Areas of Showers and Thunderstorms to Start the Work Week

Areas of rain and thunderstorms are forecast Monday across the central and eastern states. Some mixed rain and snow is possible in the high Sierra Mountains. Heavy to excessive rain may bring flooding in the central Appalachians. Read More >

Last Update: 840 PM PDT Sun Sep 20 2026

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San Francisco Bay Area/Monterey, CA Local Forecast Office

12NM SW San Francisco CA

Marine Zone Forecast

Tonight

NW wind 5 to 10 kt. Seas 3 to 5 ft. Wave detail: NW 4 ft at 8 seconds and SW 2 ft at 18 seconds.

Mon

W wind 5 to 10 kt. Seas 3 to 5 ft. Wave detail: NW 4 ft at 8 seconds and SW 2 ft at 17 seconds.

Mon Night

W wind 5 to 10 kt. Seas 3 to 5 ft. Wave detail: NW 5 ft at 8 seconds and SW 2 ft at 17 seconds.

Tue

NW wind 5 to 10 kt. Seas 4 to 6 ft. Wave detail: W 5 ft at 9 seconds and S 2 ft at 15 seconds.

Tue Night

NW wind 10 to 15 kt. Seas 4 to 6 ft, building to 5 to 8 ft after midnight. Wave detail: NW 7 ft at 10 seconds and S 2 ft at 16 seconds.

Wed

NW wind 5 to 10 kt. Seas 5 to 7 ft. Wave detail: NW 7 ft at 11 seconds and S 2 ft at 15 seconds.

Wed Night

NW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 5 to 7 ft. Wave detail: NW 6 ft at 10 seconds and S 2 ft at 15 seconds.

Thu

NW wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Seas 4 to 6 ft. Wave detail: NW 5 ft at 10 seconds and SW 2 ft at 14 seconds.

Thu Night

NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 9 seconds and S 2 ft at 13 seconds.

Fri

NW wind 10 to 15 kt. Seas 3 to 5 ft. Wave detail: NW 4 ft at 9 seconds and S 2 ft at 13 seconds.

Fri Night

NW wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Seas 3 to 5 ft, building to 5 to 7 ft after midnight.

.....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 1.2 kt at 12:54 am monday and 1.2 kt at 01:54 pm monday.

.....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 1.2 kt at 12:54 AM Monday and 1.2 kt at 01:54 PM Monday.