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May Weather in San Pedro, Peru

Last updated: August 27, 2025

In May, the average temperature in San Pedro, Peru hovers around 5°C (41°F). Expect chilly days, with temperatures dipping as low as -7°C (20°F) and peaking at 15°C (60°F). Be prepared for wet weather, as the region typically sees 63 mm (2.5 in) of precipitation over 14 days, contributing to an average humidity of 84%.

May Temperature in San Pedro

In May in San Pedro, the average temperature is 5°C (41°F). Maximum temperatures can reach 15°C (60°F), while the minimum can drop as low as -7°C (20°F). This variation makes it essential for travelers to pack accordingly, ensuring they are prepared for both chilly and milder conditions.

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

The chart illustrates May temperature patterns in San Pedro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Pedro, May typically has an average temperature of 5°C (41°F), with highs reaching up to 15°C (60°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec444343434140394042424343
Data source: Temperature data for San Pedro 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 Pedro

In San Pedro in May, the precipitation amount is 63 mm (2.5 in) over a span of 14 days.

May Precipitation Trends in San Pedro

The chart displays monthly precipitation patterns in San Pedro, 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 Pedro, May typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec2572622831226335293091113116166
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Pedro

In San Pedro in May humidity is 84%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable as you navigate through the cold, heavy air that clings to your skin.

May Average Humidity in San Pedro

This chart illustrates the average monthly humidity levels in San Pedro, 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 Pedro is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%90%90%84%67%53%47%53%67%75%83%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Pedro

In San Pedro in May, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in San Pedro.

Maximum UV Index Levels in San Pedro for May

The chart shows the monthly maximum UV Index (UVI) for San Pedro 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 Pedro typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec191920171311131416181919
Data source: San Pedro 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 Pedro Compares to Other Months

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

This table compares monthly weather conditions in San Pedro, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (44°F)257 mm (10.1 inches)89%extreme
February Weather6°C (44°F)262 mm (10.3 inches)90%extreme
March Weather6°C (44°F)283 mm (11.1 inches)90%extreme
April Weather6°C (43°F)122 mm (4.8 inches)90%extreme
May Weather5°C (41°F)63 mm (2.5 inches)84%extreme
June Weather4°C (40°F)35 mm (1.4 inches)67%extreme
July Weather4°C (40°F)29 mm (1.1 inches)53%extreme
August Weather5°C (41°F)30 mm (1.2 inches)47%extreme
September Weather6°C (42°F)91 mm (3.6 inches)53%extreme
October Weather6°C (43°F)113 mm (4.5 inches)67%extreme
November Weather6°C (44°F)116 mm (4.6 inches)75%extreme
December Weather6°C (44°F)166 mm (6.5 inches)82%extreme

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