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December Weather in San Jacinto, Uruguay

Last updated: August 28, 2025

In San Jacinto, Uruguay during December, the average temperature is a pleasant 22°C (71°F), with a minimum dipping to 8°C (46°F) and a maximum soaring to 36°C (97°F). You'll also experience an average humidity of 65%, coupled with 60 mm (2.4 in) of precipitation over about 7 days.

December Temperature in San Jacinto

In December in San Jacinto, the average temperature is 22°C (71°F), with maximums reaching 36°C (97°F) and minimums dropping as low as 8°C (46°F). This diverse range of temperatures makes it an ideal time for travelers to enjoy a variety of outdoor activities while packing for both warm and cooler conditions.

December Weather in San Jacinto: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in San Jacinto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Jacinto, December typically has an average temperature of 22°C (71°F), with highs reaching up to 36°C (97°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec747269655753525457616771
Data source: Temperature data for San Jacinto generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in San Jacinto

In San Jacinto in December, the precipitation amount is 60 mm (2.4 in) over the course of 7 days.

December Precipitation Trends in San Jacinto

The chart displays monthly precipitation patterns in San Jacinto, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In San Jacinto, December typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec7493657798111989189896360
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Jacinto

In San Jacinto in December, humidity is 65%. With an average temperature of 22°C (71°F), this humidity feels like a warm embrace, making it a perfect time for leisurely strolls or exploring local attractions, though travelers should stay hydrated to fully enjoy the experience.

December Average Humidity in San Jacinto

This chart illustrates the average monthly humidity levels in San Jacinto, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in San Jacinto is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec63%69%73%79%83%80%72%72%76%71%68%65%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Jacinto

In San Jacinto in December, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in San Jacinto, you can check here.

Maximum UV Index Levels in San Jacinto for December

The chart shows the monthly maximum UV Index (UVI) for San Jacinto in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in San Jacinto typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311754468111314
Data source: San Jacinto December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in San Jacinto Compares to Other Months

Weather in San Jacinto varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Jacinto, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in San Jacinto, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)74 mm (2.9 inches)63%extreme
February Weather22°C (73°F)93 mm (3.7 inches)69%extreme
March Weather21°C (69°F)64 mm (2.5 inches)73%extreme
April Weather18°C (65°F)76 mm (3.0 inches)79%high
May Weather14°C (58°F)98 mm (3.9 inches)82%moderate
June Weather12°C (54°F)111 mm (4.4 inches)80%moderate
July Weather11°C (52°F)98 mm (3.8 inches)72%moderate
August Weather12°C (54°F)91 mm (3.6 inches)72%high
September Weather14°C (57°F)89 mm (3.5 inches)76%very high
October Weather16°C (61°F)88 mm (3.5 inches)71%extreme
November Weather19°C (67°F)63 mm (2.5 inches)68%extreme
December Weather22°C (71°F)60 mm (2.4 inches)65%extreme

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