Climate and Average Weather Year Round in Santa Rosa de Tastil Argentina

In Santa Rosa de Tastil, the wet season is cool and partly cloudy and the dry season is cold and mostly clear. Over the course of the year, the temperature typically varies from 21°F to 63°F and is rarely below 13°F or above 70°F.

Based on the tourism score, the best time of year to visit Santa Rosa de Tastil for warm-weather activities is from early November to mid January.

The warm season lasts for 4.9 months, from October 17 to March 13, with an average daily high temperature above 60°F. The hottest month of the year in Santa Rosa de Tastil is January, with an average high of 63°F and low of 41°F.

The cold season lasts for 2.8 months, from May 12 to August 6, with an average daily high temperature below 48°F. The coldest month of the year in Santa Rosa de Tastil is July, with an average low of 22°F and high of 46°F.

In Santa Rosa de Tastil, 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 Santa Rosa de Tastil begins around March 12 and lasts for 9.0 months, ending around December 12.

The clearest month of the year in Santa Rosa de Tastil is August, during which on average the sky is clear, mostly clear, or partly cloudy 84% of the time.

The cloudier part of the year begins around December 12 and lasts for 3.0 months, ending around March 12.

The cloudiest month of the year in Santa Rosa de Tastil is January, during which on average the sky is overcast or mostly cloudy 41% 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 Santa Rosa de Tastil varies very significantly throughout the year.

The wetter season lasts 4.7 months, from November 11 to April 2, with a greater than 28% chance of a given day being a wet day. The month with the most wet days in Santa Rosa de Tastil is January, with an average of 16.2 days with at least 0.04 inches of precipitation.

The drier season lasts 7.3 months, from April 2 to November 11. The month with the fewest wet days in Santa Rosa de Tastil is June, 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. Based on this categorization, the most common form of precipitation in Santa Rosa de Tastil changes throughout the year.

Rain alone is the most common for 8.8 months, from August 29 to May 24. The month with the most days of rain alone in Santa Rosa de Tastil is January, with an average of 16.1 days.

Snow alone is the most common for 3.2 months, from May 24 to August 29. The month with the most days of snow alone in Santa Rosa de Tastil is July, with an average of 0.6 days.

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. Santa Rosa de Tastil experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 7.0 months, from October 4 to May 2, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Santa Rosa de Tastil is January, with an average rainfall of 6.3 inches.

The rainless period of the year lasts for 5.0 months, from May 2 to October 4. The month with the least rain in Santa Rosa de Tastil is July, with an average rainfall of 0.0 inches.

The length of the day in Santa Rosa de Tastil varies over the course of the year. In 2024, the shortest day is June 20, with 10 hours, 37 minutes of daylight; the longest day is December 21, with 13 hours, 39 minutes of daylight.

The earliest sunrise is at 6:26 AM on November 29, and the latest sunrise is 1 hour, 42 minutes later at 8:08 AM on July 3. The earliest sunset is at 6:42 PM on June 7, and the latest sunset is 1 hour, 35 minutes later at 8:17 PM on January 13.

Daylight saving time (DST) is not observed in Santa Rosa de Tastil 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 Santa Rosa de Tastil, 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, remaining a virtually constant 0% 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 Santa Rosa de Tastil experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 4.9 months, from May 9 to October 5, with average wind speeds of more than 7.1 miles per hour. The windiest month of the year in Santa Rosa de Tastil is July, with an average hourly wind speed of 9.7 miles per hour.

The calmer time of year lasts for 7.1 months, from October 5 to May 9. The calmest month of the year in Santa Rosa de Tastil is March, with an average hourly wind speed of 4.5 miles per hour.

The predominant average hourly wind direction in Santa Rosa de Tastil varies throughout the year.

The wind is most often from the west for 9.2 months, from March 9 to December 14, with a peak percentage of 89% on June 25. The wind is most often from the east for 2.8 months, from December 14 to March 9, with a peak percentage of 43% on January 1.

To characterize how pleasant the weather is in Santa Rosa de Tastil 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 Santa Rosa de Tastil for general outdoor tourist activities is from early November to mid January, with a peak score in the second 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 Santa Rosa de Tastil for hot-weather activities is from early December to early January, with a peak score in the third week of December.

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 Santa Rosa de Tastil typically lasts for 2.6 months (77 days), from around December 17 to around March 4, rarely starting before November 16, or ending after April 8.

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 Santa Rosa de Tastil should appear around October 15, only rarely appearing before October 2 or after October 30.

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 significant seasonal variation over the course of the year.

The brighter period of the year lasts for 3.0 months, from October 6 to January 7, with an average daily incident shortwave energy per square meter above 8.1 kWh. The brightest month of the year in Santa Rosa de Tastil is November, with an average of 8.9 kWh.

The darker period of the year lasts for 2.9 months, from May 4 to August 2, with an average daily incident shortwave energy per square meter below 5.7 kWh. The darkest month of the year in Santa Rosa de Tastil is June, with an average of 4.9 kWh.

For the purposes of this report, the geographical coordinates of Santa Rosa de Tastil are -24.452 deg latitude, -65.975 deg longitude, and 10,564 ft elevation.

The topography within 2 miles of Santa Rosa de Tastil contains large variations in elevation, with a maximum elevation change of 2,169 feet and an average elevation above sea level of 10,782 feet. Within 10 miles contains large variations in elevation (9,652 feet). Within 50 miles also contains extreme variations in elevation (17,900 feet).

The area within 2 miles of Santa Rosa de Tastil is covered by sparse vegetation (46%), grassland (20%), trees (17%), and bare soil (13%), within 10 miles by sparse vegetation (42%) and bare soil (24%), and within 50 miles by bare soil (34%) and sparse vegetation (24%).