Winter Weather in San Javier Argentina

Daily high temperatures increase by 4°F, from 71°F to 75°F, rarely falling below 56°F or exceeding 89°F. The lowest daily average high temperature is 70°F on July 8.

Daily low temperatures are around 53°F, rarely falling below 37°F or exceeding 67°F. The lowest daily average low temperature is 51°F on July 20.

For reference, on January 9, the hottest day of the year, temperatures in San Javier typically range from 69°F to 90°F, while on July 20, the coldest day of the year, they range from 51°F to 70°F.

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

Al Mindak, Saudi Arabia (7,243 miles away) and Dhalie, Yemen (7,259 miles) are the far-away foreign places with temperatures most similar to San Javier (view comparison).

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The winter in San Javier experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 41% to 35%. The highest chance of overcast or mostly cloudy conditions is 45% on June 21. The lowest chance of overcast or mostly cloudy conditions is 35% on August 31.

The clearest day of the winter is August 31, with clear, mostly clear, or partly cloudy conditions 65% of the time.

For reference, on June 21, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 45%, while on March 25, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 68%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In San Javier, the chance of a wet day over the course of the winter is essentially constant, remaining around 31% throughout.

For reference, the year's highest daily chance of a wet day is 46% on February 9, and its lowest chance is 26% on July 28.

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 winter in San Javier is decreasing, starting the season at 5.2 inches, when it rarely exceeds 9.3 inches or falls below 2.0 inches, and ending the season at 4.7 inches, when it rarely exceeds 8.3 inches or falls below 1.6 inches.

The lowest average 31-day accumulation is 3.9 inches on August 11.

Over the course of the winter in San Javier, the length of the day is rapidly increasing. From the start to the end of the season, the length of the day increases by 1 hour, 3 minutes, implying an average daily increase of 42 seconds, and weekly increase of 4 minutes, 52 seconds.

The shortest day of the winter is June 20, with 10 hours, 22 minutes of daylight and the longest day is August 31, with 11 hours, 32 minutes of daylight.

The latest sunrise of the winter in San Javier is 7:32 AM on July 1 and the earliest sunrise is 38 minutes earlier at 6:54 AM on August 31.

The earliest sunset is 5:52 PM on June 9 and the latest sunset is 35 minutes later at 6:26 PM on August 31.

Daylight saving time is not observed in San Javier during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:41 AM and sets 13 hours, 55 minutes later, at 7:36 PM, while on June 20, the shortest day of the year, it rises at 7:31 AM and sets 10 hours, 22 minutes later, at 5:53 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 winter 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 San Javier is essentially constant during the winter, remaining within 3% of 8% throughout.

The lowest chance of a muggy day during the winter is 5% on July 21.

For reference, on February 8, the muggiest day of the year, there are muggy conditions 79% of the time, while on July 21, the least muggy day of the year, there are muggy conditions 5% 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 San Javier is essentially constant during the winter, remaining within 0.1 miles per hour of 3.3 miles per hour throughout.

For reference, on August 26, the windiest day of the year, the daily average wind speed is 3.4 miles per hour, while on March 3, the calmest day of the year, the daily average wind speed is 2.7 miles per hour.

The highest daily average wind speed during the winter is 3.4 miles per hour on August 26.

The wind direction in San Javier during the winter is predominantly out of the north from June 1 to July 27 and the east from July 27 to August 31.

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).

While it does not do so every year, freezing temperatures are seen in San Javier over some winters. The day least likely to be in the growing season is July 8, with a 64% chance.

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 San Javier are very rapidly decreasing during the winter, decreasing by 6,057°F, from 6,800°F to 744°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 San Javier is increasing during the winter, rising by 1.3 kWh, from 3.4 kWh to 4.6 kWh, over the course of the season.

The lowest average daily incident shortwave solar energy during the winter is 3.1 kWh on June 22.

For the purposes of this report, the geographical coordinates of San Javier are -27.874 deg latitude, -55.135 deg longitude, and 367 ft elevation.

The topography within 2 miles of San Javier contains only modest variations in elevation, with a maximum elevation change of 400 feet and an average elevation above sea level of 321 feet. Within 10 miles contains only modest variations in elevation (843 feet). Within 50 miles also contains very significant variations in elevation (1,427 feet).

The area within 2 miles of San Javier is covered by shrubs (32%), water (28%), trees (21%), and cropland (11%), within 10 miles by trees (35%) and shrubs (26%), and within 50 miles by trees (41%) and shrubs (23%).