August Weather in San Francisco

Last updated: March 2, 2024

The weather in San Francisco, Peru, during August is characterized by an average temperature of 15°C (58°F). Highs can soar to 23°C (74°F), while lows may dip to 6°C (43°F). Typically, the humidity level in San Francisco throughout August hovers around 44%.

6°C (43°F)

Minimum temperature

15°C (58°F)

Average temperature

23°C (74°F)

Maximum temperature

44%

Humidity

Precipitation and Sunshine hours

In August, San Francisco averages 64 mm (2.5 inches) of rainfall, typically over the course of 9 rainy days. The month enjoys an average of 11 hours 41 minutes of daylight, with the sun shining for approximately 10 hours 39 minutes each day. Additionally, there is a 50% probability of sunny days during this period.

64 mm (2.5 inches)

Precipitation

9 rainy days

Rainy days

10 hours 39 minutes

Sunshine hours

50%

Chance of sun

UV Index

In August, the UV Index in San Francisco reaches a maximum of 13, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 10 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 3 6 10 12 13 12 9 5 2 1 0 0
Exposure Low Moderate High VeryHigh Extreme VeryHigh Moderate Low
Time to burn 45 min 30 min 25 min 15 min 10 min 15 min 30 min 45 min

Compare San Francisco's Climate with Cities Worldwide