Water Temperature of the Intracoastal Waterway in North Myrtle Beach, SC

Current Water Temperature

82.4°F

Measurement Time: Thursday, August 14, 2025, 8:15 PM EDT

Temperature Locations

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Local Points of Interest

Little River Swing Bridge

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Intracoastal Waterway

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

77.5°F
Partly cloudy
Conditions: Partly cloudy
Humidity: 96%
Feels Like: 83.4°F
Wind: W 5.8 mph
Wind Gusts: 10.3 mph
Pressure: 30 in
Precipitation: 0 in
Cloud Cover: 50%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Patchy rain nearby
Fri
H: 93°F
L: 78°F
Moderate rain
Sat
H: 92°F
L: 77°F
Sunny
Sun
H: 91°F
L: 75°F
Sunny
Mon
H: 87°F
L: 75°F
Patchy rain nearby
Tue
H: 86°F
L: 74°F

Air Quality

PM2.5: 10.55 μg/m3
PM10: 10.73 μg/m3
Carbon Monoxide: 277.5 μg/m3
Nitrogen Dioxide: 8.7 μg/m3
Sulphur Dioxide: 5.18 μg/m3
Ozone: 52 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 1:19 PM
Sunset: 8:01 PM
Daylight: 13 hrs 24 mins
Moonrise: 12:07 AM
Moon Transit: 6:12 AM
Moonset: 1:27 PM
Moon Phase: Last Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

5:42 AM - 8:12 AM
7:44 PM - 10:14 PM

Minor Periods

12:57 AM - 2:27 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Flood Warning issued August 14 at 11:01AM EDT by NWS Wilmington NC

Effective: Thu August 14, 2025, 11:01 AM
Expires: Fri August 15, 2025, 5:15 AM

...The Flood Warning continues for the following rivers in North Carolina...South Carolina... Cape Fear River At William O Huske Lock And Dam 3 affecting Bladen and Cumberland Counties. Waccamaw River At Conway affecting Horry County. Waccamaw River near Longs affecting Columbus, Brunswick and Horry Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Waccamaw River near Longs. * WHEN...Until further notice. * IMPACTS...At 13.0 feet, A few homes may be isolated by flood waters near the river at the end of Big Gutter Lane and Doodle Hill Lane. Flooding on Red Bluff Road worsens. The end of Vera Lane may be isolated by flood waters. Aberdeen Country Club parking lot may flood. In North Carolina, River Road in Pireway may begin to flood. * ADDITIONAL DETAILS... - At 10:00 AM EDT Thursday the stage was 12.5 feet. - Forecast...The river is expected to rise to a crest of 12.9 feet tomorrow evening. - Flood stage is 12.0 feet. - weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information. Caution is urged when walking near riverbanks. Additional information is available at water.noaa.gov/wfo/ilm . The next statement will be issued by late tonight.


Flood Warning issued August 14 at 11:01AM EDT by NWS Wilmington NC

Effective: Thu August 14, 2025, 11:01 AM
Expires: Fri August 15, 2025, 5:15 AM

...The Flood Warning continues for the following rivers in North Carolina...South Carolina... Cape Fear River At William O Huske Lock And Dam 3 affecting Bladen and Cumberland Counties. Waccamaw River At Conway affecting Horry County. Waccamaw River near Longs affecting Columbus, Brunswick and Horry Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Waccamaw River at Conway. * WHEN...Until further notice. * IMPACTS...At 12.0 feet, Flooding will worsen in Lees Landing, Riverfront South, Pitch Landing, and Savannah Bluff. Flooding will also worsen along Waccamaw CIR, Riverside DR, and in low areas along Gray Oak DR. Flood waters will begin to affect Black Moss DR and Cypress Flat. Depot RD, New RD, and Jackson Bluff RD may begin to flood. The lowest homes on Riverside DR north of Conway may be affected. Witch Golf Course may begin to flood. Swamps will be heavily flooded. * ADDITIONAL DETAILS... - At 10:15 AM EDT Thursday the stage was 11.4 feet. - Forecast...The river is expected to rise to 11.7 feet early Sunday morning. Additional rises are possible thereafter. - Flood stage is 11.0 feet. - weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information. Caution is urged when walking near riverbanks. Additional information is available at water.noaa.gov/wfo/ilm . The next statement will be issued by late tonight.


Flood Warning issued August 14 at 11:01AM EDT by NWS Wilmington NC

Effective: Thu August 14, 2025, 11:01 AM
Expires: Fri August 15, 2025, 5:15 AM

...The Flood Warning continues for the following rivers in North Carolina...South Carolina... Cape Fear River At William O Huske Lock And Dam 3 affecting Bladen and Cumberland Counties. Waccamaw River At Conway affecting Horry County. Waccamaw River near Longs affecting Columbus, Brunswick and Horry Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Waccamaw River near Longs. * WHEN...Until further notice. * IMPACTS...At 13.0 feet, A few homes may be isolated by flood waters near the river at the end of Big Gutter Lane and Doodle Hill Lane. Flooding on Red Bluff Road worsens. The end of Vera Lane may be isolated by flood waters. Aberdeen Country Club parking lot may flood. In North Carolina, River Road in Pireway may begin to flood. * ADDITIONAL DETAILS... - At 10:00 AM EDT Thursday the stage was 12.5 feet. - Forecast...The river is expected to rise to a crest of 12.9 feet tomorrow evening. - Flood stage is 12.0 feet. - weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information. Caution is urged when walking near riverbanks. Additional information is available at water.noaa.gov/wfo/ilm . The next statement will be issued by late tonight.


Flood Warning issued August 14 at 11:01AM EDT by NWS Wilmington NC

Effective: Thu August 14, 2025, 11:01 AM
Expires: Fri August 15, 2025, 5:15 AM

...The Flood Warning continues for the following rivers in North Carolina...South Carolina... Cape Fear River At William O Huske Lock And Dam 3 affecting Bladen and Cumberland Counties. Waccamaw River At Conway affecting Horry County. Waccamaw River near Longs affecting Columbus, Brunswick and Horry Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Waccamaw River at Conway. * WHEN...Until further notice. * IMPACTS...At 12.0 feet, Flooding will worsen in Lees Landing, Riverfront South, Pitch Landing, and Savannah Bluff. Flooding will also worsen along Waccamaw CIR, Riverside DR, and in low areas along Gray Oak DR. Flood waters will begin to affect Black Moss DR and Cypress Flat. Depot RD, New RD, and Jackson Bluff RD may begin to flood. The lowest homes on Riverside DR north of Conway may be affected. Witch Golf Course may begin to flood. Swamps will be heavily flooded. * ADDITIONAL DETAILS... - At 10:15 AM EDT Thursday the stage was 11.4 feet. - Forecast...The river is expected to rise to 11.7 feet early Sunday morning. Additional rises are possible thereafter. - Flood stage is 11.0 feet. - weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information. Caution is urged when walking near riverbanks. Additional information is available at water.noaa.gov/wfo/ilm . The next statement will be issued by late tonight.


Flood Warning issued August 14 at 11:01AM EDT by NWS Wilmington NC

Effective: Thu August 14, 2025, 11:01 AM
Expires: Fri August 15, 2025, 5:15 AM

...The Flood Warning continues for the following rivers in North Carolina...South Carolina... Cape Fear River At William O Huske Lock And Dam 3 affecting Bladen and Cumberland Counties. Waccamaw River At Conway affecting Horry County. Waccamaw River near Longs affecting Columbus, Brunswick and Horry Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Waccamaw River near Longs. * WHEN...Until further notice. * IMPACTS...At 13.0 feet, A few homes may be isolated by flood waters near the river at the end of Big Gutter Lane and Doodle Hill Lane. Flooding on Red Bluff Road worsens. The end of Vera Lane may be isolated by flood waters. Aberdeen Country Club parking lot may flood. In North Carolina, River Road in Pireway may begin to flood. * ADDITIONAL DETAILS... - At 10:00 AM EDT Thursday the stage was 12.5 feet. - Forecast...The river is expected to rise to a crest of 12.9 feet tomorrow evening. - Flood stage is 12.0 feet. - weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information. Caution is urged when walking near riverbanks. Additional information is available at water.noaa.gov/wfo/ilm . The next statement will be issued by late tonight.


Friday, August 15, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 84°F
Average Humidity: 85%
Chance of Rain: 83%
Wind: 6.5 mph
UV Index: 2.5

Air Quality

AQI: 1 - Good
PM2.5: 11.03 μg/m3
PM10: 11.29 μg/m3
Carbon Monoxide: 265.59 μg/m3
Nitrogen Dioxide: 8.05 μg/m3
Sulphur Dioxide: 3.02 μg/m3
Ozone: 73.68 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 1:19 PM
Sunset: 8:01 PM
Daylight: 13 hrs 24 mins
Moonrise: 12:07 AM
Moon Transit: 6:12 AM
Moonset: 1:27 PM
Moon Phase: Last Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

5:42 AM - 8:12 AM
7:44 PM - 10:14 PM

Minor Periods

12:57 AM - 2:27 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Saturday, August 16, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 83.1°F
Average Humidity: 80%
Chance of Rain: 77%
Wind: 8.1 mph
UV Index: 2.5

Air Quality

AQI: 2 - Moderate
PM2.5: 16.69 μg/m3
PM10: 16.94 μg/m3
Carbon Monoxide: 303.47 μg/m3
Nitrogen Dioxide: 11.92 μg/m3
Sulphur Dioxide: 1.29 μg/m3
Ozone: 73.04 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 1:18 PM
Sunset: 8:00 PM
Daylight: 13 hrs 22 mins
Moonrise: 12:46 AM
Moon Transit: 7:08 AM
Moonset: 2:40 PM
Moon Phase: Last Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

6:38 AM - 9:08 AM
8:42 PM - 11:12 PM

Minor Periods

2:10 PM - 3:40 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Sunday, August 17, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 82.3°F
Average Humidity: 80%
Chance of Rain: 0%
Wind: 10.3 mph
UV Index: 2.4

Air Quality

AQI: 1 - Good
PM2.5: 14.76 μg/m3
PM10: 15.55 μg/m3
Carbon Monoxide: 352.31 μg/m3
Nitrogen Dioxide: 10.06 μg/m3
Sulphur Dioxide: 0.91 μg/m3
Ozone: 57.28 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 1:18 PM
Sunset: 7:59 PM
Daylight: 13 hrs 20 mins
Moonrise: 12:32 AM
Moon Transit: 8:08 AM
Moonset: 3:50 PM
Moon Phase: Last Quarter
Moon Illumination: 28.4%

Best Times for Fishing or Hunting

Major Periods

7:38 AM - 10:08 AM
12:00 AM - 12:00 AM

Minor Periods

3:20 PM - 4:50 PM
12:02 AM - 1:32 AM

Action Rating: 2 out of 5

Monday, August 18, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 81.5°F
Average Humidity: 75%
Chance of Rain: 0%
Wind: 8.5 mph
UV Index: 2.5

Air Quality

AQI: 2 - Moderate
PM2.5: 20.29 μg/m3
PM10: 24.72 μg/m3
Carbon Monoxide: 456.1 μg/m3
Nitrogen Dioxide: 18.23 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 50.85 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 1:18 PM
Sunset: 7:57 PM
Daylight: 13 hrs 18 mins
Moonrise: 1:26 AM
Moon Transit: 9:10 AM
Moonset: 4:54 PM
Moon Phase: Last Quarter
Moon Illumination: 18.9%

Best Times for Fishing or Hunting

Major Periods

8:40 AM - 11:10 AM
12:00 AM - 12:00 AM

Minor Periods

4:24 PM - 5:54 PM
12:56 AM - 2:26 AM

Action Rating: 2 out of 5

Tuesday, August 19, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 78.4°F
Average Humidity: 79%
Chance of Rain: 88%
Wind: 9.2 mph
UV Index: 0.1

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 1:18 PM
Sunset: 7:56 PM
Daylight: 13 hrs 16 mins
Moonrise: 2:29 AM
Moon Transit: 10:11 AM
Moonset: 5:50 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:41 AM - 12:11 AM

Minor Periods

5:20 PM - 6:50 PM
1:59 AM - 3:29 AM

Action Rating: 2 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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