Hilton Head Island, SC Weather

Hilton Head Island weather forecast

  • Temperature:82°F
  • Humidity:74%
  • Pressure:30.01inHg
  • Wind speed:10mph
  • Direction:
  • Gusts:n/a

Update from Beaufort, Marine Corps Air Station, SC on 20 Aug 6:56 AM PDT

Forecasted weather

Today

Isolated Thunderstorms

92°F 20% POP

Tonight

Slight Chc Thunderstorms

79°F 20% POP

Thursday

Mostly Sunny

92°F

Thursday Night

Partly Cloudy

82°F

Friday

Mostly Sunny

93°F

Friday Night

Partly Cloudy

81°F

Saturday

Mostly Sunny

89°F

Saturday Night

Partly Cloudy

81°F

Sunday

Chance Thunderstorms

89°F 30% POP

Sunday Night

Chance Thunderstorms

78°F 30% POP

Monday

Chance Thunderstorms

86°F 30% POP

Monday Night

Partly Cloudy

78°F

Tuesday

Mostly Sunny

87°F

Hilton Head Island average temperature

MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January28°F77°F53°Fn/a
February27°F77°F54°Fn/a
March32°F86°F60°Fn/a
April37°F90°F67°Fn/a
May52°F95°F74°Fn/a
June52°F102°F81°Fn/a
July70°F99°F83°Fn/a
August70°F100°F83°Fn/a
September55°F93°F79°Fn/a
October41°F88°F70°Fn/a
November32°F82°F60°Fn/a
December30°F79°F56°Fn/a
In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.

The highest average temperature in Hilton Head Island is August at 83.1 degrees. The coldest average temperature in Hilton Head Island is January at 52.9 degrees. The most monthly precipitation in Hilton Head Island occurs in January with 0 inches. The Hilton Head Island weather information is based on the average of the previous 3-7 years of data.

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Hilton Head Island air quality index & pollution index

IndexHilton Head IslandSouth CarolinaNational
Air quality index414237
Pollution index1,428,3703,271,6566,623,939
In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
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The Hilton Head Island, SC air quality index is a median value which considers the most hazardous air pollutants. The Hilton Head Island, SC air quality index is 3.2% less than the South Carolina average and 10.8% greater than the national average.

The Hilton Head Island, SC pollution index is the sum of the most hazardous air pollutants displayed in pounds. The Hilton Head Island, SC pollution index is 56.3% less than the South Carolina average and 78.4% less than the national average.

Air quality information

MeasurementTotal
Days measured366
Days with good air quality287
Days with moderate air quality79
Days w/ poor A.Q. for sensitive groups0
Days with unhealthy air quality0

Air pollution information

PollutantTotal
Arsenic0.020%
Benzene0.020%
Carbon Tetrachloride0.002%
Lead0.040%
Mercury0.000%

Average monthly Hilton Head Island temperature with heat index

Hilton Head Island monthly precipitation with daily maximum

Hilton Head Island monthly snow depth with daily maximum

Hilton Head Island monthly wind speed information

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Cities near Hilton Head Island, SC

CityMilesCityMiles
Hilton Head Island, SC0Wilmington Island, GA18.2
Bluffton, SC9.3Whitemarsh Island, GA18.2
Parris Island, SC10.7Laurel Bay, SC19.5
Tybee Island, GA13.4Thunderbolt, GA20.7
Shell Point, SC14.1Hardeeville, SC20.9
Port Royal, SC14.5Isle of Hope, GA22.8
Burton, SC17Savannah, GA22.9
Beaufort, SC17.8Skidaway Island, GA24.7
See all South Carolina cities