Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average sea temperature in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
The arrival of October in Hilton Head Island suggests a slight decrease in the average high-temperature, moving from 83.3°F (28.5°C) in September to a still moderately hot 75.9°F (24.4°C). Hilton Head Island records an average temperature drop to an enjoyable 65.3°F (18.5°C) in October.Humidity
In October, the average relative humidity in Hilton Head Island, South Carolina, is 73%.Rainfall
In Hilton Head Island, in October, during 10.9 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. In Hilton Head Island, during the entire year, the rain falls for 175.3 days and collects up to 32.28" (820mm) of precipitation.Snowfall
In Hilton Head Island, South Carolina, snow does not fall in February through December.Ocean temperature
In Hilton Head Island, in October, the average water temperature is 77°F (25°C).Note: For swimming, diving, and enjoying other water activities, the range of 77°F (25°C) to 84.2°F (29°C) in water temperature is considered ideal, offering pleasure for extended periods without discomfort.
Daylight
In Hilton Head Island, the average length of the day in October is 11h and 22min.On the first day of October, sunrise is at 7:17 am and sunset at 7:07 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 6:33 pm EDT.
Sunshine
The average sunshine in October is 6.8h.UV index
In October, the average daily maximum UV index in Hilton Head Island, South Carolina, is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum UV index of 5 in October translates into the following recommendations:
Take precautions - Protection against sunburn is recommended. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be careful! The Sun's UV radiation is accentuated by reflecting off sand and water.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature in Hilton Head Island?
What is the average humidity in October in Hilton Head Island?
How many days does it rain in October in Hilton Head Island?
When it does not snow in Hilton Head Island?
How warm is the water in October in Hilton Head Island?
How many hours of daylight does Hilton Head Island have in October?
When are sunrise and sunset in October in Hilton Head Island?
How long on average sun shines in October in Hilton Head Island?
What is the UV index reading in October in Hilton Head Island?
Average temperature in October
Hilton Head Island, SC
- Average high temperature in October: 75.9°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (57.4°F).
- Average low temperature in October: 65.3°F
The month with the highest average low temperature is July (77.9°F).
The coldest month (with the lowest average low temperature) is January (46°F).
Average pressure in October
Hilton Head Island, SC
- Average pressure in October: 30.02"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in October
Hilton Head Island, SC
- Average wind speed in October: 9.2mph
The windiest months (with the highest average wind speed) are January, March and April (9.6mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).
Average humidity in October
Hilton Head Island, SC
- Average humidity in October: 73%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is January (72%).
Average rainfall in October
Hilton Head Island, SC
- Average rainfall in October: 2.68"
The wettest month (with the highest rainfall) is August (6.06").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in October
Hilton Head Island, SC
- Average rainfall days in October: 10.9 days
The month with the highest number of rainy days is August (25 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in October
Hilton Head Island, SC
- Average snowfall in October: 0"
The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in October
Hilton Head Island, SC
- Average snowfall days in October: 0 days
The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in October
Hilton Head Island, SC
- Average sea temperature in October: 77°F
The best month for swimming (with the highest average sea temperature) is August (83.5°F).
The coldest month (with the lowest average sea temperature) is February (57.5°F).
Average daylight in October /
Average sunshine in October
Hilton Head Island, SC
- Average daylight in October: 11h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in October: 6h and 5min
The months with the most sunshine are June and July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in October
Hilton Head Island, SC
- Average sunshine days in October: 17.5 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is August (2.8 days).
Average UV index in October
Hilton Head Island, SC
- Average UV index in October: 5
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in October
Hilton Head Island, SC
- Average cloud cover in October: 26
The months with the most cloud cover are February and December (Cloud cover 38).
The months with the least cloud cover are June and July (Cloud cover 25).
Average visibility in October
Hilton Head Island, SC
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Hilton Head Island, South Carolina, USA
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