Snowbirds use a boat in South Carolina through winters with highs near 60.2°F at Charleston, then leave it through 80.8 days a year at or above 90°F at Columbia (NOAA 1991-2020). 54 boat storage facilities are listed in South Carolina, 69 with indoor or covered space.
| Month | Columbia high / low | boat | Columbia precip | Charleston high / low | boat |
|---|---|---|---|---|---|
| Jan | 57° / 35° | launch or haul-out | 3.5 in | 60° / 39° | launch or haul-out |
| Feb | 61° / 37° | launch or haul-out | 3.4 in | 64° / 42° | launch or haul-out |
| Mar | 68° / 44° | launch or haul-out | 3.6 in | 70° / 47° | in the water |
| Apr | 77° / 52° | in the water | 2.8 in | 77° / 55° | in the water |
| May | 84° / 61° | in the water | 3.5 in | 84° / 63° | in the water |
| Jun | 90° / 69° | in the water | 5.0 in | 89° / 70° | in the water |
| Jul | 93° / 72° | in the water | 5.4 in | 91° / 74° | in the water |
| Aug | 91° / 71° | in the water | 4.7 in | 90° / 73° | in the water |
| Sep | 86° / 65° | in the water | 3.9 in | 85° / 68° | in the water |
| Oct | 77° / 53° | in the water | 3.1 in | 78° / 58° | in the water |
| Nov | 66° / 42° | launch or haul-out | 2.8 in | 69° / 47° | in the water |
| Dec | 59° / 37° | launch or haul-out | 3.7 in | 63° / 42° | launch or haul-out |
Boat column rule: in the water at a 65°F high and 45°F low or warmer; launch or haul-out from a 52°F high; laid up below.
By that rule a boat at Columbia has 7 months in the water (April to October) and 5 of launch or haul-out. By that rule a boat at Charleston has 9 months in the water (March to November) and 3 of launch or haul-out.
Sun and heat are what age a stored boat in South Carolina: Columbia averages a July high of 92.7°F and 80.8 days at or above 90°F. 69 of 54 listed facilities list indoor or covered space, the first spaces snowbirds book. South Carolina also has 32 NOAA-recorded hurricane impacts (5 since 2000), so ask about a storm plan for June to November.
54 live listings in 19 cities; by listed type: 35 indoor, 34 covered, 47 outdoor and 2 wet-slip (types overlap). No South Carolina boat storage listing publishes a rate on StowHelp.
| Facility | City | Listed storage | Listed amenities | Also listed for |
|---|---|---|---|---|
| Store & Go Self Storage | Beaufort | indoor, outdoor, covered | Jet Ski | |
| Main Road Self Storage | Summerville | indoor, outdoor, covered | Jet Ski | |
| Sea Mountain Storage | Little River | indoor, outdoor, covered | Jet Ski | |
| The Boathouse | Hilton Head | indoor, outdoor, covered | Jet Ski | |
| Extra Space Storage - North Charleston | North Charleston | indoor, outdoor, covered | Jet Ski | |
| Johns Island Self Storage Boat & RV | Johns Island | indoor, outdoor, covered | Jet Ski | |
| Cricket Cove Marina | Myrtle Beach | indoor, outdoor, covered | Jet Ski | |
| Lakeside Boat and RV Storage | Hardeeville | indoor, outdoor, covered | Jet Ski | |
| Monster Self Storage - Bluffton | Bluffton | indoor, outdoor, covered | Jet Ski | |
| Mount Pleasant Boat and RV Storage | Mount Pleasant | indoor, outdoor, covered | Jet Ski | |
| Beaufort Boat/RV Self Storage | Beaufort | indoor, outdoor, covered | security cameras, gated entry | Jet Ski |
| Bubba's Hilton Head Shipping and Storage | Hilton Head Island | indoor, outdoor, covered | Jet Ski | |
| Extra Room Self Storage - Myrtle Beach | Myrtle Beach | indoor, outdoor, covered | Jet Ski | |
| Broad Creek Marina | Hilton Head Island | indoor, outdoor, covered | Jet Ski | |
| Public Storage - North Charleston | North Charleston | indoor, outdoor, covered | Jet Ski | |
| 7 Storage | Charleston | indoor, outdoor, covered | security cameras, gated entry | Jet Ski |
| Safe Harbor Charleston MegaDock | Charleston | indoor, outdoor, covered, wet slip | Jet Ski | |
| BlueGate Boat & RV Storage - Bluffton | Bluffton | indoor, outdoor, covered | security cameras, gated entry | Jet Ski |
| Carolina Boatyard | Mount Pleasant | indoor, outdoor, covered | Jet Ski | |
| Waterjack Boat Lifts and Docks | Fort Mill | indoor, outdoor |
| City | Boat Storage listings | Covered | Indoor | Open lot |
|---|---|---|---|---|
| Charleston | 10 | 6 | 6 | 10 |
| Campobello | 7 | 0 | 0 | 0 |
| Beaufort | 5 | 5 | 5 | 5 |
| Mount Pleasant | 5 | 2 | 2 | 5 |
| Myrtle Beach | 4 | 4 | 4 | 4 |
| Bluffton | 3 | 3 | 3 | 3 |
| Hilton Head Island | 3 | 3 | 3 | 3 |
| North Charleston | 3 | 2 | 2 | 3 |
| Conway | 2 | 2 | 2 | 2 |
| Hilton Head | 2 | 2 | 2 | 2 |
Columbia averages a July high of 92.7°F with 80.8 days a year at or above 90°F in NOAA's 1991-2020 normals; Charleston averages 64.3 such days. By our rule a boat at Columbia has 7 months in the water and 5 months of launch or haul-out; Charleston has 9 months in the water and 3 months of launch or haul-out.
By our season rule on NOAA normals, a boat at Columbia is in the water 7 months a year, from about April to October, and at Charleston 9 months. January averages 56.8°F by day and 34.6°F at night at Columbia, which is why winter is the season snowbirds come for.
StowHelp's 54 live South Carolina listings span 19 cities. The largest groups, with indoor or covered counts: Charleston (10; 6 shaded), Campobello (7; 0 shaded), Beaufort (5; 5 shaded) and Mount Pleasant (5; 2 shaded). For covered space specifically, Charleston (6 covered) and Beaufort (5 covered) lead. 47 of the 54 also list open outdoor spaces. Choosing a facility near where you winter keeps the drop-off in November and the fall pickup simple.
34 of 54 live listings list covered parking and 35 list indoor space; 47 list open outdoor spaces. Indoor space is listed most in Charleston (6) and Beaufort (5). 0 list climate-controlled units, against 80.8 days at or above 90°F at Columbia, where a boat has 7 months in the water and 5 months of launch or haul-out by our rule.
No South Carolina boat storage listing publishes a rate on StowHelp. Ask for the six-month rate, prepay terms and access while you are away. South Carolina has 69 covered or indoor and 47 open-lot listings, 10 of them in Charleston and 7 in Campobello, so quotes for both types are easy to compare.
47 of 54 South Carolina listings list open outdoor spaces. The most are in Charleston (10), Beaufort (5) and Mount Pleasant (5). With 80.8 days at or above 90°F a year, a boat in the open needs a reflective cover and tire covers.
NOAA NCEI Climate Normals 1991-2020 (USW00013883, USW00013880); NOAA AOML hurricane impacts 1851-2025; StowHelp listings 2026-10-07 (methodology).