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August Weather in San Sebastian, Philippines

Last updated: August 27, 2025

In San Sebastian, Philippines, the average temperature in August hovers around 28°C (82°F), with minimums dropping to 26°C (79°F) and maximums reaching up to 30°C (86°F). Expect a significant amount of rain, with 678 mm (26.7 in) of precipitation falling over 27 days. Don't forget, the average humidity is quite high at 87%, contributing to a warm and muggy atmosphere.

August Temperature in San Sebastian

In August in San Sebastian, the average temperature is 28°C (82°F), with maximums reaching up to 30°C (86°F) and minimums dropping to as low as 26°C (79°F). This pleasant weather makes San Sebastian an ideal destination for outdoor activities and exploration during this time of year.

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

The chart illustrates August 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, August typically has an average temperature of 28°C (82°F), with highs reaching up to 30°C (86°F) and lows dropping to around 26°C (79°F).
JanFebMarAprMayJunJulAugSepOctNovDec797981828483828282838281
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.

August Precipitation in San Sebastian

In San Sebastian in August, the total precipitation amount is 678 mm (26.7 in) over the course of 27 days.

August Precipitation Trends in San Sebastian

The chart displays monthly precipitation patterns in San Sebastian, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In San Sebastian, August typically receives around 678 mm (26.7 inches) of precipitation spread over approximately 27 days.
JanFebMarAprMayJunJulAugSepOctNovDec27135111443755616782981705817
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in San Sebastian

In San Sebastian in August humidity is 87%. With an average temperature of 28°C (82°F), this humidity feels like a warm, thick blanket wrapping around you, making travel challenging as you navigate the air's heavy moisture.

August Average Humidity in San Sebastian

This chart illustrates the average monthly humidity levels in San Sebastian, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in San Sebastian is approximately 87%, 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 August generated using information from the Copernicus Climate Change Service.

August UV Index in San Sebastian

In San Sebastian in August, 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 August

The chart shows the monthly maximum UV Index (UVI) for San Sebastian in August, 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 August, the maximum UV index in San Sebastian typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121414131314141413109
Data source: San Sebastian August 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 August 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 August’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 August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (80°F)27 mm (1.1 inches)77%very high
February Weather26°C (79°F)13 mm (0.5 inches)73%extreme
March Weather27°C (81°F)5 mm (0.2 inches)71%extreme
April Weather28°C (83°F)11 mm (0.4 inches)73%extreme
May Weather29°C (84°F)144 mm (5.7 inches)77%extreme
June Weather29°C (84°F)375 mm (14.7 inches)85%extreme
July Weather28°C (83°F)561 mm (22.1 inches)86%extreme
August Weather28°C (82°F)678 mm (26.7 inches)87%extreme
September Weather28°C (82°F)298 mm (11.7 inches)87%extreme
October Weather28°C (83°F)170 mm (6.7 inches)86%extreme
November Weather28°C (83°F)58 mm (2.3 inches)89%very high
December Weather27°C (81°F)17 mm (0.7 inches)85%very high

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