Summer Weather in Tandil Argentina

Daily high temperatures are around 79°F, rarely falling below 67°F or exceeding 90°F. The highest daily average high temperature is 82°F on January 8.

Daily low temperatures are around 55°F, rarely falling below 44°F or exceeding 65°F. The highest daily average low temperature is 57°F on January 15.

For reference, on January 7, the hottest day of the year, temperatures in Tandil typically range from 57°F to 82°F, while on July 18, the coldest day of the year, they range from 36°F to 53°F.

The figure below shows you a compact characterization of the hourly average summer temperatures. 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.

Canberra, Australia (7,111 miles away) is the far-away foreign place with temperatures most similar to Tandil (view comparison).

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The summer in Tandil experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 31% throughout the season. The lowest chance of overcast or mostly cloudy conditions is 28% on January 21.

The clearest day of the summer is January 21, with clear, mostly clear, or partly cloudy conditions 72% of the time.

For reference, on June 26, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 58%, while on January 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 72%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Tandil, the chance of a wet day over the course of the summer is essentially constant, remaining around 33% throughout.

For reference, the year's highest daily chance of a wet day is 36% on January 29, and its lowest chance is 12% on June 18.

Rainfall

To show variation within the season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during the summer in Tandil is increasing, starting the season at 3.1 inches, when it rarely exceeds 5.2 inches or falls below 1.3 inches, and ending the season at 3.9 inches, when it rarely exceeds 6.4 inches or falls below 1.6 inches.

The highest average 31-day accumulation is 3.9 inches on February 8. The lowest average 31-day accumulation is 3.1 inches on December 8.

Over the course of the summer in Tandil, the length of the day is rapidly decreasing. From the start to the end of the season, the length of the day decreases by 1 hour, 37 minutes, implying an average daily decrease of 1 minute, 5 seconds, and weekly decrease of 7 minutes, 38 seconds.

The shortest day of the summer is February 28, with 12 hours, 56 minutes of daylight and the longest day is December 21, with 14 hours, 44 minutes of daylight.

The earliest sunrise of the summer in Tandil is 5:29 AM on December 7 and the latest sunrise is 1 hour, 12 minutes later at 6:40 AM on February 28.

The latest sunset is 8:20 PM on January 4 and the earliest sunset is 44 minutes earlier at 7:36 PM on February 28.

Daylight saving time is not observed in Tandil during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:32 AM and sets 14 hours, 44 minutes later, at 8:17 PM, while on June 20, the shortest day of the year, it rises at 8:10 AM and sets 9 hours, 35 minutes later, at 5:45 PM.

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.

The figure below presents a compact representation of key lunar data for the summer of 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. 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.

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 Tandil is rapidly increasing during the summer, rising from 2% to 13% over the course of the season.

The highest chance of a muggy day during the summer is 14% on February 9.

For reference, on February 9, the muggiest day of the year, there are muggy conditions 14% of the time, while on June 17, the least muggy day of the year, there are muggy conditions 0% of the time.

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 Tandil is gradually decreasing during the summer, decreasing from 10.4 miles per hour to 9.7 miles per hour over the course of the season.

For reference, on December 16, the windiest day of the year, the daily average wind speed is 10.5 miles per hour, while on May 6, the calmest day of the year, the daily average wind speed is 9.3 miles per hour.

The highest daily average wind speed during the summer is 10.5 miles per hour on December 16.

The hourly average wind direction in Tandil throughout the summer is predominantly from the north, with a peak proportion of 39% on January 24.

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 Tandil typically lasts for 7.4 months (223 days), from around September 29 to around May 10, rarely starting before September 2 or after November 5, and rarely ending before April 15 or after June 5.

The summer in Tandil is reliably fully 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 Tandil are very rapidly increasing during the summer, increasing by 1,553°F, from 803°F to 2,356°F, over the course of the season.

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 Tandil is decreasing during the summer, falling by 1.5 kWh, from 7.7 kWh to 6.2 kWh, over the course of the season.

The highest average daily incident shortwave solar energy during the summer is 8.0 kWh on December 29.

For the purposes of this report, the geographical coordinates of Tandil are -37.322 deg latitude, -59.133 deg longitude, and 630 ft elevation.

The topography within 2 miles of Tandil contains only modest variations in elevation, with a maximum elevation change of 427 feet and an average elevation above sea level of 664 feet. Within 10 miles contains only modest variations in elevation (1,158 feet). Within 50 miles also contains very significant variations in elevation (1,562 feet).

The area within 2 miles of Tandil is covered by shrubs (58%), trees (18%), and grassland (14%), within 10 miles by cropland (48%) and shrubs (24%), and within 50 miles by cropland (55%) and shrubs (18%).