December Weather in Tacna, United States

Last updated: June 24, 2025

In Tacna, United States, the average temperature in December hovers around 14°C (58°F), with extremes ranging from a cool 2°C (36°F) to a warm 29°C (84°F). Expect about 14 mm (0.6 in) of precipitation spread over 2 days during this month, contributing to an average humidity level of 78%.

December Temperature in Tacna

In December, Tacna experiences an average temperature of 14°C (58°F). The maximum can reach 29°C (84°F), while the minimum can drop as low as 2°C (36°F). Overall, it's advisable to pack layers to accommodate the varying temperatures while exploring this destination.

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

The chart illustrates December temperature patterns in Tacna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tacna, December typically has an average temperature of 14°C (58°F), with highs reaching up to 29°C (84°F) and lows dropping to around 2°C (36°F).

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

December Precipitation in Tacna

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

December Precipitation Trends in Tacna

The chart displays monthly precipitation patterns in Tacna, 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 Tacna, 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.

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Millimeters (mm) Inches (in)

December Humidity in Tacna

In Tacna in December, humidity is 78%. With an average temperature of 14°C (58°F), this humidity feels like a damp embrace, making traveling a bit uncomfortable as the air clings to your skin, causing you to sweat more than usual while exploring.

December Average Humidity in Tacna

This chart illustrates the average monthly humidity levels in Tacna, 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 Tacna is approximately 78%, 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 Tacna

In Tacna in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Tacna for better planning.

Maximum UV Index Levels in Tacna for December

The chart shows the monthly maximum UV Index (UVI) for Tacna 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 Tacna typically reaches 4, which falls under the moderate exposure category.

Data source: Tacna 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 Tacna Compares to Other Months

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

This table compares monthly weather conditions in Tacna, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	14°C (58°F)	13 mm (0.5 inches)	73%	moderate
February Weather	16°C (61°F)	14 mm (0.6 inches)	76%	high
March Weather	20°C (68°F)	11 mm (0.4 inches)	65%	very high
April Weather	25°C (77°F)	1 mm (0.1 inches)	50%	very high
May Weather	28°C (82°F)	0 mm (0.0 inches)	33%	extreme
June Weather	33°C (91°F)	1 mm (0.0 inches)	28%	extreme
July Weather	36°C (97°F)	9 mm (0.3 inches)	28%	extreme
August Weather	36°C (97°F)	9 mm (0.4 inches)	33%	extreme
September Weather	32°C (90°F)	17 mm (0.7 inches)	50%	very high
October Weather	25°C (78°F)	12 mm (0.5 inches)	61%	very high
November Weather	20°C (68°F)	10 mm (0.4 inches)	70%	moderate
December Weather	14°C (58°F)	14 mm (0.6 inches)	78%	moderate