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May Weather in San Alejandro, Peru

Last updated: August 27, 2025

In May, the average temperature in San Alejandro, Peru hovers around 25°C (78°F), with a minimum of 17°C (63°F) and maximum reaching 34°C (94°F). Expect 178 mm (7.0 in) of precipitation spread over 18 days, contributing to an average humidity of 86%. Be prepared for a warm, humid month!

May Temperature in San Alejandro

In May in San Alejandro, the average temperature is 25°C (78°F), with maximums reaching 34°C (94°F) and minimums dropping to as low as 17°C (63°F). This pleasant climate makes it a great time to explore and enjoy outdoor activities in San Alejandro.

May Weather in San Alejandro: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in San Alejandro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Alejandro, May typically has an average temperature of 25°C (78°F), with highs reaching up to 34°C (94°F) and lows dropping to around 17°C (63°F).
JanFebMarAprMayJunJulAugSepOctNovDec787978787877777980797979
Data source: Temperature data for San Alejandro generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in San Alejandro

In San Alejandro in May, the total precipitation amount is 178 mm (7.0 in), occurring over 18 days of the month.

May Precipitation Trends in San Alejandro

The chart displays monthly precipitation patterns in San Alejandro, 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 San Alejandro, May typically receives around 178 mm (7.0 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec304364406240178998676117236341308
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Alejandro

In San Alejandro in May, humidity is 86%. With an average temperature of 25°C (78°F), this humidity feels like a warm, damp blanket wrapping around you, making outdoor activities challenging and potentially uncomfortable for traveling.

May Average Humidity in San Alejandro

This chart illustrates the average monthly humidity levels in San Alejandro, 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 San Alejandro is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%86%89%89%86%71%44%34%37%50%73%91%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Alejandro

In San Alejandro in May, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in San Alejandro.

Maximum UV Index Levels in San Alejandro for May

The chart shows the monthly maximum UV Index (UVI) for San Alejandro 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 San Alejandro typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151616161211111214141514
Data source: San Alejandro 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 San Alejandro Compares to Other Months

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

This table compares monthly weather conditions in San Alejandro, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)304 mm (12.0 inches)88%extreme
February Weather26°C (79°F)364 mm (14.3 inches)86%extreme
March Weather26°C (78°F)406 mm (16.0 inches)89%extreme
April Weather26°C (78°F)240 mm (9.4 inches)89%extreme
May Weather25°C (78°F)178 mm (7.0 inches)86%extreme
June Weather25°C (77°F)99 mm (3.9 inches)71%extreme
July Weather25°C (77°F)86 mm (3.4 inches)44%extreme
August Weather26°C (79°F)76 mm (3.0 inches)34%extreme
September Weather27°C (81°F)117 mm (4.6 inches)37%extreme
October Weather26°C (80°F)236 mm (9.3 inches)50%extreme
November Weather26°C (79°F)341 mm (13.4 inches)73%extreme
December Weather26°C (79°F)308 mm (12.1 inches)91%extreme

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