What to pack for San Francisco in October
- t-shirts and light layers
- a light jacket for evenings
Humidity averages 72%; max daily wind around 25 km/h.
How October compares
Best months in San Francisco: April–October. See the full best time to visit San Francisco guide.
San Francisco in October: the details
In October, San Francisco sees average daytime highs of 21°C (69°F) and overnight lows of 13°C (55°F). Rainfall totals roughly 30 mm across 2.2 rainy days, and the sun shines about 9.8 hours per day with 11 hours of daylight mid-month. Relative humidity averages 72%.
In context: October is the warmest month of the year and the 6th-wettest in San Francisco. The sunniest month is June (13.2 h/day).
| Metric | October average |
|---|---|
| Daytime high | 21°C / 69°F |
| Overnight low | 13°C / 55°F |
| Rainfall | 30 mm over 2.2 rainy days |
| Sunshine | 9.8 h/day (11 h daylight) |
| Humidity | 72% |
| Travel score | 10.0 / 10 |
These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for San Francisco, United States (37.77, -122.42) — see our methodology. Actual conditions vary year to year.
Not set on San Francisco? Browse the best places to visit in October ranked by travel score.
Frequently asked questions
How hot is San Francisco in October?
Daytime highs in San Francisco in October average 21°C (69°F); nights drop to about 13°C.
Does it rain in San Francisco in October?
Expect around 2.2 rainy days and 30 mm of rainfall in October.
Is October a good time to visit San Francisco?
October is one of the best months to visit San Francisco. Overall travel score: 10.0/10. The best months are April–October.
Also good in October, near San Francisco
Where should you go next month?
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