December Weather in Santa Isabel Argentina

Daily high temperatures increase by 4°F, from 88°F to 92°F, rarely falling below 79°F or exceeding 100°F.

Daily low temperatures increase by 5°F, from 59°F to 63°F, rarely falling below 52°F or exceeding 70°F.

For reference, on January 7, the hottest day of the year, temperatures in Santa Isabel typically range from 64°F to 92°F, while on July 17, the coldest day of the year, they range from 37°F to 59°F.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on December. 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.

Quorn, Australia (7,439 miles away) and Peak Hill, Australia (7,168 miles) are the far-away foreign places with temperatures most similar to Santa Isabel (view comparison).

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The month of December in Santa Isabel experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 20% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 18% on December 28.

The clearest day of the month is December 28, with clear, mostly clear, or partly cloudy conditions 82% of the time.

For reference, on May 29, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 52%, while on December 28, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 82%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Santa Isabel, the chance of a wet day over the course of December is increasing, starting the month at 26% and ending it at 31%.

For reference, the year's highest daily chance of a wet day is 33% on January 8, and its lowest chance is 9% on July 5.

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 December in Santa Isabel is gradually increasing, starting the month at 2.1 inches, when it rarely exceeds 4.1 inches or falls below 0.7 inches, and ending the month at 2.5 inches, when it rarely exceeds 4.4 inches or falls below 1.0 inches.

Over the course of December in Santa Isabel, the length of the day is essentially constant. The shortest day of the month is December 1, with 14 hours, 27 minutes of daylight and the longest day is December 21, with 14 hours, 38 minutes of daylight.

The earliest sunrise of the month in Santa Isabel is 6:03 AM on December 6 and the latest sunrise is 10 minutes later at 6:13 AM on December 31.

The earliest sunset is 8:30 PM on December 1 and the latest sunset is 18 minutes later at 8:48 PM on December 31.

Daylight saving time is not observed in Santa Isabel during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 6:07 AM and sets 14 hours, 38 minutes later, at 8:45 PM, while on June 20, the shortest day of the year, it rises at 8:38 AM and sets 9 hours, 41 minutes later, at 6:20 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 December 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 Santa Isabel is essentially constant during December, remaining within 1% of 2% throughout.

For reference, on February 16, the muggiest day of the year, there are muggy conditions 4% of the time, while on May 2, 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 Santa Isabel is essentially constant during December, remaining within 0.2 miles per hour of 10.4 miles per hour throughout.

For reference, on November 3, the windiest day of the year, the daily average wind speed is 10.7 miles per hour, while on June 3, the calmest day of the year, the daily average wind speed is 8.1 miles per hour.

The hourly average wind direction in Santa Isabel throughout December is predominantly from the south, with a peak proportion of 53% on December 5.

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 Isabel typically lasts for 9.2 months (280 days), from around August 27 to around June 3, rarely starting before August 3 or after September 22, and rarely ending before May 10 or after June 25.

The month of December in Santa Isabel 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 Santa Isabel are rapidly increasing during December, increasing by 724°F, from 1,416°F to 2,140°F, over the course of the month.

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 Santa Isabel is essentially constant during December, remaining within 0.1 kWh of 8.6 kWh throughout.

The highest average daily incident shortwave solar energy during December is 8.7 kWh on December 27.

For the purposes of this report, the geographical coordinates of Santa Isabel are -36.227 deg latitude, -66.942 deg longitude, and 1,033 ft elevation.

The topography within 2 miles of Santa Isabel is essentially flat, with a maximum elevation change of 46 feet and an average elevation above sea level of 1,038 feet. Within 10 miles is essentially flat (105 feet). Within 50 miles contains only modest variations in elevation (1,490 feet).

The area within 2 miles of Santa Isabel is covered by shrubs (83%), within 10 miles by shrubs (89%), and within 50 miles by shrubs (65%) and grassland (17%).