Daylight through the yearLongest day (Jun 21): 14 h 19 min6:12 am – 8:31 pmShortest day (Dec 21): 10 h 0 min7:18 am – 5:17 pm
Sun todaySunrise –Sunset –
ClimateWarmest month July: highs 88°F, lows 77°FColdest month January: highs 58°F, lows 44°F44 in of rain a year, on about 65 dayswettest month AugustSnow is rare25 days above 90°F, 6 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Charleston City station; snow from Charleston Intl Ap
Nearby landmarksOyster Pointcape · under a mileCollege of Charlestoncollege · under a mileMedical University of South Carolina College of Health Professionscollege · 1.0 miColonial Lakelake · under a mileLighthouse Pointcape · 3.8 miFort Sumter Visitor Education Centervisitor center · 1.0 miSource: USGS Geographic Names Information System
Parks and public landsAlberta Long Lakepark · under a mileHarmon Field Parkpark · 1.5 miFort Sumter and Fort Moultrie National Historical Parkhistoric site · 3.2 mi · 165 acresCrab Bank Seabird Sanctuarystate conservation land · 2.7 miFort Lamar Heritage Preservestate historic site · 5.0 miCharles Pinckney National Historic Sitehistoric site · 7.7 miSource: USGS Protected Areas Database (PAD-US)
Earthquakes18 of magnitude 3 or more within 50 miles since 19703 of magnitude 4+, 0 of magnitude 5+Largest: magnitude 4.7 on 22 Nov 197415 mi away, near Ladson, South CarolinaMost recent: magnitude 3.3 on 27 Sep 202117 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Relatively HighCharleston County, SC, compared with all US countiesHigher-risk hazardsCoastal flooding Very HighHurricane Very HighEarthquake Relatively HighIce storm Relatively HighSource: FEMA National Risk Index (county level)
Air quality61% of days had good air in 2025222 of 365 days measured142 moderate, 1 unhealthy for sensitive groups daysMedian index 47, worst day 105main pollutant: fine particles (PM2.5)Source: US EPA Air Quality Index, Charleston County monitors, SC
Drinking waterCharleston Water System (sc1010001)serves 327,422 people from surface waterNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
Elevation12 ft4 m above sea levelSource: USGS 3D Elevation Program
Local servicesHospitalMUSC Health Hollings Cancer Center1.0 miPost officeCharleston Post Officeunder a mileTown hallCharleston City Hallunder a milePoliceCharleston County Sheriff's Office - Judicial Center Securityunder a mileFire stationCity of Charleston Fire Department Station 2under a mileSource: USGS National Structures Dataset
SchoolsWithin 2 mi16 schools3 elementary, 1 middle, 2 high, 10 otherSchoolCharleston Day Schoolunder a mileSchoolFirst Baptist School of Charlestonunder a mileElementaryMemminger School Of Global Studiesunder a mileCollegeCollege of Charlestonunder a mileSource: USGS National Structures Dataset
Getting aroundAirportCharleston International Airport CHS10 miInterstateI-261.5 miUS highwayUS 52 Sprunder a mileAmtrakCharleston, SC CHS7.8 miCoachNorth Charleston 4565 Gaynor AveGreyhound7.8 miTransit116 stops within a mileCharleston Area Regional Transportation Authority (CARTA), TriCounty LinkSources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 29402 ZIP area.
