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Charleston, SC Local Forecast Office

3NM NW Rattlesnake Shoal MR

Marine Point Forecast

[NOTICE]
    • Today

      Today:SW wind 16 to 19 kt. Showers and thunderstorms likely, mainly before noon.   Seas around 4 ft.

      SW 19kt
      4ft

    • Tonight

      Tonight:W wind 12 to 14 kt. Mostly clear. Seas 3 to 4 ft.

      W 14kt
      3-4ft

    • Columbus Day

      Columbus Day:WNW wind around 11 kt. Sunny. Seas 2 to 3 ft.

      WNW 11kt
      2-3ft

    • Monday Night

      Monday Night:N wind around 6 kt. Mostly clear. Seas around 2 ft.

      N 6kt
      2ft

    • Tuesday

      Tuesday:N wind around 6 kt becoming E in the afternoon. Sunny. Seas 1 to 2 ft.

      N 6kt
      1-2ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. Clear. Seas 1 to 2 ft.

      Light Wind
      1-2ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. Sunny. Seas 1 to 2 ft.

      ⇑S 7kt
      1-2ft

    • Wednesday Night

      Wednesday Night:Variable winds 5 kt or less. Clear. Seas around 2 ft.

      Light Wind
      2ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming SSE 5 to 7 kt in the afternoon. Sunny. Seas 1 to 2 ft.

      ⇑SSE 7kt
      1-2ft


Associated Zone Forecast which includes this point

Last Update: 2:40 am EDT Oct 11, 2026
Forecast Valid: 7am EDT Oct 11, 2026-6pm EDT Oct 17, 2026

View Nearby Observations

Detailed Forecast


Today
SW wind 16 to 19 kt. Showers and thunderstorms likely, mainly before noon. Seas around 4 ft.
Tonight
W wind 12 to 14 kt. Mostly clear. Seas 3 to 4 ft.
Columbus Day
WNW wind around 11 kt. Sunny. Seas 2 to 3 ft.
Monday Night
N wind around 6 kt. Mostly clear. Seas around 2 ft.
Tuesday
N wind around 6 kt becoming E in the afternoon. Sunny. Seas 1 to 2 ft.
Tuesday Night
Variable winds 5 kt or less. Clear. Seas 1 to 2 ft.
Wednesday
Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. Sunny. Seas 1 to 2 ft.
Wednesday Night
Variable winds 5 kt or less. Clear. Seas around 2 ft.
Thursday
Variable winds less than 5 kt becoming SSE 5 to 7 kt in the afternoon. Sunny. Seas 1 to 2 ft.

Winds and seas higher in and near tstms.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 32.77°N 79.79°W
Last Update: 2:40 am EDT Oct 11, 2026
Forecast Valid: 7am EDT Oct 11, 2026-6pm EDT Oct 17, 2026
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