December Weather in El Rosario, Colombia

Last updated: August 23, 2025

In El Rosario, Colombia during December, the average temperature hovers around 21°C (70°F). Expect a minimum of 15°C (60°F) and a maximum of 31°C (88°F). Be prepared for some rain, with an average precipitation of 464 mm (18.3 in) spread over 29 days and humidity levels sitting at a comfortable 85%.

December Temperature in El Rosario

In December in El Rosario, the average temperature is 21°C (70°F), with a maximum that can reach 31°C (88°F) and a minimum that can drop to as low as 15°C (60°F). It's a perfect time to explore the great outdoors and enjoy the pleasant weather.

December Weather in El Rosario: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in El Rosario, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In El Rosario, December typically has an average temperature of 21°C (70°F), with highs reaching up to 31°C (88°F) and lows dropping to around 15°C (60°F).

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

December Precipitation in El Rosario

In El Rosario in December, the total precipitation amount is 464 mm (18.3 in) spread over 29 days.

December Precipitation Trends in El Rosario

The chart displays monthly precipitation patterns in El Rosario, 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 El Rosario, December typically receives around 464 mm (18.3 inches) of precipitation spread over approximately 29 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 El Rosario

In El Rosario in December, humidity is 85%. With an average temperature of 21°C (70°F), this humidity feels like a warm, heavy blanket enveloping you, making travel feel slightly stifling and requiring frequent breaks to refresh in the shade or near water.

December Average Humidity in El Rosario

This chart illustrates the average monthly humidity levels in El Rosario, 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 El Rosario is approximately 85%, 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 El Rosario

In El Rosario in December, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in El Rosario.

Maximum UV Index Levels in El Rosario for December

The chart shows the monthly maximum UV Index (UVI) for El Rosario 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 El Rosario typically reaches 13, which falls under the extreme exposure category.

Data source: El Rosario 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 El Rosario Compares to Other Months

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

This table compares monthly weather conditions in El Rosario, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (71°F)	352 mm (13.8 inches)	72%	extreme
February Weather	21°C (71°F)	375 mm (14.8 inches)	66%	extreme
March Weather	21°C (71°F)	442 mm (17.4 inches)	74%	extreme
April Weather	22°C (71°F)	489 mm (19.3 inches)	83%	extreme
May Weather	22°C (71°F)	501 mm (19.7 inches)	93%	extreme
June Weather	22°C (72°F)	365 mm (14.4 inches)	93%	extreme
July Weather	23°C (74°F)	190 mm (7.5 inches)	84%	extreme
August Weather	23°C (74°F)	162 mm (6.4 inches)	61%	extreme
September Weather	23°C (73°F)	237 mm (9.3 inches)	53%	extreme
October Weather	22°C (71°F)	420 mm (16.5 inches)	67%	extreme
November Weather	21°C (70°F)	439 mm (17.3 inches)	78%	extreme
December Weather	21°C (70°F)	464 mm (18.3 inches)	85%	extreme