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May Weather in San Sebastian, Philippines

Last updated: August 27, 2025

In San Sebastian, Philippines, the average temperature in May hovers around 28°C (83°F), with lows of 24°C (75°F) and highs reaching up to 33°C (92°F). Despite the warmth, expect 121 mm (4.8 in) of precipitation spread over 26 days, resulting in an average humidity of a steamy 84%. Prepare accordingly for a tropical experience!

May Temperature in San Sebastian

In May in San Sebastian, the average temperature is 28°C (83°F), with maximums reaching 33°C (92°F) and minimums dipping as low as 24°C (75°F). This warm and pleasant climate makes San Sebastian an ideal destination for travelers seeking a sunny getaway.

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

The chart illustrates May temperature patterns in San Sebastian, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Sebastian, May typically has an average temperature of 28°C (83°F), with highs reaching up to 33°C (92°F) and lows dropping to around 24°C (75°F).
JanFebMarAprMayJunJulAugSepOctNovDec797880818282818181818079
Data source: Temperature data for San Sebastian 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 Sebastian

In San Sebastian in May, the total precipitation amount is 121 mm (4.8 in) spread over 26 days.

May Precipitation Trends in San Sebastian

The chart displays monthly precipitation patterns in San Sebastian, 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 Sebastian, May typically receives around 121 mm (4.8 inches) of precipitation spread over approximately 26 days.
JanFebMarAprMayJunJulAugSepOctNovDec17611686124122261316260251263185296
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Sebastian

In San Sebastian in May, humidity is 84%. With an average temperature of 28°C (83°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier and the air almost stifling for traveling.

May Average Humidity in San Sebastian

This chart illustrates the average monthly humidity levels in San Sebastian, 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 Sebastian is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%80%77%78%85%87%88%89%90%87%90%91%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Sebastian

In San Sebastian 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 Sebastian, you can check here.

Maximum UV Index Levels in San Sebastian for May

The chart shows the monthly maximum UV Index (UVI) for San Sebastian 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 Sebastian typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec121316161414131414141211
Data source: San Sebastian 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 Sebastian Compares to Other Months

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

This table compares monthly weather conditions in San Sebastian, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)176 mm (6.9 inches)85%extreme
February Weather26°C (79°F)116 mm (4.6 inches)80%extreme
March Weather27°C (80°F)86 mm (3.4 inches)77%extreme
April Weather27°C (81°F)124 mm (4.9 inches)78%extreme
May Weather28°C (83°F)121 mm (4.8 inches)84%extreme
June Weather28°C (82°F)261 mm (10.3 inches)87%extreme
July Weather27°C (81°F)316 mm (12.4 inches)88%extreme
August Weather27°C (82°F)260 mm (10.2 inches)89%extreme
September Weather27°C (81°F)251 mm (9.9 inches)90%extreme
October Weather27°C (81°F)263 mm (10.4 inches)87%extreme
November Weather27°C (81°F)185 mm (7.3 inches)90%extreme
December Weather26°C (80°F)296 mm (11.7 inches)91%extreme

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