nomadseason

December Weather in Chaiten, Chile

Last updated: August 22, 2025

In December, the average temperature in Chaiten, Chile hovers around 12°C (55°F). While the minimum dips to 4°C (39°F), it can rise to a comfortable 26°C (79°F) on warmer days. Expect precipitation to total 318 mm (12.5 in) over approximately 15 days. With an average humidity level of 84%, be prepared for a wet and muggy atmosphere.

December Temperature in Chaiten

In December in Chaiten, the average temperature is 12°C (55°F). The maximum can reach 26°C (79°F), and the minimum can be as low as 4°C (39°F). This time of year offers a pleasant range of temperatures, making it an ideal destination for travelers seeking a comfortable climate.

December Weather in Chaiten: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Chaiten, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chaiten, December typically has an average temperature of 12°C (55°F), with highs reaching up to 26°C (79°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec565754514743424344475154
Data source: Temperature data for Chaiten generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Chaiten

In Chaiten in December, the total precipitation amount is 318 mm (12.5 in), spread over a duration of 15 days.

December Precipitation Trends in Chaiten

The chart displays monthly precipitation patterns in Chaiten, 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 Chaiten, December typically receives around 318 mm (12.5 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec251187306428572643468530383429381318
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Chaiten

In Chaiten in December, humidity is 84%. With an average temperature of 12°C (55°F), this humidity feels like a thick blanket wrapping around you, making it a challenge for traveling as you might feel sticky and uncomfortable while exploring the sights.

December Average Humidity in Chaiten

This chart illustrates the average monthly humidity levels in Chaiten, 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 Chaiten is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%85%82%87%87%86%87%87%86%84%82%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Chaiten

In Chaiten in December, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Chaiten.

Maximum UV Index Levels in Chaiten for December

The chart shows the monthly maximum UV Index (UVI) for Chaiten 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 Chaiten typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1312963234681313
Data source: Chaiten 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 Chaiten Compares to Other Months

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

This table compares monthly weather conditions in Chaiten, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (56°F)251 mm (9.9 inches)83%extreme
February Weather14°C (58°F)187 mm (7.4 inches)85%extreme
March Weather12°C (54°F)306 mm (12.1 inches)82%very high
April Weather10°C (51°F)428 mm (16.8 inches)87%high
May Weather8°C (47°F)572 mm (22.5 inches)87%moderate
June Weather6°C (43°F)643 mm (25.3 inches)86%low
July Weather5°C (42°F)468 mm (18.4 inches)87%moderate
August Weather6°C (43°F)530 mm (20.9 inches)87%moderate
September Weather7°C (45°F)383 mm (15.1 inches)86%high
October Weather8°C (47°F)429 mm (16.9 inches)84%very high
November Weather11°C (51°F)381 mm (15.0 inches)82%extreme
December Weather12°C (55°F)318 mm (12.5 inches)84%extreme

Compare Chaiten's Climate with Cities Worldwide