When to go · Sullivan's Island

Sullivan's Island in August

Avoid month. Listed as a month to avoid: Jun–Aug (crowded, hot, rough surf).

Key facts

Verdict: Avoid
Temperature: 31°C (88°F)88°F (31°C) / 23°C (73°F)73°F (23°C); average high / low
Rain days: 12
Crowds: High; United States overall
Prices: High; United States overall

Plan around it

Verdict

AvoidBest and avoid months for Sullivan's Island

Listed as a month to avoid: Jun–Aug (crowded, hot, rough surf).

August is rated avoid. These months rate higher:

Long-term averages

Sullivan's IslandHighs around 31 °C (88 °F), lows around 23 °C (73 °F), rain on about 12 daysHighs around 88 °F (31 °C), lows around 73 °F (23 °C), rain on about 12 days

United States overall: Hot and busy; wildfire smoke in the West, hurricane peak begins in the Southeast.

Weather, crowds and prices for any two months in Sullivan's Island, side by side.

First month

Second month

August: Listed as a month to avoid: Jun–Aug (crowded, hot, rough surf).

March: 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.