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December Weather in Penco, Chile

Last updated: August 22, 2025

In December, the average temperature in Penco, Chile is a pleasant 17°C (62°F), with minimum lows of 8°C (46°F) and maximum highs reaching 32°C (90°F). With an average humidity of 67%, you can expect a relatively comfortable atmosphere. However, don't forget your umbrella, as precipitation amounts to 6 mm (0.2 in) over the course of just 1 day.

December Temperature in Penco

In December in Penco, the average temperature is 17°C (62°F). Maximum temperatures can reach up to 32°C (90°F), while minimum temperatures can dip as low as 8°C (46°F). This variation makes it essential to pack layers for your travels, ensuring you're comfortable whether the sun is shining or temperatures drop in the evening.

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

The chart illustrates December temperature patterns in Penco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Penco, December typically has an average temperature of 17°C (62°F), with highs reaching up to 32°C (90°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec646460565249484951545962
Data source: Temperature data for Penco 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 Penco

In Penco in December, the precipitation amount is 6 mm (0.2 in) over the course of 1 day.

December Precipitation Trends in Penco

The chart displays monthly precipitation patterns in Penco, 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 Penco, December typically receives around 6 mm (0.2 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec7719361071881041066541206
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Penco

In Penco in December, humidity is 67%. With an average temperature of 17°C (62°F), this humidity feels like a warm embrace, making travel enjoyable as long as you stay hydrated and take breaks in shaded areas.

December Average Humidity in Penco

This chart illustrates the average monthly humidity levels in Penco, 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 Penco is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec68%67%70%74%83%85%86%85%79%77%72%67%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Penco

In Penco 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 Penco, you can check here.

Maximum UV Index Levels in Penco for December

The chart shows the monthly maximum UV Index (UVI) for Penco 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 Penco typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141310753457101314
Data source: Penco 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 Penco Compares to Other Months

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

This table compares monthly weather conditions in Penco, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (65°F)6 mm (0.3 inches)68%extreme
February Weather18°C (64°F)7 mm (0.3 inches)67%extreme
March Weather16°C (61°F)19 mm (0.8 inches)70%very high
April Weather13°C (56°F)36 mm (1.4 inches)74%high
May Weather11°C (52°F)107 mm (4.2 inches)83%moderate
June Weather9°C (49°F)188 mm (7.4 inches)85%moderate
July Weather9°C (48°F)104 mm (4.1 inches)86%moderate
August Weather9°C (49°F)106 mm (4.2 inches)85%moderate
September Weather10°C (51°F)65 mm (2.6 inches)79%high
October Weather12°C (54°F)41 mm (1.6 inches)76%very high
November Weather15°C (59°F)20 mm (0.8 inches)72%extreme
December Weather17°C (62°F)6 mm (0.2 inches)67%extreme

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