparison). CloudsAt Viracopos International Airport, 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 at Viracopos International Airport begins around March 31 and lasts for 6.4 months, ending around October 13. The clearest month of the year at Viracopos International Airport is August, during which on average the sky is clear, mostly clear, or partly cloudy 71% of the time. The cloudier part of the year begins around October 13 and lasts for 5.6 months, ending around March 31. The cloudiest month of the year at Viracopos International Airport is January, during which on average the sky is overcast or mostly cloudy 71% of the time.
PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Viracopos International Airport varies very significantly throughout the year. The wetter season lasts 5.3 months, from October 19 to March 28, with a greater than 39% chance of a given day being a wet day. The month with the most wet days at Viracopos International Airport is January, with an average of 20.3 days with at least 0.04 inches of precipitation. The drier season lasts 6.7 months, from March 28 to October 19. The month with the fewest wet days at Viracopos International Airport is July, with an average of 4.1 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 at Viracopos International Airport is January, with an average of 20.3 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 67% on January 16.
RainfallTo 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. Viracopos International Airport experiences extreme seasonal variation in monthly rainfall. Rain falls throughout the year at Viracopos International Airport. The month with the most rain at Viracopos International Airport is January, with an average rainfall of 8.3 inches. The month with the least rain at Viracopos International Airport is July, with an average rainfall of 1.3 inches.
SunThe length of the day at Viracopos International Airport varies over the course of the year. In 2024, the shortest day is June 20, with 10 hours, 43 minutes of daylight; the longest day is December 21, with 13 hours, 33 minutes of daylight.
The earliest sunrise is at 5:14 AM on November 28, and the latest sunrise is 1 hour, 36 minutes later at 6:50 AM on July 4. The earliest sunset is at 5:30 PM on June 6, and the latest sunset is 1 hour, 29 minutes later at 6:59 PM on January 14. Daylight saving time (DST) is not observed at Viracopos International Airport during 2024. 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. MoonThe 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. HumidityWe 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. Viracopos International Airport experiences extreme seasonal variation in the perceived humidity. The muggier period of the year lasts for 6.5 months, from October 14 to April 29, during which time the comfort level is muggy, oppressive, or miserable at least 20% of the time. The month with the most muggy days at Viracopos International Airport is January, with 22.6 days that are muggy or worse. The month with the fewest muggy days at Viracopos International Airport is July, with 0.3 days that are muggy or worse.
WindThis 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 Viracopos International Airport experiences mild seasonal variation over the course of the year. The windier part of the year lasts for 4.4 months, from August 3 to December 14, with average wind speeds of more than 7.8 miles per hour. The windiest month of the year at Viracopos International Airport is September, with an average hourly wind speed of 9.0 miles per hour. The calmer time of year lasts for 7.6 months, from December 14 to August 3. The calmest month of the year at Viracopos International Airport is February, with an average hourly wind speed of 6.6 miles per hour.
The predominant average hourly wind direction at Viracopos International Airport varies throughout the year. The wind is most often from the east for 4.1 months, from February 13 to June 15 and for 6.1 months, from June 23 to December 25, with a peak percentage of 46% on March 30. The wind is most often from the north for 1.1 weeks, from June 15 to June 23 and for 1.6 months, from December 25 to February 13, with a peak percentage of 37% on June 22. Water TemperatureViracopos International Airport 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 3.8 months, from December 26 to April 19, with an average temperature above 78°F. The month of the year at Viracopos International Airport with the warmest water is February, with an average temperature of 80°F. The time of year with cooler water lasts for 3.4 months, from June 23 to October 4, with an average temperature below 70°F. The month of the year at Viracopos International Airport with the coolest water is August, with an average temperature of 68°F.
Best Time of Year to VisitTo characterize how pleasant the weather is at Viracopos International Airport 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 Viracopos International Airport for general outdoor tourist activities is from mid April to late September, with a peak score in the last week of August. Tourism Score at Viracopos International AirportThe 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 Viracopos International Airport for hot-weather activities are from early March to late April and from mid to late November, with a peak score in the second week of April. Beach/Pool Score at Viracopos International AirportMethodologyFor 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 SeasonDefinitions 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 Viracopos International Airport 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. 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. Solar EnergyThis 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 3.0 months, from October 6 to January 6, with an average daily incident shortwave energy per square meter above 6.1 kWh. The brightest month of the year at Viracopos International Airport is November, with an average of 6.6 kWh. The darker period of the year lasts for 2.5 months, from May 10 to July 27, with an average daily incident shortwave energy per square meter below 4.5 kWh. The darkest month of the year at Viracopos International Airport is June, with an average of 4.0 kWh.
TopographyFor the purposes of this report, the geographical coordinates of Viracopos International Airport are -23.007 deg latitude, -47.135 deg longitude, and 2,162 ft elevation. The topography within 2 miles of Viracopos International Airport contains only modest variations in elevation, with a maximum elevation change of 348 feet and an average elevation above sea level of 2,109 feet. Within 10 miles contains only modest variations in elevation (1,020 feet). Within 50 miles contains very significant variations in elevation (3,471 feet). The area within 2 miles of Viracopos International Airport is covered by shrubs (43%), cropland (24%), grassland (16%), and trees (15%), within 10 miles by cropland (28%) and shrubs (27%), and within 50 miles by cropland (30%) and trees (29%). Data SourcesThis report illustrates the typical weather at Viracopos 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 PointViracopos 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. The stations on which we may fall back are Congonhas-São Paulo Airport and São Paulo–Guarulhos International Airport. Other DataAll 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. DisclaimerThe 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. |