National Weather Service Marine Forecast FZUS56 KSGX

FZUS56 KSGX 090739
CWFSGX

Coastal Waters Forecast for California
National Weather Service San Diego CA
1239 AM PDT Sun Aug 9 2026

San Mateo Point to the Mexican border out 60 nm

PZZ700-092015
1239 AM PDT Sun Aug 9 2026

Synopsis for the far Southern CA coast

At 1 AM, a 1026 mb high was 500 nautical miles west of Eureka, and a 1005 mb low was over Las Vegas. Generally weak onshore flow will continue through Thursday.

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PZZ740-092015
Coastal Waters from San Mateo Point to the Mexican Border and out to 10 nm
1239 AM PDT Sun Aug 9 2026

TODAY
Wind variable less than 10 kt...becoming W 10 kt this afternoon. Seas 3 to 4 ft. Wave Detail: W 3 ft at 5 seconds and SW 2 ft at 15 seconds.

TONIGHT
Wind variable less than 10 kt. Seas 3 ft. Wave Detail: W 2 ft at 6 seconds and SW 2 ft at 15 seconds.

MON
Wind variable less than 10 kt...becoming SW 10 kt in the afternoon. Seas 3 ft. Wave Detail: W 2 ft at 5 seconds and SW 2 ft at 14 seconds.

MON NIGHT
Wind variable less than 10 kt. Seas 3 ft. Wave Detail: W 1 foot at 4 seconds, W 2 ft at 10 seconds and SW 2 ft at 14 seconds.

TUE
Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Seas 3 ft. Wave Detail: W 1 foot at 4 seconds, W 2 ft at 10 seconds and SW 2 ft at 13 seconds.

TUE 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, W 2 ft at 9 seconds and S 2 ft at 13 seconds.

WED
Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Seas 3 ft. Wave Detail: W 1 foot at 4 seconds, W 2 ft at 10 seconds and S 2 ft at 12 seconds.

WED NIGHT
Wind variable less than 10 kt. Seas 3 ft. Wave Detail: W 1 foot at 4 seconds, W 2 ft at 10 seconds and SW 2 ft at 12 seconds.

THU
Wind variable less than 10 kt...becoming SW 10 kt in the afternoon. Seas 3 ft. Wave Detail: W 2 ft at 9 seconds and SW 2 ft at 12 seconds.

THU NIGHT
Wind variable less than 10 kt. Seas 3 ft. Wave Detail: W 1 foot at 4 seconds, W 2 ft at 8 seconds and SW 2 ft at 15 seconds.

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PZZ745-092015
Waters from San Mateo Point to the Mexican Border Extending 10 to 60 nm out including San Clemente Island
1239 AM PDT Sun Aug 9 2026

TODAY
Wind W 10 kt. Seas 4 ft. Wave Detail: W 3 ft at 5 seconds and S 3 ft at 15 seconds.

TONIGHT
Wind W 10 kt. Seas 3 to 4 ft. Wave Detail: W 2 ft at 5 seconds and S 2 ft at 15 seconds.

MON
Wind variable less than 10 kt...becoming SW 10 kt in the afternoon. Seas 3 ft. Wave Detail: W 2 ft at 6 seconds and S 2 ft at 14 seconds.

MON NIGHT
Wind W 10 kt. Seas 3 ft. Wave Detail: W 1 foot at 4 seconds, W 2 ft at 10 seconds and S 2 ft at 14 seconds.

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

TUE 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, W 2 ft at 9 seconds and S 2 ft at 13 seconds.

WED
Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Seas 3 ft. Wave Detail: W 1 foot at 4 seconds, W 2 ft at 10 seconds and S 2 ft at 12 seconds.

WED 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, W 2 ft at 10 seconds and S 2 ft at 12 seconds.

THU
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 2 ft at 9 seconds and S 2 ft at 12 seconds.

THU NIGHT
Wind variable less than 10 kt. Seas 3 ft. Wave Detail: W 1 foot at 4 seconds, W 2 ft at 8 seconds and S 3 ft at 15 seconds.