Water Temperature of the Cooper River in Mount Pleasant, SC

Current Water Temperature

87.1°F

Measurement Time: Monday, July 20, 2026, 6:15 AM EDT

Temperature Locations

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Local Points of Interest

Arthur Ravenel Jr Bridge; Mount Pleasant Pier; Mount Pleasant Memorial Waterfront Park; Drum Island; Charleston, SC

Cooper River

Station Name: COOPER RIVER AT U.S. HWY 17 AT CHARLESTON, SC
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
US Hwy 17
Mount Pleasant, SC 29464
Charleston County

GPS Coordinates: 32.80239835, -79.9100869

Nearby Water Temperatures

Cooper River, Charleston, SC (1.7 mi)
Cooper River, Charleston, SC (1.7 mi)
Cooper River, Charleston, SC (1.7 mi)
Wando River, Mount Pleasant, SC (4 mi)
Cooper River, North Charleston, SC (4.4 mi)
Cooper River, North Charleston, SC (6.8 mi)
Ashley River, North Charleston, SC (7 mi)
Wando River, Charleston, SC (9.6 mi)
Cooper River, Goose Creek, SC (12.5 mi)
Cooper River, Moncks Corner, SC (14.7 mi)
Ashley River, Summerville, SC (16.4 mi)
Atlantic Ocean, Isle of Palms, SC (16.9 mi)
Cooper River, Goose Creek, SC (17.7 mi)
Chicken Creek, Goose Creek, SC (17.8 mi)
West Branch Cooper River, Moncks Corner, SC (20.2 mi)

Weather for Mount Pleasant, South Carolina

Current Weather

87.8°F
Sunny
Sunny
99.2°F
96.6°F
79%
SW 11.6 mph
14 mph
86.7°F
75.7°F
0 in
0%
8 mi
1015 mbar
4.5

Five Day Weather Forecast

Sunny
Mon
H: 94°F
L: 80°F
Patchy rain nearby
Tue
H: 90°F
L: 82°F
Partly Cloudy
Wed
H: 91°F
L: 81°F
Patchy rain nearby
Thu
H: 90°F
L: 79°F
Sunny
Fri
H: 85°F
L: 76°F

Air Quality

AQI: 1 - Good
PM2.5: 7.4 μg/m3
PM10: 10.9 μg/m3
Carbon Monoxide: 92 μg/m3
Nitrogen Dioxide: 1.5 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 67 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 1:26 PM
Sunset: 8:27 PM
Daylight: 14 hrs 1 mins
Moonrise: 1:01 PM
Moon Transit: 6:40 PM
Moonset: 12:46 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

7:12 AM - 9:42 AM
6:10 PM - 8:40 PM

Minor Periods

12:31 AM - 2:01 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Dense Smoke Advisory issued July 19 at 10:33PM EDT until July 20 at 10:00AM EDT by NWS Charleston SC

Effective: Sun July 19, 2026, 10:33 PM
Expires: Mon July 20, 2026, 6:45 AM

* WHAT...Visibility less than one mile in dense smoke. * WHERE...Inland Berkeley County. * WHEN...Until 10 AM EDT Monday. * IMPACTS...Thick smoke will make travel difficult and could cause respiratory difficulty. The United States Forest Service may close roads overnight, including portions of Highway 45 in northeast Berkeley County. * ADDITIONAL DETAILS...The Horse Island Wildfire burning in the Francis Marion National Forest near Shulerville is producing widespread dense smoke with visibility 1 mile or less across portions of northeast Berkeley County. Visibilities may lower to 1/4 mile or less overnight as winds diminish and the smoke lowers closer to the ground. Heed any evacuation orders from local, state or federal officials.

Persons with respiratory illnesses should remain indoors to avoid inhaling smoke.


Dense Smoke Advisory issued July 20 at 2:16AM EDT until July 20 at 10:00AM EDT by NWS Charleston SC

Effective: Mon July 20, 2026, 2:16 AM
Expires: Mon July 20, 2026, 10:00 AM

* WHAT...Visibility 1 mile or less in dense smoke. * WHERE...Inland Berkeley County. * WHEN...Until 10 AM EDT this morning. * IMPACTS...Thick smoke will make travel difficult and could cause respiratory difficulty. The United States Forest Service may close roads overnight, including portions of Highway 45 in northeast Berkeley County. * ADDITIONAL DETAILS...The Horse Island Wildfire burning in the Francis Marion National Forest near Shulerville is producing widespread dense smoke with visibility 1 mile or less across portions of northeast Berkeley County. Visibilities may lower to 1/4 mile or less overnight as winds diminish and the smoke lowers closer to the ground. Heed any evacuation orders from local, state or federal officials.

Persons with respiratory illnesses should remain indoors to avoid inhaling smoke.


Monday, July 20, 2026

Weather Forecast

Sunny
93.7°F
80.4°F
85.4°F
77%
0 in
8%
0%
15.9 mph
10


Air Quality

AQI: 1 - Good
PM2.5: 11.13 μg/m3
PM10: 16.43 μg/m3
Carbon Monoxide: 107.42 μg/m3
Nitrogen Dioxide: 1.89 μg/m3
Sulphur Dioxide: 0.71 μg/m3
Ozone: 65.92 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 1:26 PM
Sunset: 8:27 PM
Daylight: 14 hrs 1 mins
Moonrise: 1:01 PM
Moon Transit: 6:40 PM
Moonset: 12:46 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

7:12 AM - 9:42 AM
6:10 PM - 8:40 PM

Minor Periods

12:31 AM - 2:01 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, July 21, 2026

Weather Forecast

Patchy rain nearby
89.7°F
82°F
85.4°F
71%
0.21 in
68%
0%
17.4 mph
10


Air Quality

AQI: 1 - Good
PM2.5: 15.41 μg/m3
PM10: 22.95 μg/m3
Carbon Monoxide: 111.29 μg/m3
Nitrogen Dioxide: 1.66 μg/m3
Sulphur Dioxide: 0.82 μg/m3
Ozone: 75.88 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 1:26 PM
Sunset: 8:26 PM
Daylight: 13 hrs 59 mins
Moonrise: 2:00 PM
Moon Transit: 7:24 PM
Moonset: 12:14 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

7:55 AM - 10:25 AM
6:54 PM - 9:24 PM

Minor Periods

1:30 PM - 3:00 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, July 22, 2026

Weather Forecast

Partly Cloudy
91.2°F
81.4°F
85.8°F
70%
0.06 in
57%
0%
18.1 mph
11


Air Quality

AQI: 1 - Good
PM2.5: 13.99 μg/m3
PM10: 20.42 μg/m3
Carbon Monoxide: 101.04 μg/m3
Nitrogen Dioxide: 1.9 μg/m3
Sulphur Dioxide: 0.75 μg/m3
Ozone: 70.21 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 1:26 PM
Sunset: 8:25 PM
Daylight: 13 hrs 58 mins
Moonrise: 2:59 PM
Moon Transit: 8:10 PM
Moonset: 12:44 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

8:40 AM - 11:10 AM
7:40 PM - 10:10 PM

Minor Periods

2:29 PM - 3:59 PM
12:14 AM - 1:44 AM

Action Rating: 2 out of 5

Thursday, July 23, 2026

Weather Forecast

Patchy rain nearby
90°F
78.6°F
84.6°F
76%
1.19 in
78%
0%
16.1 mph
9.5


Air Quality

AQI: 1 - Good
PM2.5: 14.88 μg/m3
PM10: 21.97 μg/m3
Carbon Monoxide: 102.94 μg/m3
Nitrogen Dioxide: 2.37 μg/m3
Sulphur Dioxide: 0.76 μg/m3
Ozone: 66.33 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 1:26 PM
Sunset: 8:25 PM
Daylight: 13 hrs 57 mins
Moonrise: 3:58 PM
Moon Transit: 8:58 PM
Moonset: 1:17 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

9:27 AM - 11:57 AM
8:28 PM - 10:58 PM

Minor Periods

3:28 PM - 4:58 PM
12:47 AM - 2:17 AM

Action Rating: 3 out of 5

Friday, July 24, 2026

Weather Forecast

Sunny
85.2°F
75.7°F
80°F
76%
0.38 in
74%
0%
14.8 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 11.78 μg/m3
PM10: 14.7 μg/m3
Carbon Monoxide: 130.44 μg/m3
Nitrogen Dioxide: 4.49 μg/m3
Sulphur Dioxide: 0.91 μg/m3
Ozone: 68.22 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 1:26 PM
Sunset: 8:24 PM
Daylight: 13 hrs 56 mins
Moonrise: 4:56 PM
Moon Transit: 9:48 PM
Moonset: 1:55 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

10:16 AM - 12:46 AM
9:18 PM - 11:48 PM

Minor Periods

4:26 PM - 5:56 PM
1:25 AM - 2:55 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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