North Charleston (SC) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit North Charleston.
Climate overview of North Charleston
The climate in North Charleston, South Carolina, United States of America, is marked by large temperature swings across the seasons, ranging from 33°C (91°F) in July to 15°C (59°F) in January.
The city has a wet climate, receiving around 1442 mm (57 in) of rainfall per year. Despite the high annual total, it has a distinct rainy season from June to August, with very warm summers and mild winters. August is the wettest month. The sunniest month is May, with 9.8 hours of sunshine per day on average.
North Charleston Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in North Charleston - and find the best time to visit.
Monthly Temperature in North Charleston
In North Charleston, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 33°C (91°F) in July to a moderate 15°C (59°F) in January.
Nighttime temperatures range from 23°C (73°F) in July to 3°C (37°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in North Charleston
North Charleston experiences significant rainfall throughout the year, averaging 1442 mm (57 in) of precipitation annually. The seasons in North Charleston bring significant changes in precipitation. The wettest month, August, receives heavy rainfall, with an average of 197 mm (7.8 in) of precipitation. This rainfall is distributed across 16 rainy days.
In contrast, the driest month, January, experiences much less rainfall, totaling 76 mm (3 in) over 10 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our North Charleston Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in North Charleston
In North Charleston, summer days are longer and more sunny, with daily sunshine hours peaking at 9.8 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 5.7 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in North Charleston by Month
The relative humidity is high throughout the year in North Charleston.
The city experiences its highest humidity in August, reaching 79%. In February, the humidity drops to its lowest level at 67%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit North Charleston
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: March, April, May and November
- Warmest weather: June, July and August
- Most sunshine: May and July
- Seasonal pattern: A distinct rainy season from June to August, with very warm summers and mild winters
Frequently asked questions about the climate in North Charleston
What is the best time to visit North Charleston?
March, April, May and November typically offer the most optimal weather in North Charleston. In contrast, July and August tend to have less optimal conditions. North Charleston has a distinct rainy season from June to August, with very warm summers and mild winters.
What temperatures can I expect in North Charleston?
Daytime highs range from 15°C (59°F) in January to 33°C (91°F) in July. Nighttime lows range from 3°C (37°F) to 23°C (73°F). Temperatures vary considerably through the year.
How much rain does North Charleston get?
Annual rainfall is around 1442 mm (57 in). August is the wettest month with 197 mm (7.8 in), while January is the driest with 76 mm (3 in).
How sunny is North Charleston?
North Charleston receives around 2,810 hours of sunshine per year. May is the sunniest month with 295 hours, while December is the cloudiest with just 170 hours. Overall, North Charleston enjoys abundant sunshine.
North Charleston 3-Day Forecast
North Charleston (SC) 3-Day Forecast
North Charleston on the map
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