Heavy Rainfall for Portions of the West and Central U.S.; Monitoring Fire Weather Conditions for New England

Tropical moisture continues to flow across portions of the Great Basin, desert Southwest and California. Isolated instances of flash flooding remains possible. Meanwhile, a storm and associated frontal boundary will focus showers and thunderstorms for the center of the nation. For New England, dry and breezy conditions could enhance favorable fire weather conditions. Read More >

Last Update: 237 PM PDT Fri Sep 19 2025

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San Francisco Bay Area/Monterey, CA Local Forecast Office

12NM SW San Francisco CA

Marine Zone Forecast

Tonight

W wind around 5 kt. Seas 3 to 5 ft. Wave detail: NW 4 ft at 10 seconds and S 2 ft at 14 seconds. Patchy dense fog late this evening and overnight.

Sat

W wind around 5 kt, rising to 5 to 10 kt in the afternoon. Seas 3 to 4 ft. Wave detail: NW 3 ft at 9 seconds and S 2 ft at 13 seconds. Patchy dense fog in the morning.

Sat Night

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

Sun

NW wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. Wave detail: NW 3 ft at 12 seconds and SW 2 ft at 13 seconds.

Sun Night

NW wind 15 to 20 kt. Seas 4 to 6 ft. Wave detail: NW 2 ft at 4 seconds, NW 5 ft at 8 seconds and SW 2 ft at 13 seconds.

Mon

NW wind 5 to 10 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 11 seconds and SW 2 ft at 12 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 11 seconds.

Tue

NW wind around 5 kt, backing to SW around 5 kt in the afternoon. Seas 4 to 6 ft. Wave detail: NW 5 ft at 10 seconds.

Tue Night

SW wind around 5 kt. Seas 3 to 5 ft. Wave detail: NW 4 ft at 9 seconds. A chance of showers in the evening.

Wed

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

Wed Night

W wind 5 to 10 kt. Seas 3 to 4 ft.

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

in the deep water channel...mixed seas of 3 to 5 feet at 12 seconds.

across the bar...mixed seas 5 to 7 feet at 12 seconds. Maximum ebb current of 2.5 kt at 03:51 pm friday and 2.5 kt at 04:07 am saturday.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 3 to 5 feet at 12 seconds. ACROSS THE BAR...Mixed seas 5 to 7 feet at 12 seconds. Maximum ebb current of 2.5 kt at 03:51 PM Friday and 2.5 kt at 04:07 AM Saturday.