January Weather in Casma, Peru

Last updated: August 27, 2025

In Casma, Peru, the average temperature in January hovers around 21°C (70°F), with a minimum of 17°C (64°F) and a maximum of 27°C (81°F). Expect a modest precipitation of 30 mm (1.2 in) spread over 8 days, and enjoy the lush ambiance brought by an average humidity of 91%.

January Temperature in Casma

In January in Casma, the average temperature is 21°C (70°F). The maximum can reach 27°C (81°F), while the minimum can drop as low as 17°C (64°F). This pleasant climate makes Casma an ideal destination for travelers seeking comfortable weather and outdoor activities.

January Weather in Casma: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Casma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Casma, January typically has an average temperature of 21°C (70°F), with highs reaching up to 27°C (81°F) and lows dropping to around 17°C (64°F).

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

January Precipitation in Casma

In Casma in January, the precipitation amount is 30 mm (1.2 in) over the course of 8 days.

January Precipitation Trends in Casma

The chart displays monthly precipitation patterns in Casma, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Casma, January typically receives around 30 mm (1.2 inches) of precipitation spread over approximately 8 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Casma

In Casma in January, humidity is 91%. With an average temperature of 21°C (70°F), this humidity feels like a warm, heavy blanket wrapped around you, making travel slightly uncomfortable as the air clings to your skin and every step requires a little more effort.

January Average Humidity in Casma

This chart illustrates the average monthly humidity levels in Casma, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Casma is approximately 91%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Casma

In Casma in January, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Casma, you can check here.

Maximum UV Index Levels in Casma for January

The chart shows the monthly maximum UV Index (UVI) for Casma in January, 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 January, the maximum UV index in Casma typically reaches 14, which falls under the extreme exposure category.

Data source: Casma January 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 January Weather in Casma Compares to Other Months

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

This table compares monthly weather conditions in Casma, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (70°F)	30 mm (1.2 inches)	91%	extreme
February Weather	22°C (72°F)	24 mm (1.0 inches)	89%	extreme
March Weather	22°C (72°F)	49 mm (1.9 inches)	89%	extreme
April Weather	21°C (70°F)	17 mm (0.7 inches)	88%	extreme
May Weather	20°C (68°F)	6 mm (0.2 inches)	84%	extreme
June Weather	19°C (67°F)	1 mm (0.0 inches)	73%	very high
July Weather	19°C (66°F)	0 mm (0.0 inches)	55%	very high
August Weather	18°C (65°F)	1 mm (0.0 inches)	53%	extreme
September Weather	18°C (64°F)	5 mm (0.2 inches)	62%	extreme
October Weather	18°C (65°F)	9 mm (0.3 inches)	82%	extreme
November Weather	19°C (66°F)	8 mm (0.3 inches)	89%	extreme
December Weather	20°C (68°F)	28 mm (1.1 inches)	91%	extreme