Climate and Average Weather Year Round in Río Colorado Argentina

In Río Colorado, the summers are hot and mostly clear; the winters are cold, dry, and partly cloudy; and it is windy year round. Over the course of the year, the temperature typically varies from 36°F to 91°F and is rarely below 26°F or above 101°F.

Based on the tourism score, the best time of year to visit Río Colorado for warm-weather activities is from late October to late March.

The hot season lasts for 3.5 months, from November 24 to March 6, with an average daily high temperature above 84°F. The hottest month of the year in Río Colorado is January, with an average high of 91°F and low of 63°F.

The cool season lasts for 3.2 months, from May 16 to August 23, with an average daily high temperature below 63°F. The coldest month of the year in Río Colorado is July, with an average low of 36°F and high of 57°F.

In Río Colorado, 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 in Río Colorado begins around October 19 and lasts for 5.8 months, ending around April 13.

The clearest month of the year in Río Colorado is January, during which on average the sky is clear, mostly clear, or partly cloudy 77% of the time.

The cloudier part of the year begins around April 13 and lasts for 6.2 months, ending around October 19.

The cloudiest month of the year in Río Colorado is June, during which on average the sky is overcast or mostly cloudy 52% of the time.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Río Colorado varies throughout the year.

The wetter season lasts 7.2 months, from September 18 to April 24, with a greater than 17% chance of a given day being a wet day. The month with the most wet days in Río Colorado is February, with an average of 6.5 days with at least 0.04 inches of precipitation.

The drier season lasts 4.8 months, from April 24 to September 18. The month with the fewest wet days in Río Colorado is August, with an average of 3.3 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 Río Colorado is February, with an average of 6.5 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 24% on February 4.

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. Río Colorado experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year in Río Colorado. The month with the most rain in Río Colorado is February, with an average rainfall of 2.2 inches.

The month with the least rain in Río Colorado is June, with an average rainfall of 0.8 inches.

The length of the day in Río Colorado varies significantly over the course of the year. In 2024, the shortest day is June 20, with 9 hours, 26 minutes of daylight; the longest day is December 21, with 14 hours, 55 minutes of daylight.

The earliest sunrise is at 5:43 AM on December 7, and the latest sunrise is 2 hours, 52 minutes later at 8:36 AM on June 28. The earliest sunset is at 6:00 PM on June 12, and the latest sunset is 2 hours, 45 minutes later at 8:45 PM on January 4.

Daylight saving time (DST) is not observed in Río Colorado during 2024.

The 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.

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 perceived humidity level in Río Colorado, 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 3% of 3% throughout.

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 Río Colorado experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 4.7 months, from October 17 to March 8, with average wind speeds of more than 10.7 miles per hour. The windiest month of the year in Río Colorado is December, with an average hourly wind speed of 11.8 miles per hour.

The calmer time of year lasts for 7.3 months, from March 8 to October 17. The calmest month of the year in Río Colorado is May, with an average hourly wind speed of 9.5 miles per hour.

The predominant average hourly wind direction in Río Colorado varies throughout the year.

The wind is most often from the north for 3.0 months, from January 1 to April 2 and for 1.9 weeks, from September 23 to October 6, with a peak percentage of 38% on February 20. The wind is most often from the west for 5.7 months, from April 2 to September 23 and for 2.8 months, from October 6 to December 31, with a peak percentage of 49% on June 17.

To characterize how pleasant the weather is in Río Colorado 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 Río Colorado for general outdoor tourist activities is from late October to late March, with a peak score in the first week of December.

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 Río Colorado for hot-weather activities is from early December to late February, with a peak score in the first week of January.

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.

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 Río Colorado typically lasts for 7.8 months (237 days), from around September 18 to around May 13, rarely starting before August 29 or after October 8, and rarely ending before April 17 or after June 5.

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 Río Colorado should appear around August 13, only rarely appearing before August 4 or after August 24.

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 experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.4 months, from November 3 to February 14, with an average daily incident shortwave energy per square meter above 7.2 kWh. The brightest month of the year in Río Colorado is December, with an average of 8.4 kWh.

The darker period of the year lasts for 3.7 months, from April 27 to August 18, with an average daily incident shortwave energy per square meter below 3.3 kWh. The darkest month of the year in Río Colorado is June, with an average of 2.0 kWh.

For the purposes of this report, the geographical coordinates of Río Colorado are -38.994 deg latitude, -64.093 deg longitude, and 266 ft elevation.

The topography within 2 miles of Río Colorado contains only modest variations in elevation, with a maximum elevation change of 174 feet and an average elevation above sea level of 291 feet. Within 10 miles also contains only modest variations in elevation (269 feet). Within 50 miles contains only modest variations in elevation (1,224 feet).

The area within 2 miles of Río Colorado is covered by shrubs (64%), grassland (16%), and trees (16%), within 10 miles by shrubs (86%), and within 50 miles by shrubs (75%).