May Weather in Alca, Peru

Last updated: August 27, 2025

In Alca, Peru, the average temperature in May hovers around 2°C (37°F). Expect chilly conditions with minimums plummeting to -9°C (16°F), while maxima can reach up to 13°C (56°F). With 46 mm (1.8 in) of precipitation spread over 13 days, it's wise to stay prepared for wet weather. Additionally, the average humidity is a brisk 84%, contributing to the overall cool climate.

May Temperature in Alca

In May in Alca, the average temperature is 2°C (37°F), with maximums potentially reaching 13°C (56°F) and minimums dropping as low as -9°C (16°F). It's advisable to dress warmly and be prepared for cold weather during your travels.

May Weather in Alca: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Alca, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alca, May typically has an average temperature of 2°C (37°F), with highs reaching up to 13°C (56°F) and lows dropping to around -9°C (16°F).

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

May Precipitation in Alca

In Alca in May, the total precipitation amount is 46 mm (1.8 in) spread over a duration of 13 days.

May Precipitation Trends in Alca

The chart displays monthly precipitation patterns in Alca, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Alca, May typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 13 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Alca

In Alca in May, humidity is 84%. With an average temperature of 2°C (37°F), this humidity feels like an uncomfortable chill that seeps into your bones, making outdoor activities less enjoyable and prompting the need for layered clothing to stay warm and dry.

May Average Humidity in Alca

This chart illustrates the average monthly humidity levels in Alca, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Alca is approximately 84%, offering insight into how humid the weather typically is during this month.

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

May UV Index in Alca

In Alca in May, 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 Alca, you can check here.

Maximum UV Index Levels in Alca for May

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

Data source: Alca May 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 May Weather in Alca Compares to Other Months

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

This table compares monthly weather conditions in Alca, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	225 mm (8.9 inches)	89%	extreme
February Weather	4°C (40°F)	240 mm (9.4 inches)	90%	extreme
March Weather	4°C (40°F)	253 mm (10.0 inches)	90%	extreme
April Weather	4°C (39°F)	113 mm (4.4 inches)	90%	extreme
May Weather	2°C (37°F)	46 mm (1.8 inches)	84%	extreme
June Weather	2°C (36°F)	13 mm (0.5 inches)	67%	extreme
July Weather	2°C (36°F)	12 mm (0.5 inches)	53%	extreme
August Weather	3°C (37°F)	13 mm (0.5 inches)	47%	extreme
September Weather	4°C (39°F)	47 mm (1.9 inches)	53%	extreme
October Weather	4°C (40°F)	76 mm (3.0 inches)	67%	extreme
November Weather	5°C (42°F)	81 mm (3.2 inches)	75%	extreme
December Weather	5°C (42°F)	136 mm (5.4 inches)	82%	extreme