Port Royal, SC Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Port Royal, a town in Beaufort County, South Carolina.
Overnight
77°F
Mostly Clear
Mostly clear, with a low around 77. West wind around 3 mph.
7-day forecast for Port Royal
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 77°F | Mostly Clear | 3 mph W | 4% |
| Saturday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 1 to 5 mph NW | 36% |
| Saturday Night | 76°F | Chance Showers And Thunderstorms | 5 mph E | 41% |
| Sunday | 86°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 1 to 5 mph NE | 47% |
| Sunday Night | 76°F | Chance Showers And Thunderstorms then Partly Cloudy | 1 to 5 mph SE | 31% |
| Monday | 86°F | Chance Showers And Thunderstorms | 2 to 7 mph NE | 32% |
| Monday Night | 76°F | Chance Showers And Thunderstorms | 2 to 7 mph E | 35% |
| Tuesday | 85°F | Showers And Thunderstorms Likely | 5 to 8 mph NE | 68% |
| Tuesday Night | 74°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 to 8 mph NE | 68% |
| Wednesday | 84°F | Chance Rain Showers then Chance Showers And Thunderstorms | 9 to 13 mph NE | 49% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms | 9 to 13 mph NE | 49% |
| Thursday | 83°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 14 mph NE | 23% |
| Thursday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 10 mph NE | 23% |
| Friday | 81°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 12 mph NE | 23% |
Forecast source: National Weather Service (api.weather.gov) for Port Royal (32.355, -80.700). Updated through the day.
Growing snapshot for Port Royal
Last spring frost
Mar 3
First fall frost
Dec 9
Growing season
282 days
Hardiness zone
9a
More local growing data for Port Royal: nearby ZIP 29905 weather · frost dates · planting calendar · South Carolina frost dates
Nearby towns & communities
Beaufort
Bluffton
Burton
Dale
Daufuskie Island
Fripp Island
Harbor Island
Hilton Head Island
Laurel Bay
Lobeco
Seabrook
Sheldon
Shell Point
All South Carolina locations ›
Climate data from the nearest NOAA station, Beaufort Wwtp, Sc (2.8 mi from Port Royal). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.