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Average Weather in August in La Rioja Argentina

Daily high temperatures increase by 7°F, from 68°F to 75°F, rarely falling below 57°F or exceeding 88°F.

Daily low temperatures increase by 8°F, from 43°F to 50°F, rarely falling below 34°F or exceeding 59°F.

For reference, on December 25, the hottest day of the year, temperatures in La Rioja typically range from 71°F to 94°F, while on July 12, the coldest day of the year, they range from 41°F to 65°F.

Average High and Low Temperature in August

Average High and Low Temperature in August in La Rioja18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313130°F30°F35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°FJulSepAug 168°FAug 168°F43°F43°FAug 3175°FAug 3175°F50°F50°FAug 1170°FAug 1170°F45°F45°FAug 2173°FAug 2173°F48°F48°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 hourly average temperatures for the quarter of the year centered on August. 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 August

Average Hourly Temperature in August in La Rioja18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMJulSepvery coldcoldcoldcoolcomfortablewarm
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.

Bogalusa, Louisiana, United States (4,431 miles away); Alice Springs, Australia (8,527 miles); and Roxby Downs, Australia (8,017 miles) are the far-away foreign places with temperatures most similar to La Rioja (view comparison).

Clouds

The month of August in La Rioja experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 25% to 19%.

The clearest day of the month is August 30, with clear, mostly clear, or partly cloudy conditions 81% of the time.

For reference, on May 31, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 35%, while on March 20, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 84%.

Cloud Cover Categories in August

Cloud Cover Categories in August in La Rioja1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JulSepAug 175%Aug 175%Aug 3181%Aug 3181%Aug 1177%Aug 1177%Aug 2179%Aug 2179%clearmostly clearovercastpartly 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. In La Rioja, the chance of a wet day over the course of August is essentially constant, remaining around 2% throughout.

For reference, the year's highest daily chance of a wet day is 31% on January 10, and its lowest chance is 1% on August 8.

Probability of Precipitation in August

Probability of Precipitation in August in La Rioja1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0%0.0%0.5%0.5%1.0%1.0%1.5%1.5%2.0%2.0%2.5%2.5%3.0%3.0%3.5%3.5%4.0%4.0%4.5%4.5%5.0%5.0%JulSepAug 71%Aug 71%Aug 312%Aug 312%Aug 212%Aug 212%rainmixed
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 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 August in La Rioja is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.5 inches or falling below -0.0 inches.

Average Monthly Rainfall in August

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

Over the course of August in La Rioja, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 45 minutes, implying an average daily increase of 1 minute, 30 seconds, and weekly increase of 10 minutes, 29 seconds.

The shortest day of the month is August 1, with 10 hours, 45 minutes of daylight and the longest day is August 31, with 11 hours, 29 minutes of daylight.

Hours of Daylight and Twilight in August

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 latest sunrise of the month in La Rioja is 8:11 AM on August 1 and the earliest sunrise is 29 minutes earlier at 7:43 AM on August 31.

The earliest sunset is 6:56 PM on August 1 and the latest sunset is 16 minutes later at 7:12 PM on August 31.

Daylight saving time is not observed in La Rioja during 2021.

For reference, on December 21, the longest day of the year, the Sun rises at 6:24 AM and sets 14 hours, 2 minutes later, at 8:26 PM, while on June 21, the shortest day of the year, it rises at 8:21 AM and sets 10 hours, 16 minutes later, at 6:37 PM.

Sunrise & Sunset with Twilight in August

The solar day over the course of August. 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 August 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in August

Moon in La Rioja18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMJulSepJul 910:17 PMJul 910:17 PMJul 2311:38 PMJul 2311:38 PMAug 810:51 AMAug 810:51 AMAug 229:03 AMAug 229:03 AMSep 69:52 PMSep 69:52 PMSep 208:55 PMSep 208:55 PM8:07 AM8:07 AM6:24 PM6:24 PM6:26 PM6:26 PM8:54 AM8:54 AM8:23 AM8:23 AM7:10 PM7:10 PM6:22 PM6:22 PM8:14 AM8:14 AM7:36 AM7:36 AM7:01 PM7:01 PM7:12 PM7:12 PM7:52 AM7:52 AM
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.

The chance that a given day will be muggy in La Rioja is essentially constant during August, remaining around 0% throughout.

For reference, on January 23, the muggiest day of the year, there are muggy conditions 51% of the time, while on May 31, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in August

Humidity Comfort Levels in August in La Rioja1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%JulSepAug 10%Aug 10%Aug 310%Aug 310%Aug 110%Aug 110%Aug 210%Aug 210%drydryhumidhumidcomfortablecomfortable
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 in La Rioja is gradually increasing during August, increasing from 5.7 miles per hour to 6.7 miles per hour over the course of the month.

For reference, on November 23, the windiest day of the year, the daily average wind speed is 9.2 miles per hour, while on June 16, the calmest day of the year, the daily average wind speed is 4.9 miles per hour.

Average Wind Speed in August

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in La Rioja throughout August is predominantly from the east, with a peak proportion of 46% on August 31.

Wind Direction in August

Wind Direction in August in La Rioja1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%JulSepsoutheastwestnorth
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).

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).

The growing season in La Rioja typically lasts for 11 months (342 days), from around July 19 to around June 25, rarely starting after August 26, or ending before May 31.

The month of August in La Rioja is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season rapidly increasing from 68% to 93% over the course of the month.

Time Spent in Various Temperature Bands and the Growing Season in August

Time Spent in Various Temperature Bands and the Growing Season in August in La Rioja1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JulSep68%Aug 168%Aug 193%Aug 3193%Aug 3178%Aug 1178%Aug 1186%Aug 2186%Aug 2150%Jul 1950%Jul 1942%Jul 942%Jul 9very coldcoldcoolcomfortablewarmhot
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.

The average accumulated growing degree days in La Rioja are increasing during August, increasing by 280°F, from 167°F to 448°F, over the course of the month.

Growing Degree Days in August

The average growing degree days accumulated over the course of August, 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 in La Rioja is increasing during August, rising by 1.0 kWh, from 4.3 kWh to 5.4 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in August

Average Daily Incident Shortwave Solar Energy in August in La Rioja1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhJulSepAug 14.3 kWhAug 14.3 kWhAug 315.4 kWhAug 315.4 kWhAug 114.7 kWhAug 114.7 kWhAug 215.0 kWhAug 215.0 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 La Rioja are -29.411 deg latitude, -66.851 deg longitude, and 1,647 ft elevation.

The topography within 2 miles of La Rioja contains only modest variations in elevation, with a maximum elevation change of 433 feet and an average elevation above sea level of 1,668 feet. Within 10 miles contains only modest variations in elevation (6,191 feet). Within 50 miles also contains extreme variations in elevation (12,740 feet).

The area within 2 miles of La Rioja is covered by grassland (31%), bare soil (22%), trees (22%), and shrubs (17%), within 10 miles by shrubs (66%) and trees (18%), and within 50 miles by shrubs (48%) and bare soil (18%).

Data Sources

This report illustrates the typical weather in La Rioja, 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 is only a single weather station, Capitán Vicente Almandos Almonacid Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of La Rioja.

At a distance of 6 kilometers from La Rioja, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

The station records are corrected for the elevation difference between the station and La Rioja according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

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.