Point Forecast: 12NM SW San Francisco CA
 37.65N 122.61W (Elev. 0 ft)
Last Update: 2:01 am PDT Jul 17, 2026
Tabular Forecast
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Weather ElementsWeather/PrecipitationMarine Weather
Temperature (°F)
Dewpoint (°F)
Heat Index (°F)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)
Rain
Thunder
Fog
Swell Period
Swell Hgt/Dir
Swell 2 Period
Swell 2 Hgt/Dir
Wind Wave Height
Significant Wave Height
Freezing Spray

48-Hour Period Starting:       Back 2 Days  

Date07/1707/18
Hour (PDT)070809101112131415161718192021222300010203040506
Surface Wind (kt)10101010101010101010101010109988776666
Wind DirWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWNWWWNWWNWWWWWW
Gust
Significant Wave Height (ft) 666655555555555555555544
Swell Height (ft) 555544444444444444444433
Swell Dir300300300300290290290290290290300300300300300300290290290290290290290290
Swell Period (sec) 999999999988888888888888
Swell 2 Height (ft) 111122222222222222222211
Swell 2 Dir200200200200200200200200200200200200200200200200200200200200200200200200
Swell 2 Period (sec) 161616161616161616161818181818181616161616161717
Wind Wave Height (ft) 222222222222222211111111

Date07/19
Hour (PDT)070809101112131415161718192021222300010203040506
Surface Wind (kt)666677777788877766655544
Wind DirWWWWWWWWWWWWWWNWWNWWNWWNWWNWWNWWNWWNWWNWWW
Gust
Significant Wave Height (ft) 444444444444444444444444
Swell Height (ft) 333333333333333333333333
Swell Dir290290290290290290290290290290290290290290290290290290290290290290300300
Swell Period (sec) 888888888888888888888888
Swell 2 Height (ft) 111122222222222211111122
Swell 2 Dir200200200200200200200200200200210210210210210210210210210210210210200200
Swell 2 Period (sec) 171717171717171717171818181818181818181818181717
Wind Wave Height (ft) 111111111111111111111111

Additional Forecasts and Information
International System of UnitsForecast Discussion
Marine Point ForecastHourly Weather Graph
National Marine ForecastsTide Information
River Stage Summary24 Hour Precipitation Summary
NWS Office Map