June weather forecastHilton Head Island, SC
June
Weather in June
June in Hilton Head Island ushers in the onset of the peak summer season. Following May, the month experiences an increase in temperature, intensifying the summer quotient. Hilton Head Island jumps into full summer swing with long daylight hours ensuring ample time for beach escapades and outdoor games. Frequent showers become a common occurrence but they hardly damp out the summer enthusiasm. Here, the month records the highest average temperatures from 85.6°F (29.8°C) to 75.6°F (24.2°C), affirming the arrival of true summer.Temperature
Hilton Head Island perceives a slight temperature ascent during June, with average high-temperatures adjusting from 79.2°F (26.2°C) in May to a still warm 85.6°F (29.8°C). Hilton Head Island's nighttime temperature in June drops to an average of 75.6°F (24.2°C).Heat index
The heat index value during June is appraised at a sweltering 96.8°F (36°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', quantifies the warmth felt when relative humidity is considered. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
In Hilton Head Island, the average relative humidity in June is 75%.Rainfall
In Hilton Head Island, South Carolina, during June, the rain falls for 21.2 days and regularly aggregates up to 3.94" (100mm) of precipitation. Throughout the year, in Hilton Head Island, there are 175.3 rainfall days, and 32.28" (820mm) of precipitation is accumulated.Snowfall
February through December are months without snowfall in Hilton Head Island.Ocean temperature
In June, the average ocean temperature in Hilton Head Island is 79.2°F (26.2°C).Note: Water temperature ranging from 77°F (25°C) to 84.2°F (29°C) is recognized as warm and pleasant by all, making water activities comfortable and delightful for long durations.
Daylight
With an average of 14h and 12min of daylight, June has the longest days of the year.On the first day of the month, sunrise is at 6:16 am and sunset at 8:25 pm. On the last day of June, in Hilton Head Island, sunrise is at 6:19 am and sunset at 8:33 pm EDT.
Sunshine
The months with the most sunshine are June and July, with an average of 11h of sunshine.UV index
May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 7 in June leads to these guidelines:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be careful! The Sun's UV radiation is accentuated by reflecting off sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Hilton Head Island, SC
- Average high temperature in June: 85.6°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 June: 75.6°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 June
Hilton Head Island, SC
- Average pressure in June: 29.98"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 June
Hilton Head Island, SC
- Average wind speed in June: 8.3mph
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 June
Hilton Head Island, SC
- Average humidity in June: 75%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is January (72%).
Average rainfall in June
Hilton Head Island, SC
- Average rainfall in June: 3.94"
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 June
Hilton Head Island, SC
- Average rainfall days in June: 21.2 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 June
Hilton Head Island, SC
- Average snowfall in June: 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 June
Hilton Head Island, SC
- Average snowfall days in June: 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 June
Hilton Head Island, SC
- Average sea temperature in June: 79.2°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 June /
Average sunshine in June
Hilton Head Island, SC
- Average daylight in June: 14h and 12min
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 June: 11h and 0min
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 June
Hilton Head Island, SC
- Average sunshine days in June: 6.8 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 June
Hilton Head Island, SC
- Average UV index in June: 7
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 June
Hilton Head Island, SC
- Average cloud cover in June: 25
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 June
Hilton Head Island, SC
- Average visibility in June: 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).
