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May Weather in San Cristobal, Peru

Last updated: August 27, 2025

In San Cristobal, Peru, the average temperature in May is a comfortable 17°C (62°F). Expect a range from a chilly 9°C (49°F) to a warm 24°C (76°F). However, don't forget your umbrella, as precipitation averages around 130 mm (5.1 in) over 26 days. With a high average humidity of 88%, it can feel quite damp, so be prepared!

May Temperature in San Cristobal

In May in San Cristobal, the average temperature is 17°C (62°F), with maximums reaching 24°C (76°F) and minimums dropping as low as 9°C (49°F). It's a great time for traveling, as the pleasant weather is perfect for exploring the local sights and enjoying outdoor activities.

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

The chart illustrates May temperature patterns in San Cristobal, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Cristobal, May typically has an average temperature of 17°C (62°F), with highs reaching up to 24°C (76°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec626262626261616161616162
Data source: Temperature data for San Cristobal 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 Cristobal

In San Cristobal in May, the precipitation amount is 130 mm (5.1 in) spread over 26 days.

May Precipitation Trends in San Cristobal

The chart displays monthly precipitation patterns in San Cristobal, 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 Cristobal, May typically receives around 130 mm (5.1 inches) of precipitation spread over approximately 26 days.
JanFebMarAprMayJunJulAugSepOctNovDec19826440023813055393448149157199
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Cristobal

In San Cristobal in May, humidity is 88%. With an average temperature of 17°C (62°F), this humidity feels like traveling through a dense fog, making the air feel heavy and sticky, which can be quite uncomfortable for outdoor activities.

May Average Humidity in San Cristobal

This chart illustrates the average monthly humidity levels in San Cristobal, 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 Cristobal is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%85%87%88%73%51%44%49%71%77%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Cristobal

In San Cristobal 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 Cristobal, you can check here.

Maximum UV Index Levels in San Cristobal for May

The chart shows the monthly maximum UV Index (UVI) for San Cristobal 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 Cristobal typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161617171412121316161514
Data source: San Cristobal 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 Cristobal Compares to Other Months

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

This table compares monthly weather conditions in San Cristobal, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (62°F)198 mm (7.8 inches)82%extreme
February Weather17°C (62°F)264 mm (10.4 inches)80%extreme
March Weather17°C (62°F)400 mm (15.8 inches)85%extreme
April Weather17°C (62°F)238 mm (9.4 inches)87%extreme
May Weather17°C (62°F)130 mm (5.1 inches)88%extreme
June Weather16°C (61°F)55 mm (2.2 inches)73%extreme
July Weather16°C (61°F)39 mm (1.5 inches)51%extreme
August Weather16°C (61°F)34 mm (1.3 inches)44%extreme
September Weather16°C (62°F)48 mm (1.9 inches)49%extreme
October Weather16°C (61°F)149 mm (5.9 inches)71%extreme
November Weather16°C (61°F)157 mm (6.2 inches)77%extreme
December Weather16°C (62°F)199 mm (7.8 inches)85%extreme

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