May Weather in Lima, United States

Last updated: June 24, 2025

In Lima, United States, the average temperature in May hovers around 15°C (59°F), with fluctuations that can dip as low as -2°C (29°F) and soar up to 33°C (92°F). Expect a fair share of rain, with 109 mm (4.3 in) of precipitation spread over 14 days. Coupled with an average humidity of 82%, it's a month that showcases the diverse and dynamic climate of the region.

May Temperature in Lima

In May in Lima, the average temperature is 15°C (59°F), with maximums reaching 33°C (92°F) and minimums dropping as low as -2°C (29°F). This wide range of temperatures makes Lima an exciting destination for travelers looking to experience diverse weather conditions.

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

The chart illustrates May temperature patterns in Lima, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lima, May typically has an average temperature of 15°C (59°F), with highs reaching up to 33°C (92°F) and lows dropping to around -2°C (29°F).

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

May Precipitation in Lima

In Lima in May, the precipitation amount is 109 mm (4.3 in) over the course of 14 days.

May Precipitation Trends in Lima

The chart displays monthly precipitation patterns in Lima, 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 Lima, May typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 14 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 Lima

In Lima in May, humidity is 82%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and uncomfortable for travelers.

May Average Humidity in Lima

This chart illustrates the average monthly humidity levels in Lima, 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 Lima is approximately 82%, 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 Lima

In Lima in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Lima.

Maximum UV Index Levels in Lima for May

The chart shows the monthly maximum UV Index (UVI) for Lima 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 Lima typically reaches 10, which falls under the very high exposure category.

Data source: Lima 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 Lima Compares to Other Months

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

This table compares monthly weather conditions in Lima, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	76 mm (3.0 inches)	91%	low
February Weather	-2°C (29°F)	79 mm (3.1 inches)	91%	moderate
March Weather	2°C (35°F)	73 mm (2.9 inches)	88%	moderate
April Weather	8°C (46°F)	112 mm (4.4 inches)	88%	very high
May Weather	15°C (59°F)	109 mm (4.3 inches)	82%	very high
June Weather	20°C (68°F)	83 mm (3.3 inches)	79%	very high
July Weather	23°C (73°F)	140 mm (5.5 inches)	77%	very high
August Weather	22°C (71°F)	95 mm (3.8 inches)	72%	very high
September Weather	18°C (65°F)	73 mm (2.9 inches)	76%	high
October Weather	12°C (54°F)	140 mm (5.5 inches)	83%	moderate
November Weather	4°C (40°F)	84 mm (3.3 inches)	88%	moderate
December Weather	0°C (32°F)	85 mm (3.3 inches)	87%	low