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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 a chilly minimum of -7°C (19°F) and a mild maximum of 15°C (59°F). During this month, precipitation totals about 36 mm (1.4 in) over 12 days, contributing to an average humidity of 87%—perfect for cozy indoor activities!

May Temperature in San Pedro

In May, in San Pedro, the average temperature is 5°C (41°F). Maximums can reach 15°C (59°F) and minimums can drop as low as -7°C (19°F). Visitors should be prepared for a wide range of temperatures and pack accordingly for their trip.

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 (59°F) and lows dropping to around -7°C (19°F).
JanFebMarAprMayJunJulAugSepOctNovDec444444434139394143454645
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 36 mm (1.4 in), distributed over 12 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 36 mm (1.4 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec223256247973612131237105157225
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 87%. With an average temperature of 5°C (41°F), this humidity feels like a heavy, damp blanket enveloping you, making every step seem laborious and the chill more biting, which can be quite challenging for traveling.

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 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%93%92%91%87%76%57%51%67%77%85%90%
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 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 San Pedro, you can check here.

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 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec232319171411131517181919
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 Weather7°C (44°F)222 mm (8.8 inches)92%extreme
February Weather7°C (44°F)256 mm (10.1 inches)93%extreme
March Weather7°C (44°F)247 mm (9.7 inches)92%extreme
April Weather6°C (43°F)97 mm (3.8 inches)91%extreme
May Weather5°C (41°F)36 mm (1.4 inches)87%extreme
June Weather4°C (40°F)12 mm (0.5 inches)76%extreme
July Weather4°C (39°F)13 mm (0.5 inches)57%extreme
August Weather5°C (41°F)12 mm (0.5 inches)51%extreme
September Weather6°C (44°F)37 mm (1.5 inches)67%extreme
October Weather7°C (45°F)105 mm (4.1 inches)77%extreme
November Weather8°C (46°F)157 mm (6.2 inches)85%extreme
December Weather7°C (45°F)225 mm (8.8 inches)90%extreme

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