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December Weather in San Clemente, Chile

Last updated: August 22, 2025

In San Clemente, Chile, the average temperature in December is a pleasant 20°C (68°F). Expect a range of temperatures, with a minimum of 7°C (45°F) and a maximum reaching up to 33°C (92°F). Precipitation is minimal, with just 3 mm (0.1 in) recorded over 0 days. The atmosphere feels comfortably dry, with an average humidity of 39%. Enjoy the perfect weather for exploration!

December Temperature in San Clemente

In December in San Clemente, the average temperature is 20°C (68°F). The maximum can reach 33°C (92°F) and the minimum can be as low as 7°C (45°F). This pleasant climate makes it an ideal time for travelers to explore the outdoor attractions and enjoy various activities.

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

The chart illustrates December temperature patterns in San Clemente, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Clemente, December typically has an average temperature of 20°C (68°F), with highs reaching up to 33°C (92°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec706964585248474952566368
Data source: Temperature data for San Clemente 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 Clemente

In San Clemente in December, the precipitation amount is 3 mm (0.1 in) during a total of 0 days.

December Precipitation Trends in San Clemente

The chart displays monthly precipitation patterns in San Clemente, 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 Clemente, December typically receives around 3 mm (0.1 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec14101134902111021236944193
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Clemente

In San Clemente in December, humidity is 39%. With an average temperature of 20°C (68°F), this humidity feels like a refreshing breeze, making it a pleasant time for exploring outdoor attractions and enjoying leisurely walks.

December Average Humidity in San Clemente

This chart illustrates the average monthly humidity levels in San Clemente, 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 Clemente is approximately 39%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec40%41%46%54%70%78%82%79%62%64%53%39%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Clemente

In San Clemente 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 Clemente, you can check here.

Maximum UV Index Levels in San Clemente for December

The chart shows the monthly maximum UV Index (UVI) for San Clemente 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 Clemente typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311753458101314
Data source: San Clemente 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 Clemente Compares to Other Months

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

This table compares monthly weather conditions in San Clemente, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (70°F)14 mm (0.5 inches)40%extreme
February Weather21°C (69°F)10 mm (0.4 inches)41%extreme
March Weather18°C (65°F)11 mm (0.4 inches)46%extreme
April Weather14°C (58°F)34 mm (1.4 inches)54%high
May Weather11°C (52°F)90 mm (3.5 inches)70%moderate
June Weather9°C (48°F)211 mm (8.3 inches)78%moderate
July Weather8°C (47°F)102 mm (4.0 inches)82%moderate
August Weather9°C (49°F)123 mm (4.8 inches)79%moderate
September Weather11°C (53°F)69 mm (2.7 inches)62%very high
October Weather13°C (57°F)44 mm (1.7 inches)64%very high
November Weather17°C (63°F)19 mm (0.7 inches)53%extreme
December Weather20°C (68°F)3 mm (0.1 inches)39%extreme

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