Water Temperature of the Atlantic Ocean Near St. Helena Island, SC

Current Water Temperature

78.4°F

Measurement Time: Tuesday, September 16, 2025, 7:08 PM EDT

Temperature Locations

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Local Points of Interest

Fripp Island, SC

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Atlantic Ocean

Station Name: Fripp Nearshore, SC (FRP2)
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 0 feet / 0 meters

Nearest Address:
Offshore
St. Helena Island, SC 29920
Beaufort County

GPS Coordinates: 32.279, -80.406

Nearby Water Temperatures

Savannah River, Tybee Island, GA (33.6 mi)
Savannah River, Hardeeville, SC (37.2 mi)
Back River, Savannah, GA (41.5 mi)
Savannah River, Savannah, GA (41.8 mi)
Little Back River, Limehouse, SC (42.1 mi)
Savannah River, Hardeeville, SC (42.3 mi)
Little Back River, Limehouse, SC (42.3 mi)
Savannah River, Hardeeville, SC (43.6 mi)
Savannah River, Savannah, GA (43.7 mi)
Abercorn Creek, Rincon, GA (43.7 mi)
Savannah River, Rincon, GA (44.3 mi)
Savannah River, Hardeeville, SC (44.3 mi)
Ashley River, North Charleston, SC (44.4 mi)
Cooper River, Charleston, SC (44.6 mi)
Cooper River, Charleston, SC (44.6 mi)

Weather Near St. Helena Island, South Carolina

Current Weather

75.4°F
Clear
Conditions: Clear
Humidity: 69%
Feels Like: 77.9°F
Wind: SSE 6.3 mph
Wind Gusts: 11.1 mph
Pressure: 30.07 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Tue
H: 83°F
L: 68°F
Sunny
Wed
H: 84°F
L: 73°F
Sunny
Thu
H: 84°F
L: 77°F
Patchy rain nearby
Fri
H: 81°F
L: 76°F
Patchy rain nearby
Sat
H: 82°F
L: 73°F

Air Quality

AQI: 2 - Moderate
PM2.5: 17.95 μg/m3
PM10: 18.87 μg/m3
Carbon Monoxide: 338.55 μg/m3
Nitrogen Dioxide: 5.92 μg/m3
Sulphur Dioxide: 4.63 μg/m3
Ozone: 110 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 1:16 PM
Sunset: 7:26 PM
Daylight: 12 hrs 19 mins
Moonrise: 1:40 AM
Moon Transit: 9:12 AM
Moonset: 4:38 PM
Moon Phase: Last Quarter
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

8:42 AM - 11:12 AM
12:00 AM - 12:00 AM

Minor Periods

4:08 PM - 5:38 PM
1:10 AM - 2:40 AM

Action Rating: 2 out of 5

Tuesday, September 16, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 76.4°F
Average Humidity: 68%
Chance of Rain: 0%
Wind: 9.6 mph
UV Index: 1.8

Air Quality

AQI: 2 - Moderate
PM2.5: 15.73 μg/m3
PM10: 16.88 μg/m3
Carbon Monoxide: 351.87 μg/m3
Nitrogen Dioxide: 4.04 μg/m3
Sulphur Dioxide: 5.45 μg/m3
Ozone: 114.68 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 1:16 PM
Sunset: 7:26 PM
Daylight: 12 hrs 19 mins
Moonrise: 1:40 AM
Moon Transit: 9:12 AM
Moonset: 4:38 PM
Moon Phase: Last Quarter
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

8:42 AM - 11:12 AM
12:00 AM - 12:00 AM

Minor Periods

4:08 PM - 5:38 PM
1:10 AM - 2:40 AM

Action Rating: 2 out of 5

Wednesday, September 17, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 78.2°F
Average Humidity: 67%
Chance of Rain: 0%
Wind: 13.6 mph
UV Index: 1.6

Air Quality

AQI: 1 - Good
PM2.5: 12.41 μg/m3
PM10: 14.38 μg/m3
Carbon Monoxide: 354.02 μg/m3
Nitrogen Dioxide: 4.06 μg/m3
Sulphur Dioxide: 4.11 μg/m3
Ozone: 112.24 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 1:15 PM
Sunset: 7:24 PM
Daylight: 12 hrs 17 mins
Moonrise: 2:48 AM
Moon Transit: 10:07 AM
Moonset: 5:18 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:37 AM - 12:07 AM

Minor Periods

4:48 PM - 6:18 PM
2:18 AM - 3:48 AM

Action Rating: 2 out of 5

Thursday, September 18, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 79.1°F
Average Humidity: 80%
Chance of Rain: 0%
Wind: 12.3 mph
UV Index: 1.8

Air Quality

AQI: 2 - Moderate
PM2.5: 18.74 μg/m3
PM10: 22.76 μg/m3
Carbon Monoxide: 321.16 μg/m3
Nitrogen Dioxide: 2.89 μg/m3
Sulphur Dioxide: 3.03 μg/m3
Ozone: 130.76 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 1:15 PM
Sunset: 7:23 PM
Daylight: 12 hrs 16 mins
Moonrise: 3:53 AM
Moon Transit: 10:57 AM
Moonset: 5:53 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:27 AM - 12:57 AM

Minor Periods

5:23 PM - 6:53 PM
3:23 AM - 4:53 AM

Action Rating: 2 out of 5

Friday, September 19, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 77.7°F
Average Humidity: 86%
Chance of Rain: 64%
Wind: 10.7 mph
UV Index: 1.6

Air Quality

AQI: 2 - Moderate
PM2.5: 21.28 μg/m3
PM10: 26.56 μg/m3
Carbon Monoxide: 319.24 μg/m3
Nitrogen Dioxide: 1.84 μg/m3
Sulphur Dioxide: 3.37 μg/m3
Ozone: 129.92 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 1:15 PM
Sunset: 7:22 PM
Daylight: 12 hrs 14 mins
Moonrise: 4:56 AM
Moon Transit: 11:43 AM
Moonset: 6:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

12:10 AM - 2:40 AM
11:13 AM - 1:43 PM

Minor Periods

5:53 PM - 7:23 PM
4:26 AM - 5:56 AM

Action Rating: 3 out of 5

Saturday, September 20, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 76.9°F
Average Humidity: 77%
Chance of Rain: 80%
Wind: 18.6 mph
UV Index: 1.8

Air Quality

AQI: 2 - Moderate
PM2.5: 22.71 μg/m3
PM10: 28.99 μg/m3
Carbon Monoxide: 363.74 μg/m3
Nitrogen Dioxide: 2.63 μg/m3
Sulphur Dioxide: 2.92 μg/m3
Ozone: 128.54 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 1:14 PM
Sunset: 7:20 PM
Daylight: 12 hrs 12 mins
Moonrise: 5:56 AM
Moon Transit: 12:27 AM
Moonset: 6:49 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:54 AM - 3:24 AM
11:57 AM - 2:27 PM

Minor Periods

6:19 PM - 7:49 PM
5:26 AM - 6:56 AM

Action Rating: 4 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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