Weather Forecast for Hilton Head Island

South Carolina, United States of America

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Sunny

Current Weather - Hilton Head Island: 26°C

South Carolina, United States of America

Sunny

Feels like 26°C

Wind

6 km/h SSW

Humidity

42%

Pressure

1020 mb

UV Index

5

Visibility

14 km

Sunny

Sunny

Thursday, April 23, 2026

High

31°C

Low

14°C

Rain Chance

0%

Hourly Forecast

Sunny 27°C
18:00
Sunny 24°C
19:00
Clear 22°C
20:00
Clear 21°C
21:00
Clear 20°C
22:00
Clear 19°C
23:00
Apr 24

Day Statistics

Maximum Wind

20 km/h

Humidity

60%

Precipitation

0 mm

UV Index

6

Visibility

9 km

Rain Chance

0%

Snow Chance

0%

Sun & Moon

Sunrise

06:45 AM

Sunset

07:59 PM

Moonrise

12:16 PM

Moonset

02:05 AM

Moon Phase

Waxing Crescent

Moon Illumination

38%

Air Quality

PM2.5

7.9

μg/m³

PM10

10.7

μg/m³

NO₂

3.4

μg/m³

O₃

111.2

μg/m³

SO₂

2.7

μg/m³

CO

166.4

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Solar Radiation Data

Shortwave Radiation

611.96

Diffuse Radiation

71.84

DNI

717

GTI

449.92

Weather Alerts

Air Quality Alert issued April 22 at 1:57PM EDT by NWS Charleston SC

Allendale; Hampton; Inland Colleton; Dorchester; Inland Berkeley; Inland Jasper; Beaufort; Coastal Colleton; Charleston; Coastal Jasper; Tidal Berkeley Apr 22, 01:57 PM - Apr 24, 12:00 AM
Severity: Unknown Urgency: Unknown

The South Carolina Department of Environmental Services has issued an Air Quality Alert for fine particulates for Allendale, Beaufort, Berkeley, Charleston, Colleton, Dorchester, Hampton, and Jasper Counties in South Carolina. An Air Quality Alert means that the fine particulate concentrations within the specified areas may approach or exceed unhealthy standards for most of the general public. Southerly winds on the west side of high pressure centered just off the Southeast coast will continue transport smoke from the southern Georgia wildfires into South Carolina and the Central Savannah River Area. As of the early afternoon hours Wednesday, air quality was already deteriorating over the Central Savannah River Area and the Midlands. As stable conditions develop this evening and overnight, smoke is expected to expand in coverage and become more noticeable. Smoke from the wildfires is expected to continue to affect the region on Thursday. The department recommends that individuals with respiratory health issues limit time spent outdoors and/or move all activities indoors to avoid the smoke or fine particulates. Keep windows and doors closed. Run an air conditioner if you have one but keep the fresh-air intake closed and the filter clean to prevent outdoor smoke and fine particulates from getting inside. Please note that locations closest to the wildfire activity are more likely to experience smoke at any given time. For more information about fine particulates, please visit: https://fire.airnow.gov For more information about wildfires and prescribed burns, please visit: https://www.scfc.gov

Event: Air Quality Alert Certainty: Unknown Category: Met

Air Quality Alert issued April 22 at 6:59PM EDT by NWS Charleston SC

Allendale; Hampton; Inland Colleton; Dorchester; Inland Berkeley; Inland Jasper; Beaufort; Coastal Colleton; Charleston; Coastal Jasper; Tidal Berkeley Apr 22, 06:59 PM - Apr 24, 12:00 AM
Severity: Unknown Urgency: Unknown

The South Carolina Department of Environmental Services has issued an Air Quality Alert for fine particulates for Allendale, Beaufort, Berkeley, Charleston, Colleton, Dorchester, Hampton, and Jasper Counties in South Carolina. An Air Quality Alert means that the fine particulate concentrations within the specified areas may approach or exceed unhealthy standards for most of the general public. Southerly winds on the west side of high pressure centered just off the Southeast coast will continue transport smoke from the southern Georgia wildfires into South Carolina and the Central Savannah River Area. As of the early afternoon hours Wednesday, air quality was already deteriorating over the Central Savannah River Area and the Midlands. As stable conditions develop this evening and overnight, smoke is expected to expand in coverage and become more noticeable. Smoke from the wildfires is expected to continue to affect the region on Thursday. The department recommends that individuals with respiratory health issues limit time spent outdoors and/or move all activities indoors to avoid the smoke or fine particulates. Keep windows and doors closed. Run an air conditioner if you have one but keep the fresh-air intake closed and the filter clean to prevent outdoor smoke and fine particulates from getting inside. Please note that locations closest to the wildfire activity are more likely to experience smoke at any given time. For more information about fine particulates, please visit: https://fire.airnow.gov For more information about wildfires and prescribed burns, please visit: https://www.scfc.gov

Event: Air Quality Alert Certainty: Unknown Category: Met

Air Quality Alert issued April 22 at 6:57PM EDT by NWS Charleston SC

Allendale; Hampton; Inland Colleton; Dorchester; Inland Berkeley; Inland Jasper; Beaufort; Coastal Colleton; Charleston; Coastal Jasper; Tidal Berkeley Apr 22, 06:57 PM - Apr 23, 07:00 PM
Severity: Unknown Urgency: Unknown

The South Carolina Department of Environmental Services has issued an Air Quality Alert for fine particulates for Allendale, Beaufort, Berkeley, Charleston, Colleton, Dorchester, Hampton, and Jasper Counties in South Carolina. An Air Quality Alert means that the fine particulate concentrations within the specified areas may approach or exceed unhealthy standards for most of the general public. Southerly winds on the west side of high pressure centered just off the Southeast coast will continue to transport smoke from the southern Georgia wildfires into South Carolina and the Central Savannah River Area. As of the early afternoon hours Wednesday, air quality was already deteriorating over the Central Savannah River Area and the Midlands. As stable conditions develop overnight, smoke is expected to expand in coverage and become more noticeable. Smoke from the wildfires is expected to continue to affect the region on Thursday. The department recommends that individuals with respiratory health issues limit time spent outdoors and/or move all activities indoors to avoid the smoke or fine particulates. Keep windows and doors closed. Run an air conditioner if you have one but keep the fresh-air intake closed and the filter clean to prevent outdoor smoke and fine particulates from getting inside. Please note that locations closest to the wildfire activity are more likely to experience smoke at any given time. For more information about fine particulates, please visit: https://fire.airnow.gov For more information about wildfires and prescribed burns, please visit: https://www.scfc.gov

Event: Air Quality Alert Certainty: Unknown Category: Met