Extreme Heat in the Southwest; Severe Weather in the Northern Plains; Heavy Rain in the East

Extreme heat continues across the Southwest as temperatures may top 120 degrees. The heat may expand across the West and south-central U.S. into the middle of the month. Severe thunderstorms capable of severe wind gusts and large hail will be the primary hazards today across the northern Plains into the upper Midwest. Rainfall could be locally heavy across the Eastern U.S. today. Read More >

Last Update: 858 AM PDT Mon Aug 3 2026

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San Francisco Bay Area/Monterey, CA Local Forecast Office

12NM SW San Francisco CA

Marine Zone Forecast

Today

W wind around 5 kt, backing to SW late this morning and early afternoon, veering to W late. Seas 5 to 8 ft. Wave detail: NW 7 ft at 10 seconds.

Tonight

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

Tue

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

Tue Night

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

Wed

S wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: NW 3 ft at 8 seconds.

Wed Night

SW wind around 5 kt. Seas around 3 ft. Wave detail: NW 3 ft at 9 seconds. Patchy fog after midnight.

Thu

W wind around 5 kt. Seas around 3 ft. Wave detail: NW 2 ft at 8 seconds. Patchy fog in the morning.

Thu Night

NW wind 5 to 10 kt, easing to around 5 kt after midnight. Seas around 3 ft. Wave detail: NW 2 ft at 8 seconds and SW 2 ft at 13 seconds.

Fri

NW wind around 5 kt, backing to W in the afternoon. Seas 3 to 4 ft. Wave detail: NW 3 ft at 7 seconds and SW 2 ft at 12 seconds.

Fri Night

NW wind 5 to 10 kt. Seas 3 to 4 ft, building to 4 to 6 ft after midnight. Wave detail: NW 4 ft at 7 seconds and SW 2 ft at 12 seconds.

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

in the deep water channel...mixed seas of 5 to 7 ft at 10 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 2.6 kt at 08:32 pm monday and 1.9 kt at 08:51 am tuesday.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 5 to 7 ft at 10 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 2.6 kt at 08:32 PM Monday and 1.9 kt at 08:51 AM Tuesday.