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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Hilton Head Island, SC
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September
Average Temperature
High
29°
Feels 32
Low
23°
Feels 24
Average Precipitation
12 Days
Rain amount
95.6mm
Snow amount
0cm
Content continues below
Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
31°
4
31°
5
32°
6
31°
7
29°
8
29°
9
30°
10
31°
11
32°
12
31°
13
31°
14
31°
15
31°
16
30°
17
30°
18
19
20
21
22
23
24
25
26
27
28
29
30
Forecast
Thursday, September 3, 2026
Day
31°
Feels 37
Wind
16 km/h E
Gust
24 km/h
Humidity
67%
P.O.P
40%
Rain
<1 mm
Night
26°
Feels 26
Wind
12 km/h SE
Gust
18 km/h
Humidity
90%
P.O.P
40%
Rain
<1 mm
Historical Averages
Sep 3
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.