Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Hazardous Weather Conditions

Small Craft Advisory until March 23, 03:00 AM PDT

Last Update: 238 AM PDT Sun Mar 22 2026

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For More Weather Information:

San Francisco Bay Area/Monterey, CA Local Forecast Office

12NM SW San Francisco CA

Marine Zone Forecast

Today

NW wind 10 to 15 kt, easing to 5 to 10 kt late this morning, rising to 10 to 15 kt this afternoon. Seas 5 to 8 ft. Wave detail: NW 8 ft at 10 seconds.

Tonight

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

Mon

NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave detail: NW 6 ft at 9 seconds.

Mon Night

NW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave detail: NW 5 ft at 9 seconds.

Tue

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

Tue Night

NW wind 10 to 15 kt. Seas 3 to 4 ft. Wave detail: NW 4 ft at 6 seconds.

Wed

NW wind 15 to 20 kt, rising to 25 to 30 kt in the afternoon. Seas 3 to 5 ft. Wave detail: NW 5 ft at 7 seconds.

Wed Night

NW wind 25 to 30 kt. Seas 6 to 9 ft, building to 8 to 11 ft after midnight. Wave detail: NW 10 ft at 10 seconds.

Thu

NW wind 20 to 25 kt, easing to 15 to 20 kt in the afternoon. Seas 7 to 10 ft. Wave detail: NW 10 ft at 11 seconds.

Thu Night

NW wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Seas 5 to 8 ft. Wave detail: NW 7 ft at 11 seconds.

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

in the deep water channel...mixed seas of 3 to 4 feet at 12 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 4.3 kt at 06:52 am sunday and 1.6 kt at 07:52 pm sunday.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 3 to 4 feet at 12 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 4.3 kt at 06:52 AM Sunday and 1.6 kt at 07:52 PM Sunday.