Worst time to visit San Francisco
Some months in San Francisco are clearly tougher for travel — extreme heat, cold, drenching rain, or peak storm season. Here's what to skip.
Months to avoid
| Month | Why |
|---|---|
| August | peak hurricane season |
| September | peak hurricane season |
| October | peak hurricane season |
What to expect in the worst months
August. This is peak hurricane season — disruptive weather can shut down flights, boats, and outdoor activities at short notice.
September. This is peak hurricane season — disruptive weather can shut down flights, boats, and outdoor activities at short notice.
October. This is peak hurricane season — disruptive weather can shut down flights, boats, and outdoor activities at short notice.
Better times to go
Better months: April (18°C, 6 rain days) · May (19°C, 3 rain days) · June (21°C, 1 rain days) · July (22°C, 0 rain days) · November (18°C, 7 rain days)
Better in the same region in August
If you're set on North America in August, these cities have more comfortable conditions in the same window:
If you still have to go — what to bring
- Storm season: Buy travel insurance with weather-disruption coverage, build 24–48 h flexibility into your itinerary, and follow the local meteorological agency on social.
Related San Francisco guides
The positive counterpart: which months are great and why.