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

Looking to travel to San Francisco in August? Here's what the weather might have in store during this month.

In San Francisco the weather in August is generally perfect, characterized by pleasant temperatures and almost no rainfall. Throughout the daytime, temperatures often hover around 22°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 14°C.

San Francisco in August usually receives almost no rainfall, averaging around 0.7 mm for the month. Based on our climate data of the past 30 years, about 1 day of rain are anticipated.

The city usually sees around 288 hours of sunlight, indicating many sunny days.

So this is a great month to visit if you prefer dry days with pleasant temperatures. May, June, July, August, September and October typically offer the most optimal weather. In contrast, December tends to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized San Francisco climate page with graphs.

 

San Francisco, monthly averages in August

Min TemperatureMin Temperature 14°C  
Max TemperatureMax Temperature 22°C  
Water TemperatureWater Temperature 14°C  
Chance of RainChance of Rain 3%  
PrecipitationPrecipitation 0.7 mm  
Rainy daysRainy days 1 day  
HumidityHumidity 75%  
WindspeedWindspeed 22 km/h  
SunshineSunshine 288 hours  
Percentage SunshinePercentage Sunshine 68%  

Where to go in the United States of America in August

Find out more about the weather in the United States of America in August and which places have the best weather conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in San Francisco in August?

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. With a water temperature of around 14°C there is no need to bring your swimwear.

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

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in San Francisco.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.