World Resorts USA Hilton Head Island Weather

Hilton Head Island Sea Temperature in April

Average sea water temperature in April:
+68.3°F
Minimum sea water temperature in April: 74.5°F
Maximum sea water temperature in April: 62.1°F

Daily sea water temperature in April, °F

Show year:
2025
2024
2023
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3
5
7
9
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13
15
17
19
21
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25
27
29
31
58
61
64
67
70
73
76
79

The average sea water temperature in April of 2025 was 69.1°F. The highest and lowest sea temperatures during the month were 74.5°F and 64.2°F.

Monthly sea water temperature in Hilton Head Island, °F

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
14
28
42
56
70
84
98
112
57.8
66.2
73.8
81.9
85.2
85
80.7
75
68.3
61.5
54.9
53.8

Which USA resorts have warmest sea in April?

Place name April 2025 April 2024
Everglades 78.7°F 78.0°F
West Palm Beach 78.3°F 77.5°F
Miami Beach 78.2°F 77.1°F
Kailua Kona 78.1°F 76.9°F
Fort Lauderdale 77.9°F 76.9°F
Key West 77.9°F 77.6°F
Miami 77.8°F 76.9°F
Honolulu 77.3°F 76.2°F
Hawaii 77.2°F 76.1°F
Marco Island 77.1°F 76.6°F
Cape Coral 77.0°F 76.3°F
Naples 76.8°F 76.3°F
Maui 76.5°F 75.4°F
Tampa 76.4°F 74.1°F
Oahu 76.3°F 75.0°F
Sarasota 75.8°F 74.3°F
Siesta Key 75.5°F 74.3°F
Clearwater Beach 75.3°F 73.5°F
Kauai 74.8°F 75.1°F
Cocoa Beach 74.8°F 73.9°F

Best time for vacation in Hilton Head Island

Sunniest months:
October 16 days
April 14 days
December 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 60.1 °F
Rainiest months:
August 6 days
July 6 days
June 4 days
Windiest months:
January 8.0 mph
December 8.0 mph
April 7.9 mph

Hilton Head Island on a weather map

Leaflet | Tiles © Esri
Places in USA:
Name
°F
+63°F
+59°F
+77°F
+77°F
+68°F
+59°F
+75°F
+61°F
+75°F
+57°F
+52°F
+72°F
+77°F
+73°F
+70°F
24 Hours Forecast
Hilton Head Island
Local time: 01:01
April 29, tuesday
0300
70°F
NW
7 mph
0600
68°F
W
6 mph
0900
72°F
W
9 mph
1200
77°F
NW
9 mph
1500
77°F
NW
10 mph
1800
79°F
NW
9 mph
2100
72°F
NW
6 mph
April 30, wednesday
0000
68°F
NW
6 mph
Units of measurement: °C / °F