National Weather ServiceSouth CarolinaCoastal Flood WatchArchive to October 1, 2026
Coastal Flood Watches in South Carolina
The National Weather Service issued 2 coastal flood watches for South Carolina in 2025 and 3 a year on average in 2008-2025; in 2021-2025 it had the 9th most of any state. 2026 through September: 0, 100% below the average of 1 for those months in 2008-2025. Charleston was covered most often (49 times since 2008).
How many coastal flood watches does South Carolina get?
Every coastal flood watch that covered part of South Carolina. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 0 |
| 2025 | 2 |
| 2024 | 4 |
| 2023 | 6 |
| 2022 | 1 |
| 2021 | 4 |
| 2020 | 7 |
| 2019 | 7 |
| 2018 | 2 |
| 2017 | 1 |
| 2016 | 4 |
| 2015 | 9 |
| 2014 | 0 |
| 2013 | 0 |
| 2012 | 4 |
| 2011 | 0 |
| 2010 | 0 |
| 2009 | 4 |
| 2008 | 0 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does South Carolina get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in South Carolina?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Charleston | 49 | 10 | October 9, 2025 |
| Coastal Colleton | 48 | 10 | October 9, 2025 |
| Beaufort | 33 | 1 | November 16, 2024 |
| Coastal Jasper | 26 | 1 | November 16, 2024 |
| Tidal Berkeley | 11 | 0 | November 24, 2015 |
| Coastal Georgetown | 5 | 2 | October 10, 2025 |
| Coastal Horry | 5 | 2 | October 10, 2025 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
What is a coastal flood watch?
A coastal flood watch means significant coastal flooding is possible. A watch means the conditions for the hazard are possible or favourable, but it is not yet happening: be ready to act if a warning follows. The national record · Every warning type in South Carolina.