December Weather in Belen, Argentina

Last updated: August 22, 2025

In December, the average temperature in Belen, Argentina is a pleasant 23°C (73°F). However, be prepared for a range of temperatures, with lows reaching 11°C (52°F) and highs soaring up to 36°C (97°F). Expect a precipitation of about 53 mm (2.1 in) spread over 8 days, alongside an average humidity of 74%, making for a potentially humid experience!

December Temperature in Belen

In December in Belen, the average temperature is 23°C (73°F). Maximum temperatures can reach 36°C (97°F), while the minimum can be as low as 11°C (52°F). This temperature range makes it a great time for travelers to enjoy outdoor activities while also being prepared for cooler evenings.

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

The chart illustrates December temperature patterns in Belen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Belen, December typically has an average temperature of 23°C (73°F), with highs reaching up to 36°C (97°F) and lows dropping to around 11°C (52°F).

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

December Precipitation in Belen

In Belen in December, the total precipitation amount is 53 mm (2.1 in) over the course of 8 days.

December Precipitation Trends in Belen

The chart displays monthly precipitation patterns in Belen, 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 Belen, December typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 8 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 Belen

In Belen in December humidity is 74%. With an average temperature of 23°C (73°F), this humidity feels like walking through a warm, enveloping fog, making outdoor activities more strenuous and requiring frequent breaks for hydration.

December Average Humidity in Belen

This chart illustrates the average monthly humidity levels in Belen, 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 Belen is approximately 74%, 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 Belen

In Belen in December, the maximum UV index reaches an alarming 17, which falls under the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to stay protected. For more details on the hourly UV index in Belen, you can check Hourly UV Index in Belen.

Maximum UV Index Levels in Belen for December

The chart shows the monthly maximum UV Index (UVI) for Belen 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 Belen typically reaches 17, which falls under the extreme exposure category.

Data source: Belen 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 Belen Compares to Other Months

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

This table compares monthly weather conditions in Belen, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (75°F)	61 mm (2.4 inches)	79%	extreme
February Weather	22°C (72°F)	62 mm (2.4 inches)	81%	extreme
March Weather	20°C (69°F)	65 mm (2.5 inches)	83%	extreme
April Weather	18°C (64°F)	39 mm (1.5 inches)	85%	extreme
May Weather	14°C (58°F)	26 mm (1.0 inches)	75%	very high
June Weather	11°C (53°F)	15 mm (0.6 inches)	62%	high
July Weather	11°C (53°F)	8 mm (0.3 inches)	53%	high
August Weather	13°C (56°F)	6 mm (0.2 inches)	44%	very high
September Weather	16°C (61°F)	17 mm (0.7 inches)	58%	extreme
October Weather	19°C (67°F)	20 mm (0.8 inches)	54%	extreme
November Weather	22°C (71°F)	33 mm (1.3 inches)	66%	extreme
December Weather	23°C (73°F)	53 mm (2.1 inches)	74%	extreme