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Monthly Historical Averages
Hilton Head Island - Port Royal Plantation, SC
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April
Average Temperature
High
22°
Feels 22
Low
16°
Feels 15
Average Precipitation
8 Days
Rain amount
76.3mm
Snow amount
0cm
Content continues below
Daily Historical Averages
April 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
18°
9
21°
10
23°
11
24°
12
25°
13
25°
14
26°
15
26°
16
27°
17
26°
18
26°
19
26°
20
26°
21
27°
22
27°
23
24
25
26
27
28
29
30
Forecast
Wednesday, April 8, 2026
Day
18°
Feels 16
Wind
41 km/h NE
Gust
62 km/h
Humidity
48%
P.O.P
20%
Night
12°
Feels 9
Wind
40 km/h NE
Gust
61 km/h
Humidity
79%
P.O.P
30%
Historical Averages
Apr 8
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.