August Weather in San Francisco, Philippines

Last updated: August 27, 2025

In August, the average temperature in San Francisco, Philippines reaches a pleasant 28°C (82°F). The climate varies slightly, with minimums dipping to 25°C (77°F) and maximums peaking at 29°C (85°F). This month also witnesses about 189 mm (7.4 in) of precipitation spread across 24 days, contributing to an average humidity level of 81%. Enjoy the warmth, but be prepared for those occasional showers!

August Temperature in San Francisco

In August in San Francisco, the average temperature is 28°C (82°F). The maximum can reach 29°C (85°F), while the minimum can be as low as 25°C (77°F). This pleasant weather makes it an ideal time for travelers to explore and enjoy all the outdoor activities that San Francisco has to offer.

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

The chart illustrates August temperature patterns in San Francisco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Francisco, August typically has an average temperature of 28°C (82°F), with highs reaching up to 29°C (85°F) and lows dropping to around 25°C (77°F).

Data source: Temperature data for San Francisco generated using information from the Copernicus Climate Change Service.

August Precipitation in San Francisco

In San Francisco in August, the precipitation amount is 189 mm (7.4 in) over the course of 24 days.

August Precipitation Trends in San Francisco

The chart displays monthly precipitation patterns in San Francisco, 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 Francisco, August typically receives around 189 mm (7.4 inches) of precipitation spread over approximately 24 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in San Francisco

In San Francisco in August, humidity is 81%. With an average temperature of 28°C (82°F), this humidity feels like a warm blanket wrapped around you, making traveling somewhat uncomfortable as the air thickens, leaving you longing for a refreshing breeze.

August Average Humidity in San Francisco

This chart illustrates the average monthly humidity levels in San Francisco, 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 Francisco is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in San Francisco

In San Francisco 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 Francisco, you can check here.

Maximum UV Index Levels in San Francisco for August

The chart shows the monthly maximum UV Index (UVI) for San Francisco 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 Francisco typically reaches 14, which falls under the extreme exposure category.

Data source: San Francisco 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 Francisco Compares to Other Months

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

This table compares monthly weather conditions in San Francisco, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (79°F)	297 mm (11.7 inches)	90%	extreme
February Weather	26°C (79°F)	224 mm (8.8 inches)	90%	extreme
March Weather	26°C (80°F)	162 mm (6.4 inches)	90%	extreme
April Weather	27°C (81°F)	90 mm (3.6 inches)	88%	extreme
May Weather	27°C (82°F)	132 mm (5.2 inches)	83%	extreme
June Weather	28°C (82°F)	186 mm (7.3 inches)	81%	extreme
July Weather	28°C (82°F)	238 mm (9.4 inches)	80%	extreme
August Weather	28°C (82°F)	189 mm (7.4 inches)	81%	extreme
September Weather	28°C (82°F)	215 mm (8.5 inches)	84%	extreme
October Weather	27°C (81°F)	263 mm (10.4 inches)	81%	extreme
November Weather	27°C (81°F)	241 mm (9.5 inches)	84%	extreme
December Weather	27°C (80°F)	391 mm (15.4 inches)	88%	extreme