Climate and Average Weather Year Round in Belén ArgentinaIn Belén, the summers are long and hot; the winters are short, cool, and dry; and it is mostly clear year round. Over the course of the year, the temperature typically varies from 46°F to 89°F and is rarely below 38°F or above 96°F. Based on the tourism score, the best times of year to visit Belén for warm-weather activities are from mid February to early May and from mid September to mid December. Average Temperature in BelénThe hot season lasts for 4.3 months, from October 23 to March 2, with an average daily high temperature above 86°F. The hottest month of the year in Belén is December, with an average high of 89°F and low of 65°F. The cool season lasts for 2.7 months, from May 19 to August 9, with an average daily high temperature below 75°F. The coldest month of the year in Belén is July, with an average low of 46°F and high of 72°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. Cuencamé, Mexico (4,378 miles away) and Windhoek, Namibia (5,175 miles) are the far-away foreign places with temperatures most similar to Belén (view comparison). CloudsIn Belén, 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 in Belén begins around July 10 and lasts for 5.2 months, ending around December 16. The clearest month of the year in Belén is September, during which on average the sky is clear, mostly clear, or partly cloudy 87% of the time. The cloudier part of the year begins around December 16 and lasts for 6.8 months, ending around July 10. The cloudiest month of the year in Belén is January, during which on average the sky is overcast or mostly cloudy 27% 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 in Belén varies significantly throughout the year. The wetter season lasts 4.5 months, from November 17 to April 2, with a greater than 18% chance of a given day being a wet day. The month with the most wet days in Belén is January, with an average of 10.3 days with at least 0.04 inches of precipitation. The drier season lasts 7.5 months, from April 2 to November 17. The month with the fewest wet days in Belén is August, with an average of 0.8 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 in Belén is January, with an average of 10.3 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 35% on January 2.
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. Belén experiences significant seasonal variation in monthly rainfall. The rainy period of the year lasts for 6.7 months, from October 8 to April 29, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Belén is January, with an average rainfall of 3.1 inches. The rainless period of the year lasts for 5.3 months, from April 29 to October 8. The month with the least rain in Belén is August, with an average rainfall of 0.1 inches.
SunThe length of the day in Belén varies over the course of the year. In 2024, the shortest day is June 20, with 10 hours, 23 minutes of daylight; the longest day is December 21, with 13 hours, 54 minutes of daylight.
The earliest sunrise is at 6:24 AM on December 1, and the latest sunrise is 1 hour, 55 minutes later at 8:19 AM on July 1. The earliest sunset is at 6:40 PM on June 8, and the latest sunset is 1 hour, 48 minutes later at 8:28 PM on January 11. Daylight saving time (DST) is not observed in Belén 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. The perceived humidity level in Belén, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 1% of 1% throughout.
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 in Belén experiences significant seasonal variation over the course of the year. The windier part of the year lasts for 6.0 months, from September 7 to March 8, with average wind speeds of more than 6.7 miles per hour. The windiest month of the year in Belén is November, with an average hourly wind speed of 8.2 miles per hour. The calmer time of year lasts for 6.0 months, from March 8 to September 7. The calmest month of the year in Belén is June, with an average hourly wind speed of 5.2 miles per hour.
The predominant average hourly wind direction in Belén varies throughout the year. The wind is most often from the south for 1.0 months, from April 24 to May 25 and for 2.0 months, from July 21 to September 20, with a peak percentage of 33% on September 14. The wind is most often from the north for 1.9 months, from May 25 to July 21, with a peak percentage of 33% on June 26. The wind is most often from the east for 7.1 months, from September 20 to April 24, with a peak percentage of 47% on January 1. Best Time of Year to VisitTo characterize how pleasant the weather is in Belén 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 times of year to visit Belén for general outdoor tourist activities are from mid February to early May and from mid September to mid December, with a peak score in the last week of March. Tourism Score in BelénThe 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 Belén for hot-weather activities is from late October to mid March, with a peak score in the third week of December. Beach/Pool Score in BelénMethodologyFor 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). While it does not do so every year, freezing temperatures are seen in Belén over some winters. The day least likely to be in the growing season is July 15, with a 63% chance. 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 Belén should appear around July 12, only rarely appearing before July 10 or after July 17. 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 significant seasonal variation over the course of the year. The brighter period of the year lasts for 3.6 months, from October 10 to January 30, with an average daily incident shortwave energy per square meter above 7.7 kWh. The brightest month of the year in Belén is November, with an average of 8.5 kWh. The darker period of the year lasts for 3.0 months, from May 3 to August 4, with an average daily incident shortwave energy per square meter below 5.1 kWh. The darkest month of the year in Belén is June, with an average of 4.2 kWh.
TopographyFor the purposes of this report, the geographical coordinates of Belén are -27.651 deg latitude, -67.029 deg longitude, and 4,140 ft elevation. The topography within 2 miles of Belén contains large variations in elevation, with a maximum elevation change of 2,096 feet and an average elevation above sea level of 4,453 feet. Within 10 miles contains large variations in elevation (4,865 feet). Within 50 miles also contains extreme variations in elevation (13,681 feet). The area within 2 miles of Belén is covered by shrubs (49%), bare soil (22%), grassland (14%), and trees (14%), within 10 miles by shrubs (57%) and grassland (16%), and within 50 miles by bare soil (43%) and sparse vegetation (17%). Data SourcesThis report illustrates the typical weather in Belén, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Belén 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 Belén, 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 Algorithms 2nd Edition , 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 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. |