2026 Compare Cities Climate:
South San Francisco, CA vs Vacaville, CA

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Highlights
- Vacaville has 16.1% more rainy days than South San Francisco.
- Vacaville has 0.4% more Sunny Days than South San Francisco.
- On the BestPlaces comfort index, Vacaville scores 2.4% worse than South San Francisco
 South San Francisco, CAVacaville, CAUnited States
 Rainfall  Unlock2538
 Snowfall0  Unlock28
 Precipitation  Unlock65106
 Sunny259  Unlock205
 Avg. July High  Unlock9386
 Avg. Jan. Low45  Unlock22
 Comfort Index (higher=better)  Unlock8.27
 UV Index4.9  Unlock4.3
 Elevation  Unlock1742443
Reviews for South San Francisco    5 Reviews

It's amazing, but many, many people, including people who live in SF, think that SSF is just a part of SF. Not true. We're right across the highway from SFO, which is  More

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Over 18 years ago

One frustrating thing about South City weather is the number of overcast & foggy days, as compared to other nearby cities on the Peninsula. You can literally look  More

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Over 20 years ago

Been living in bayview hunters point for about 12 years now. What I can say that it's a rough place to live, no one cares about us and the mayor of San Francisco  More

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Reviews for Vacaville    10 Reviews

I am a former Bay Area resident who moved to Vacaville to escape the ridiculous cost of living in the Bay. Now, if you are coming from the Bay, this place can seem more  More

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Over 7 years ago

It’s not a bad or dangerous place to live but I believe it doesn’t deserve the 5 stars most people are giving it. I have no idea where these people lived before moving  More

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If you enjoy a sophisticated urban environment, if you're single, if you're highly educated and appreciate access to continuing higher education at the post-graduate  More

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