National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

12NM SSE San Francisco CA

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:SSW wind 12 to 22 kt, with gusts as high as 34 kt. Showers and possibly a thunderstorm before 8pm, then showers likely. Some of the storms could be severe. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.

      SSW 22kt
      < 1ft

    • Friday

      Friday:S wind around 13 kt, with gusts as high as 20 kt. Showers likely, with thunderstorms also possible after 4pm. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.

      S 13kt
      < 1ft

    • Friday Night

      Friday Night:SSW wind 5 to 7 kt becoming W after midnight. A chance of showers and thunderstorms. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.

      SSW 7kt
      < 1ft

    • Saturday

      Saturday:N wind around 7 kt. A slight chance of showers. N swell 0 ft. Wind waves 1 ft or less.

      N 7kt
      < 1ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. Mostly clear. N swell 0 ft. Wind waves 1 ft or less.

      Light Wind
      < 1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming ENE around 6 kt in the morning. Mostly sunny. N swell 0 ft. Wind waves 1 ft or less.

      ⇑ENE 6kt
      < 1ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. Mostly clear. N swell 0 ft. Wind waves 1 ft or less.

      Light Wind
      < 1ft

    • Monday

      Monday:ENE wind 6 to 8 kt. Sunny. N swell 0 ft. Wind waves 1 ft or less.

      ENE 8kt
      < 1ft

    • Monday Night

      Monday Night:NE wind around 6 kt. Mostly clear. . Wind waves 1 ft or less.

      NE 6kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:44 pm PST Dec 25, 2025
Forecast Valid: 6pm PST Dec 25, 2025-6pm PST Jan 1, 2026

View Nearby Observations

Detailed Forecast

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

Tonight
SSW wind 12 to 22 kt, with gusts as high as 34 kt. Showers and possibly a thunderstorm before 8pm, then showers likely. Some of the storms could be severe. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
Friday
S wind around 13 kt, with gusts as high as 20 kt. Showers likely, with thunderstorms also possible after 4pm. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
Friday Night
SSW wind 5 to 7 kt becoming W after midnight. A chance of showers and thunderstorms. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
Saturday
N wind around 7 kt. A slight chance of showers. N swell 0 ft. Wind waves 1 ft or less.
Saturday Night
Variable winds 5 kt or less. Mostly clear. N swell 0 ft. Wind waves 1 ft or less.
Sunday
Variable winds less than 5 kt becoming ENE around 6 kt in the morning. Mostly sunny. N swell 0 ft. Wind waves 1 ft or less.
Sunday Night
Variable winds 5 kt or less. Mostly clear. N swell 0 ft. Wind waves 1 ft or less.
Monday
ENE wind 6 to 8 kt. Sunny. N swell 0 ft. Wind waves 1 ft or less.
Monday Night
NE wind around 6 kt. Mostly clear. . Wind waves 1 ft or less.

Winds and waves higher in and near tstms.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 37.58°N 122.33°W
Last Update: 2:44 pm PST Dec 25, 2025
Forecast Valid: 6pm PST Dec 25, 2025-6pm PST Jan 1, 2026
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