National Weather ServiceSouth CarolinaHeat AdvisoryArchive to October 1, 2026
Heat Advisories in South Carolina
The National Weather Service issued 36 heat advisories for South Carolina in 2025 and 28 a year on average in 2008-2025; in 2021-2025 it had the 20th most of any state. 2026 through September: 85, 202% above the average of 28 for those months in 2008-2025. Beaufort was covered most often (190 times since 2008).
How many heat advisories does South Carolina get?
Every heat advisory that covered part of South Carolina. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 85 |
| 2025 | 36 |
| 2024 | 49 |
| 2023 | 34 |
| 2022 | 26 |
| 2021 | 8 |
| 2020 | 19 |
| 2019 | 18 |
| 2018 | 14 |
| 2017 | 11 |
| 2016 | 23 |
| 2015 | 33 |
| 2014 | 9 |
| 2013 | 3 |
| 2012 | 27 |
| 2011 | 72 |
| 2010 | 89 |
| 2009 | 9 |
| 2008 | 26 |
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 |
|---|---|---|---|
| Beaufort | 190 | 60 | September 5, 2026 |
| Coastal Jasper | 189 | 61 | September 5, 2026 |
| Marion | 184 | 57 | September 5, 2026 |
| Coastal Colleton | 181 | 54 | September 5, 2026 |
| Charleston | 176 | 53 | September 5, 2026 |
| Florence | 176 | 51 | September 5, 2026 |
| Williamsburg | 175 | 46 | September 5, 2026 |
| Inland Jasper | 170 | 47 | September 5, 2026 |
| Dillon | 166 | 58 | September 5, 2026 |
| Darlington | 164 | 54 | September 5, 2026 |
| Marlboro | 162 | 56 | September 5, 2026 |
| Inland Georgetown | 157 | 50 | September 5, 2026 |
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 heat advisory?
A heat advisory means heat that can make people ill, especially those without cooling, below the office's extreme heat warning values. An advisory is issued for a hazard less serious than a warning that can still cause inconvenience or danger if people are not careful. The national record · Every warning type in South Carolina.