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May Weather in San Cristobal, Peru

Last updated: August 27, 2025

In May, the average temperature in San Cristobal, Peru is a brisk 9°C (49°F). Expect a minimum drop to -4°C (26°F) and a pleasant maximum of 20°C (68°F). During this time, precipitation is modest, averaging just 6 mm (0.2 in) over 1 day, with humidity lingering at a noteworthy 88%. Get ready for an invigorating month ahead!

May Temperature in San Cristobal

In May, in San Cristobal, the average temperature is 9°C (49°F). The maximum can reach 20°C (68°F), while the minimum can be as low as -4°C (26°F). This makes San Cristobal a great destination for travelers who enjoy mild weather and are prepared for cool evenings.

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 9°C (49°F), with highs reaching up to 20°C (68°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec494848484948484952525251
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 6 mm (0.2 in) over the course of 1 day.

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 6 mm (0.2 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec2302442105261215173592
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 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and requiring extra layers to stay warm and dry.

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.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%90%91%88%76%61%57%59%75%84%84%
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 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 Cristobal.

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 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec181917151210111416181818
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 Weather9°C (49°F)230 mm (9.1 inches)89%extreme
February Weather9°C (49°F)244 mm (9.6 inches)90%extreme
March Weather9°C (49°F)209 mm (8.2 inches)90%extreme
April Weather9°C (49°F)52 mm (2.0 inches)91%extreme
May Weather9°C (49°F)6 mm (0.2 inches)88%extreme
June Weather9°C (48°F)1 mm (0.1 inches)76%very high
July Weather9°C (48°F)2 mm (0.1 inches)61%extreme
August Weather9°C (49°F)1 mm (0.1 inches)57%extreme
September Weather11°C (52°F)5 mm (0.2 inches)58%extreme
October Weather11°C (53°F)17 mm (0.7 inches)75%extreme
November Weather11°C (52°F)35 mm (1.4 inches)83%extreme
December Weather11°C (51°F)92 mm (3.6 inches)84%extreme

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