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

27NM W San Francisco CA

Marine Point Forecast

[NOTICE]

    • Late Afternoon

      Late Afternoon:SSE wind around 25 kt, with gusts as high as 31 kt. Showers and possibly a thunderstorm. Mixed swell...WNW 6 ft at 12 seconds and S 5 ft at 8 seconds. Wind waves around 6 ft.

      SSE 25kt
      10ft

      Gale Warning
      Gale Warning

    • Tonight

      Tonight:SSE wind 33 to 38 kt, with gusts as high as 49 kt. Showers and possibly a thunderstorm. Mixed swell...NW 7 ft at 11 seconds and S 12 ft at 9 seconds. Wind waves 6 to 7 ft.

      SSE 38kt
      Waves Building16ft

      Gale Warning
      Gale Warning

    • Christmas Day

      Christmas Day:SW wind 29 to 31 kt becoming S in the afternoon. Winds could gust as high as 38 kt. Showers, with thunderstorms also possible after 1pm. Mixed swell...WNW 4 ft at 11 seconds and SSW 11 to 13 ft at 10 seconds. Wind waves 5 to 6 ft.

      SW 31kt
      13-15ft

      Gale Warning
      Gale Warning

    • Thursday Night

      Thursday Night:SSW wind 27 to 33 kt, with gusts as high as 39 kt. Showers and possibly a thunderstorm. Mixed swell...W 9 ft and SW 13 to 15 ft. Wind waves around 5 ft.

      SSW 33kt
      17ft

      Gale Warning
      Gale Warning

    • Friday

      Friday:S wind 14 to 22 kt. Showers and possibly a thunderstorm. Mixed swell...W 14 ft and SW 7 to 8 ft. Wind waves around 4 ft.

      S 22kt
      16-17ft

    • Friday Night

      Friday Night:W wind around 13 kt becoming NW after midnight. Showers likely before 7pm, then showers likely and possibly a thunderstorm between 7pm and 10pm, then a chance of showers and thunderstorms after 10pm. Mixed swell...W 10 to 13 ft and SW 6 ft. Wind waves around 2 ft.

      WNW 13kt
      12-14ft

    • Saturday

      Saturday:N wind 12 to 16 kt. A chance of showers, mainly before 10am. Mixed swell...NW 8 to 11 ft and SSW 2 to 3 ft. Wind waves around 2 ft.

      N 16kt
      12ftWaves Subsiding

    • Saturday Night

      Saturday Night:N wind 6 to 9 kt. Mostly clear. Mixed swell...WNW 6 to 7 ft and SSW 1 to 2 ft. Wind waves around 1 ft.

      N 9kt
      6-7ft

    • Sunday

      Sunday:NE wind around 6 kt. Mostly sunny. Mixed swell...NW 4 to 5 ft and S 1 ft. Wind waves around 1 ft.

      NE 6kt
      5ft


Associated Zone Forecast which includes this point

Last Update: 4:56 pm PST Dec 24, 2025
Forecast Valid: 5pm PST Dec 24, 2025-6pm PST Dec 31, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM PST THIS AFTERNOON...

Late Afternoon
SSE wind around 25 kt, with gusts as high as 31 kt. Showers and possibly a thunderstorm. Mixed swell...WNW 6 ft at 12 seconds and S 5 ft at 8 seconds. Wind waves around 6 ft.
Tonight
SSE wind 33 to 38 kt, with gusts as high as 49 kt. Showers and possibly a thunderstorm. Mixed swell...NW 7 ft at 11 seconds and S 12 ft at 9 seconds. Wind waves 6 to 7 ft.
Christmas Day
SW wind 29 to 31 kt becoming S in the afternoon. Winds could gust as high as 38 kt. Showers, with thunderstorms also possible after 1pm. Mixed swell...WNW 4 ft at 11 seconds and SSW 11 to 13 ft at 10 seconds. Wind waves 5 to 6 ft.
Thursday Night
SSW wind 27 to 33 kt, with gusts as high as 39 kt. Showers and possibly a thunderstorm. Mixed swell...W 9 ft and SW 13 to 15 ft. Wind waves around 5 ft.
Friday
S wind 14 to 22 kt. Showers and possibly a thunderstorm. Mixed swell...W 14 ft and SW 7 to 8 ft. Wind waves around 4 ft.
Friday Night
W wind around 13 kt becoming NW after midnight. Showers likely before 7pm, then showers likely and possibly a thunderstorm between 7pm and 10pm, then a chance of showers and thunderstorms after 10pm. Mixed swell...W 10 to 13 ft and SW 6 ft. Wind waves around 2 ft.
Saturday
N wind 12 to 16 kt. A chance of showers, mainly before 10am. Mixed swell...NW 8 to 11 ft and SSW 2 to 3 ft. Wind waves around 2 ft.
Saturday Night
N wind 6 to 9 kt. Mostly clear. Mixed swell...WNW 6 to 7 ft and SSW 1 to 2 ft. Wind waves around 1 ft.
Sunday
NE wind around 6 kt. Mostly sunny. Mixed swell...NW 4 to 5 ft and S 1 ft. Wind waves around 1 ft.

*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: 37.7°N 122.97°W
Last Update: 4:56 pm PST Dec 24, 2025
Forecast Valid: 5pm PST Dec 24, 2025-6pm PST Dec 31, 2025
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