Harman US

Seabrook Island, SC Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Seabrook Island, a town in Charleston County, South Carolina.

Overnight
67°F
Patchy Drizzle
Patchy drizzle. Partly cloudy, with a low around 67. East wind around 6 mph.

7-day forecast for Seabrook Island

WhenTempForecastWindPrecip
Overnight 67°F Patchy Drizzle 6 mph E 2%
Wednesday 79°F Patchy Drizzle then Mostly Sunny 6 to 9 mph E 4%
Wednesday Night 67°F Mostly Cloudy 5 mph SE 3%
Thursday 79°F Mostly Sunny 1 to 7 mph S 6%
Thursday Night 67°F Partly Cloudy 3 mph S 1%
Friday 78°F Chance Rain Showers 3 to 9 mph SW 41%
Friday Night 60°F Chance Rain Showers then Partly Cloudy 5 mph W 41%
Saturday 75°F Sunny 7 mph NE 1%
Saturday Night 54°F Partly Cloudy 3 to 9 mph NE 1%
Sunday 70°F Mostly Sunny 6 to 9 mph NE 1%
Sunday Night 52°F Partly Cloudy 6 mph NE 4%
Monday 69°F Mostly Sunny 7 mph N 5%
Monday Night 51°F Mostly Clear then Slight Chance Rain Showers 6 mph N 15%
Tuesday 70°F Slight Chance Rain Showers then Sunny 5 to 8 mph E 15%

Forecast source: National Weather Service (api.weather.gov) for Seabrook Island (32.575, -80.182). Updated through the day.

Growing snapshot for Seabrook Island

Last spring frost
Mar 1
First fall frost
Dec 6
Growing season
284 days
Hardiness zone
9a

More local growing data for Seabrook Island: nearby ZIP 29487 weather · frost dates · planting calendar · South Carolina frost dates

Nearby towns & communities

All South Carolina locations ›

Climate data from the nearest NOAA station, Edisto Is Middleton Plantation, Sc (9 mi from Seabrook Island). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.