December Weather in Monteros, Argentina

Last updated: August 22, 2025

In December, the average temperature in Monteros, Argentina reaches a comfortable 24°C (75°F). However, prepare for a range of temperatures, with lows dropping to 13°C (56°F) and highs peaking at 37°C (99°F). This month, expect 231 mm (9.1 in) of precipitation spread over 23 days, contributing to an average humidity of 74%. Make sure to pack accordingly!

December Temperature in Monteros

In December, in Monteros, the average temperature is 24°C (75°F). Maximums can reach 37°C (99°F) and minimums can be as low as 13°C (56°F). This variety in temperatures makes Monteros an excellent destination for travelers seeking both warm days and cooler evenings.

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

The chart illustrates December temperature patterns in Monteros, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Monteros, December typically has an average temperature of 24°C (75°F), with highs reaching up to 37°C (99°F) and lows dropping to around 13°C (56°F).

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

December Precipitation in Monteros

In Monteros in December, the total precipitation amount reaches 231 mm (9.1 in) over the course of 23 days.

December Precipitation Trends in Monteros

The chart displays monthly precipitation patterns in Monteros, 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 Monteros, December typically receives around 231 mm (9.1 inches) of precipitation spread over approximately 23 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Monteros

In Monteros in December, humidity is 74%. With an average temperature of 24°C (75°F), this humidity feels like a warm blanket wrapping around you, making outdoor exploration both sticky and exhilarating, as the heat clings to your skin while inviting you to seek out refreshing breezes or cool shade.

December Average Humidity in Monteros

This chart illustrates the average monthly humidity levels in Monteros, 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 Monteros 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 Monteros

In Monteros in December, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Monteros.

Maximum UV Index Levels in Monteros for December

The chart shows the monthly maximum UV Index (UVI) for Monteros 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 Monteros typically reaches 15, which falls under the extreme exposure category.

Data source: Monteros 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 Monteros Compares to Other Months

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

This table compares monthly weather conditions in Monteros, 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 (76°F)	265 mm (10.4 inches)	79%	extreme
February Weather	23°C (74°F)	308 mm (12.1 inches)	81%	extreme
March Weather	22°C (71°F)	215 mm (8.5 inches)	83%	extreme
April Weather	19°C (67°F)	191 mm (7.5 inches)	85%	very high
May Weather	15°C (59°F)	129 mm (5.1 inches)	75%	high
June Weather	11°C (53°F)	53 mm (2.1 inches)	62%	moderate
July Weather	11°C (52°F)	35 mm (1.4 inches)	53%	high
August Weather	13°C (56°F)	32 mm (1.3 inches)	44%	very high
September Weather	17°C (63°F)	58 mm (2.3 inches)	58%	very high
October Weather	20°C (68°F)	119 mm (4.7 inches)	54%	extreme
November Weather	22°C (73°F)	163 mm (6.4 inches)	66%	extreme
December Weather	24°C (75°F)	231 mm (9.1 inches)	74%	extreme