Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
Weather Guide
Hilton Head Island, South Carolina, United States Average Monthly Weather
Weather score57Good annual avg
Best months: May, September, June
Across the year, average daytime temperatures are around 24°C, sunshine averages 7.5h per day, and rainfall totals about 1291mm.
Annual weather
Annual averages
Temp
24°C
Rain
1291mm
Annual total
Sun
7.5h
Weather score
57
Good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 193mm, so showers are a real planning factor.
Bright
Sunshine averages 8h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Hilton Head Island, South Carolina, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August31°C average high
August is one of Hilton Head Island's warmest months, with daytime heat above the yearly average.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
August193mm average rain
August is one of Hilton Head Island's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to February, April to May, and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August8 hours average sun
August sits close to Hilton Head Island's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsApril to July
This stretch has the strongest sunshine in the monthly averages.
Weather score
August59 weather score
August sits close to Hilton Head Island's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsApril to June and September to October
These months have the strongest weather score in the monthly averages.
Hotels in Hilton Head Island, South Carolina, United States
Marriott
The Westin Hilton Head Island Resort & SpaHilton Head Island, South Carolina, USA
Courtyard Hilton Head IslandHilton Head Island, South Carolina, USA
SpringHill Suites by Marriott Hilton Head IslandHilton Head Island, South Carolina, USA
Marriott's Grande OceanHilton Head Island, South Carolina, USA
Marriott's Harbour ClubHilton Head Island, South Carolina, USA
Marriott's Heritage ClubHilton Head Island, South Carolina, USA