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Charleston Harbor MR

[NOTICE]

Last Update: 1:30 pm EST Feb 18, 2026
Forecast Valid: 1pm EST Feb 18, 2026-6pm EST Feb 24, 2026

This Afternoon

SSW wind around 14 kt. Partly sunny. Seas 1 ft or less.

Tonight

SW wind 8 to 10 kt. Mostly cloudy. Seas 1 ft or less.

Thursday

SW wind 6 to 11 kt. Mostly cloudy. Seas 1 ft or less.

Thursday Night

SSW wind around 10 kt. Mostly cloudy. Seas 1 ft or less.

Friday

SW wind 11 to 14 kt, with gusts as high as 21 kt. A chance of showers, mainly after 1pm. Seas 1 ft or less.

Friday Night

SW wind around 7 kt. A chance of showers. Seas 1 ft or less.

Saturday

SW wind 6 to 9 kt. A chance of showers, then showers and possibly a thunderstorm after 1pm. Seas 1 ft or less.

Saturday Night

WSW wind around 6 kt becoming N after midnight. Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Seas 1 ft or less.

Sunday

NW wind 10 to 13 kt, with gusts as high as 20 kt. A chance of showers. Seas 1 ft or less.

Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 52 degrees.

*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.