San Francisco weather in September
Mild and comfortable, and mostly sunny skies. Average highs of 21°C and lows of 14°C, with around 1 rainy day expected throughout the month.
✦ This is a recommended month to visit San Francisco. The combination of weather, atmosphere and experience is at its best.
Average high
21°C
Average low
14°C
Rainy days
1 days
Best months to visit
June, July, August, September, October
What to do in San Francisco in September
Whatever the weather, San Francisco rewards curious visitors. Here are some of the best ways to spend your time:
Golden Gate Bridge walks
Cable car rides
Alcatraz Island tour
Napa Valley wine trips
Redwood forest hikes
Neighbourhood food tours
What to pack for September
Light layers work well — T-shirts and shorts for the day, a light jacket for evenings. Comfortable walking shoes are a must. Bring a compact umbrella just in case.
Browse other months
January
14C
Cool, with occasional showers.
February
15C
Cool, with occasional showers.
March
15C
Cool, with occasional showers.
April
16C
Cool, with occasional showers.
May
17C
Cool, and mostly sunny skies.
Recommended
June
19C
Mild and comfortable, and mostly sunny skies.
Recommended
July
19C
Mild and comfortable, and mostly sunny skies.
Recommended
August
20C
Mild and comfortable, and mostly sunny skies.
Recommended
September (you are here)
21C
Mild and comfortable, and mostly sunny skies.
Recommended
October
21C
Mild and comfortable, and mostly sunny skies.
November
17C
Cool, with occasional showers.
December
14C
Cool, with some rainy days.
Book your September trip to San Francisco
Find hotels, tours and experiences for the perfect escape.
