December Weather in Rengo, Chile

Last updated: August 22, 2025

In Rengo, Chile, the average temperature in December is a pleasant 17°C (63°F), making it an inviting time to visit. During this month, temperatures can range from a chilly 5°C (41°F) to a warm 29°C (85°F). Expect a light precipitation amount of 9 mm (0.4 in) over the course of one day, coupled with an average humidity of 39%. Pack accordingly to enjoy all that this destination has to offer!

December Temperature in Rengo

In December in Rengo, the average temperature is 17°C (63°F). Maximums can reach 29°C (85°F), while minimums can drop as low as 5°C (41°F). This varied climate makes Rengo an ideal destination for travelers looking to experience a mix of warm days and cool evenings.

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

The chart illustrates December temperature patterns in Rengo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rengo, December typically has an average temperature of 17°C (63°F), with highs reaching up to 29°C (85°F) and lows dropping to around 5°C (41°F).

Data source: Temperature data for Rengo generated using information from the Copernicus Climate Change Service.

December Precipitation in Rengo

In Rengo in December, the precipitation amount is 9 mm (0.4 in) over the course of 1 day.

December Precipitation Trends in Rengo

The chart displays monthly precipitation patterns in Rengo, 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 Rengo, December typically receives around 9 mm (0.4 inches) of precipitation spread over approximately 1 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Rengo

In Rengo in December, humidity is 39%. With an average temperature of 17°C (63°F), this humidity feels like a comfortable and refreshing backdrop for traveling, where the air is crisp and invigorating, making outdoor exploration enjoyable and pleasant.

December Average Humidity in Rengo

This chart illustrates the average monthly humidity levels in Rengo, 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 Rengo is approximately 39%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rengo

In Rengo 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 Rengo, you can check here.

Maximum UV Index Levels in Rengo for December

The chart shows the monthly maximum UV Index (UVI) for Rengo 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 Rengo typically reaches 14, which falls under the extreme exposure category.

Data source: Rengo 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 Rengo Compares to Other Months

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

This table compares monthly weather conditions in Rengo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	18°C (65°F)	25 mm (1.0 inches)	40%	extreme
February Weather	18°C (64°F)	12 mm (0.5 inches)	41%	extreme
March Weather	16°C (61°F)	12 mm (0.5 inches)	46%	extreme
April Weather	12°C (54°F)	26 mm (1.0 inches)	54%	very high
May Weather	9°C (48°F)	73 mm (2.9 inches)	70%	moderate
June Weather	5°C (41°F)	179 mm (7.1 inches)	78%	moderate
July Weather	5°C (41°F)	97 mm (3.8 inches)	82%	moderate
August Weather	6°C (43°F)	99 mm (3.9 inches)	79%	high
September Weather	8°C (47°F)	59 mm (2.3 inches)	62%	very high
October Weather	11°C (52°F)	68 mm (2.7 inches)	64%	extreme
November Weather	14°C (58°F)	26 mm (1.0 inches)	53%	extreme
December Weather	17°C (63°F)	9 mm (0.4 inches)	39%	extreme