San Francisco, California Weather in August
United States · August climate averages and travel tips
Avg high23°C (74°F)
Avg low13°C (55°F)
Rainfall1 mm (0.0 in)
RatingExcellent 10/10
Expect warm days in San Francisco in August: the average high is 23°C (74°F) and the average low is 13°C (55°F). August is summer in United States. The month is very dry, with about 1 mm (0.0 in) of rain spread over 0 days, one of the driest months of the year. You get roughly 13.5 hours of daylight and a mix of sun and cloud.
Is August a good time to visit San Francisco?
Yes — August is one of the best months to visit San Francisco. The weather rates excellent (10/10) on our comfort score.
August weather at a glance
| Average high | 23°C (74°F) |
|---|---|
| Average low | 13°C (55°F) |
| Daily mean | 18°C (64°F) |
| Rainfall | 1 mm (0.0 in) |
| Rainy days (1 mm+) | 0 |
| Humidity | 74% |
| Cloud cover | 55% |
| Daylight | 13.5 hours |
| Est. sunshine | 6.7 hours/day |
| Wind | 8.4 km/h |
| vs July | 1°C warmer than July, with similar rainfall. |
What to pack for San Francisco in August
- T-shirts plus a light layer for the evening
San Francisco weather in other months
Jan14°C / 6°C109 mmFairFeb15°C / 7°C93 mmGoodMar16°C / 8°C90 mmGoodApr17°C / 8°C38 mmExcellentMay19°C / 10°C18 mmExcellentJun22°C / 11°C6 mmExcellentJul23°C / 12°C1 mmExcellentAug23°C / 13°C1 mmExcellentSep24°C / 13°C4 mmExcellentOct22°C / 12°C34 mmExcellentNov18°C / 9°C55 mmExcellentDec14°C / 7°C123 mmFair
← JulyBest time to visit San FranciscoSeptember →
Nearby in August
- Los Angeles, California32°C · 4 mm
- Las Vegas, Nevada40°C · 17 mm
- San Diego, California32°C · 6 mm
- Tijuana32°C · 6 mm
- Mexicali44°C · 9 mm
- Phoenix, Arizona40°C · 38 mm
Where else is good in August? See where to go in August.