World Resorts USA Hilton Head Island Weather

Hilton Head Island 7 Days Forecast

01.09
tue
Day
84°F
NW 7 mph
Precip.
11%
Night
81°F
N 5 mph
Precip.
9%
02.09
wed
Day
84°F
NW 7 mph
Precip.
17%
Night
81°F
NW 8 mph
Precip.
24%
03.09
thu
Day
82°F
NW 9 mph
Precip.
26%
Night
81°F
N 9 mph
Precip.
10%
04.09
fri
Day
88°F
N 6 mph
Precip.
14%
Night
81°F
NE 9 mph
Precip.
10%
05.09
sat
Day
91°F
E 6 mph
Precip.
3%
Night
81°F
N 4 mph
Precip.
25%
06.09
sun
Day
84°F
SW 13 mph
Precip.
52%
Night
77°F
W 14 mph
Precip.
72%
07.09
mon
Day
79°F
W 17 mph
Precip.
20%
Night
79°F
W 12 mph
Precip.
13%

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 79.8°F. The highest and lowest sea temperatures during the month were 81.5°F and 77.2°F.

Air temperature in Hilton Head Island, °F

Precipitation total in Hilton Head Island, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Hilton Head Island

Sunniest months:
October 17 days
November 15 days
December 15 days
Warmest months:
July 88.0 °F
August 86.0 °F
June 84.8 °F
Warmest sea temp:
July 85.3 °F
August 85.3 °F
September 81.6 °F
Coldest months:
January 55.6 °F
December 58.8 °F
February 59.8 °F
Rainiest months:
August 5 days
July 4 days
September 3 days
Windiest months:
January 8.3 mph
February 8.2 mph
April 8.2 mph

Hilton Head Island on a weather map

Current weather
07:44
Hilton Head Island
+81°F
SW 5 mph
Feels like: +88°F
Precip.: 15%
Places in USA:
Name
°F
Boston
+68°F
Washington
+79°F
Hawaii
+77°F
Las Vegas
+72°F
Los Angeles
+61°F
Miami
+82°F
Maui
+61°F
Myrtle Beach
+79°F
New York
+73°F
San Diego
+64°F
San Francisco
+59°F
Santa Monica
+61°F
Sarasota
+79°F
Houston
+79°F
Chicago
+68°F
all places
24 Hours Forecast
Hilton Head Island
Local time: 07:44
September 01, tuesday
0900
81°F
SW
5 mph
1200
84°F
NW
7 mph
1500
84°F
NW
10 mph
1800
82°F
NW
10 mph
2100
81°F
NW
8 mph
September 02, wednesday
0000
81°F
N
5 mph
0300
79°F
N
2 mph
0600
79°F
S
2 mph
Units of measurement: °C / °F