Sullivans Island, SC Weather

Updated: Wed Jun 18th 2025 7:30 AM EDT

Sunny

78^°F 25^°C

Feels Like 82^°F / 28^°C

Sullivans Island, SC weather condition is Sunny and 78°F.

Today's Weather in Sullivans Island,SC

The current weather in Sullivans Island SC as of 7:30 AM EDT on Wed Jun 18th 2025, has a sky condition of Sunny with the visibility of 8 mile(s) and the UV index at 0.2. It is 78 degrees fahrenheit but feels like 82 degrees. The barometric pressure is 30.09 - measured by inches of mercury - and is rising since its last observation. The humidity is 94 percent that's rising since the last report, with a dew point of 74 degrees fahrenheit which is rising. Wind direction is from the West-Southwest at 9.6 miles per hour, gusting at 14.9 miles per hour. Sunrise was at 6:11 AM and Sunset is at 8:30 PM. The moon phase is a Last Quarter moon rising at 1:07 AM. Thank you for listening to the weather report from LocalConditions.com!

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Barometer 30.09 inHg. rising
Humidity 94% rising
Heat Index 86°F
Wind from WSW. 9.6 mph
Wind Gust 14.9 miles per hour
Wind Chill 80°F
UV Index 0.2

Dew Point 74°F rising
Visibility 8 mi.
Sunrise 6:11 AM
Sunset 8:30 PM
Moonrise 1:07 AM
Moonset 1:14 PM
Moon Phase Last Quarter Moon

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Radar Alerts Next 48 Hours Traffic

Hourly Forecast - Next 8 hours

5 Day Forecast

Partly Cloudy

Partly Cloudy with a high of 91°F and a low of 78°F. Winds will be moderate, blowing around 18mph. Expect high humidity with levels above 80% to 81%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 91° \| Lo 78°	81%	0%	0%	17.2 mph

Intermittent Thunderstorms In The Area

Intermittent Thunderstorms In The Area with a high of 94°F and a low of 78°F. Winds will be moderate, blowing around 15mph. The humidity will be on the higher side, reaching around 74%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 94° \| Lo 78°	74%	0%	0%	15 mph

Patchy Rain Nearby

Patchy Rain Nearby with a high of 88°F and a low of 76°F. Probable rainfall forecasted, having an 87% chance with an estimated 0.01in. Winds will be moderate, blowing around 13mph. The humidity will be on the higher side, reaching around 73%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 88° \| Lo 76°	73%	87% \| est. 0.01in	0%	12.3 mph

Patchy Rain Nearby

Patchy Rain Nearby with a high of 88°F and a low of 77°F. Probable rainfall forecasted, having an 86% chance with an estimated 0.05in. Winds will be moderate, blowing around 11mph. The humidity will be on the higher side, reaching around 70%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 88° \| Lo 77°	70%	86% \| est. 0.05in	0%	10.3 mph

Patchy Rain Nearby

Patchy Rain Nearby with a high of 89°F and a low of 77°F. Probable rainfall forecasted, having a 75% chance with an estimated 0in. Winds will be moderate, blowing around 13mph. The humidity will be on the higher side, reaching around 72%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 89° \| Lo 77°	72%	75% \| est. 0in	0%	13 mph

Yesterday Tomorrow 5-Day

Weather Radar Map

Live Sullivans Island, SC weather with granular precipitation, radar, barometric pressure, temperatures and wind speeds for today thru Sunday, as you toggle through each map layer. Use the slider to move forward and back in time to view how current data and forecasts will affect the region; you can press or click on the map to show metrics available for each tab. The related timestamp is located above the Play button which will animate the weather forecast.

Hourly Temperature

The current temperature today is 78^°F. The morning temperature of 78°^F is lowest at 7am with the daytime high of 88°^F at 12pm and a low around 80°^F at 10pm is expected.