Marine Forecast
Illustrated map of Lake Murray

Marine forecast

South Santee River–Edisto Beach (20–60 nm), SC

current wind
6 kt NNW
Gusts
8 kt
Seas
1.3 ft
Period
7 sec
Air
79°F

Observed Tue 3:10 PM | AMZ380

Gusts now
8 kt
Seas now
1.3 ft · 7 sec
Air
79°F
Water
82°F
72-hr peak
14 kt

In brief

At 3:10 pm EDT on Oct 13, 2026, NDBC station 41004 (41 NM Southeast of Charleston, SC, 18 miles away) measured wind from the NNW at 6 kt, gusting to 8 kt; buoy 41076 measured seas of 1.3 ft. The NWS forecast for South Santee River–Edisto Beach (20–60 nm), SC issued at 2:19 pm EDT on Oct 13, 2026 reads, for this afternoon: “NE winds 5 kt. Seas 2 to 3 ft.”

Source: National Weather Service Charleston SC forecast; NDBC observations

Wind forecast · ktPeak 14 kt

05101520Wed 14Thu 15Fri 1605101520Wed 14Thu 15Fri 16
Sustained GustOct 13-16 | EDT

NWS marine forecast

PeriodForecast
This AfternoonNE winds 5 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 7 seconds and NW 1 foot at 2 seconds.
TonightVariable winds 5 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds.
WedNW winds 5 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds.
Wed NightSW winds 5 kt. Seas 2 ft. Wave Detail: E 2 ft at 7 seconds.
ThuW winds 5 kt. Seas 2 ft. Wave Detail: E 2 ft at 7 seconds.
Thu NightS winds 5 kt, becoming SW after midnight. Seas 2 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at 2 seconds.
FriSW winds 10 to 15 kt. Seas 2 to 3 ft.
Fri NightW winds 25 to 30 kt. Seas 4 to 5 ft. A slight chance of showers and tstms.
SatNE winds 25 to 30 kt. Seas 7 to 9 ft.
Sat NightNE winds 25 to 30 kt. Seas 8 to 10 ft. Winds and seas higher in and near tstms.

Issued Tue 2:19 PM by Charleston SC (product CWFCHS).

TimeWindGustSeasWater
Tue 3:10 PM 6 kt NNW 8 kt — 82°F
Tue 2:50 PM 6 kt NNW 8 kt 1.6 ft 82°F
Tue 1:50 PM 6 kt N 6 kt 1.3 ft 82°F
Tue 12:50 PM 6 kt N 8 kt 1.6 ft 82°F
Tue 11:50 AM 4 kt NNE 6 kt 1.3 ft 82°F
Tue 10:50 AM 4 kt NNE 6 kt 1.6 ft 82°F
Tue 9:50 AM 4 kt NNE 6 kt 1.3 ft 82°F
Tue 8:50 AM 6 kt NNE 8 kt 1.3 ft 82°F
Tue 7:50 AM 6 kt NNE 8 kt 1.3 ft 82°F
Tue 6:50 AM 6 kt N 8 kt 1.3 ft 82°F
Tue 5:50 AM 6 kt N 8 kt 1.3 ft 81°F
Tue 4:50 AM 6 kt N 8 kt 1.6 ft 81°F

Observed Tue 3:10 PM at NDBC buoy 41004 (41 NM Southeast of Charleston, SC), 17.5 miles away. Seas from buoy 41076, 16.4 miles away, at Tue 2:45 PM.

What is the marine forecast for South Santee River–Edisto Beach (20–60 nm) today?

This Afternoon: NE winds 5 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 7 seconds and NW 1 foot at 2 seconds.

Is there a small craft advisory for South Santee River–Edisto Beach (20–60 nm)?

No advisories, warnings or watches are in effect for NWS zone AMZ380 as of the last update on this page. Advisories can be issued at any time; check the current bulletin before leaving the dock.

How high are the waves at South Santee River–Edisto Beach (20–60 nm) right now?

Seas are running 1.3 ft at a 7-second period, measured at NDBC buoy 41004 Tue 3:10 PM, 17.5 miles from this zone.

What is the water temperature at South Santee River–Edisto Beach (20–60 nm)?

The nearest buoy read 82°F (28°C) at Tue 3:10 PM. Sea surface temperature at a single buoy can differ by several degrees from the water at a beach or in a shallow bay nearby.

What do the wind speeds in knots mean?

One knot is 1.15 mph. The National Weather Service issues a small craft advisory for sustained winds of roughly 22–33 knots or hazardous seas, a gale warning at 34–47 knots, and a storm warning at 48 knots and above. Exact advisory thresholds vary by forecast office and by water body — a bay reaches dangerous chop at a lower wind speed than open ocean.

Where does this forecast come from?

The forecast text is the National Weather Service's own marine bulletin for zone AMZ380, issued by Charleston SC, reproduced in full. The wind and seas charts are drawn from the NWS gridded forecast for a point inside the zone. Observations come from the nearest reporting NDBC buoy. We are not affiliated with NOAA or the National Weather Service.

Forecast: NOAA/NWS product CWFCHS, issued Tue 2:19 PM. Observations: NOAA National Data Buoy Center station 41004, read Tue 3:10 PM. Retrieved Oct 13, 3:42 PM. Conditions offshore change faster than any page can be rebuilt, so check the current NWS bulletin and your own instruments before going out.