San Francisco Weather in August
San Francisco in August sees very high daytime temperatures of 31°C (88°F) and nighttime lows of 27°C (81°F). Rainfall is fairly high this month at around 236 mm (9.3 in), so pack a rain jacket to stay dry.
Rainfall in San Francisco in August
Historically, August sees about 19 days of rain, with a monthly average of 236 mm (9.3 in). This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in San Francisco in August
Expect highs of 31°C (88°F) in San Francisco in August, with nights dropping to around 27°C (81°F). Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. At 27°C (81°F) overnight, the heat doesn't let up much after dark. If you're staying somewhere without air conditioning, a cold shower before bed and keeping the air moving can help. Typical temperatures can be misleading; some days will be hotter. Prepare with light clothing and plenty of hydration to stay cool.If you prefer dry days with pleasant temperatures, August may not be the ideal month to visit San Francisco. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our San Francisco's climate page.
San Francisco Temperature in August
Min Temperature
27°C (81°F)
Max Temperature
31°C (88°F)
Chance of Rain
62%
Precipitation
236 mm (9.3 in)
Rainy days
19 days
Humidity
70% *
Best Places in Mexico in August
Find out more about the weather in Mexico and which places have the best travel conditions in this month. See all of Mexico in August →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in San Francisco in August
Warm weather calls for comfortable, breathable clothing in August. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can.What To Do in San Francisco in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our San Francisco's climate page.
See the full San Francisco climate overview or explore weather in Mexico.
