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Charleston Harbor MR

[NOTICE]

Last Update: 2:40 am EDT Apr 19, 2026
Forecast Valid: 7am EDT Apr 19, 2026-6pm EDT Apr 25, 2026

Today

SW wind 7 to 10 kt becoming NNW 10 to 13 kt in the afternoon. A slight chance of showers after 3pm. Seas 1 ft or less.

Tonight

NNE wind 8 to 10 kt. Mostly cloudy, then gradually becoming mostly clear. Seas 1 ft or less.

Monday

NNE wind 6 to 9 kt becoming E in the afternoon. Sunny. Seas 1 ft or less.

Monday Night

S wind 5 to 7 kt becoming NW after midnight. Mostly clear. Seas 1 ft or less.

Tuesday

NNE wind around 10 kt becoming E in the afternoon. Sunny. Seas 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Wednesday Night

SSW wind around 8 kt. Mostly clear. Seas 1 ft or less.

Thursday

W wind 5 to 7 kt becoming SSW in the afternoon. Sunny. Seas 1 ft or less.

*Notices:

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.
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.