World Resorts USA Hilton Head Island Weather

Hilton Head Island weather in August

Weather in Hilton Head Island: August

Average day temperature: 86.2°F
Average night temperature: 76.8°F
Sea water temperature: 85.2°F
Number of sunny days: 4 days
Day length: 12.8 - 13.7 hours
Number of rainy days: 6 days
Precipitation totals: 3.1 in.

Air temperature in August, °F

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2024
2023
2022
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0
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45
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75
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105
120
Day temperature   
Night temperature

The highest day temperature during August of 2024 was 89°F. At the same time the lowest night temperature was 72°F. Day and night temperature averages during August were 83.6°F and 78.0°F.

Sea water temperature in Hilton Head Island in August, °F

Show year:
2024
2023
2022
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76
79
82
85
88
91
94

The average sea water temperature in August of 2024 was 84.0°F. The highest and lowest sea temperatures during the month were 86.4°F and 80.8°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
13%
45%
42%

Mostly all days in August are partly cloudy but sunny or cloudy days are also possible.

Precipitation total in August, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.5
1.1
1.6
2.1
2.7
3.2
3.7
4.3
1.5
2.3
1.9
1.5
1.5
1.7
1.4
1.0
1.5
3.1
2.3
1.9
1.5
1.5
1.7
1.4
1.0

Precipitation total value in Hilton Head Island in August is 3.1 in. Other months of the year show relatively similar values.

Wind speed in August, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.4
2.8
4.1
5.5
6.9
8.3
9.6
8.0
7.3
6.8
7.1
6.5
7.4
7.4
8.0
7.7
7.6
8.0
8.0
7.3
6.8
7.1
6.6
6.5
7.4
7.4
8.0
7.7
7.6
8.0

The average wind speed value in August is 6.6 mph It makes August one of the least windy months of the year.

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.5
3.0
4.5
6.0
7.5
9.0
10.5
11.9
5.6
6.2
7.9
7.4
7.2
8.0
8.4
8.7
7.0
6.2
6.2
5.6
6.2
7.9
7.4
6.5
7.2
8.0
8.4
8.7
7.0
6.2
6.2

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 6.5.

Best time for vacation in Hilton Head Island

Sunniest months:
October 16 days
April 16 days
January 13 days
Warmest months:
July 87.6 °F
August 86.2 °F
June 84.3 °F
Warmest sea temp:
August 85.2 °F
July 85.0 °F
September 81.9 °F
Coldest months:
January 55.8 °F
December 58.9 °F
February 60.9 °F
Rainiest months:
August 6 days
July 6 days
March 4 days
Windiest months:
January 8.0 mph
April 8.0 mph
December 8.0 mph

Hilton Head Island on a weather map

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Places in USA:
Name
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24 Hours Forecast
Hilton Head Island
Local time: 05:24
February 18, tuesday
0600
48°F
SW
4 mph
0900
50°F
SW
6 mph
1200
54°F
W
8 mph
1500
54°F
W
8 mph
1800
54°F
W
10 mph
2100
54°F
SW
8 mph
February 19, wednesday
0000
52°F
SW
9 mph
0300
52°F
SW
10 mph
Units of measurement: °C / °F