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December Weather in San Javier, Chile

Last updated: August 22, 2025

In San Javier, Chile, the average temperature in December hovers around 20°C (68°F), with a comfortable range from a low of 7°C (45°F) to a warm high of 33°C (92°F). Expect very little rain, with an average precipitation of just 2 mm (0.1 in) over 0 days. The climate boasts a pleasant average humidity of 39%, making it an ideal time to enjoy the outdoors.

December Temperature in San Javier

In December in San Javier, 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 Javier: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in San Javier, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Javier, 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 Javier 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 Javier

In San Javier in December, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.

December Precipitation Trends in San Javier

The chart displays monthly precipitation patterns in San Javier, 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 Javier, December typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec14893294200851065534162
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Javier

In San Javier 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 Javier

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

In San Javier 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 Javier, you can check here.

Maximum UV Index Levels in San Javier for December

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

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

This table compares monthly weather conditions in San Javier, 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 (0.6 inches)40%extreme
February Weather20°C (69°F)8 mm (0.3 inches)41%extreme
March Weather18°C (65°F)9 mm (0.3 inches)46%extreme
April Weather14°C (58°F)32 mm (1.2 inches)54%high
May Weather11°C (52°F)94 mm (3.7 inches)70%moderate
June Weather9°C (49°F)200 mm (7.9 inches)78%moderate
July Weather8°C (48°F)85 mm (3.4 inches)82%moderate
August Weather9°C (49°F)106 mm (4.2 inches)79%moderate
September Weather11°C (52°F)55 mm (2.1 inches)62%very high
October Weather13°C (56°F)34 mm (1.3 inches)64%very high
November Weather17°C (63°F)16 mm (0.6 inches)53%extreme
December Weather20°C (68°F)2 mm (0.1 inches)39%extreme

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