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December Weather in Los Chiles, Costa Rica

Last updated: August 23, 2025

In Los Chiles, Costa Rica, the average temperature in December hovers around 25°C (76°F), creating a pleasant atmosphere. Temperatures can dip to a minimum of 19°C (66°F) and reach a maximum of 30°C (87°F). However, be prepared for moisture, as the area experiences about 176 mm (6.9 in) of precipitation over 28 days, accompanied by an average humidity of 74%.

December Temperature in Los Chiles

In December in Los Chiles, the average temperature is 25°C (76°F). Maximums can reach 30°C (87°F), while minimums can dip as low as 19°C (66°F). It's an ideal time for travelers seeking warm weather and comfortable conditions.

December Weather in Los Chiles: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Los Chiles, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Los Chiles, December typically has an average temperature of 25°C (76°F), with highs reaching up to 30°C (87°F) and lows dropping to around 19°C (66°F).
JanFebMarAprMayJunJulAugSepOctNovDec767677797979787878787776
Data source: Temperature data for Los Chiles 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 Los Chiles

In Los Chiles in December, the precipitation amount is 176 mm (6.9 in) during a period of 28 days.

December Precipitation Trends in Los Chiles

The chart displays monthly precipitation patterns in Los Chiles, 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 Los Chiles, December typically receives around 176 mm (6.9 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec120758470315324252277296353241176
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Los Chiles

In Los Chiles in December, humidity is 74%. With an average temperature of 25°C (76°F), this humidity feels like you're enveloped in a warm, steamy embrace, making outdoor adventures quite challenging and ensuring that plenty of water and shade are essential for a comfortable experience.

December Average Humidity in Los Chiles

This chart illustrates the average monthly humidity levels in Los Chiles, 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 Los Chiles is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%70%68%69%70%81%88%85%84%82%81%74%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Los Chiles

In Los Chiles in December, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Los Chiles.

Maximum UV Index Levels in Los Chiles for December

The chart shows the monthly maximum UV Index (UVI) for Los Chiles 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 Los Chiles typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111214141413141313131110
Data source: Los Chiles 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 Los Chiles Compares to Other Months

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

This table compares monthly weather conditions in Los Chiles, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)120 mm (4.7 inches)71%extreme
February Weather25°C (77°F)75 mm (3.0 inches)70%extreme
March Weather25°C (78°F)84 mm (3.3 inches)68%extreme
April Weather26°C (80°F)70 mm (2.7 inches)69%extreme
May Weather26°C (79°F)315 mm (12.4 inches)70%extreme
June Weather26°C (79°F)323 mm (12.7 inches)81%extreme
July Weather26°C (78°F)252 mm (9.9 inches)88%extreme
August Weather26°C (78°F)277 mm (10.9 inches)85%extreme
September Weather26°C (79°F)296 mm (11.7 inches)84%extreme
October Weather25°C (78°F)353 mm (13.9 inches)82%extreme
November Weather25°C (77°F)241 mm (9.5 inches)81%extreme
December Weather25°C (76°F)176 mm (6.9 inches)74%very high

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