2025 Compare Cities Climate:
Mill Valley, CA vs South San Francisco, CA

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Highlights
- South San Francisco has 46.6% less rainy days than Mill Valley.
- South San Francisco has 1.6% more Sunny Days than Mill Valley.
- On the BestPlaces comfort index, South San Francisco scores 0.0% worse than Mill Valley
 Mill Valley, CASouth San Francisco, CAUnited States
 Rainfall  Unlock2238
 Snowfall0  Unlock28
 Precipitation  Unlock68106
 Sunny255  Unlock205
 Avg. July High  Unlock6786
 Avg. Jan. Low43  Unlock22
 Comfort Index (higher=better)  Unlock8.47
 UV Index5.2  Unlock4.3
 Elevation  Unlock162443
Reviews for Mill Valley    7 Reviews

I lived in southern Marin County for 20 years and lived it. Just moved  More

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Over 15 years ago

Mill Valley is a perfect place to live and raise a family, if you don't mind a cost of living index of 233. Don't distress - go mountain biking or hiking with  More

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Over 16 years ago

Good weather all year around. Great public schools. Cost of living very high. Crime low wonderful outdoor activities nearby like hiking, beaches,  More

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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 17 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 19 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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