Heavy Rainfall and Severe Thunderstorm Threats; Heat Risk Expands; Monitoring the Tropics

Flash flooding risks continue for portions of the Four Corners and Great Basin through today. Severe thunderstorms are outlooked from the eastern Great Lakes, southern New England into the mid-Atlantic through Tuesday. Heat risk increases and expands across the center of the nation and across the Ohio Valley and mid-Atlantic this week. Continue to closely monitor tropical development in the Gulf. Read More >

For More Weather Information:

San Francisco Bay Area/Monterey, CA Local Forecast Office

17NM S San Francisco CA

Marine Point Forecast

[NOTICE]

Tonight
W 8kt⇓
< 1ft
Tuesday
⇑SSW 7kt
< 1ft
Tuesday Night
SW 6kt⇓
< 1ft
Wednesday
S 8kt
< 1ft
Wednesday Night
WSW 6kt⇓
< 1ft
Thursday
⇑SSW 8kt
< 1ft
Thursday Night
Light Wind
< 1ft
Friday
⇑WNW 7kt
< 1ft
Friday Night
WNW 8kt⇓
< 1ft

Associated Zone Forecast which includes this point

Last Update: 1:26 pm PDT Aug 31, 2026
Forecast Valid: 4pm PDT Aug 31, 2026-6pm PDT Sep 7, 2026

View Nearby Observations

Detailed Forecast

Tonight

W wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Mostly cloudy. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.

Tuesday

Variable winds less than 5 kt becoming SSW 5 to 7 kt in the morning. Areas of fog before 8am. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.

Tuesday Night

SW wind around 6 kt becoming variable and less than 5 kt in the evening. Areas of fog after 8pm. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.

Wednesday

SSE wind 5 to 8 kt becoming SW in the afternoon. Partly sunny. N swell 0 ft. Wind waves 1 ft or less.

Wednesday Night

WSW wind around 6 kt becoming variable and less than 5 kt in the evening. Areas of fog after 8pm. N swell 0 ft. Wind waves 1 ft or less.

Thursday

Variable winds less than 5 kt becoming SSW 5 to 8 kt in the morning. A slight chance of rain. Areas of fog before 8am. N swell 0 ft. Wind waves 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Mostly cloudy. N swell 0 ft. Wind waves 1 ft or less.

Friday

Variable winds less than 5 kt becoming WNW 5 to 7 kt in the afternoon. Partly sunny. N swell 0 ft. Wind waves 1 ft or less.

Friday Night

WNW wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Mostly cloudy. N swell 0 ft. Wind waves 1 ft or less.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 3 to 5 ft at 8 seconds. ACROSS THE BAR...Swell can be more than twice as high across the bar than surrounding waters. Waves are also more prone to break, particularly during strong ebb currents. Maximum ebb current of 3.5 kt at 07:07 PM Monday and 2.0 kt at 07:43 AM Tuesday.

*Notices:

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.
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.