NOAA Ocean Update – August 21, 2026

Coastal Buoy Observations

Surf Alert: Water temperature 71.8 °F and wave height 3.9 ft.

San Clemente Basin observations show a comfortable beach profile with water around the upper 70s and modest wave activity. Next high: 11:52 AM PST and Next low: 5:34 AM PST.

Primary Buoy
Area / Location San Clemente Basin (32.5033, -118.0283)
Observation time 5:40 PM PST
Wave period 13.8 sec
Wind speed and direction W 5.8 kt (280°)
Water temperature graph
71.8 °F
Wave height graph
3.9 ft
Air temperature graph
69.6 °F

Secondary Buoy
Area / Location Oceanside Offshore (33.1783, -117.4717)
Observation time 5:26 PM PST
Wave period 15.4 sec
Wind speed and direction Unavailable
Water temperature graph
75.7 °F
Wave height graph
2.0 ft
Air temperature graph Unavailable

Shore / Tide
Area / Location San Diego shore (32.7156, -117.1767)
Observation time 5:26 PM PST
Current water level 4.507 ft
Tide 1 High: 2:55 PM PST, 4.879 ft
Tide 2 Unavailable
Tide 3 Unavailable
Tide 4 Unavailable
Sources:

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