Dangerous Heat Builds and Expands; Critical Fire Weather for the Southwest; Severe Thunderstorms for Plains and Midwest

Dangerous to record breaking heat will build across the center of the nation and slowly build eastward this week. Wildfire conditions remain critical for the Southwest and portions of the Great Basin through Monday. For the northern Plains and upper Midwest, severe thunderstorms with the potential for large to very large hail and severe winds are the primary hazards. Read More >

Hazardous Weather Conditions

Small Craft Advisory until June 30, 03:00 AM PDT

Last Update: 210 PM PDT Sun Jun 28 2026

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San Francisco Bay Area/Monterey, CA Local Forecast Office

12NM SW San Francisco CA

Marine Zone Forecast

Tonight

NW wind 20 to 25 kt, easing to 15 to 20 kt late. Seas 8 to 11 ft. Wave detail: NW 10 ft at 10 seconds and SW 2 ft at 15 seconds.

Mon

NW wind 15 to 20 kt, easing to 10 to 15 kt in the afternoon. Seas 8 to 11 ft, subsiding to 6 to 9 ft in the afternoon. Wave detail: NW 10 ft at 10 seconds and SW 2 ft at 15 seconds.

Mon Night

NW wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Seas 7 to 10 ft. Wave detail: NW 9 ft at 10 seconds.

Tue

W wind 5 to 10 kt. Seas 6 to 9 ft. Wave detail: NW 8 ft at 11 seconds and S 2 ft at 16 seconds.

Tue Night

NW wind 15 to 20 kt. Seas 5 to 8 ft, building to 7 to 10 ft after midnight. Wave detail: NW 9 ft at 11 seconds.

Wed

W wind 10 to 15 kt. Seas 6 to 9 ft. Wave detail: NW 8 ft at 11 seconds and SW 2 ft at 17 seconds.

Wed Night

W wind 15 to 20 kt. Seas 5 to 7 ft. Wave detail: NW 6 ft at 10 seconds.

Thu

W wind 10 to 15 kt, easing to 5 to 10 kt in the afternoon. Seas 5 to 7 ft. Wave detail: NW 6 ft at 10 seconds and SW 2 ft at 16 seconds.

Thu Night

W wind 5 to 10 kt. Seas 4 to 6 ft, building to 5 to 8 ft after midnight. Wave detail: NW 6 ft at 9 seconds and SW 2 ft at 16 seconds.

Fri

W wind 5 to 10 kt. Seas 5 to 7 ft. Wave detail: NW 6 ft at 8 seconds and SW 2 ft at 16 seconds.

Fri Night

W wind 5 to 10 kt. Seas 3 to 5 ft. Wave detail: NW 4 ft at 8 seconds and SW 2 ft at 16 seconds.

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

in the deep water channel...mixed seas of 3 to 5 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 1.0 kt at 04:39 pm sunday and 2.9 kt at 04:12 am monday.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 3 to 5 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 1.0 kt at 04:39 PM Sunday and 2.9 kt at 04:12 AM Monday.