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

Current Water Temperature

59.2°F

Measurement Time: Wednesday, March 18, 2026, 10:08 PM EDT

Temperature Locations

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Local Points of Interest

Fripp Island, SC

Atlantic Ocean

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

Elevation Above Sea Level: 0 feet

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

48.9°F
Overcast
Overcast
44.7°F
49.9°F
54%
NNE 10.1 mph
17.2 mph
46.8°F
33.5°F
0 in
100%
9 mi
1025 mbar
0

Five Day Weather Forecast

Sunny
Thu
H: 62°F
L: 45°F
Sunny
Fri
H: 64°F
L: 52°F
Sunny
Sat
H: 70°F
L: 57°F
Sunny
Sun
H: 73°F
L: 60°F
Patchy rain nearby
Mon
H: 75°F
L: 63°F

Air Quality

PM2.5: 5.45 μg/m3
PM10: 5.75 μg/m3
Carbon Monoxide: 181.85 μg/m3
Nitrogen Dioxide: 3.95 μg/m3
Sulphur Dioxide: 3.75 μg/m3
Ozone: 93 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 12:00 AM
Sunset: 7:32 PM
Daylight: 12 hrs 6 mins
Moonrise: 7:37 AM
Moon Transit: 1:31 AM
Moonset: 8:29 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

1:01 AM - 3:31 AM
1:01 AM - 3:31 AM

Minor Periods

7:59 PM - 9:29 PM
7:07 AM - 8:37 AM

Action Rating: 5 out of 5

Frost Advisory issued March 18 at 2:15PM EDT until March 19 at 9:00AM EDT by NWS Charleston SC

Effective: Wed March 18, 2026, 2:15 PM
Expires: Wed March 18, 2026, 11:00 PM

* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of southeast Georgia and southeast South Carolina. * WHEN...From midnight tonight to 9 AM EDT Thursday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.


Frost Advisory issued March 18 at 8:08PM EDT until March 19 at 9:00AM EDT by NWS Charleston SC

Effective: Wed March 18, 2026, 8:08 PM
Expires: Thu March 19, 2026, 4:15 AM

* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of southeast Georgia and southeast South Carolina. * WHEN...From midnight tonight to 9 AM EDT Thursday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.
Thursday, March 19, 2026

Weather Forecast

Sunny
61.9°F
45.3°F
54°F
51%
0 in
0%
0%
10.7 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 5.47 μg/m3
PM10: 6.31 μg/m3
Carbon Monoxide: 175.69 μg/m3
Nitrogen Dioxide: 2.76 μg/m3
Sulphur Dioxide: 3.82 μg/m3
Ozone: 111.96 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 12:00 AM
Sunset: 7:32 PM
Daylight: 12 hrs 6 mins
Moonrise: 7:37 AM
Moon Transit: 1:31 AM
Moonset: 8:29 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

1:01 AM - 3:31 AM
1:01 AM - 3:31 AM

Minor Periods

7:59 PM - 9:29 PM
7:07 AM - 8:37 AM

Action Rating: 5 out of 5

Friday, March 20, 2026

Weather Forecast

Sunny
63.9°F
52°F
57.8°F
68%
0 in
0%
0%
9.8 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 7.57 μg/m3
PM10: 9.74 μg/m3
Carbon Monoxide: 174.69 μg/m3
Nitrogen Dioxide: 2.44 μg/m3
Sulphur Dioxide: 3.06 μg/m3
Ozone: 118.52 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 10:27 AM
Sunset: 7:33 PM
Daylight: 12 hrs 8 mins
Moonrise: 8:08 AM
Moon Transit: 2:47 PM
Moonset: 9:37 PM
Moon Phase: New
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

3:12 AM - 5:42 AM
2:17 PM - 4:47 PM

Minor Periods

9:07 PM - 10:37 PM
7:38 AM - 9:08 AM

Action Rating: 4 out of 5

Saturday, March 21, 2026

Weather Forecast

Sunny
70°F
56.8°F
62°F
76%
0 in
0%
0%
12.8 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 7.99 μg/m3
PM10: 10.17 μg/m3
Carbon Monoxide: 164.14 μg/m3
Nitrogen Dioxide: 2.91 μg/m3
Sulphur Dioxide: 2.17 μg/m3
Ozone: 114.92 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:00 AM
Sunset: 7:34 PM
Daylight: 12 hrs 10 mins
Moonrise: 8:42 AM
Moon Transit: 3:40 PM
Moonset: 10:49 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

4:03 AM - 6:33 AM
3:10 PM - 5:40 PM

Minor Periods

10:19 PM - 11:49 PM
8:12 AM - 9:42 AM

Action Rating: 2 out of 5

Sunday, March 22, 2026

Weather Forecast

Sunny
72.5°F
60.3°F
65.9°F
74%
0 in
0%
0%
14.5 mph
1.7


Air Quality

AQI: 1 - Good
PM2.5: 8 μg/m3
PM10: 8.85 μg/m3
Carbon Monoxide: 168.89 μg/m3
Nitrogen Dioxide: 4 μg/m3
Sulphur Dioxide: 2.58 μg/m3
Ozone: 110.92 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 12:00 AM
Sunset: 7:34 PM
Daylight: 12 hrs 12 mins
Moonrise: 9:21 AM
Moon Transit: 4:36 PM
Moonset: 12:01 PM
Moon Phase: Waxing Crescent
Moon Illumination: 14.9%

Best Times for Fishing or Hunting

Major Periods

4:57 AM - 7:27 AM
4:06 PM - 6:36 PM

Minor Periods

12:00 AM - 12:00 AM
8:51 AM - 10:21 AM

Action Rating: 3 out of 5

Monday, March 23, 2026

Weather Forecast

Patchy rain nearby
74.8°F
62.9°F
66.8°F
75%
0.02 in
65%
0%
15.7 mph
0


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: 7:21 AM
Sun Transit: 12:00 AM
Sunset: 7:35 PM
Daylight: 12 hrs 14 mins
Moonrise: 10:08 AM
Moon Transit: 5:37 PM
Moonset: 12:01 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

5:56 AM - 8:26 AM
5:07 PM - 7:37 PM

Minor Periods

9:38 AM - 11:08 AM
12:00 AM - 12:00 AM

Action Rating: 3 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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