May Weather in Peru, United States

Last updated: June 24, 2025

The average temperature in Peru, United States during May hovers around 12°C (54°F). Expect minimums dipping to -2°C (29°F) and warm maximums reaching 33°C (91°F). With an average precipitation of 87 mm (3.4 in) spread over 10 days, the average humidity sits comfortably at 78%, creating a unique climate experience for visitors.

May Temperature in Peru

In May in Peru, the average temperature is 12°C (54°F), with maximums reaching up to 33°C (91°F) and minimums dropping as low as -2°C (29°F). This diverse climate makes Peru an exciting destination for travelers seeking both warmth and cooler experiences.

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

The chart illustrates May temperature patterns in Peru, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Peru, May typically has an average temperature of 12°C (54°F), with highs reaching up to 33°C (91°F) and lows dropping to around -2°C (29°F).

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

May Precipitation in Peru

In Peru in May, the precipitation amount is 87 mm (3.4 in) over the course of 10 days.

May Precipitation Trends in Peru

The chart displays monthly precipitation patterns in Peru, 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 Peru, May typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 10 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 Peru

In Peru in May humidity is 78%. With an average temperature of 12°C (54°F), this humidity feels like a damp chill settling in, making travel a bit uncomfortable as the air clings to your skin, leaving you feeling cooler than the thermometer suggests.

May Average Humidity in Peru

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

In Peru in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Peru.

Maximum UV Index Levels in Peru for May

The chart shows the monthly maximum UV Index (UVI) for Peru 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 Peru typically reaches 9, which falls under the very high exposure category.

Data source: Peru 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 Peru Compares to Other Months

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

This table compares monthly weather conditions in Peru, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (18°F)	83 mm (3.3 inches)	91%	low
February Weather	-6°C (21°F)	86 mm (3.4 inches)	89%	moderate
March Weather	-2°C (29°F)	72 mm (2.8 inches)	85%	moderate
April Weather	5°C (41°F)	128 mm (5.0 inches)	84%	very high
May Weather	12°C (54°F)	87 mm (3.4 inches)	78%	very high
June Weather	17°C (64°F)	84 mm (3.3 inches)	72%	very high
July Weather	20°C (69°F)	133 mm (5.2 inches)	75%	very high
August Weather	19°C (67°F)	90 mm (3.5 inches)	74%	very high
September Weather	15°C (60°F)	64 mm (2.5 inches)	77%	high
October Weather	9°C (48°F)	128 mm (5.0 inches)	85%	moderate
November Weather	1°C (34°F)	107 mm (4.2 inches)	86%	moderate
December Weather	-5°C (23°F)	120 mm (4.7 inches)	85%	low