Open Travel Guide
Weather in South Carolina

South Carolina Weather & Climate Guide 2026

South Carolina's climate in numbers — the months that flatter it, the ones to avoid, and what to pack.

Weather through the year in United States

0° JAN 2° FEB 8° MAR 14° APR 18° MAY 24° JUN 26° JUL 26° AUG 21° SEP 15° OCT 9° NOV 4° DEC

Best time Shoulder Worth avoiding

Average daytime temperature in °C. Figures are for United States.

South Carolina blends antebellum grandeur with pristine Atlantic coastline, Lowcountry marsh landscapes, and vibrant culinary traditions. From the cobblestone streets of historic Charleston to the sprawling Grand Strand beaches of Myrtle Beach, the lush Blue Ridge foothills of the Upstate, and the primeval cypress swamps of Congaree National Park, the Palmetto State offers an extraordinary range of experiences anchored by legendary Southern hospitality.

South Carolina has a humid subtropical climate with hot, humid summers and mild winters. The coast stays temperate year-round while the Blue Ridge Upstate experiences cooler temperatures and occasional snow. Spring (March-May) and fall (September-November) are the most comfortable seasons for travel. Summers are sweltering with high humidity; winters are mild in the Lowcountry but can see frost and snow in the Upstate.

Best time to visit

Recommendation

Best: Year-round

Avoid: None

Month-by-month weather

Typical conditions throughout the year.

Items

The seasons

What to expect in each part of the year.

Season

Items

Spring, Summer, Fall, Winter

Crowds & peak times

When to expect tourists and when to avoid them.

Items
  • Period
    June-August (Summer)
    Level
    Very High
    Detail
    Peak season at Myrtle Beach, Hilton Head, and Charleston. Book hotels 2-3 months ahead. US-17 and Ocean Blvd get severe traffic jams.
  • Period
    Late March-May (Spring)
    Level
    High (Charleston) / Moderate (elsewhere)
    Detail
    Spoleto Festival (late May/early June) drives Charleston crowds. Gardens are gorgeous but popular.
  • Period
    October-November (Fall)
    Level
    Moderate
    Detail
    Comfortable crowds. October in the Upstate is busy for fall foliage. Charleston food festival in October increases city crowds.
  • Period
    December-February (Winter)
    Level
    Low
    Detail
    Lowest crowds outside holiday periods (Thanksgiving, Christmas-New Year). Best value for accommodation.

Major events & festivals

Time your visit around what matters.

Late May - early June

April

May

September-October

December

April