Sea Ranch, CA Weather & Growing Conditions
Today
66°F
Mostly Sunny
Mostly sunny. High near 66, with temperatures falling to around 60 in the afternoon. North northwest wind 1 to 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 66°F | Mostly Sunny | 1 to 6 mph NNW | 1% |
| Tonight | 52°F | Partly Cloudy | 5 mph NNW | 1% |
| Thursday | 72°F | Sunny | 5 mph NW | 0% |
| Thursday Night | 50°F | Partly Cloudy | 3 mph NNW | 0% |
| Friday | 73°F | Mostly Sunny | 5 mph NNW | 0% |
| Friday Night | 53°F | Mostly Clear | 0 to 3 mph N | 0% |
| Saturday | 74°F | Sunny | 0 to 3 mph WNW | 0% |
| Saturday Night | 53°F | Partly Cloudy | 1 mph NW | 1% |
| Sunday | 73°F | Mostly Sunny | 1 to 5 mph NNW | 1% |
| Sunday Night | 54°F | Mostly Cloudy | 2 mph NNW | 0% |
| Monday | 70°F | Mostly Sunny | 1 to 5 mph NNW | 0% |
| Monday Night | 52°F | Partly Cloudy | 3 mph NNW | 1% |
| Tuesday | 71°F | Mostly Sunny | 3 mph NW | 8% |
| Tuesday Night | 56°F | Mostly Cloudy then Slight Chance Light Rain | 2 mph N | 23% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sea Ranch, CA
Last spring frost
Feb 26
First fall frost
Dec 27
Growing season
310 days
Hardiness zone
9b
Explore more for Sea Ranch, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Ft Ross, Ca (14.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.