Average Weather in March in Buenos Aires Costa Rica
Daily high temperatures are around 88°F, rarely falling below 85°F or exceeding 91°F. The highest daily average high temperature is 88°F on March 23.
Daily low temperatures are around 72°F, rarely falling below 69°F or exceeding 75°F.
For reference, on March 22, the hottest day of the year, temperatures in Buenos Aires typically range from 72°F to 88°F, while on January 22, the coldest day of the year, they range from 71°F to 86°F.
Average High and Low Temperature in March
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on March. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature in March
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
Machinda, Equatorial Guinea (6,429 miles away); Ungaran, Indonesia (11,499 miles); and Tignapalan, Philippines (10,181 miles) are the far-away foreign places with temperatures most similar to Buenos Aires (view comparison).
The month of March in Buenos Aires experiences rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 52% to 66%.
The clearest day of the month is March 1, with clear, mostly clear, or partly cloudy conditions 48% of the time.
For reference, on June 4, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 97%, while on January 2, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 59%.
Cloud Cover Categories in March
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Buenos Aires, the chance of a wet day over the course of March is gradually increasing, starting the month at 13% and ending it at 16%.
For reference, the year's highest daily chance of a wet day is 55% on October 6, and its lowest chance is 11% on January 26.
Probability of Precipitation in March
To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day rainfall during March in Buenos Aires is increasing, starting the month at 1.1 inches, when it rarely exceeds 2.9 inches, and ending the month at 1.6 inches, when it rarely exceeds 3.6 inches or falls below 0.2 inches.
The lowest average 31-day accumulation is 1.1 inches on March 12.
Average Monthly Rainfall in March
Over the course of March in Buenos Aires, the length of the day is gradually increasing. From the start to the end of the month, the length of the day increases by 15 minutes, implying an average daily increase of 30 seconds, and weekly increase of 3 minutes, 32 seconds.
The shortest day of the month is March 1, with 11 hours, 57 minutes of daylight and the longest day is March 31, with 12 hours, 12 minutes of daylight.
Hours of Daylight and Twilight in March
The latest sunrise of the month in Buenos Aires is 5:46 AM on March 1 and the earliest sunrise is 16 minutes earlier at 5:31 AM on March 31.
The latest sunset is 5:44 PM on March 7 and the earliest sunset is 48 seconds earlier at 5:43 PM on March 31.
Daylight saving time is not observed in Buenos Aires during 2020.
For reference, on June 20, the longest day of the year, the Sun rises at 5:15 AM and sets 12 hours, 40 minutes later, at 5:54 PM, while on December 21, the shortest day of the year, it rises at 5:43 AM and sets 11 hours, 35 minutes later, at 5:19 PM.
Sunrise & Sunset with Twilight in March
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.
The chance that a given day will be muggy in Buenos Aires is very rapidly increasing during March, rising from 41% to 61% over the course of the month.
For reference, on June 4, the muggiest day of the year, there are muggy conditions 99% of the time, while on February 10, the least muggy day of the year, there are muggy conditions 37% of the time.
Humidity Comfort Levels in March
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
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 in Buenos Aires is essentially constant during March, remaining within 0.2 miles per hour of 2.5 miles per hour throughout.
For reference, on October 8, the windiest day of the year, the daily average wind speed is 3.2 miles per hour, while on December 9, the calmest day of the year, the daily average wind speed is 1.9 miles per hour.
Average Wind Speed in March
The hourly average wind direction in Buenos Aires throughout March is predominantly from the north, with a peak proportion of 66% on March 1.
Wind Direction in March
Buenos Aires 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 surface water temperature in Buenos Aires is essentially constant during March, remaining around 84°F throughout.
Average Water Temperature in March
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 in Buenos Aires 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 in March
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
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.
The average accumulated growing degree days in Buenos Aires are rapidly increasing during March, increasing by 858°F, from 1,671°F to 2,529°F, over the course of the month.
Growing Degree Days in March
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 in Buenos Aires is essentially constant during March, remaining within 0.1 kWh of 6.4 kWh throughout.
The highest average daily incident shortwave solar energy during March is 6.5 kWh on March 16.
Average Daily Incident Shortwave Solar Energy in March
For the purposes of this report, the geographical coordinates of Buenos Aires are 9.172 deg latitude, -83.334 deg longitude, and 1,247 ft elevation.
The topography within 2 miles of Buenos Aires contains significant variations in elevation, with a maximum elevation change of 659 feet and an average elevation above sea level of 1,196 feet. Within 10 miles contains significant variations in elevation (6,158 feet). Within 50 miles also contains extreme variations in elevation (12,520 feet).
The area within 2 miles of Buenos Aires is covered by grassland (41%), trees (32%), cropland (15%), and shrubs (12%), within 10 miles by trees (44%) and grassland (32%), and within 50 miles by trees (57%) and water (20%).
This report illustrates the typical weather in Buenos Aires year round, 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
There are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Buenos Aires.
For each station, the records are corrected for the elevation difference between that station and Buenos Aires according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Buenos Aires is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Buenos Aires and a given station.
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 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.
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.