412
FZUS56 KMTR 220347
SRFMTR
NORTHERN AND CENTRAL CALIFORNIA SURF ZONE FORECAST
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
847 PM PDT Thu Aug 21 2025

...Please check with your local authorities on potential beach closures...

CAZ505-221800-
SONOMA AND MARIN COUNTY COASTAL AREAS-
847 PM PDT Thu Aug 21 2025


.FRIDAY...
Surf Height...................5 to 8 feet.
Thunderstorm Potential........None expected.
Water Temperature.............Missing.
Weather.......................Partly cloudy.
High Temperature..............57-82.
Wind..........................NW at 14 MPH.
Tides.........................Low -0.5 feet (MLLW) 05:35 AM PDT.
                              High 5.2 feet (MLLW) 12:35 PM PDT.
                              Low 2.3 feet (MLLW) 05:30 PM PDT.
                              High 6.3 feet (MLLW) 11:34 PM PDT.

.SATURDAY...
Surf Height...................3 to 6 feet.
Thunderstorm Potential........None expected.
Weather.......................Mostly cloudy.
High Temperature..............57-79.
Wind..........................NW at 6 MPH.
Tides.........................Low -0.3 feet (MLLW) 06:11 AM PDT.
                              High 5.3 feet (MLLW) 01:07 PM PDT.
                              Low 2.0 feet (MLLW) 06:15 PM PDT.
                              High 5.9 feet (MLLW) 11:19 PM PDT.


$$


CAZ509-221800-
SAN FRANCISCO AND SAN MATEO COUNTY COASTAL AREAS-
847 PM PDT Thu Aug 21 2025


.FRIDAY...
Surf Height...................5 to 8 feet.
Thunderstorm Potential........None expected.
Water Temperature.............56 to 57 degrees.
Weather.......................Mostly cloudy.
High Temperature..............58-88.
Wind..........................NW at 11 MPH.
Tides.........................Low -0.5 feet (MLLW) 05:35 AM PDT.
                              High 5.2 feet (MLLW) 12:35 PM PDT.
                              Low 2.3 feet (MLLW) 05:30 PM PDT.
                              High 6.3 feet (MLLW) 11:34 PM PDT.

.SATURDAY...
Surf Height...................3 to 6 feet.
Thunderstorm Potential........None expected.
Weather.......................Mostly cloudy.
High Temperature..............58-79.
Wind..........................NW at 6 MPH.
Tides.........................Low -0.3 feet (MLLW) 06:11 AM PDT.
                              High 5.3 feet (MLLW) 01:07 PM PDT.
                              Low 2.0 feet (MLLW) 06:15 PM PDT.
                              High 5.9 feet (MLLW) 11:19 PM PDT.


$$


CAZ529-221800-
SANTA CRUZ COUNTY COASTAL AREAS-
847 PM PDT Thu Aug 21 2025


.FRIDAY...
Surf Height...................4 to 7 feet.
Thunderstorm Potential........None expected.
Water Temperature.............Missing.
Weather.......................Partly cloudy.
High Temperature..............62-91.
Wind..........................NW at 16 MPH becoming NW at 18 MPH.
Tides.........................Low -0.6 feet (MLLW) 04:55 AM PDT.
                              High 4.3 feet (MLLW) 11:28 AM PDT.
                              Low 2.1 feet (MLLW) 04:28 PM PDT.
                              High 5.9 feet (MLLW) 10:27 PM PDT.

.SATURDAY...
Surf Height...................3 to 6 feet.
Thunderstorm Potential........None expected.
Weather.......................Mostly cloudy.
High Temperature..............62-85.
Wind..........................NW at 10 MPH becoming NW at 12 MPH.
Tides.........................Low -0.3 feet (MLLW) 05:29 AM PDT.
                              High 4.5 feet (MLLW) 11:57 AM PDT.
                              Low 1.9 feet (MLLW) 05:14 PM PDT.
                              High 5.6 feet (MLLW) 11:11 PM PDT.


$$


CAZ530-221800-
MONTEREY BAY AND BIG SUR COASTAL AREAS-
847 PM PDT Thu Aug 21 2025


.FRIDAY...
Surf Height...................3 to 6 feet.
Thunderstorm Potential........None expected.
Water Temperature.............63 to 64 degrees.
Weather.......................Partly cloudy.
High Temperature..............63-86.
Wind..........................NW at 6 MPH becoming NW at 13 MPH.
Tides.........................Low -0.6 feet (MLLW) 04:55 AM PDT.
                              High 4.3 feet (MLLW) 11:28 AM PDT.
                              Low 2.1 feet (MLLW) 04:28 PM PDT.
                              High 5.9 feet (MLLW) 10:27 PM PDT.

.SATURDAY...
Surf Height...................3 to 5 feet.
Thunderstorm Potential........None expected.
Weather.......................Mostly cloudy.
High Temperature..............62-83.
Wind..........................W at 4 MPH becoming W at 11 MPH.
Tides.........................Low -0.3 feet (MLLW) 05:29 AM PDT.
                              High 4.5 feet (MLLW) 11:57 AM PDT.
                              Low 1.9 feet (MLLW) 05:14 PM PDT.
                              High 5.6 feet (MLLW) 11:11 PM PDT.


$$