When to go · Sullivan's Island
Sullivan's Island in March
Great month. Inside Sullivan's Island's best window: Mar–May, Sep–Nov.
Key facts
- Verdict
- Great
- Temperature
- 19°C (66°F)66°F (19°C) / 8°C (46°F)46°F (8°C)
- average high / low
- Rain days
- 9
- Crowds
- Medium
- United States overall
- Prices
- Medium
- United States overall
Verdict
Inside Sullivan's Island's best window: Mar–May, Sep–Nov.
Is another month better than March?
No other month rates higher than March for Sullivan's Island in this guide.
Weather in March
- Sullivan's IslandHighs around 19 °C (66 °F), lows around 8 °C (46 °F), rain on about 9 daysHighs around 66 °F (19 °C), lows around 46 °F (8 °C), rain on about 9 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Mardi Gras (New Orleans) big impact
Feb or Mar (varies) · United States
New Orleans hotels triple in price and sell out.
Spring break big impact
March–April · United States
Students fill Florida, Texas and Mexico beaches; parks busy.
Crowds and prices
- Crowds · United States overall
- Medium
- Prices · United States overall
- Medium
United States overall: Spring break fills Florida beaches and parks; the desert parks come into season.
Compare two months
Weather, crowds and prices for any two months in Sullivan's Island, side by side.
Verdict
Mar: Great
Apr: Great
Daytime high
Mar: 19 °C (66 °F)66 °F (19 °C)
Apr: 23 °C (73 °F)73 °F (23 °C)
Night low
Mar: 8 °C (46 °F)46 °F (8 °C)
Apr: 12 °C (54 °F)54 °F (12 °C)
Rain days
Mar: 9
Apr: 8 (better)
Crowds
Mar: Medium
Apr: Medium
Prices
Mar: Medium
Apr: Medium
Festivals listed
Mar: 2
Apr: 1
March: Inside Sullivan's Island's best window: Mar–May, Sep–Nov.
April: Inside Sullivan's Island's best window: Mar–May, Sep–Nov.
Sullivan's Island: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm layer for the evenings