Weather and Nature

Wave height in California

Most recent readings from the ocean buoys in the California area.

Open ocean buoy data, not spot by spot forecasts. Before paddling out, check local conditions and beach flags.

Wave height

2.0 m

Medium (1.2 to 2.5 m)

SOUTH SANTA ROSA - 14 NM SW of Santa Rosa Island, CA · 6.6 ft

Period

14 s

10/16/26, 12:50 AM UTC

Water temperature

21.8 °C

BuoyWave heightPeriodWater temperatureWhen
SOUTH SANTA ROSA - 14 NM SW of Santa Rosa Island, CA (46069)2.0 m14 s21.8 °C12:50 AM
Cape Mendocino, CA (094) (46213)1.8 m14 s13.4 °C12:30 AM
San Nicolas Island, CA (067) (46219)1.8 m14 s21.3 °C12:56 AM
MONTEREY - 27NM WNW of Monterey, CA (46042)1.7 m15 s17.2 °C12:50 AM
Point Reyes, CA (029) (46214)1.6 m13 s16.3 °C12:26 AM
Point Sur, CA (157) (46239)1.6 m14 s19.6 °C12:30 AM
Santa Lucia Escarpment, CA (222) (46259)1.6 m15 s20.6 °C12:56 AM
PT ARENA - 19NM North of Point Arena, CA (46014)1.5 m14 s14.2 °C12:50 AM
CAPE SAN MARTIN - 55NM West NW of Morro Bay, CA (46028)1.5 m15 s17.3 °C12:50 AM
SAN CLEMENTE BASIN - 27NM SE Of San Clemente Is, CA (46086)1.5 m15 s21.6 °C12:50 AM
Humboldt Bay, North Spit, CA (168) (46244)1.5 m14 s13.8 °C12:26 AM
SANTA MARIA - 21NM NW of Point Arguello, CA (46011)1.4 m15 s20.3 °C12:50 AM
ST GEORGES - 8 NM NW of Crescent City, CA (46027)1.4 m15 s—12:50 AM
Harvest, CA (071) (46218)1.4 m14 s19.9 °C12:26 AM
BODEGA BAY - 48NM NW of San Francisco, CA (46013)1.3 m15 s—12:50 AM
SAN FRANCISCO - 18NM West of San Francisco, CA (46026)1.2 m14 s—12:50 AM
WEST SANTA BARBARA 38 NM West of Santa Barbara, CA (46054)1.2 m15 s20.4 °C12:50 AM
Point Loma South, CA (191) (46232)1.2 m14 s22.8 °C12:56 AM
San Francisco Bar, CA (142) (46237)1.2 m15 s16.6 °C12:30 AM
Long Beach Channel, CA (215) (46256)1.2 m15 s22.1 °C12:56 AM
Monterey Canyon Outer, CA (156) (46236)1.1 m13 s17.9 °C12:30 AM
Mission Bay West, CA (220) (46258)1.1 m14 s22.8 °C12:26 AM
Green Beach Offshore, CA (271) (46277)1.1 m15 s23.0 °C12:30 AM
Diablo Canyon, CA (076) (46215)1.0 m14 s19.4 °C12:56 AM
Torrey Pines Outer, CA (100) (46225)1.0 m14 s23.0 °C12:56 AM
Santa Cruz Basin, CA (203) (46251)1.0 m15 s21.2 °C12:56 AM
Capistrano Beach Nearshore, CA (284) (46285)1.0 m15 s22.4 °C12:56 AM
HALF MOON BAY - 24NM SSW of San Francisco, CA (46012)0.9 m13 s16.0 °C12:00 AM
Santa Monica Basin - 33NM WSW of Santa Monica, CA (46025)0.9 m14 s22.4 °C12:50 AM
Santa Monica Bay, CA (028) (46221)0.9 m14 s22.1 °C12:56 AM

Wave height

RangeWhat it means
Flat (under 0.5 m)
Small (0.5 to 1.2 m)
Medium (1.2 to 2.5 m)
Large (2.5 to 4 m)
Very large (above 4 m)

Choose a region

How to read this page

How to read wave height

The 2.0 m significant height is the average of the tallest third of waves at the buoy, with a 14 s period; occasional waves run close to double that.

Where this data comes from

Live ocean buoy readings from NOAA’s National Data Buoy Center.

NOAA NDBC

What the number doesn’t tell you

The buoy measures a single point; the beach itself can have quite different wave height and shape, from bathymetry and local wind.

Words on this page

Significant wave height

The average of the highest third of waves measured by a buoy over a time window, not the single tallest wave seen. In practice, occasional individual waves reach nearly double that value, which is why surfers and sailors treat significant height as a floor, not a ceiling.

Standard definition by NOAA NDBC — National Data Buoy Center · Significant wave height

Preliminary data

A measurement published as soon as it is collected, before the agency’s final review. It can be corrected or withdrawn: earthquake magnitudes shift in the first hours, air-quality readings are revised weeks later. Use it to plan your day, not for regulatory or legal purposes.

Preliminary data

See the full environment and live data glossary

Data from 10/16/26, 12:56 AM UTC

How to read these numbers

Buoys are listed from the largest wave height down. The time of each reading is in UTC, as the source publishes it.

Frequently asked questions

How is the surf in California right now?
The table carries the significant height and period for each buoy in the area, with the observation time.
Why does a buoy show no wave height?
Some buoys only measure wind, pressure and temperature. We list only those reporting wave height.

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