Water Temperature of the Intracoastal Waterway in North Myrtle Beach, SC
Current Water Temperature
Measurement Time: Friday, July 25, 2025, 12:15 PM EDT
Temperature Locations
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Local Points of Interest
Little River Swing BridgeSponsored Content
Station Name: AIW AT HIGHWAY 9 AT NIXONS CROSSROADS, SC
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: -30 feet / -9 meters
Nearest Address:
2104 Sea Mountain Hwy
North Myrtle Beach, SC 29582
Horry County
GPS Coordinates: 33.8515612, -78.6558483
Nearby Water Temperatures
Intracoastal Waterway, North Myrtle Beach, SC (4.2 mi)Waccamaw River, Longs, SC (5.4 mi)
Intracoastal Waterway, North Myrtle Beach, SC (6.7 mi)
Buck Creek, Longs, SC (7.9 mi)
Atlantic Ocean, Sunset Beach, NC (10.3 mi)
Waccamaw River, Conway, SC (13.8 mi)
Intracoastal Waterway, Myrtle Beach, SC (14.3 mi)
Atlantic Ocean, Myrtle Beach, SC (20.3 mi)
Crabtree Swamp, Conway, SC (22.1 mi)
Waccamaw River, Conway, SC (22.3 mi)
Waccamaw River, Bucksport, SC (28.8 mi)
Waccamaw River, Pawleys Island, SC (36.1 mi)
Little Pee Dee River, Galivants Ferry, SC (36.7 mi)
Atlantic Ocean, Cape Fear, NC (37.8 mi)
Waccamaw River, Pawleys Island, SC (41.0 mi)
Weather for North Myrtle Beach, South Carolina
Current Weather

Humidity: 75%
Feels Like: 105.4°F
Wind: S 10.3 mph
Wind Gusts: 12.1 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 4.4
Five Day Weather Forecast

Fri
H: 94°F
L: 79°F

Sat
H: 97°F
L: 80°F

Sun
H: 100°F
L: 84°F

Mon
H: 95°F
L: 76°F

Tue
H: 88°F
L: 76°F
Air Quality
Nitrogen Dioxide: 6.11 μg/m3
Sulphur Dioxide: 4.07 μg/m3
Ozone: 67 μg/m3
Astronomical
Sun Transit: 1:21 PM
Sunset: 8:21 PM
Daylight: 13 hrs 59 mins
Moon Transit: 2:14 PM
Moonset: 9:16 PM
Moon Phase: New
Moon Illumination: 3.1%
Best Times for Fishing or Hunting
Major Periods
2:52 AM - 5:22 AM1:44 PM - 4:14 PM
Minor Periods
8:46 PM - 10:16 PM6:32 AM - 8:02 AM
Action Rating: 5 out of 5
Heat Advisory issued July 25 at 1:11PM EDT until July 25 at 8:00PM EDT by NWS Wilmington NC
Effective: Fri July 25, 2025, 1:11 PM
Expires: Fri July 25, 2025, 8:00 PM
* WHAT...For the Heat Advisory, heat index values up to 107. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 111 expected. * WHERE...Portions of southeast North Carolina and northeast South Carolina. * WHEN...For the Heat Advisory, until 8 PM EDT this evening. For the Extreme Heat Warning, from 11 AM Saturday to 8 PM EDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sunshine, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Extreme Heat Warning issued July 25 at 1:11PM EDT until July 27 at 8:00PM EDT by NWS Wilmington NC
Effective: Fri July 25, 2025, 1:11 PM
Expires: Fri July 25, 2025, 8:00 PM
* WHAT...For the Heat Advisory, heat index values up to 107. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 111 expected. * WHERE...Portions of southeast North Carolina and northeast South Carolina. * WHEN...For the Heat Advisory, until 8 PM EDT this evening. For the Extreme Heat Warning, from 11 AM Saturday to 8 PM EDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sunshine, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Heat Advisory issued July 25 at 1:11PM EDT until July 25 at 8:00PM EDT by NWS Wilmington NC
Effective: Fri July 25, 2025, 1:11 PM
Expires: Fri July 25, 2025, 8:00 PM
* WHAT...For the Heat Advisory, heat index values up to 107. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 111 expected. * WHERE...Portions of southeast North Carolina and northeast South Carolina. * WHEN...For the Heat Advisory, until 8 PM EDT this evening. For the Extreme Heat Warning, from 11 AM Saturday to 8 PM EDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sunshine, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Extreme Heat Warning issued July 25 at 1:11PM EDT until July 27 at 8:00PM EDT by NWS Wilmington NC
Effective: Fri July 25, 2025, 1:11 PM
Expires: Fri July 25, 2025, 8:00 PM
* WHAT...For the Heat Advisory, heat index values up to 107. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 111 expected. * WHERE...Portions of southeast North Carolina and northeast South Carolina. * WHEN...For the Heat Advisory, until 8 PM EDT this evening. For the Extreme Heat Warning, from 11 AM Saturday to 8 PM EDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sunshine, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Heat Advisory issued July 25 at 1:11PM EDT until July 25 at 8:00PM EDT by NWS Wilmington NC
Effective: Fri July 25, 2025, 1:11 PM
Expires: Fri July 25, 2025, 8:00 PM
* WHAT...For the Heat Advisory, heat index values up to 107. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 111 expected. * WHERE...Portions of southeast North Carolina and northeast South Carolina. * WHEN...For the Heat Advisory, until 8 PM EDT this evening. For the Extreme Heat Warning, from 11 AM Saturday to 8 PM EDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sunshine, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Weather Forecast
Average Temperature: 84°F
Average Humidity: 81%
Wind: 13 mph
UV Index: 2.5
Air Quality
Nitrogen Dioxide: 6.26 μg/m3
Sulphur Dioxide: 3.8 μg/m3
Ozone: 67.88 μg/m3
Astronomical
Sun Transit: 1:21 PM
Sunset: 8:21 PM
Daylight: 13 hrs 59 mins
Moon Transit: 2:14 PM
Moonset: 9:16 PM
Moon Phase: New
Moon Illumination: 3.1%
Best Times for Fishing or Hunting
Major Periods
2:52 AM - 5:22 AM1:44 PM - 4:14 PM
Minor Periods
8:46 PM - 10:16 PM6:32 AM - 8:02 AM
Action Rating: 5 out of 5
Weather Forecast
Average Temperature: 86.1°F
Average Humidity: 76%
Wind: 11.9 mph
UV Index: 2.7
Air Quality
Nitrogen Dioxide: 5.83 μg/m3
Sulphur Dioxide: 4.26 μg/m3
Ozone: 80.24 μg/m3
Astronomical
Sun Transit: 1:21 PM
Sunset: 8:20 PM
Daylight: 13 hrs 57 mins
Moon Transit: 3:02 PM
Moonset: 9:47 PM
Moon Phase: New
Moon Illumination: 0.7%
Best Times for Fishing or Hunting
Major Periods
3:42 AM - 6:12 AM2:32 PM - 5:02 PM
Minor Periods
9:17 PM - 10:47 PM7:39 AM - 9:09 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 88.9°F
Average Humidity: 73%
Wind: 10.7 mph
UV Index: 2.8
Air Quality
Nitrogen Dioxide: 6.3 μg/m3
Sulphur Dioxide: 4.63 μg/m3
Ozone: 116.36 μg/m3
Astronomical
Sun Transit: 1:21 PM
Sunset: 8:19 PM
Daylight: 13 hrs 56 mins
Moon Transit: 3:47 PM
Moonset: 10:14 PM
Moon Phase: New
Moon Illumination: 3.8%
Best Times for Fishing or Hunting
Major Periods
4:28 AM - 6:58 AM3:17 PM - 5:47 PM
Minor Periods
9:44 PM - 11:14 PM8:41 AM - 10:11 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 87.7°F
Average Humidity: 73%
Wind: 19.2 mph
UV Index: 2.8
Air Quality
Nitrogen Dioxide: 5.88 μg/m3
Sulphur Dioxide: 5.3 μg/m3
Ozone: 130.88 μg/m3
Astronomical
Sun Transit: 1:21 PM
Sunset: 8:18 PM
Daylight: 13 hrs 54 mins
Moon Transit: 4:29 PM
Moonset: 10:39 PM
Moon Phase: Waxing Crescent
Moon Illumination: 9.3%
Best Times for Fishing or Hunting
Major Periods
5:11 AM - 7:41 AM3:59 PM - 6:29 PM
Minor Periods
10:09 PM - 11:39 PM9:42 AM - 11:12 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 81.6°F
Average Humidity: 78%
Wind: 11.6 mph
UV Index: 0.1
Air Quality
Nitrogen Dioxide: 11.48 μg/m3
Sulphur Dioxide: 2.42 μg/m3
Ozone: 80.69 μg/m3
Astronomical
Sun Transit: 1:21 PM
Sunset: 8:18 PM
Daylight: 13 hrs 53 mins
Moon Transit: 5:09 PM
Moonset: 11:02 PM
Moon Phase: Waxing Crescent
Moon Illumination: 16.9%
Best Times for Fishing or Hunting
Major Periods
5:52 AM - 8:22 AM4:39 PM - 7:09 PM
Minor Periods
12:00 AM - 12:00 AM10:39 AM - 12:09 AM
Action Rating: 2 out of 5