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May Weather in San Jose, Peru

Last updated: August 27, 2025

In San Jose, Peru, the average temperature in May is a pleasant 16°C (62°F). With minimums dipping to 10°C (50°F) and maximums soaring to 25°C (77°F), this month offers a comfortable climate for all. Expect 157 mm (6.2 in) of precipitation spread over 28 days, alongside an average humidity level of 78%—perfect for those who enjoy a bit of moisture in the air!

May Temperature in San Jose

In May, in San Jose, the average temperature is 16°C (62°F). Maximums can reach 25°C (77°F) and minimums can be as low as 10°C (50°F). This mild climate makes San Jose an ideal destination for outdoor activities and exploration.

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

The chart illustrates May temperature patterns in San Jose, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Jose, May typically has an average temperature of 16°C (62°F), with highs reaching up to 25°C (77°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec626362626160595960626363
Data source: Temperature data for San Jose 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 Jose

In San Jose in May, the total precipitation amount is 157 mm (6.2 in) over a span of 28 days.

May Precipitation Trends in San Jose

The chart displays monthly precipitation patterns in San Jose, 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 Jose, May typically receives around 157 mm (6.2 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec222222257207157131143142133183167247
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Jose

In San Jose in May, humidity is 78%. With an average temperature of 16°C (62°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities enjoyable yet slightly sticky. Travelers may find the weather pleasantly mild, though they'll appreciate having light, breathable clothing on hand to stay comfortable while exploring.

May Average Humidity in San Jose

This chart illustrates the average monthly humidity levels in San Jose, 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 Jose is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%81%88%85%78%62%44%38%42%58%69%82%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Jose

In San Jose in May, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in San Jose.

Maximum UV Index Levels in San Jose for May

The chart shows the monthly maximum UV Index (UVI) for San Jose 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 Jose typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec171718181513131416171616
Data source: San Jose 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 Jose Compares to Other Months

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

This table compares monthly weather conditions in San Jose, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (62°F)222 mm (8.8 inches)83%extreme
February Weather17°C (63°F)221 mm (8.7 inches)81%extreme
March Weather17°C (62°F)257 mm (10.1 inches)88%extreme
April Weather16°C (62°F)207 mm (8.1 inches)85%extreme
May Weather16°C (62°F)157 mm (6.2 inches)78%extreme
June Weather16°C (61°F)131 mm (5.1 inches)62%extreme
July Weather15°C (59°F)143 mm (5.6 inches)44%extreme
August Weather15°C (60°F)142 mm (5.6 inches)38%extreme
September Weather16°C (60°F)133 mm (5.3 inches)42%extreme
October Weather16°C (62°F)183 mm (7.2 inches)58%extreme
November Weather17°C (63°F)167 mm (6.6 inches)69%extreme
December Weather17°C (63°F)247 mm (9.7 inches)82%extreme

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