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San Francisco Bay Area/Monterey, CA Local Forecast Office

12NM SW San Francisco CA

Marine Zone Forecast

Tonight

W wind 5 to 10 kt, becoming NW 15 to 20 kt. Seas 5 to 7 ft, building to 6 to 9 ft after midnight. Wave detail: NW 8 ft at 10 seconds and S 3 ft at 13 seconds.

Sat

NW wind 15 to 20 kt, rising to 20 to 25 kt in the afternoon. Seas 7 to 10 ft. Wave detail: NW 9 ft at 11 seconds and S 2 ft at 13 seconds.

Sat Night

NW wind 20 to 25 kt. Seas 8 to 11 ft. Wave detail: NW 10 ft at 10 seconds and S 2 ft at 16 seconds.

Sun

NW wind 15 to 20 kt, easing to 5 to 10 kt in the afternoon. Seas 8 to 11 ft, subsiding to 6 to 9 ft in the afternoon. Wave detail: NW 10 ft at 11 seconds and S 2 ft at 17 seconds.

Sun Night

W wind 5 to 10 kt, backing to SE after midnight. Seas 5 to 8 ft. Wave detail: NW 7 ft at 11 seconds and S 2 ft at 17 seconds.

Columbus Day

E wind around 10 kt, veering to SW in the afternoon. Seas 5 to 8 ft. Wave detail: W 7 ft at 11 seconds and S 2 ft at 16 seconds.

Mon Night

NW wind 5 to 10 kt, easing to around 5 kt after midnight. Seas 4 to 6 ft. Wave detail: NW 5 ft at 10 seconds and S 3 ft at 16 seconds.

Tue

NW wind around 5 kt. Seas 4 to 5 ft. Wave detail: NW 4 ft at 9 seconds and S 3 ft at 18 seconds.

Tue Night

NW wind 5 to 10 kt, easing to around 5 kt after midnight. Seas 3 to 5 ft. Wave detail: NW 4 ft at 8 seconds and S 2 ft at 17 seconds.

Wed

NW wind around 5 kt. Seas 3 to 5 ft. Wave detail: NW 4 ft at 7 seconds and SW 2 ft at 16 seconds.

Wed Night

NW wind 5 to 10 kt, easing to around 5 kt after midnight. Seas 3 to 4 ft. Wave detail: NW 4 ft at 7 seconds and SW 2 ft at 15 seconds.

.....san francisco bar/fourfathom bank forecast.....

in the deep water channel...mixed seas of 4 to 6 ft at 17 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 3.6 kt at 04:29 pm friday and 2.2 kt at 04:48 am saturday.