World Resorts USA Hilton Head Island Weather

Hilton Head Island weather in September

Weather in Hilton Head Island: September

Average day temperature: 82.1°F
Average night temperature: 72.5°F
Sea water temperature: 81.9°F
Number of sunny days: 11 days
Day length: 11.9 - 12.8 hours
Number of rainy days: 3 days
Precipitation totals: 1.5 in.

Air temperature in September, °F

Show year:
2024
2023
2022

The highest day temperature during September of 2024 was 84°F. At the same time the lowest night temperature was 68°F. Day and night temperature averages during September were 80.1°F and 75.8°F.

Sea water temperature in Hilton Head Island in September, °F

Show year:
2024
2023
2022

The average sea water temperature in September of 2024 was 80.2°F. The highest and lowest sea temperatures during the month were 85.1°F and 77.2°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in September is almost equal.

Precipitation total in September, in.

Precipitation total value in Hilton Head Island in September is 1.5 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 7.1 mph

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 7.4.

Best time for vacation in Hilton Head Island

Sunniest months:
October 16 days
April 16 days
December 14 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 57.2 °F
December 59.7 °F
February 60.9 °F
Rainiest months:
August 6 days
July 6 days
March 4 days
Windiest months:
April 8.0 mph
March 7.7 mph
January 7.7 mph

Hilton Head Island on a weather map

Hilton Head Island
+64°F
E 18 mph
Feels like: +64°F
Precip.: 0%
Places in USA:
Name
°F
+48°F
+52°F
+75°F
+75°F
+59°F
+72°F
+82°F
+70°F
+48°F
+63°F
+57°F
+73°F
+72°F
+72°F
+36°F
24 Hours Forecast
Hilton Head Island
Local time: 15:07
November 21, thursday
1800
64°F
E
17 mph
2100
57°F
E
14 mph
November 22, friday
0000
55°F
E
14 mph
0300
52°F
E
16 mph
0600
48°F
E
18 mph
0900
46°F
E
18 mph
1200
52°F
SE
21 mph
1500
55°F
SE
19 mph
Units of measurement: °C / °F