August Weather in San Francisco, Philippines

Last updated: August 27, 2025

In August, the average temperature in San Francisco, Philippines reaches a warm 28°C (83°F), with minimum temperatures hovering around 25°C (77°F) and maximums peaking at 33°C (91°F). Expect frequent rain, as the region sees 242 mm (9.5 in) of precipitation over 24 days, resulting in a high humidity level of around 85%. Be prepared for a lush, tropical atmosphere!

August Temperature in San Francisco

In August in San Francisco, the average temperature is 28°C (83°F). Maximums can reach 33°C (91°F), while minimums can drop to 25°C (77°F). This mild and warm weather makes San Francisco an ideal destination for travelers seeking pleasant conditions.

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 (83°F), with highs reaching up to 33°C (91°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 242 mm (9.5 in) spread over 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 242 mm (9.5 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 85%. With an average temperature of 28°C (83°F), this humidity feels like an enveloping blanket, making traveling quite sticky and exhausting, as the air thickens and makes every movement feel laborious.

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 85%, 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 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 Francisco.

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 15, 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)	105 mm (4.1 inches)	78%	extreme
February Weather	26°C (79°F)	74 mm (2.9 inches)	75%	extreme
March Weather	27°C (81°F)	51 mm (2.0 inches)	74%	extreme
April Weather	28°C (83°F)	47 mm (1.8 inches)	76%	extreme
May Weather	29°C (84°F)	151 mm (6.0 inches)	76%	extreme
June Weather	29°C (84°F)	219 mm (8.6 inches)	81%	extreme
July Weather	28°C (83°F)	313 mm (12.3 inches)	84%	extreme
August Weather	28°C (83°F)	242 mm (9.5 inches)	85%	extreme
September Weather	28°C (83°F)	315 mm (12.4 inches)	85%	extreme
October Weather	28°C (82°F)	252 mm (9.9 inches)	82%	extreme
November Weather	27°C (82°F)	197 mm (7.8 inches)	85%	extreme
December Weather	27°C (80°F)	215 mm (8.4 inches)	86%	extreme