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.
This Afternoon
77°F
Sunny
Sunny, with a high near 77. East wind around 16 mph, with gusts as high as 24 mph.
7-day forecast for Port Royal
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Sunny | 16 mph E | 4% |
| Tonight | 70°F | Partly Cloudy | 8 to 14 mph E | 4% |
| Wednesday | 78°F | Partly Sunny | 7 to 12 mph E | 6% |
| Wednesday Night | 69°F | Mostly Cloudy | 2 to 6 mph SE | 3% |
| Thursday | 79°F | Mostly Sunny | 2 to 7 mph S | 5% |
| Thursday Night | 69°F | Partly Cloudy | 6 mph S | 6% |
| Friday | 78°F | Chance Showers And Thunderstorms | 7 mph SW | 41% |
| Friday Night | 60°F | Chance Showers And Thunderstorms | 5 mph W | 41% |
| Saturday | 77°F | Mostly Sunny | 5 mph NW | 7% |
| Saturday Night | 55°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph N | 15% |
| Sunday | 72°F | Slight Chance Rain Showers then Mostly Sunny | 6 mph NE | 15% |
| Sunday Night | 53°F | Partly Cloudy | 6 mph W | 13% |
| Monday | 70°F | Slight Chance Rain Showers | 8 mph W | 15% |
| Monday Night | 50°F | Slight Chance Rain Showers | 6 mph W | 15% |
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 Nov 3, 2026.