Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

For More Weather Information:

San Francisco Bay Area/Monterey, CA Local Forecast Office

27NM S San Francisco CA

Marine Point Forecast

[NOTICE]

Tonight
NW 6kt⇓
3ft
Saturday
⇑NW 9kt
3ft
Saturday Night
NW 8kt
4ft
Sunday
NW 8kt
4ft
Sunday Night
NW 7kt⇓
4ft
Monday
⇑W 6kt
4ft
Monday Night
Light Wind
3ft
Tuesday
Light Wind
4ft
Tuesday Night
WNW 6kt⇓
4ft

Associated Zone Forecast which includes this point

Last Update: 1:26 pm PDT Sep 18, 2026
Forecast Valid: 9pm PDT Sep 18, 2026-6pm PDT Sep 25, 2026

View Nearby Observations

Detailed Forecast

Tonight

NW wind around 6 kt becoming variable and less than 5 kt after midnight. Mostly cloudy. Mixed swell...WNW 4 ft at 7 seconds and SSW 1 ft at 14 seconds. Wind waves around 1 ft.

Saturday

Variable winds less than 5 kt becoming NW 5 to 9 kt in the afternoon. Mostly cloudy. Mixed swell...WNW 4 ft at 8 seconds and SSW 1 ft at 14 seconds. Wind waves 1 ft or less.

Saturday Night

NW wind 5 to 8 kt. Cloudy. Mixed swell...WNW 4 ft at 8 seconds and SSW 1 ft at 13 seconds building to at 17 seconds . Wind waves around 1 ft.

Sunday

NW wind 6 to 8 kt. Cloudy. Mixed swell...WNW 4 ft and SSW 1 ft. Wind waves around 1 ft.

Sunday Night

NW wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Cloudy. Mixed swell...WNW 4 ft and SSW 2 ft. Wind waves around 1 ft.

Monday

Variable winds less than 5 kt becoming W around 6 kt in the afternoon. Mostly cloudy. Mixed swell...WNW 4 ft and SSW 2 ft. Wind waves 1 ft or less.

Monday Night

Variable winds 5 kt or less. Patchy fog after 11pm. Mixed swell...WNW 4 ft and SSW 1 ft. Wind waves 1 ft or less.

Tuesday

Variable winds 5 kt or less. Patchy fog before 11am. Mixed swell...WNW 4 ft and SSW 1 ft. Wind waves 1 ft or less.

Tuesday Night

WNW wind around 6 kt becoming variable and less than 5 kt in the evening. Patchy fog between 11pm and midnight. Mixed swell...WNW 5 ft and SSW 1 ft. Wind waves 1 ft or less.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 2 to 4 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 1.6 kt at 09:43 PM Friday and 0.8 kt at 12:08 PM Saturday.

*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.