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San Francisco weather in August (Riviera Nayarit, Mexico)

Planning a trip to San Francisco in August? Check out this comprehensive weather guide.

In August, San Francisco typically experiences very high temperatures and heavy rainfall. Daytime temperatures hover around 31°C, while nights can cool down to about 27°C. Typically, it's the hottest month of the year. Make sure to come prepared with breezy outfits. Whether you're out exploring or just lounging, being prepared can make your experience in this warm month much more enjoyable.

San Francisco in August usually receives heavy rainfall, averaging around 236 mm for the month. Rain is expected on roughly 19 days.

If you're looking for dry conditions and comfortable temperatures, August may not be the ideal month to visit San Francisco. January, February, March, April, May, November and December typically offer the most agreeable circumstances. On the other hand, August and September tend to be characterized by conditions that may not be as optimal.

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 27°C  
Max TemperatureMax Temperature 31°C  
Chance of RainChance of Rain 62%  
PrecipitationPrecipitation 236 mm  
Rainy daysRainy days 19 days  
HumidityHumidity 70% *  
* Data from: Puerto Vallarta, Mexico (37 KM, 23 Miles).

Where to go in Mexico in August

Find out more about the weather in Mexico in August and which places have the best weather conditions in this month.

Map not visible? Whoops sorry! Please refresh the page.
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?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in August.

Cycling
7/10
Walking
7/10
Camping
7/10
Outdoor sports
7/10

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 Mexico? On this website you can find historical weather averages for many cities in Mexico. 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.