Peak in July
Coolest in January
Heavy in August
Peak in dry season
Sea Temperature
Coastal Waters(Ocean)
Annual Average
Comfortable for most swimmers
Based on average sea surface temperature
Ocean
Charleston coastline
Charleston Monthly Weather Guide
Click any month to explore daily weather forecasts
January
February
March
April
May
June
July
August
September
October
November
December
Essential Travel Info for Charleston
Currency
USD
$ United States dollar
Language
English
Driving
Right side
Safety
Moderate Safety
GPI: 2.44
Best Time to Visit Charleston
Location, climate overview & historical trends
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📍 32.7765° N, 79.9311° W
Open in Google MapsCharleston is a prominent destination in United States.
Located at 32.78°N latitude,Charleston experiences a subtropical climate with distinct wet and dry seasons.
Based on 30 years of data, July is the warmest month (avg. 31°C), while January is the coolest. August sees the most rain (43% chance), making November the driest month.
Historical Climate Trend
30-Year Analysis+1.12°C
Total over 30 years
+0.37°C
Per decade
Linear regression analysis of historical maximum temperatures for Charleston, based on 1995-2024 satellite data from NASA POWER.
Best Time to Visit
NASA POWER Data (1991-2021)February, March, April
Best months to visit
23°C
Avg High
Based on 30 years of NASA satellite data,Charleston receives approximately 666mm of rainfall annually. These months offer optimal temperatures and minimal rain probability for your visit.
Climate Trends
EXCLUSIVE1995-2040 Temperature Trend
1995 Avg
22.4°
2024 Avg
23.2°
2040 Proj
23.8°
+0.37°C
per decade (observed)
+0.35°C
per decade (CMIP6)
🌡️ Charleston has warmed by +1.1°C since 1995. By 2040, an additional +0.6°C is projected (based on CMIP6 rate of 0.355°C/decade), for a total of +1.7°C from 1995 baseline.
NASA POWER (1995-2024) + CMIP6 (CMCC_CM2_VHR4, EC_Earth3P_HR, FGOALS_f3_H, HiRAM_SIT_HR, MRI_AGCM3_2_S, NICAM16_8S)
Travel Intelligence
Exclusive flight analytics & health data for Charleston
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Airport-to-Airport Logistics
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Flight Connectivity Analysis
Airport traffic data & seasonal patterns
Balanced traffic
0
slots per day
Peak
Aug
Low
Jan
Monthly Traffic Distribution
Key Connections
Health & Safety Advisory
CDC travel health recommendations
No Special Vaccinations Required
Standard travel precautions apply
Source: CDC Travelers' Health
View Complete Health GuideCharleston Climate Data by Month
Historical temperature and precipitation averages
| Month | Avg High (°C) | Rain Probability (%) | Status |
|---|---|---|---|
| January | 14°C | 19% | Neutral |
| February | 16°C | 22% | 😊 Pleasant |
| March | 19°C | 19% | 😊 Pleasant |
| April | 23°C | 18% | ✨ Perfect |
| May | 26°C | 21% | ✨ Perfect |
| June | 29°C | 37% | Neutral |
| July | 31°C | 43% | 🌧️ Rainy |
| August | 30°C | 43% | 🌧️ Rainy |
| September | 28°C | 31% | 😊 Pleasant |
| October | 24°C | 18% | ✨ Perfect |
| November | 19°C | 17% | 😊 Pleasant |
| December | 16°C | 21% | 😊 Pleasant |
Weather in Cities Near Charleston
Explore climate data for popular destinations within easy reach
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Compare weather conditions with nearby destinations for your trip planning
Compare Charleston Weather vs Popular Destinations
Similar Climate Destinations
Discover destinations with weather similar to Charleston
Adelaide
Australia
Antalya
Turkey
Arusha
Tanzania
Athens
Greece
Ponta Delgada
Portugal
Bodrum
Turkey
These destinations share similar weather patterns with Charleston. Perfect alternatives if you're looking for the same climate in a different location.
Charleston Weather FAQ
When is the best time to visit Charleston?
Honestly, look for months with mild temperatures (20°C-25°C) and low rain chance. Based on historical data, February, March, April are usually great choices.
When is the hottest month in Charleston?
July is historically the hottest month in Charleston with average highs of 31°C.
When does it rain the most in Charleston?
August typically sees the highest probability of rain (43%).
Is Charleston expensive?
Prices vary by season. The "Perfect" weather months usually coincide with peak tourist season and higher prices, while the rainy or cold months offer better deals.