2025 Compare Cities Climate:
San Luis Obispo, CA vs Castro Valley, CA

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Highlights
- Castro Valley has 6.5% more rainy days than San Luis Obispo.
- Castro Valley has 9.1% less Sunny Days than San Luis Obispo.
- On the BestPlaces comfort index, Castro Valley scores 2.3% worse than San Luis Obispo
 San Luis Obispo, CACastro Valley, CAUnited States
 Rainfall  Unlock2138
 Snowfall0  Unlock28
 Precipitation  Unlock66106
 Sunny287  Unlock205
 Avg. July High  Unlock7686
 Avg. Jan. Low43  Unlock22
 Comfort Index (higher=better)  Unlock8.67
 UV Index5.3  Unlock4.3
 Elevation  Unlock1612443
Reviews for San Luis Obispo    21 Reviews

MY FIANCEE AND I ARE LOOKING TO MOVE TO SLO FOR RETIREMENT ( NEXT MONTH ) WE ARE BOTH ARTISTS AND HOPE OUR TALENT WILL HELP WITH COST OF LIVING IN SLO!!! ANY  More

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Over 10 years ago

In almost any season of the year in San Luis Obispo, you’ll find the sun shining and the temperature hitting around 70º at some point in the day. With the temperature  More

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San Luis Obispo and surrounding areas are beautiful, great weather, beaches, farms markets, a downtown area full of some of the best bars and restaurants, wine country,  More

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Reviews for Castro Valley    7 Reviews

CURMUDGEON - THANK YOU for your post. The most important part of your comment is your second paragraph. "Hodge-Podge" is the correct word for a lot of Castro  More

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Over 11 years ago

Kind of rural but close to Oakland and San  More

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Castro Valley is the largest unincorporated "city" in the Bay Area. Over the years, several attempts have been made to incorporate, but they have all been defeated at  More

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