December Weather in Las Heras, Argentina

Last updated: August 22, 2025

In December, the average temperature in Las Heras, Argentina is a pleasant 18°C (65°F), making it an ideal time to explore the region. Stay prepared, as temperatures can range from a chilly 6°C (43°F) to a warm 35°C (95°F). Be ready for a bit of rain, too, with an average precipitation of 14 mm (0.6 in) over the course of 2 days, while humidity hovers around a comfortable 63%. Enjoy your visit!

December Temperature in Las Heras

In December in Las Heras, the average temperature is 18°C (65°F). Maximum temperatures can reach 35°C (95°F), while minimum temperatures can drop as low as 6°C (43°F). This variation makes it essential for travelers to pack accordingly, ensuring comfort for both warm and cool weather.

December Weather in Las Heras: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Las Heras, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Las Heras, December typically has an average temperature of 18°C (65°F), with highs reaching up to 35°C (95°F) and lows dropping to around 6°C (43°F).

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

December Precipitation in Las Heras

In Las Heras in December, the precipitation amount is 14 mm (0.6 in) over a period of 2 days.

December Precipitation Trends in Las Heras

The chart displays monthly precipitation patterns in Las Heras, 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 Las Heras, December typically receives around 14 mm (0.6 inches) of precipitation spread over approximately 2 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 Las Heras

In Las Heras in December, humidity is 63%. With an average temperature of 18°C (65°F), this humidity feels like a comfortable embrace, making for an enjoyable travel experience that allows for leisurely exploration without feeling overly sticky or oppressive.

December Average Humidity in Las Heras

This chart illustrates the average monthly humidity levels in Las Heras, 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 Las Heras is approximately 63%, 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 Las Heras

In Las Heras in December, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Las Heras.

Maximum UV Index Levels in Las Heras for December

The chart shows the monthly maximum UV Index (UVI) for Las Heras 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 Las Heras typically reaches 12, which falls under the extreme exposure category.

Data source: Las Heras 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 Las Heras Compares to Other Months

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

This table compares monthly weather conditions in Las Heras, 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)	6 mm (0.2 inches)	63%	extreme
February Weather	19°C (66°F)	15 mm (0.6 inches)	67%	extreme
March Weather	15°C (60°F)	32 mm (1.3 inches)	69%	very high
April Weather	12°C (53°F)	28 mm (1.1 inches)	76%	moderate
May Weather	8°C (46°F)	24 mm (0.9 inches)	81%	moderate
June Weather	4°C (39°F)	29 mm (1.2 inches)	85%	low
July Weather	4°C (39°F)	20 mm (0.8 inches)	86%	low
August Weather	6°C (44°F)	22 mm (0.9 inches)	85%	moderate
September Weather	9°C (48°F)	16 mm (0.6 inches)	77%	high
October Weather	12°C (53°F)	11 mm (0.4 inches)	71%	very high
November Weather	16°C (60°F)	11 mm (0.4 inches)	65%	extreme
December Weather	18°C (65°F)	14 mm (0.6 inches)	63%	extreme