✨September is an excellent time to visit San Francisco — expect pleasantly warm days around 70°F (lows near 58°F), very little rain, abundant sunshine.
September Climate
Why This Matches
Based on your September search preferences
Avg highs of 70°F
1 rain days expected
10.9 hours of sunshine per day
77% average humidity
Year-Round Climate
Temperature
Sunshine
Rainfall
Best Time to Visit San Francisco
The best time to visit San Francisco is April–October, with highs around 63°F, minimal rainfall, 12+ hours of daily sunshine.
What to Pack
Based on September conditions in San Francisco
Light layers — t-shirts with a light jacket for evenings
High SPF sunscreen, sunglasses, and a hat — strong sun expected
Comfortable walking shoes — you'll cover a lot of ground
September in San Francisco
Flight prices unavailable for this route
Nightly hotel rates
Budget
$78–$143
Mid-Range
$208–$364
Luxury
$455–$975
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About San Francisco
A fog-kissed city perched on a peninsula, where the Golden Gate Bridge, Chinatown, and Victorian painted ladies share the skyline. San Francisco delivers world-class sourdough, tech-culture energy, and coastal hikes that make you forget you are in a city.
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