‹ Hilton Head Island weather by month
Typical March weather
Hilton Head Island
South Carolina · March
70° days
49° nights
about 6 rainy days · 12 hours of daylight · ocean 61°
What to pack
- Light jacket
What March feels like
Spring arrives here weeks before it does up north, and by mid-March the shoulder-season rates are gone. Yellow pine pollen coats every white rental car on the island for a couple of weeks; nobody bothers washing it off until it stops.
Expect about 6 days with real rain — enough to notice, not enough to plan around. The air runs dry — whatever the thermometer says, it wears easy.
Can you swim?
The ocean runs about 61° — cold — a quick dip takes resolve.
The numbers
| Typical high | 70° |
|---|---|
| Typical low | 49° |
| Days with real rain | 6 |
| Total rain | 3.1 in |
| Humidity | dry air |
| Water temperature | 61° |
| Sunrise / sunset (mid-month) | 7:32 am / 7:30 pm |