December Weather in Puerto Casma, Peru

Last updated: August 27, 2025

In December, the average temperature in Puerto Casma, Peru hovers around 19°C (66°F), offering a comfortable climate for exploration. Expect minimums of 16°C (61°F) and maximums reaching 22°C (72°F), making it pleasant for outdoor activities. However, don’t forget your umbrella; the region sees about 9 mm (0.4 in) of precipitation over 2 days. With an average humidity of 91%, it’s wise to stay hydrated as you enjoy your time in this charming locale!

December Temperature in Puerto Casma

In December in Puerto Casma, the average temperature is 19°C (66°F). Maximum can reach 22°C (72°F) and minimum can be as low as 16°C (61°F). This pleasant climate makes it an ideal time for travelers to explore and enjoy outdoor activities.

December Weather in Puerto Casma: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Puerto Casma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Puerto Casma, December typically has an average temperature of 19°C (66°F), with highs reaching up to 22°C (72°F) and lows dropping to around 16°C (61°F).

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

December Precipitation in Puerto Casma

In Puerto Casma in December, the precipitation amount is 9 mm (0.4 in) over the course of 2 days.

December Precipitation Trends in Puerto Casma

The chart displays monthly precipitation patterns in Puerto Casma, 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 Puerto Casma, December typically receives around 9 mm (0.4 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 Puerto Casma

In Puerto Casma in December humidity is 91%. With an average temperature of 19°C (66°F), this humidity feels like a heavy blanket, making travel uncomfortable and muggy, causing sweat to accumulate and sticking to clothes, which can dampen the joy of exploring.

December Average Humidity in Puerto Casma

This chart illustrates the average monthly humidity levels in Puerto Casma, 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 Puerto Casma is approximately 91%, 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 Puerto Casma

In Puerto Casma 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 Puerto Casma.

Maximum UV Index Levels in Puerto Casma for December

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

Data source: Puerto Casma 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 Puerto Casma Compares to Other Months

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

This table compares monthly weather conditions in Puerto Casma, 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 (69°F)	3 mm (0.1 inches)	91%	extreme
February Weather	22°C (72°F)	6 mm (0.2 inches)	89%	extreme
March Weather	22°C (72°F)	6 mm (0.2 inches)	89%	extreme
April Weather	20°C (68°F)	2 mm (0.1 inches)	88%	extreme
May Weather	18°C (65°F)	3 mm (0.1 inches)	84%	extreme
June Weather	18°C (64°F)	4 mm (0.2 inches)	73%	very high
July Weather	17°C (63°F)	6 mm (0.2 inches)	55%	very high
August Weather	16°C (61°F)	6 mm (0.2 inches)	53%	extreme
September Weather	16°C (60°F)	7 mm (0.3 inches)	62%	extreme
October Weather	16°C (61°F)	4 mm (0.2 inches)	82%	extreme
November Weather	17°C (62°F)	2 mm (0.1 inches)	89%	extreme
December Weather	19°C (66°F)	9 mm (0.4 inches)	91%	extreme