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May Weather in San Jose, Mexico

Last updated: August 27, 2025

In May, the average temperature in San Jose, Mexico is a mild 17°C (63°F). Expect lows of 7°C (44°F) and highs reaching 28°C (83°F). This period also sees an average precipitation of 200 mm (7.9 in) over approximately 20 days, contributing to an average humidity of 77%, creating a uniquely fresh atmosphere.

May Temperature in San Jose

In May in San Jose, the average temperature is 17°C (63°F). Maximum temperatures can reach 28°C (83°F) while minimums can drop as low as 7°C (44°F). This makes San Jose a comfortable destination for travelers seeking mild weather during this time.

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 17°C (63°F), with highs reaching up to 28°C (83°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec535659626361606060595654
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 precipitation amount is 200 mm (7.9 in), distributed over a span of 20 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 200 mm (7.9 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec151737552004223254013622156014
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 77%. With an average temperature of 17°C (63°F), this humidity feels like a cozy blanket wrapped around you, creating a muggy atmosphere that can be a bit uncomfortable for traveling, making you want to seek shade and hydration as you explore.

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 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%78%75%71%77%76%68%70%82%91%89%88%
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.
JanFebMarAprMayJunJulAugSepOctNovDec10121515151414141512109
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 Weather12°C (54°F)15 mm (0.6 inches)84%very high
February Weather13°C (56°F)17 mm (0.7 inches)78%extreme
March Weather15°C (60°F)37 mm (1.5 inches)75%extreme
April Weather16°C (62°F)55 mm (2.2 inches)70%extreme
May Weather17°C (63°F)200 mm (7.9 inches)77%extreme
June Weather16°C (61°F)422 mm (16.6 inches)76%extreme
July Weather16°C (60°F)324 mm (12.8 inches)68%extreme
August Weather16°C (60°F)401 mm (15.8 inches)70%extreme
September Weather15°C (60°F)362 mm (14.2 inches)82%extreme
October Weather15°C (59°F)215 mm (8.5 inches)91%extreme
November Weather14°C (57°F)60 mm (2.4 inches)89%very high
December Weather12°C (54°F)14 mm (0.5 inches)88%very high

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