Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Last Update: 309 AM PDT Thu Aug 27 2026

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San Francisco Bay Area/Monterey, CA Local Forecast Office

12NM SW San Francisco CA

Marine Zone Forecast

Today

NW wind 15 to 20 kt. Seas 4 to 6 ft. Wave detail: W 5 ft at 7 seconds and S 2 ft at 12 seconds. A slight chance of rain.

Tonight

NW wind 15 to 20 kt. Seas 5 to 7 ft. Wave detail: NW 5 ft at 8 seconds and SW 2 ft at 11 seconds. A slight chance of rain.

Fri

NW wind 15 to 20 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 8 seconds and S 2 ft at 13 seconds. A slight chance of rain in the morning.

Fri Night

NW wind 20 to 25 kt, easing to 10 to 15 kt after midnight. Seas 4 to 6 ft. Wave detail: W 5 ft at 8 seconds and SW 3 ft at 16 seconds.

Sat

NW wind 10 to 15 kt, rising to 15 to 20 kt in the afternoon. Seas 4 to 6 ft. Wave detail: NW 5 ft at 8 seconds and SW 2 ft at 17 seconds.

Sat Night

NW wind 15 to 20 kt. Seas 5 to 8 ft. Wave detail: NW 7 ft at 8 seconds and S 2 ft at 17 seconds.

Sun

NW wind 15 to 20 kt, easing to 10 to 15 kt in the afternoon. Seas 5 to 7 ft. Wave detail: W 6 ft at 8 seconds and S 2 ft at 15 seconds.

Sun Night

NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave detail: W 5 ft at 8 seconds and SW 2 ft at 15 seconds.

Mon

NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 8 seconds and S 2 ft at 14 seconds.

Mon Night

W wind 10 to 15 kt. Seas 3 to 4 ft. Wave detail: W 3 ft at 7 seconds and SW 3 ft at 13 seconds.

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

in the deep water channel...mixed seas of 2 to 4 ft at 15 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 2.5 kt at 04:34 am thursday and 2.0 kt at 05:03 pm thursday.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 2 to 4 ft at 15 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 2.5 kt at 04:34 AM Thursday and 2.0 kt at 05:03 PM Thursday.