Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Hazardous Weather Conditions

Last Update: 836 AM PDT Sun Apr 12 2026

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San Francisco Bay Area/Monterey, CA Local Forecast Office

12NM SW San Francisco CA

Marine Zone Forecast

Today

SW wind 20 to 25 kt with gusts up to 30 kt, becoming W 10 to 15 kt. Seas 7 to 10 ft. Wave detail: W 9 ft at 10 seconds. showers likely. A chance of tstms until late afternoon, then a slight chance of tstms late.

Tonight

W wind 10 to 15 kt, becoming NW around 5 kt after midnight. Seas 7 to 9 ft, subsiding to 5 to 7 ft after midnight. Wave detail: W 8 ft at 10 seconds and SW 2 ft at 15 seconds. A slight chance of showers in the evening.

Mon

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

Mon Night

NW wind 15 to 20 kt. Seas 5 to 7 ft. Wave detail: NW 6 ft at 9 seconds and SW 2 ft at 15 seconds.

Tue

NW wind 15 to 20 kt, easing to 10 to 15 kt in the afternoon. Seas 4 to 6 ft. Wave detail: NW 6 ft at 8 seconds and SW 2 ft at 14 seconds.

Tue Night

NW wind 15 to 20 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 8 seconds and SW 2 ft at 14 seconds.

Wed

NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 8 seconds.

Wed Night

NW wind 10 to 15 kt, rising to 15 to 20 kt after midnight. Seas 3 to 4 ft. Wave detail: NW 4 ft at 7 seconds.

Thu

NW wind 20 to 25 kt, easing to 15 to 20 kt in the afternoon. Seas 5 to 7 ft. Wave detail: NW 6 ft at 7 seconds.

Thu Night

NW wind 20 to 25 kt, easing to 15 to 20 kt after midnight. Seas 5 to 7 ft. Wave detail: NW 7 ft at 10 seconds.

winds and seas higher in and near tstms.

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

in the deep water channel...mixed seas of 6 to 8 feet at 6 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 1.7 kt at 01:34 pm sunday and 1.9 kt at 02:21 am monday.