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Charleston Harbor MR

[NOTICE]

Last Update: 10:27 am EDT Sep 15, 2026
Forecast Valid: 1pm EDT Sep 15, 2026-6pm EDT Sep 21, 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

This Afternoon

ENE wind around 21 kt, with gusts as high as 27 kt. Mostly sunny. Seas 1 ft or less.

Tonight

ENE wind 9 to 13 kt. Partly cloudy. Seas 1 ft or less.

Wednesday

NNE wind 10 to 13 kt becoming ENE 13 to 16 kt in the afternoon. Sunny. Seas 1 ft or less.

Wednesday Night

NE wind 7 to 10 kt. Mostly clear. Seas 1 ft or less.

Thursday

ENE wind 9 to 13 kt. Sunny. Seas 1 ft or less.

Thursday Night

ENE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.

Friday

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

Friday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Saturday

Variable winds less than 5 kt becoming ESE 5 to 9 kt in the morning. A chance of showers and thunderstorms. 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.