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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.

This Afternoon
88°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Southeast wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Seabrook Island

WhenTempForecastWindPrecip
This Afternoon 88°F Chance Showers And Thunderstorms 7 mph SE 37%
Tonight 74°F Chance Showers And Thunderstorms 2 to 6 mph E 32%
Sunday 85°F Chance Showers And Thunderstorms 3 to 7 mph NE 42%
Sunday Night 74°F Slight Chance Showers And Thunderstorms then Partly Cloudy 1 to 7 mph E 15%
Monday 86°F Mostly Sunny 2 to 9 mph E 13%
Monday Night 75°F Slight Chance Showers And Thunderstorms 2 to 8 mph E 29%
Tuesday 85°F Showers And Thunderstorms Likely 3 to 10 mph NE 67%
Tuesday Night 73°F Showers And Thunderstorms Likely then Chance Showers And Thunderstorms 7 to 10 mph NE 67%
Wednesday 83°F Chance Showers And Thunderstorms 12 to 16 mph NE 49%
Wednesday Night 70°F Chance Showers And Thunderstorms 16 mph NE 49%
Thursday 81°F Mostly Sunny then Slight Chance Showers And Thunderstorms 17 mph N 23%
Thursday Night 68°F Slight Chance Showers And Thunderstorms then Partly Cloudy 15 mph NE 23%
Friday 80°F Sunny 14 mph NE 10%
Friday Night 68°F Partly Cloudy 7 to 10 mph NE 10%

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

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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 Sep 19, 2026.