2026 Compare Cities Climate:
Sammamish, WA vs Union City, CA

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Highlights
- Union City has 68.5% less rainy days than Sammamish.
- Union City has 71.0% more Sunny Days than Sammamish.
- On the BestPlaces comfort index, Union City scores 23.9% better than Sammamish
 Sammamish, WAUnion City, CAUnited States
 Rainfall  Unlock1738
 Snowfall6  Unlock28
 Precipitation  Unlock64106
 Sunny155  Unlock205
 Avg. July High  Unlock7686
 Avg. Jan. Low35  Unlock22
 Comfort Index (higher=better)  Unlock8.87
 UV Index2.6  Unlock4.3
 Elevation  Unlock662443
Reviews for Sammamish    4 Reviews

Over 11 years ago

Seattle has beautiful greenery and gorgeous mountain views. It is quite dark and gloomy for much of the late fall into spring...or July 5th as locals know quite well. I  More

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Housing seems to be very overpriced, however after all things considered, it is well worth it. (Family of  More

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Sammamish is honestly a wonderful place to live. It's perfect for a family who wants a comfortable entertaining suburban life. The schools are pretty great, as I can say  More

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Reviews for Union City    1 Reviews

Over 20 years ago

Hi, I am looking for a small, friendly town with low crime and friendly people, outdoor activites, mellow, etc. (in the bay area). I am currently hoping to move to  More

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