2025 Compare Cities Climate:
Half Moon Bay, CA vs Altadena, CA

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Highlights
- Altadena has 5.1% less rainy days than Half Moon Bay.
- Altadena has 10.8% more Sunny Days than Half Moon Bay.
- On the BestPlaces comfort index, Altadena scores 9.6% better than Half Moon Bay
 Half Moon Bay, CAAltadena, CAUnited States
 Rainfall  Unlock2338
 Snowfall0  Unlock28
 Precipitation  Unlock37106
 Sunny259  Unlock205
 Avg. July High  Unlock8686
 Avg. Jan. Low42  Unlock22
 Comfort Index (higher=better)  Unlock9.17
 UV Index4.9  Unlock4.3
 Elevation  Unlock13582443
Reviews for Half Moon Bay    3 Reviews

HMB has one of the best climates in the world. It also has some very good restaurants. You have the ocean on one side and scenic foothills to the east.It would be heaven  More

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Over 19 years ago

Rural coastal living in a great community close to San Francisco and Silicon  More

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Over 20 years ago

I lived in HMB for 17 years and loved (almost) every minute there. Beautiful hills to the east of the town and the Pacific ocean to the west. Close to San Francisco,  More

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Reviews for Altadena    1 Reviews

I live just above the 1500 foot elevation at the edge of the San Gabriel Mountains in the L.A. suburb of Altadena--just above Pasadena. We're above the low morning fog  More

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