National Weather Service Marine Forecast FZUS56 KSGX

FZUS56 KSGX 271941
CWFSGX

Coastal Waters Forecast for California
National Weather Service San Diego CA
1241 PM PDT Mon Apr 27 2026

San Mateo Point to the Mexican border out 60 nm

PZZ700-280830
1241 PM PDT Mon Apr 27 2026

Synopsis for the far Southern CA coast

At 1 PM, a 1028 mb high was 500 nautical miles west of Cape Mendocino and a 1010 mb low was over Las Vegas. Moderate onshore flow will prevail through Friday. Periods of gusts near 20 knots will be possible in the outer coastal waters near San Clemente Island on Tuesday afternoon and early evening, and again on Wednesday afternoon and evening.

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PZZ740-280830
Coastal Waters from San Mateo Point to the Mexican Border and out to 10 nm
1241 PM PDT Mon Apr 27 2026

TONIGHT
Wind NW 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 5 seconds and S 1 foot at 12 seconds.

TUE
Wind N 10 kt...becoming W in the afternoon. Seas 3 ft. Wave Detail: W 3 ft at 5 seconds and S 1 foot at 12 seconds.

TUE NIGHT
Wind NW 10 to 15 kt in the evening... becoming variable less than 10 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 5 seconds and SW 1 foot at 12 seconds.

WED
Wind NW 10 kt. Seas 3 ft. Wave Detail: W 2 ft at 5 seconds and SW 1 foot at 14 seconds.

WED NIGHT
Wind W 10 kt in the evening...becoming variable less than 10 kt. Seas 3 ft. Wave Detail: W 3 ft at 5 seconds and SW 1 foot at 14 seconds. A slight chance of showers after midnight.

THU
Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Seas 3 ft. Wave Detail: W 2 ft at 5 seconds and SW 1 foot at 13 seconds.

THU NIGHT
Wind variable less than 10 kt. Seas 3 ft. Wave Detail: W 3 ft at 5 seconds and SW 1 foot at 14 seconds.

FRI
Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Seas 3 ft. Wave Detail: SW 1 foot at 4 seconds, W 3 ft at 7 seconds and SW 1 foot at 12 seconds.

FRI NIGHT
Wind variable less than 10 kt. Seas 3 ft in the evening...becoming 2 ft or less. Wave Detail: W 1 foot at 4 seconds, W 2 ft at 7 seconds and SW 1 foot at 13 seconds... subsiding to W 2 ft at 13 seconds and SW 1 foot at 13 seconds.

SAT
Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Seas 2 ft or less...becoming 3 ft in the afternoon. W 1 foot at 4 seconds, W 2 ft at 13 seconds and S 1 foot at 13 seconds.

SAT NIGHT
Wind W 10 kt in the evening...becoming variable less than 10 kt. Seas 3 ft. Wave Detail: W 1 foot at 4 seconds, S 1 foot at 11 seconds and W 2 ft at 13 seconds.

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PZZ745-280830
Waters from San Mateo Point to the Mexican Border Extending 10 to 60 nm out including San Clemente Island
1241 PM PDT Mon Apr 27 2026

TONIGHT
Wind NW 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 5 seconds and S 1 foot at 12 seconds.

TUE
Wind NW 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 5 seconds and S 1 foot at 12 seconds.

TUE NIGHT
Wind NW 10 to 15 kt with gusts to 20 kt. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 5 seconds and S 1 foot at 12 seconds.

WED
Wind W 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at 5 seconds and S 1 foot at 14 seconds.

WED NIGHT
Wind W 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at 5 seconds and S 1 foot at 14 seconds.

THU
Wind W 10 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at 5 seconds and S 1 foot at 13 seconds.

THU NIGHT
Wind W 10 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at 5 seconds and S 1 foot at 14 seconds.

FRI
Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: SW 1 foot at 4 seconds, W 3 ft at 7 seconds and S 1 foot at 12 seconds.

FRI NIGHT
Wind NW 10 kt. Seas 3 to 4 ft. Wave Detail: W 2 ft at 4 seconds, W 3 ft at 7 seconds and S 1 foot at 13 seconds.

SAT
Wind W 10 kt. Seas 3 to 4 ft. Wave Detail: NW 1 foot at 4 seconds, W 2 ft at 13 seconds and S 1 foot at 13 seconds.

SAT NIGHT
Wind NW 10 kt. Seas 3 to 4 ft. Wave Detail: W 2 ft at 4 seconds, S 1 foot at 11 seconds and W 3 ft at 13 seconds.