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

Current Water Temperature

78.1°F

Measurement Time: Friday, September 12, 2025, 7:08 AM 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

73.9°F
Partly cloudy
Conditions: Partly cloudy
Humidity: 78%
Feels Like: 77.3°F
Wind: NE 13.6 mph
Wind Gusts: 15.7 mph
Pressure: 30.12 in
Precipitation: 0 in
Cloud Cover: 50%
Visibility: 9 mi
UV Index: 5.3

Five Day Weather Forecast

Partly Cloudy
Fri
H: 83°F
L: 73°F
Sunny
Sat
H: 82°F
L: 73°F
Partly Cloudy
Sun
H: 81°F
L: 73°F
Sunny
Mon
H: 81°F
L: 69°F
Sunny
Tue
H: 82°F
L: 72°F

Air Quality

AQI: 1 - Good
PM2.5: 8.7 μg/m3
PM10: 9.99 μg/m3
Carbon Monoxide: 236.8 μg/m3
Nitrogen Dioxide: 1.3 μg/m3
Sulphur Dioxide: 2.96 μg/m3
Ozone: 109 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 1:17 PM
Sunset: 7:31 PM
Daylight: 12 hrs 27 mins
Moonrise: 10:42 PM
Moon Transit: 5:10 AM
Moonset: 12:33 AM
Moon Phase: Waning Gibbous
Moon Illumination: 67.4%

Best Times for Fishing or Hunting

Major Periods

4:40 AM - 7:10 AM
6:30 PM - 9:00 PM

Minor Periods

10:12 PM - 11:42 PM
12:03 AM - 1:33 PM

Action Rating: 3 out of 5

Coastal Flood Advisory issued September 12 at 1:31AM EDT until September 12 at 2:00PM EDT by NWS Charleston SC

Effective: Fri September 12, 2025, 1:31 AM
Expires: Fri September 12, 2025, 2:00 PM

* WHAT...Up to one foot of inundation above ground level expected along shorelines and tidal waterways (7.4 to 7.6 feet Mean Lower Low Water at Charleston). * WHERE...Coastal Colleton and Charleston Counties. * WHEN...From 10 AM this morning to 2 PM EDT this afternoon. * IMPACTS...This will result in some roads becoming impassable and minor flooding of properties. * ADDITIONAL DETAILS...High tide will occur around 12:15 PM today at Charleston. Saltwater inundation will be possible 1 to 2 hours before and after high tide.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. Visit water.weather.gov for additional water level and flood impact information.


Coastal Flood Advisory issued September 12 at 1:31AM EDT until September 12 at 2:00PM EDT by NWS Charleston SC

Effective: Fri September 12, 2025, 1:31 AM
Expires: Fri September 12, 2025, 2:00 PM

* WHAT...Up to one foot of inundation above ground level expected along shorelines and tidal waterways (7.4 to 7.6 feet Mean Lower Low Water at Charleston). * WHERE...Coastal Colleton and Charleston Counties. * WHEN...From 10 AM this morning to 2 PM EDT this afternoon. * IMPACTS...This will result in some roads becoming impassable and minor flooding of properties. * ADDITIONAL DETAILS...High tide will occur around 12:15 PM today at Charleston. Saltwater inundation will be possible 1 to 2 hours before and after high tide.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. Visit water.weather.gov for additional water level and flood impact information.


Coastal Flood Advisory issued September 12 at 1:31AM EDT until September 12 at 2:00PM EDT by NWS Charleston SC

Effective: Fri September 12, 2025, 1:31 AM
Expires: Fri September 12, 2025, 2:00 PM

* WHAT...Up to one foot of inundation above ground level expected along shorelines and tidal waterways (7.4 to 7.6 feet Mean Lower Low Water at Charleston). * WHERE...Coastal Colleton and Charleston Counties. * WHEN...From 10 AM this morning to 2 PM EDT this afternoon. * IMPACTS...This will result in some roads becoming impassable and minor flooding of properties. * ADDITIONAL DETAILS...High tide will occur around 12:15 PM today at Charleston. Saltwater inundation will be possible 1 to 2 hours before and after high tide.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. Visit water.weather.gov for additional water level and flood impact information.


Coastal Flood Advisory issued September 12 at 1:31AM EDT until September 12 at 2:00PM EDT by NWS Charleston SC

Effective: Fri September 12, 2025, 1:31 AM
Expires: Fri September 12, 2025, 2:00 PM

* WHAT...Up to one foot of inundation above ground level expected along shorelines and tidal waterways (7.4 to 7.6 feet Mean Lower Low Water at Charleston). * WHERE...Coastal Colleton and Charleston Counties. * WHEN...From 10 AM this morning to 2 PM EDT this afternoon. * IMPACTS...This will result in some roads becoming impassable and minor flooding of properties. * ADDITIONAL DETAILS...High tide will occur around 12:15 PM today at Charleston. Saltwater inundation will be possible 1 to 2 hours before and after high tide.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. Visit water.weather.gov for additional water level and flood impact information.


Coastal Flood Advisory issued September 12 at 1:31AM EDT until September 12 at 2:00PM EDT by NWS Charleston SC

Effective: Fri September 12, 2025, 1:31 AM
Expires: Fri September 12, 2025, 2:00 PM

* WHAT...Up to one foot of inundation above ground level expected along shorelines and tidal waterways (7.4 to 7.6 feet Mean Lower Low Water at Charleston). * WHERE...Coastal Colleton and Charleston Counties. * WHEN...From 10 AM this morning to 2 PM EDT this afternoon. * IMPACTS...This will result in some roads becoming impassable and minor flooding of properties. * ADDITIONAL DETAILS...High tide will occur around 12:15 PM today at Charleston. Saltwater inundation will be possible 1 to 2 hours before and after high tide.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. Visit water.weather.gov for additional water level and flood impact information.
Friday, September 12, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 77.8°F
Average Humidity: 70%
Chance of Rain: 0%
Wind: 15.9 mph
UV Index: 2

Air Quality

AQI: 1 - Good
PM2.5: 10.17 μg/m3
PM10: 11.31 μg/m3
Carbon Monoxide: 282.31 μg/m3
Nitrogen Dioxide: 3.87 μg/m3
Sulphur Dioxide: 3.53 μg/m3
Ozone: 93.2 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 1:17 PM
Sunset: 7:31 PM
Daylight: 12 hrs 27 mins
Moonrise: 10:42 PM
Moon Transit: 5:10 AM
Moonset: 12:33 AM
Moon Phase: Waning Gibbous
Moon Illumination: 67.4%

Best Times for Fishing or Hunting

Major Periods

4:40 AM - 7:10 AM
6:30 PM - 9:00 PM

Minor Periods

10:12 PM - 11:42 PM
12:03 AM - 1:33 PM

Action Rating: 3 out of 5

Saturday, September 13, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 77.2°F
Average Humidity: 64%
Chance of Rain: 0%
Wind: 16.6 mph
UV Index: 1.8

Air Quality

AQI: 1 - Good
PM2.5: 9.85 μg/m3
PM10: 11.93 μg/m3
Carbon Monoxide: 300.22 μg/m3
Nitrogen Dioxide: 2.93 μg/m3
Sulphur Dioxide: 3.63 μg/m3
Ozone: 118.12 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 1:17 PM
Sunset: 7:30 PM
Daylight: 12 hrs 25 mins
Moonrise: 11:34 PM
Moon Transit: 6:09 AM
Moonset: 1:44 PM
Moon Phase: Waning Gibbous
Moon Illumination: 56.4%

Best Times for Fishing or Hunting

Major Periods

5:39 AM - 8:09 AM
7:30 PM - 10:00 PM

Minor Periods

12:00 AM - 12:00 AM
1:14 PM - 2:44 PM

Action Rating: 3 out of 5

Sunday, September 14, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 76.4°F
Average Humidity: 63%
Chance of Rain: 0%
Wind: 13.4 mph
UV Index: 1.9

Air Quality

AQI: 1 - Good
PM2.5: 9.35 μg/m3
PM10: 11.36 μg/m3
Carbon Monoxide: 319.38 μg/m3
Nitrogen Dioxide: 3.74 μg/m3
Sulphur Dioxide: 3.34 μg/m3
Ozone: 102.92 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 1:17 PM
Sunset: 7:28 PM
Daylight: 12 hrs 23 mins
Moonrise: 12:34 AM
Moon Transit: 7:11 AM
Moonset: 2:51 PM
Moon Phase: Last Quarter
Moon Illumination: 45.1%

Best Times for Fishing or Hunting

Major Periods

6:41 AM - 9:11 AM
8:32 PM - 11:02 PM

Minor Periods

2:21 PM - 3:51 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, September 15, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 76.3°F
Average Humidity: 61%
Chance of Rain: 0%
Wind: 14.8 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 6.9 μg/m3
PM10: 8.6 μg/m3
Carbon Monoxide: 310.28 μg/m3
Nitrogen Dioxide: 3.97 μg/m3
Sulphur Dioxide: 3.29 μg/m3
Ozone: 90.72 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 1:16 PM
Sunset: 7:27 PM
Daylight: 12 hrs 21 mins
Moonrise: 12:35 AM
Moon Transit: 8:13 AM
Moonset: 3:49 PM
Moon Phase: Last Quarter
Moon Illumination: 34.0%

Best Times for Fishing or Hunting

Major Periods

7:43 AM - 10:13 AM
12:00 AM - 12:00 AM

Minor Periods

3:19 PM - 4:49 PM
12:05 AM - 1:35 AM

Action Rating: 2 out of 5

Tuesday, September 16, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 76.4°F
Average Humidity: 65%
Chance of Rain: 0%
Wind: 13.9 mph
UV Index: 6

Air Quality

AQI: 1 - Good
PM2.5: 3.71 μg/m3
PM10: 4.5 μg/m3
Carbon Monoxide: 264.55 μg/m3
Nitrogen Dioxide: 3.44 μg/m3
Sulphur Dioxide: 2.59 μg/m3
Ozone: 86.38 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

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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