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May Weather in Santa Rosa, Peru

Last updated: August 27, 2025

In May, the average temperature in Santa Rosa, Peru hovers around 4°C (40°F), offering a chilly embrace. Expect nighttime lows to dip as low as -9°C (17°F), while daytime highs can reach a comfortable 14°C (58°F). With 52 mm (2.0 in) of precipitation spread over 13 days, don't forget your umbrella! Additionally, the air carries a notable average humidity of 87%, contributing to the brisk atmosphere.

May Temperature in Santa Rosa

In May in Santa Rosa, the average temperature is 4°C (40°F), with a maximum reaching 14°C (58°F) and a minimum dropping as low as -9°C (17°F). This variation in temperature suggests that travelers should prepare for chilly conditions and pack accordingly for both mild and cold weather.

May Weather in Santa Rosa: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Santa Rosa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Rosa, May typically has an average temperature of 4°C (40°F), with highs reaching up to 14°C (58°F) and lows dropping to around -9°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec424242413938384042434443
Data source: Temperature data for Santa Rosa 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 Santa Rosa

In Santa Rosa in May, the total precipitation amount is 52 mm (2.0 in) over the course of 13 days.

May Precipitation Trends in Santa Rosa

The chart displays monthly precipitation patterns in Santa Rosa, 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 Santa Rosa, May typically receives around 52 mm (2.0 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec2502642641155214131459121154245
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Santa Rosa

In Santa Rosa in May humidity is 87%. With an average temperature of 4°C (40°F), this humidity feels like an uncomfortable chill that seeps into your bones, making it essential to dress warmly and prepare for damp conditions, which can dampen your spirits while traveling.

May Average Humidity in Santa Rosa

This chart illustrates the average monthly humidity levels in Santa Rosa, 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 Santa Rosa 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 Santa Rosa

In Santa Rosa 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 Santa Rosa, you can check here.

Maximum UV Index Levels in Santa Rosa for May

The chart shows the monthly maximum UV Index (UVI) for Santa Rosa 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 Santa Rosa typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec232322181411131518191921
Data source: Santa Rosa 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 Santa Rosa Compares to Other Months

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

This table compares monthly weather conditions in Santa Rosa, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)250 mm (9.8 inches)92%extreme
February Weather6°C (42°F)264 mm (10.4 inches)93%extreme
March Weather6°C (42°F)264 mm (10.4 inches)92%extreme
April Weather5°C (42°F)114 mm (4.5 inches)91%extreme
May Weather4°C (40°F)52 mm (2.0 inches)87%extreme
June Weather3°C (38°F)14 mm (0.5 inches)76%extreme
July Weather3°C (38°F)13 mm (0.5 inches)57%extreme
August Weather5°C (41°F)14 mm (0.5 inches)51%extreme
September Weather6°C (43°F)59 mm (2.3 inches)67%extreme
October Weather6°C (43°F)121 mm (4.8 inches)77%extreme
November Weather7°C (44°F)154 mm (6.0 inches)85%extreme
December Weather6°C (43°F)245 mm (9.6 inches)90%extreme

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