October Weather in Casma, Peru

Last updated: August 27, 2025

In October, the average temperature in Casma, Peru is a comfortable 18°C (65°F). Expect a pleasant range with minimums around 15°C (59°F) and maximums peaking at 23°C (74°F). However, don't forget your umbrella, as 9 mm (0.3 in) of precipitation can be expected over the course of 3 days. With an average humidity of 82%, it's a good idea to stay hydrated while enjoying this beautiful destination!

October Temperature in Casma

In October in Casma, the average temperature is 18°C (65°F). The maximum can reach 23°C (74°F), while the minimum can drop to as low as 15°C (59°F). This pleasant climate makes it an ideal time for travelers to enjoy outdoor activities and explore the local attractions.

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

The chart illustrates October 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, October typically has an average temperature of 18°C (65°F), with highs reaching up to 23°C (74°F) and lows dropping to around 15°C (59°F).

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

October Precipitation in Casma

In Casma in October, the precipitation amount is 9 mm (0.3 in) measured over a span of 3 days.

October Precipitation Trends in Casma

The chart displays monthly precipitation patterns in Casma, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Casma, October typically receives around 9 mm (0.3 inches) of precipitation spread over approximately 3 days.

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

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Millimeters (mm) Inches (in)

October Humidity in Casma

In Casma in October, humidity is 82%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace that can quickly leave travelers feeling fatigued and in need of frequent breaks to stay refreshed and hydrated.

October Average Humidity in Casma

This chart illustrates the average monthly humidity levels in Casma, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Casma is approximately 82%, offering insight into how humid the weather typically is during this month.

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

October UV Index in Casma

In Casma in October, 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 October

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

Data source: Casma October 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 October 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 October’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 October’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