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December Weather in San Ramon, Uruguay

Last updated: August 28, 2025

In December, the average temperature in San Ramon, Uruguay hovers around 22°C (72°F). Daily fluctuations can bring a minimum of 8°C (46°F) to a sweltering maximum of 36°C (97°F). Expect 66 mm (2.6 in) of precipitation spread over 7 days, contributing to an average humidity of 65%. Perfect for enjoying the season while staying prepared!

December Temperature in San Ramon

In December in San Ramon, the average temperature is 22°C (72°F). Maximums can reach 36°C (97°F) and minimums can be as low as 8°C (46°F). It's a great time to visit for those who enjoy mild weather with occasional warm days.

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

The chart illustrates December temperature patterns in San Ramon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Ramon, December typically has an average temperature of 22°C (72°F), with highs reaching up to 36°C (97°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec747269655753525457616772
Data source: Temperature data for San Ramon 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 Ramon

In San Ramon in December, the precipitation amount is 66 mm (2.6 in) over a period of 7 days.

December Precipitation Trends in San Ramon

The chart displays monthly precipitation patterns in San Ramon, 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 Ramon, December typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec771017781104120959097966866
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Ramon

In San Ramon in December, humidity is 65%. With an average temperature of 22°C (72°F), this humidity feels like a warm, tropical embrace that can make outdoor activities quite sticky, yet still enjoyable if you stay hydrated and take breaks in the shade.

December Average Humidity in San Ramon

This chart illustrates the average monthly humidity levels in San Ramon, 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 Ramon 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 Ramon

In San Ramon 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 Ramon, you can check here.

Maximum UV Index Levels in San Ramon for December

The chart shows the monthly maximum UV Index (UVI) for San Ramon 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 Ramon typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311754468111314
Data source: San Ramon 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 Ramon Compares to Other Months

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

This table compares monthly weather conditions in San Ramon, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)77 mm (3.0 inches)63%extreme
February Weather22°C (73°F)101 mm (4.0 inches)69%extreme
March Weather21°C (69°F)77 mm (3.0 inches)73%extreme
April Weather18°C (65°F)81 mm (3.2 inches)79%high
May Weather14°C (58°F)104 mm (4.1 inches)82%moderate
June Weather12°C (54°F)120 mm (4.7 inches)80%moderate
July Weather11°C (52°F)95 mm (3.8 inches)72%moderate
August Weather12°C (54°F)90 mm (3.5 inches)72%high
September Weather14°C (58°F)97 mm (3.8 inches)76%very high
October Weather16°C (61°F)96 mm (3.8 inches)71%extreme
November Weather19°C (67°F)68 mm (2.7 inches)68%extreme
December Weather22°C (72°F)66 mm (2.6 inches)65%extreme

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