FZUS56 KLOX 180936 CWFLOX Coastal Waters Forecast for California National Weather Service Los Angeles/Oxnard CA 236 AM PDT Wed Mar 18 2026 Point Piedras Blancas to San Mateo Point CA out 60 NM including the Channel Islands National Marine Sanctuary ...See weather.gov/marine/wavedetail for more info on the new Wave Detail format... 236 AM PDT Wed Mar 18 2026 .Synopsis for the southern California coast and Santa Barbara Channel including the Channel Islands National Marine Sanctuary and National Park...at 09Z or 2 AM PDT, a 1021 mb surface high was centered about 450 NM west of Point Conception, while a 1012 mb thermal low was located in Gulf of California.
Point Piedras Blancas to Point Sal westward out to 10 NM- 236 AM PDT Wed Mar 18 2026
TODAY Light winds, becoming W 5 to 10 kt this afternoon. Seas 3 to 4 ft. Wave Detail: NW 2 ft at 8 seconds and S 3 ft at 15 seconds.
TONIGHT NW wind 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 7 seconds and S 2 ft at 14 seconds.
THU NW wind 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 7 seconds and S 2 ft at 14 seconds.
THU NIGHT NW wind 10 to 15 kt, becoming N 5 to 10 kt after midnight. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 8 seconds and S 2 ft at 14 seconds.
FRI N wind 5 to 10 kt, becoming W in the afternoon. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 9 seconds and S 2 ft at 14 seconds.
FRI NIGHT Light winds. Seas 3 to 5 ft. Wave Detail: W 4 ft at 11 seconds and S 2 ft at 14 seconds. Patchy fog after midnight.
SAT NW wind 5 to 10 kt, becoming 10 to 20 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 9 seconds and S 2 ft at 15 seconds. Patchy fog in the morning.
SAT NIGHT NW wind 10 to 20 kt. Seas 6 to 9 ft. Wave Detail: NW 7 ft at 10 seconds and SW 2 ft at 14 seconds.
SUN NW wind 10 to 20 kt, becoming 15 to 25 kt in the afternoon. Seas 6 to 9 ft. Wave Detail: NW 7 ft at 10 seconds and S 2 ft at 14 seconds.
SUN NIGHT NW wind 10 to 20 kt. Seas 6 to 8 ft. Wave Detail: NW 7 ft at 10 seconds and S 2 ft at 14 seconds.
Point Piedras Blancas to Point Sal from 10 to 60 NM- 236 AM PDT Wed Mar 18 2026
TODAY NW wind 10 to 15 kt. Seas 4 ft. Wave Detail: NW 3 ft at 7 seconds and S 3 ft at 15 seconds.
TONIGHT NW wind 5 to 10 kt, becoming 10 to 20 kt after midnight. Seas 4 ft. Wave Detail: NW 4 ft at 7 seconds and S 3 ft at 14 seconds.
THU NW wind 10 to 20 kt. Seas 4 ft. Wave Detail: NW 4 ft at 7 seconds and S 2 ft at 14 seconds.
THU NIGHT NW wind 15 to 25 kt. Seas 4 to 6 ft. Wave Detail: NW 6 ft at 8 seconds and S 2 ft at 14 seconds.
FRI NW wind 10 to 20 kt. Seas 5 to 6 ft. Wave Detail: NW 5 ft at 9 seconds and S 2 ft at 14 seconds.
FRI NIGHT NW wind 10 to 20 kt. Seas 5 to 7 ft. Wave Detail: NW 5 ft at 10 seconds and S 2 ft at 14 seconds. Patchy fog after midnight.
SAT NW wind 15 to 25 kt, becoming 20 to 30 kt in the afternoon. Seas 6 to 9 ft. Wave Detail: NW 9 ft at 10 seconds and S 2 ft at 15 seconds. Patchy fog in the morning.
SAT NIGHT NW wind 20 to 30 kt. Seas 9 to 11 ft. Wave Detail: NW 11 ft at 10 seconds and S 2 ft at 14 seconds.
SUN NW wind 20 to 30 kt. Seas 9 to 12 ft. Wave Detail: NW 11 ft at 10 seconds and S 2 ft at 14 seconds.
SUN NIGHT NW wind 20 to 25 kt. Seas 8 to 10 ft. Wave Detail: NW 10 ft at 10 seconds and S 2 ft at 14 seconds.
Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands- 236 AM PDT Wed Mar 18 2026
TODAY NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 7 seconds and S 3 ft at 15 seconds.
TONIGHT NW wind 10 to 20 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 7 seconds and S 3 ft at 14 seconds.
THU NW wind 10 to 20 kt. Seas 3 to 4 ft. Wave Detail: NW 4 ft at 6 seconds and S 2 ft at 14 seconds.
THU NIGHT NW wind 10 to 20 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft at 8 seconds and S 2 ft at 14 seconds.
FRI NW wind 10 to 20 kt, becoming 5 to 10 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 9 seconds and S 2 ft at 14 seconds.
FRI NIGHT NW wind 5 to 10 kt, becoming 10 to 15 kt after midnight. Seas 4 to 6 ft. Wave Detail: NW 2 ft at 9 seconds, NW 5 ft at 10 seconds and S 2 ft at 14 seconds. Patchy fog after midnight.
SAT NW wind 10 to 20 kt, becoming 15 to 25 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: NW 5 ft at 10 seconds and S 2 ft at 15 seconds. Patchy fog in the morning.
SAT NIGHT NW wind 25 to 30 kt. Seas 6 to 9 ft, building to 8 to 11 ft. Wave Detail: NW 10 ft at 10 seconds and S 2 ft at 14 seconds.
SUN NW wind 25 to 30 kt. Seas 9 to 11 ft. Wave Detail: NW 11 ft at 10 seconds and S 2 ft at 14 seconds.
SUN NIGHT NW wind 25 to 30 kt. Seas 8 to 11 ft. Wave Detail: NW 9 ft at 11 seconds and S 2 ft at 14 seconds.
Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands- 236 AM PDT Wed Mar 18 2026
TODAY W wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 8 seconds and S 3 ft at 15 seconds.
TONIGHT W wind 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: W 2 ft at 5 seconds, NW 2 ft at 8 seconds and S 2 ft at 14 seconds.
THU W wind 10 to 15 kt, becoming 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: W 3 ft at 7 seconds and S 2 ft at 14 seconds.
THU NIGHT W wind 10 to 20 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at 6 seconds and S 2 ft at 14 seconds.
FRI W wind 10 to 15 kt in the morning, becoming light. Seas 3 to 5 ft. Wave Detail: W 4 ft at 9 seconds and S 2 ft at 14 seconds.
FRI NIGHT W wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft at 10 seconds and SW 2 ft at 14 seconds. Patchy fog after midnight.
SAT NW wind 5 to 10 kt, becoming W 15 to 20 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: NW 2 ft at 9 seconds, W 4 ft at 11 seconds and S 2 ft at 15 seconds. Patchy fog in the morning.
SAT NIGHT NW wind 15 to 25 kt, becoming 20 to 30 kt after midnight. Seas 4 to 6 ft, building to 6 to 8 ft. Wave Detail: NW 4 ft at 10 seconds and S 2 ft at 14 seconds.
SUN NW wind 15 to 25 kt. Seas 6 to 8 ft. Wave Detail: NW 5 ft at 10 seconds and S 2 ft at 14 seconds.
SUN NIGHT NW wind 15 to 25 kt. Seas 6 to 8 ft. Wave Detail: NW 5 ft at 10 seconds and S 2 ft at 14 seconds.
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA including Santa Cruz Island- 236 AM PDT Wed Mar 18 2026
TODAY Light winds, becoming S 5 to 10 kt this afternoon. Seas 2 ft. Wave Detail: W 2 ft at 7 seconds.
TONIGHT W wind 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 5 seconds.
THU SE wind 5 to 10 kt, becoming SW in the afternoon. Seas 2 ft. Wave Detail: W 2 ft at 7 seconds.
THU NIGHT W wind 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: W 2 ft at 7 seconds.
FRI Light winds. Seas 2 to 3 ft. Wave Detail: W 2 ft at 9 seconds.
FRI NIGHT Light winds. Seas 2 to 3 ft. Wave Detail: W 2 ft at 11 seconds. Patchy fog after midnight.
SAT Light winds, becoming SW 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: W 3 ft at 11 seconds. Patchy fog in the morning.
SAT NIGHT Western Portion, NW wind 10 to 15 kt. Eastern Portion, W wind 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: W 4 ft at 10 seconds.
SUN Western Portion, NW wind 10 to 20 kt. Eastern Portion, SW wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 10 seconds.
SUN NIGHT Western Portion, NW wind 10 to 20 kt. Eastern Portion, NW wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 9 seconds.
Inner waters from Point Mugu to San Mateo Pt. CA including Santa Catalina and Anacapa Islands- 236 AM PDT Wed Mar 18 2026
TODAY Light winds, becoming SW 10 to 15 kt this afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 15 seconds.
TONIGHT W wind 10 to 15 kt, becoming SW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: W 2 ft at 5 seconds and S 2 ft at 14 seconds.
THU Light winds, becoming W 10 to 15 kt in the afternoon. Seas 2 ft.
THU NIGHT W wind 10 to 20 kt, becoming 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: W 2 ft at 5 seconds and S 2 ft at 14 seconds.
FRI Light winds, becoming SW 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: W 2 ft at 8 seconds and S 2 ft at 13 seconds.
FRI NIGHT W wind 5 to 10 kt in the evening, becoming light. Seas 2 to 3 ft. Wave Detail: W 2 ft at 9 seconds and S 2 ft at 14 seconds. Patchy fog after midnight.
SAT Light winds, becoming W 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: W 2 ft at 10 seconds and S 2 ft at 15 seconds. Patchy fog in the morning.
SAT NIGHT W wind 5 to 10 kt in the evening, becoming light. Seas 2 to 3 ft. Wave Detail: W 3 ft at 10 seconds and S 2 ft at 14 seconds.
SUN Light winds, becoming W 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: W 3 ft at 10 seconds and S 2 ft at 14 seconds.
SUN NIGHT W wind 5 to 10 kt in the evening, becoming light. Seas 2 to 4 ft. Wave Detail: W 3 ft at 9 seconds. Patchy fog after midnight.
Hall www.weather.gov/losangeles
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