2025 Compare Cities Climate:
Petaluma, CA vs Costa Mesa, CA

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Highlights
- Costa Mesa has 59.7% less rainy days than Petaluma.
- Costa Mesa has 5.4% more Sunny Days than Petaluma.
- On the BestPlaces comfort index, Costa Mesa scores 10.7% better than Petaluma
 Petaluma, CACosta Mesa, CAUnited States
 Rainfall  Unlock1238
 Snowfall0  Unlock28
 Precipitation  Unlock36106
 Sunny260  Unlock205
 Avg. July High  Unlock7886
 Avg. Jan. Low39  Unlock22
 Comfort Index (higher=better)  Unlock9.37
 UV Index4.9  Unlock4.3
 Elevation  Unlock982443
Reviews for Petaluma    16 Reviews

I agree with the low star reviews. Been here for 25 years, raised a family and seen everything turn to the left and worse. Weather is glorious, love the old Victorians  More

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We’ve lived here for 3 years and we love it. It has taken some time to grow on us. We moved from SF where we had lived over 15 years, we were not used to one year leases  More

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I’ve lived here a couple of years (after living in others parts of the Bay Area for 15+ years) and I love it! Great neighborhoods, friendly folks, good schools with  More

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Reviews for Costa Mesa    8 Reviews

Over 15 years ago

Costa mesa has awesome shopping but is way too crowded and I have had 3 cars stolen in the past 5 years along with countless break-ins and theft. Expensive. Close to  More

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Over 16 years ago

Costa Mesa has a near perfect climate . . . plenty of sun but rarely over 100 degrees (our house doesn't even have AC). Nestled between Newport Beach and Huntington  More

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We have a good amount of low-income, medium-income, and relatively high-income  More

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