City and County of San Francisco (San Francisco)
August
Weather in City and County of San Francisco, California for August 2025
Your guide to City and County of San Francisco weather in August - trends and predictions
The forecast for the first days of August 2025 in City and County of San Francisco predicts temperatures to be around 20 °F, close to the historical average.
In general, the average temperature in City and County of San Francisco at the beginning of August is 20.6 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 22.1 °F by the end of August.
Precipitation in City and County of San Francisco during August is a rare event, with an average of fewer than 2 rainy days.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
31
Dry days
0
Rainy days
0
Snow days
21°/13°
Temperatures
17 km/h
Avg max wind
77 %
Avg humidity
City and County of San Francisco Weather August
Move between months or click on a day
Temperatures trend during August in City and County of San Francisco
See the weather trend as well as the moving average line
August weather in City and County of San Francisco day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Fog | 16° /14° | 0 mm | 2.4 | |
| Aug. 2 | Fog | 19° /13° | 0 mm | 2.5 | |
| Aug. 3 |  Sunny | 20° /14° | 0 mm | 0 | |
| Aug. 4 | Sunny | 19° /15° | 0 mm | 5 | |
| Aug. 5 | Sunny | 23° /14° | 0 mm | 5 | |
| Aug. 6 | Sunny | 24° /16° | 0 mm | 5 | |
| Aug. 7 |  Partly cloudy | 23° /17° | 0 mm | 5 | |
| Aug. 8 | Sunny | 21° /14° | 0 mm | 5 | |
| Aug. 9 | Sunny | 20° /15° | 0 mm | 5 | |
| Aug. 10 | Sunny | 21° /15° | 0 mm | 5 | |
| Aug. 11 |  Patchy rain possible | 21° /15° | 0.1 mm | 4 | |
| Aug. 12 | Partly cloudy | 20° /15° | 0 mm | 5 | |
| Aug. 13 | Sunny | 19° /15° | 0 mm | 5 | |
| Aug. 14 | Partly cloudy | 22° /14° | 0 mm | 6 | |
| Aug. 15 | Sunny | 23° /13° | 0 mm | 6 | |
| Aug. 16 | Sunny | 23° /13° | 0 mm | 6 | |
| Aug. 17 | Sunny | 22° /13° | 0 mm | 6 | |
| Aug. 18 | Sunny | 20° /12° | 0 mm | 5 | |
| Aug. 19 | Sunny | 22° /12° | 0 mm | 6 | |
| Aug. 20 | Sunny | 23° /13° | 0 mm | 6 | |
| Aug. 21 | Sunny | 20° /13° | 0.3 mm | 5 | |
| Aug. 22 | Sunny | 22° /13° | 0 mm | 5 | |
| Aug. 23 | Sunny | 22° /13° | 0 mm | 5 | |
| Aug. 24 | Partly cloudy | 21° /13° | 0 mm | 5 | |
| Aug. 25 | Sunny | 21° /12° | 0 mm | 6 | |
| Aug. 26 | Sunny | 23° /13° | 0 mm | 6 | |
| Aug. 27 | Sunny | 23° /13° | 0 mm | 6 | |
| Aug. 28 | Sunny | 23° /13° | 0 mm | 6 | |
| Aug. 29 | Sunny | 22° /13° | 0 mm | 6 | |
| Aug. 30 | Sunny | 22° /13° | 0 mm | 6 | |
| Aug. 31 | Sunny | 21° /12° | 0 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for City and County of San Francisco in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the City and County of San Francisco forecast closer to your planned date for the most up-to-date weather information.
Change Month
City and County of San Francisco in August - FAQ
What are the expected maximum and minimum temperatures in City and County of San Francisco during August?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in City and County of San Francisco during August?
Rainfall in City and County of San Francisco during August is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 0 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in City and County of San Francisco during August?
The average wind speed in City and County of San Francisco during August is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in City and County of San Francisco
Explore the daily rainfall trends and prepare for City and County of San Franciscos August weather 💧
UV exposure in City and County of San Francisco during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
Top locations in City and County of San Francisco
Select a location for an accurate weather forecast
More Locations Quick links
More City and County of San Francisco weather pages
You are here
Where is City and County of San Francisco?Get accurate weather forecasts for City and County of San Francisco, located at latitude 37.775 and longitude -122.419. Stay updated with localized weather information tailored for City and County of San Francisco.
Found a mistake?
We appreciate your attention to details. Tell us here.