Sea Ranch, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Sea Ranch, a community in Sonoma County, California.

Today

72°F

Mostly Sunny

Mostly sunny, with a high near 72. South southeast wind 1 to 6 mph.

7-day forecast for Sea Ranch

When	Temp	Forecast	Wind	Precip
Today	72°F	Mostly Sunny	1 to 6 mph SSE	0%
Tonight	54°F	Areas Of Fog	2 mph SSE	0%
Wednesday	71°F	Patchy Fog then Mostly Sunny	0 to 6 mph S	0%
Wednesday Night	53°F	Areas Of Fog	2 mph W	0%
Thursday	72°F	Areas Of Fog then Mostly Sunny	0 to 5 mph W	0%
Thursday Night	56°F	Partly Cloudy	0 to 3 mph NW	0%
Friday	81°F	Mostly Sunny	0 to 6 mph NW	0%
Friday Night	58°F	Partly Cloudy	2 to 6 mph NW	0%
Saturday	78°F	Sunny	1 to 10 mph NW	0%
Saturday Night	58°F	Mostly Clear	6 to 10 mph NW	0%
Sunday	74°F	Sunny	6 to 13 mph NW	0%
Sunday Night	55°F	Mostly Clear then Patchy Fog	3 to 12 mph NW	0%
Monday	70°F	Sunny	3 to 10 mph NW	0%
Monday Night	53°F	Partly Cloudy	2 to 9 mph NW	0%

Forecast source: National Weather Service (api.weather.gov) for Sea Ranch (38.725, -123.458). Updated through the day.

Growing snapshot for Sea Ranch

Last spring frost

Feb 26

First fall frost

Dec 27

Growing season

310 days

Hardiness zone

10a

More local growing data for Sea Ranch: nearby ZIP 95497 weather · frost dates · planting calendar · California frost dates

Nearby towns & communities

Bloomfield Bodega Bodega Bay Boyes Hot Springs Calistoga Carmet Cazadero Cloverdale Cotati El Verano Eldridge Fetters Hot Springs-Agua Caliente Forestville Fulton Geyserville Glen Ellen Graton Guerneville Healdsburg Jenner Kenwood Larkfield-Wikiup Monte Rio Occidental Penngrove Petaluma Rohnert Park Salmon Creek Santa Rosa Sebastopol

All California locations ›

Climate data from the nearest NOAA station, Ft Ross, Ca (18.5 mi from Sea Ranch). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.