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Monthly Historical Averages
Hilton Head Island - Mariott (Alder Lane), SC
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Daily Historical Averages
April 2026
S
M
T
W
T
F
S
1
24°
2
24°
3
24°
4
25°
5
25°
6
22°
7
22°
8
21°
9
21°
10
22°
11
24°
12
25°
13
25°
14
24°
15
25°
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Forecast
Wednesday, April 1, 2026
Day
24°
Feels 24
Wind
17 km/h SE
Gust
25 km/h
Humidity
69%
P.O.P
20%
Night
17°
Feels 17
Wind
17 km/h S
Gust
25 km/h
Humidity
91%
P.O.P
20%
Historical Averages
Apr 1
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.
April
Average Temperature
High
22°
Feels 23
Low
15°
Feels 15
Average Precipitation
8 Days
Rain amount
78.4mm
Snow amount
0cm