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May Weather in San Jose, Philippines

Last updated: August 27, 2025

In May, the average temperature in San Jose, Philippines hovers around 29°C (84°F). Visitors can expect a comfortable minimum of 21°C (70°F), while highs can reach up to 39°C (102°F). With an average humidity of 77%, the air can feel quite warm. However, be prepared for some rain, as 321 mm (12.6 in) of precipitation may fall over approximately 15 days.

May Temperature in San Jose

In May in San Jose, the average temperature is 29°C (84°F), with maximums reaching 39°C (102°F) and minimums dropping as low as 21°C (70°F). This range makes it a great time for travelers who enjoy warm weather activities.

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 29°C (84°F), with highs reaching up to 39°C (102°F) and lows dropping to around 21°C (70°F).
JanFebMarAprMayJunJulAugSepOctNovDec747477808484838281807875
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 321 mm (12.6 in) recorded over a span of 15 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 321 mm (12.6 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec22118710167321217312375223194241329
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 29°C (84°F), this humidity feels like a warm blanket enveloping you, making traveling feel heavy and sticky, and often requiring frequent breaks to find relief in shaded areas or air-conditioned spaces.

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.
JanFebMarAprMayJunJulAugSepOctNovDec77%73%71%73%77%85%86%87%87%86%89%85%
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 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 Jose, you can check here.

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 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec11131415141414141413109
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 Weather23°C (74°F)221 mm (8.7 inches)77%extreme
February Weather23°C (74°F)187 mm (7.4 inches)73%extreme
March Weather25°C (78°F)101 mm (4.0 inches)71%extreme
April Weather27°C (80°F)67 mm (2.6 inches)73%extreme
May Weather29°C (84°F)321 mm (12.6 inches)77%extreme
June Weather29°C (85°F)217 mm (8.5 inches)85%extreme
July Weather28°C (83°F)312 mm (12.3 inches)86%extreme
August Weather28°C (82°F)375 mm (14.8 inches)87%extreme
September Weather27°C (82°F)223 mm (8.8 inches)87%extreme
October Weather26°C (80°F)194 mm (7.6 inches)86%extreme
November Weather26°C (78°F)241 mm (9.5 inches)89%very high
December Weather24°C (76°F)329 mm (12.9 inches)85%very high

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