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San FranciscoUSCalifornia, United States | ||
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San Francisco
DetailsHeat Seeker Score
Heat Seeker Score is a composite score designed for those who crave hot, sunny weather with minimal rainfall. It prioritizes high temperatures and abundant sunshine.
Use the detailed page for charts, component scores, and weather inputs behind every monthly ranking.
Calculations are based on the last 8 years of historical weather data.
Please or to view seasonal weather descriptions.
Authentication helps protect our service from automated bots that generate excessive traffic and high costs to AI providers for generating these detailed weather descriptions. We appreciate your understanding as we work to maintain a sustainable service.
Maximum Temperatures
| Period | San Francisco |
|---|---|
| Dec 1 | 58.3°F |
| Dec 8 | 57.2°F |
| Dec 15 | 56.5°F |
| Dec 22 | 56.1°F |
| Jan 1 | 56.3°F |
| Jan 8 | 57.2°F |
| Jan 15 | 57.2°F |
| Jan 22 | 57.7°F |
| Feb 1 | 58.5°F |
| Feb 8 | 58.1°F |
| Feb 15 | 56.7°F |
| Feb 22 | 57.4°F |
| Average | 57.3°F |
Minimum Temperatures
| Period | San Francisco |
|---|---|
| Dec 1 | 48.7°F |
| Dec 8 | 47.8°F |
| Dec 15 | 47.5°F |
| Dec 22 | 47.8°F |
| Jan 1 | 47.7°F |
| Jan 8 | 47.5°F |
| Jan 15 | 48.0°F |
| Jan 22 | 47.1°F |
| Feb 1 | 47.1°F |
| Feb 8 | 47.5°F |
| Feb 15 | 46.2°F |
| Feb 22 | 46.9°F |
| Average | 47.5°F |
Please or to view seasonal weather descriptions.
Authentication helps protect our service from automated bots that generate excessive traffic and high costs to AI providers for generating these detailed weather descriptions. We appreciate your understanding as we work to maintain a sustainable service.
Sunny Weather
| Period | San Francisco |
|---|---|
| Dec 1 | 3.9 hours/day |
| Dec 8 | 3.8 hours/day |
| Dec 15 | 3.7 hours/day |
| Dec 22 | 3.1 hours/day |
| Jan 1 | 3.5 hours/day |
| Jan 8 | 5.0 hours/day |
| Jan 15 | 4.0 hours/day |
| Jan 22 | 4.8 hours/day |
| Feb 1 | 5.0 hours/day |
| Feb 8 | 5.2 hours/day |
| Feb 15 | 5.4 hours/day |
| Feb 22 | 5.8 hours/day |
| Average | 4.4 hours/day |
Precipitation Levels
| Period | San Francisco |
|---|---|
| Dec 1 | 0.1in |
| Dec 8 | 0.2in |
| Dec 15 | 0.2in |
| Dec 22 | 0.3in |
| Jan 1 | 0.2in |
| Jan 8 | 0.1in |
| Jan 15 | 0.1in |
| Jan 22 | 0.1in |
| Feb 1 | 0.2in |
| Feb 8 | 0.2in |
| Feb 15 | 0.2in |
| Feb 22 | 0.1in |
| Average | 0.2in |
Wind Speed
| Period | San Francisco |
|---|---|
| Dec 1 | 8.3mph |
| Dec 8 | 9.3mph |
| Dec 15 | 9.0mph |
| Dec 22 | 10.6mph |
| Jan 1 | 11.1mph |
| Jan 8 | 10.3mph |
| Jan 15 | 8.9mph |
| Jan 22 | 8.9mph |
| Feb 1 | 11.3mph |
| Feb 8 | 11.1mph |
| Feb 15 | 12.2mph |
| Feb 22 | 11.4mph |
| Average | 10.2mph |
Humidity
| Period | San Francisco |
|---|---|
| Dec 1 | 73.6% |
| Dec 8 | 72.2% |
| Dec 15 | 74.3% |
| Dec 22 | 75.9% |
| Jan 1 | 77.7% |
| Jan 8 | 75.2% |
| Jan 15 | 74.3% |
| Jan 22 | 73.8% |
| Feb 1 | 71.3% |
| Feb 8 | 72.5% |
| Feb 15 | 71.9% |
| Feb 22 | 71.8% |
| Average | 73.7% |
Please or to view seasonal weather descriptions.
Authentication helps protect our service from automated bots that generate excessive traffic and high costs to AI providers for generating these detailed weather descriptions. We appreciate your understanding as we work to maintain a sustainable service.
Sunrise Time
| Period | San Francisco |
|---|---|
| Dec 1 | 7:10 |
| Dec 8 | 7:16 |
| Dec 15 | 7:20 |
| Dec 22 | 7:24 |
| Jan 1 | 7:26 |
| Jan 8 | 7:25 |
| Jan 15 | 7:23 |
| Jan 22 | 7:18 |
| Feb 1 | 7:11 |
| Feb 8 | 7:04 |
| Feb 15 | 6:55 |
| Feb 22 | 6:46 |
| Average | 7:12 |
Sunset Time
| Period | San Francisco |
|---|---|
| Dec 1 | 16:50 |
| Dec 8 | 16:51 |
| Dec 15 | 16:53 |
| Dec 22 | 16:58 |
| Jan 1 | 17:04 |
| Jan 8 | 17:11 |
| Jan 15 | 17:18 |
| Jan 22 | 17:28 |
| Feb 1 | 17:37 |
| Feb 8 | 17:45 |
| Feb 15 | 17:52 |
| Feb 22 | 18:01 |
| Average | 17:18 |
Useful Day Length
| Period | San Francisco |
|---|---|
| Dec 1 | 9:41 hours |
| Dec 8 | 9:35 hours |
| Dec 15 | 9:33 hours |
| Dec 22 | 9:34 hours |
| Jan 1 | 9:38 hours |
| Jan 8 | 9:46 hours |
| Jan 15 | 9:55 hours |
| Jan 22 | 10:10 hours |
| Feb 1 | 10:26 hours |
| Feb 8 | 10:41 hours |
| Feb 15 | 10:52 hours |
| Feb 22 | 11:01 hours |
| Average | 10:06 hours |
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