Hilton Head Island, SC Weather

Hilton Head Island weather forecast

  • Temperature:69°F
  • Humidity:93%
  • Pressure:29.87inHg
  • Wind speed:8mph
  • Direction:
  • Gusts:n/a

Update from Beaufort, Marine Corps Air Station, SC on 24 Nov 7:56 AM EST

Forecasted weather

Today

Chance Thunderstorms

75°F 30% POP

Tonight

Chance Thunderstorms

58°F 30% POP

Tuesday

Rain Likely

61°F 70% POP

Tuesday Night

Rain

49°F 90% POP

Wednesday

Rain Likely

54°F 60% POP

Wednesday Night

Mostly Clear

42°F

Thanksgiving Day

Sunny

59°F

Thursday Night

Clear

40°F

Friday

Sunny

57°F

Friday Night

Mostly Clear

42°F

Saturday

Sunny

60°F

Saturday Night

Mostly Clear

46°F

Sunday

Sunny

63°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 index403750
Pollution index1,428,3703,259,2535,072,052
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 8.8% greater than the South Carolina average and 19.5% less 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 56.2% less than the South Carolina average and 71.8% less than the national average.

Air quality information

MeasurementTotal
Days measured365
Days with good air quality249
Days with moderate air quality106
Days w/ poor A.Q. for sensitive groups10
Days with unhealthy air quality

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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