World Weather & Climate Information

Average weather August in San Francisco (California), United States of America

The average minimum temperature (usually the minimum temperature is noted during the night) in San Francisco in August is 12.0°C (53.6°F). The amount of rain in August is extremely low with an average of 1mm (0.0in). This month generally has very pleasant temperatures. The average maximum temperature lies around 20.0°C (68°F). With a water temperature of around 14.0°C (57.2°F), this is not the best month to swim. If you enjoy looking at a blue sky and like sunbathing than this month is a great period to visit San Francisco. It has 287 hours of sun.

So what to wear in August? Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly. For visitors traveling to San Francisco we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings.

Do these climate conditions match with when you want to go to San Francisco? Find out where to stay here.

For other monthly weather averages and what to do in August look at the numbers below.

Monthly averages

°C
Min Temperature 12.0°C
Max Temperature 20.0°C
Water Temperature 14.0°C
Chance of Rain 3.3%
Precipitation 1mm
Rainy Days 1
Windspeed 21.6kmph
Humidity 75%
Sunshine Hours 287
Percentage Sunshine 68%

What to Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in August.
Cycling
10/10
Walking
10/10
Barbeque
9/10
Camping
10/10
Outdoor sports
10/10

More climate information for San Francisco

Weather and Climate offers all the information you need to know about the climate in San Francisco.

We collected past weather data from many thousand weather stations around the world. So find on this website the historical weather averages in other cities in United States of America and climate and forecast data for all other countries in the world.

Cheapest month to fly to San Francisco

Where to stay in San Francisco

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