South Carolina climate

World Climates covers 2 places in South Carolina. By annual mean temperature, the warmest is Charleston (19 °C66 °F) and the coolest is Columbia (18 °C64 °F). The wettest is Charleston with 1,246 mm49 in of precipitation per year, the driest Columbia with 1,150 mm45 in.

The most common climate types (Köppen classification computed from these averages) are humid subtropical (Cfa, 2 places).

The highest monthly average high is in Columbia (34 °C92 °F in July); the lowest monthly average low is in Columbia (1 °C34 °F in January).

Temperature and rainfall across South Carolina

Annual mean temperatures in South Carolina range from 18 °C64 °F to 19 °C66 °F. The typical place (the median of all 2) has a year average of 18 °C65 °F. Annual precipitation ranges from 1,150 mm45 in to 1,246 mm49 in. The median place receives about 1,198 mm47 in in an average year.

In 0 places of 2, the coldest month has an average low below 0 °C (32 °F). In 2 places, the warmest month has an average high above 30 °C (86 °F). No place here gets less than 250 mm (10 in) of precipitation a year. None gets more than 2,000 mm (79 in) a year.

Averaged over all 2 places, July is the warmest month, with a mean of 28 °C82 °F. January is the coldest, with 8 °C46 °F. The wettest month on average is August (143 mm5.6 in). The driest is January (69 mm2.7 in). Single places can differ a lot from this average, so check the page of each city.

The table below lists the places sorted by population. The largest ones covered here are Columbia and Charleston. Each city page has a chart and a table for every month. It also shows the best time to visit and what to pack. The figures are 25-year averages for 2001–2025 from NASA POWER. They describe grid cells of roughly 50–70 km, not single weather stations.

Climate of each place in South Carolina

Columbia has a humid subtropical climate (Köppen Cfa). Its year average is 18 °C64 °F. The warmest month is July, with an average high of 34 °C92 °F. The coldest is January, with an average low of 1 °C34 °F. About 1,150 mm45 in of precipitation falls in a year. July is the wettest month and January the driest. By our comfort score, the best months to visit are April and May and October.

Charleston has a humid subtropical climate (Köppen Cfa). Its year average is 19 °C66 °F. The warmest month is July, with an average high of 32 °C90 °F. The coldest is January, with an average low of 4 °C39 °F. About 1,246 mm49 in of precipitation falls in a year. August is the wettest month and January the driest. By our comfort score, the best months to visit are March–May and October and November.

Frequently asked questions

Which is the warmest place in South Carolina?

By annual mean temperature, the warmest place in South Carolina is Charleston at 19 °C66 °F. The coolest is Columbia at 18 °C64 °F.

Where does it rain the most in South Carolina?

Charleston gets the most precipitation, 1,246 mm49 in in an average year. The driest place is Columbia with 1,150 mm45 in.

How many places in South Carolina does this site cover?

World Climates has climate data for 2 places in South Carolina. Each one has a page with monthly averages for temperature, rainfall, humidity and daylight.