Monthly Weather in Hilton Head, United States
What is the average monthly temperature in Hilton Head?
The average monthly temperature in Hilton Head, South Carolina, United States ranges from 9.9°C (49.8°F) in January to 32.3°C (90.1°F) in August. Hilton Head temperature by month is given in the table below.
| Month | Celsius | Fahrenheit |
|---|---|---|
| January | 9.9°C | 49.8°F |
| February | 9.9°C | 49.8°F |
| March | 14.4°C | 57.9°F |
| April | 18.3°C | 64.9°F |
| May | 22.8°C | 73.0°F |
| June | 27.4°C | 81.3°F |
| July | 30.7°C | 87.3°F |
| August | 32.3°C | 90.1°F |
| September | 28.2°C | 82.8°F |
| October | 19.5°C | 67.1°F |
| November | 13.5°C | 56.3°F |
| December | 10.6°C | 51.1°F |
What is the hottest month in Hilton Head?
The hottest months in Hilton Head are August, July and September. During August the average temperature outside is 32.3°C (90.1°F), in July it is 30.7°C (87.3°F) and during September the air temperature is around 28.2°C (82.8°F).
What is the coldest month in Hilton Head?
The coldest months in Hilton Head are January, February and December. In January the average air temperature drops to 9.9°C (49.8°F), in February air temperature is 9.9°C (49.8°F) and during December it is 10.6°C (51.1°F).
How much does it rain on average in Hilton Head?
On average it rains for 12 month(s) in Hilton Head, United States with an average of 8.8 days of rain per month. In total Hilton Head has 105 rainy days in a year.
When does it rain the most in Hilton Head?
In Hilton Head it rains the most during the following months.
- May - on average 4.41mm (0.17 inches) of rainfall per day.
- June - on average 2.66mm (0.1 inches) of rainfall per day.
- October - on average 2.33mm (0.09 inches) of rainfall per day.
- September - on average 2.14mm (0.08 inches) of rainfall per day.
- July - on average 1.33mm (0.05 inches) of rainfall per day.
- February - on average 1.17mm (0.05 inches) of rainfall per day.
Does it snow in Hilton Head?
Yes, it snows in Hilton Head. The following months have the most amount of snow.
- February. Hilton Head has 0.08mm (0 inches) of snowfall and 0.06 mm (0 inches) of snow on the ground in February.
- January. Hilton Head has 0.05mm (0 inches) of snowfall and 0 mm (0 inches) of snow on the ground in January.
When is it windy in Hilton Head?
The windiest months in Hilton Head, United States are March, February and April. In March the average windspeed is 32.4 km/h (20.1 mph), during February the windspeed is 32.2 km/h (20 mph) and in April the windspeed is 31.1 km/h (19.3 mph).
What are the least windy months in Hilton Head?
The least windy months in Hilton Head are November, September and August. In November the average windspeed is 24.3 km/h (15.1 mph), during September the windspeed is 25.6 km/h (15.9 mph) and in August the windspeed is 25.8 km/h (16 mph).
When is it cloudy in Hilton Head?
The cloudiest months in Hilton Head, United States are November, March and October. On average in November 34.9% of sky is covered by clouds, in March 31.9% is covered by clouds and in October clouds cover about 28.6% of sky.
When does Hilton Head have the clearest sky?
Hilton Head has the clearest sky in August, July and September. In August 8.1% of sky is covered by clouds, in July clouds cover around 8.4% and during September clouds cover about 18.8% of sky.
What is the average daylight duration in Hilton Head?
The average daylight duration in Hilton Head is 12 hours 10 minutes 11 seconds.
Which months have the most daylight in Hilton Head?
The longest days in Hilton Head are during June, July and May.
- June - 14 hours 14 minutes 24 seconds of daylight.
- July - 14 hours 1 minutes 59 seconds of daylight.
- May - 13 hours 49 minutes 24 seconds of daylight.
Which months have the least daylight in Hilton Head?
The shortest days in Hilton Head are during December, January and November.
- December - 10 hours 3 minutes 49 seconds of daylight.
- January - 10 hours 18 minutes 7 seconds of daylight.
- November - 10 hours 30 minutes 27 seconds of daylight.
What are the humidity levels in Hilton Head throughout the year?
Humidity levels in Hilton Head, United States range from 35.8% in August to 64.1% in May.
What are the pressure levels in Hilton Head throughout the year?
Pressure levels in Hilton Head change from 1007.9 mb (millibars) in June to 1019.1 mb in December.
What is the visibility in Hilton Head throughout the year?
Visibility in Hilton Head changes from lowest 14.8 km (9.2 miles) in June to highest 15.9 km (9.9 miles) in August.
What are the UV levels in Hilton Head throughout the year?
UV levels change in Hilton Head from 5.3 in November to 9.1 in July.
Which months have the highest UV levels in Hilton Head throughout the year?
In Hilton Head, United States the highest UV index is during July, May and June. During July the average UV index is 9.1, in May UV level is 8.9 and in June UV index is around 8.9.
Which months have the lowest UV levels in Hilton Head throughout the year?
The lowest UV levels in Hilton Head are in November, December and January. In November the average UV index is around 5.3, in December UV index is 5.3 and during January UV level is 5.4.