2025 Compare Cities Climate:
Hilton Head Island, SC vs Sunnyvale, CA

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Highlights
- Sunnyvale has 68.0% less rainy days than Hilton Head Island.
- Sunnyvale has 20.9% more Sunny Days than Hilton Head Island.
- On the BestPlaces comfort index, Sunnyvale scores 23.9% better than Hilton Head Island
 Hilton Head Island, SCSunnyvale, CAUnited States
 Rainfall  Unlock1538
 Snowfall0  Unlock28
 Precipitation  Unlock63106
 Sunny215  Unlock205
 Avg. July High  Unlock8086
 Avg. Jan. Low39  Unlock22
 Comfort Index (higher=better)  Unlock8.87
 UV Index5.5  Unlock4.3
 Elevation  Unlock1252443
Reviews for Hilton Head Island    21 Reviews

Over 5 years ago

Unfortunately Beaufort county is full of transplanted northerners who do nothing but whine and cry about everything. They leave the north to come to the south and then  More

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We got a second home on Hilton Head Island 10 years ago to get away from the Canadian winter weather. It took about 3 days to realize this is where we want to be  More

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I have watched HHI change remarkably in the 40 years I have lived there. Development really started in 1979 and the early residents were explorers and drop outs who  More

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Reviews for Sunnyvale    14 Reviews

At this point, I would only recommend moving to silicon valley for the job market. Sure, the weather is great and the restaurants offer huge variety. But the costs of  More

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Like previous reviewer, tech company's tyranny over city gov and quality of living has negatively impacted a fantastic place to live. Climate, while super, is grossly  More

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I've lived here for 40 years. While the weather is fabulous, For the past ten years of high density housing mostly needed to house thousands of a young up coming tech  More

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