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Sullivans Island, SC Weather Conditions

Updated: Thu Jun 18th 2026 12:45 AM EDT

Clear

79^°F 26^°C

Feels Like 84^°F / 29^°C

Sullivans Island, SC weather condition is Clear and 79°F.

Today's Weather in Sullivans Island,SC

The current weather in Sullivans Island SC as of 12:45 AM EDT on Thu Jun 18th 2026, has a sky condition of Clear with the visibility of 9 mile(s). It is 79 degrees fahrenheit but feels like 84 degrees. The barometric pressure is 29.94 - measured by inches of mercury - and is steady since its last observation. The humidity is 89 percent that's steady since the last report, with a dew point of 72 degrees fahrenheit which is steady. Wind direction is from the Southwest at 9.8 miles per hour, gusting at 17.9 miles per hour. Sunrise is at 6:11 AM and Sunset is at 8:29 PM. The moon phase is a Waxing Crescent moon rising at 9:41 AM. Thank you for listening to the weather report from LocalConditions.com!

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Sun & Moon

Sun

Sunrise: 6:11 AM

Sunset: 8:29 PM

As of:

Moon

Moonrise: 9:41 AM

Moonset: 11:43 PM

Phase: Waxing Crescent Moon

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Radar Alerts Next 48 Hours Traffic

Hourly Forecast - Next 8 hours

Next 5 Days...

Scattered Rain

Scattered Rain with a high of 92°F and a low of 78°F. Probable rainfall forecasted, having a 57% chance with an estimated 0.06in. Winds will be strong at speeds peaking at 23mph. The humidity will be on the higher side, reaching around 78%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 92° \| Lo 78°	78%	57% \| est. 0.06in	0%	23 mph

Moderate Rain

Moderate Rain with a high of 85°F and a low of 76°F. Probable rainfall forecasted, having a 79% chance with an estimated 0.27in. Winds will be strong at speeds peaking at 23mph. The humidity will be on the higher side, reaching around 78%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 85° \| Lo 76°	78%	79% \| est. 0.27in	0%	22.6 mph

Sunny

Sunny with a high of 84°F and a low of 76°F. 17%% possible chance of rain predicted with an estimated 0in. Winds will be moderate, blowing around 12mph. The humidity will be on the higher side, reaching around 73%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 84° \| Lo 76°	73%	17% \| est. 0in	0%	11.4 mph

Scattered Rain

Scattered Rain with a high of 84°F and a low of 78°F. 23%% possible chance of rain predicted 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 84° \| Lo 78°	73%	23% \| est. 0.01in	0%	12.1 mph

Scattered Rain

Scattered Rain with a high of 88°F and a low of 76°F. 40%% possible chance of rain predicted with an estimated 0.03in. Winds will be moderate, blowing around 17mph. The humidity will be on the higher side, reaching around 74%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 88° \| Lo 76°	74%	40% \| est. 0.03in	0%	17 mph

Yesterday 5-Day Wind

Weather Radar Map

Hourly Temperature

The current temperature today is 79^°F. The morning temperature of 78°^F is lowest at 2am with the daytime high of 89°^F at 11am and a low around 79°^F at 11pm is expected.

Hourly Barometric Pressure

The highest pressure today is 29.99^inHg at 9am and lowest being 29.91^inHg at 4am.

Hourly Wind Speeds

The fastest wind is reported to be 23^mph at 10pm, while the slowest is 9.8^mph around 1am; expect wind gusts peaking 42.9^mph at 10pm. View live wind conditions in Sullivans Island

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