Climate
North Charleston weather by month
Average highs, lows, rain and snow for every month, from 30 years of weather records.
Average temperatures
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Best time to visit: April, May, November, when highs are mild and rain is lightest.
Month by month
| Month | High | Low | Rain | Wet days |
|---|---|---|---|---|
| January | 60°F | 39°F | 3.4 in | 9 |
| February | 64°F | 42°F | 3.0 in | 9 |
| March | 70°F | 47°F | 3.4 in | 8 |
| April | 77°F | 55°F | 3.3 in | 8 |
| May | 84°F | 63°F | 3.3 in | 8 |
| June | 89°F | 70°F | 6.2 in | 12 |
| July | 91°F | 74°F | 6.6 in | 13 |
| August | 90°F | 73°F | 7.0 in | 13 |
| September | 85°F | 68°F | 6.0 in | 10 |
| October | 78°F | 58°F | 4.3 in | 7 |
| November | 69°F | 47°F | 2.7 in | 7 |
| December | 63°F | 42°F | 3.4 in | 9 |
NOAA U.S. Climate Normals 1991–2020, Charleston Intl Ap, Sc Us (1.9 mi away, 40 ft). Wet days: days with at least 0.01 in of precipitation.
Questions
What is the hottest month in North Charleston?
July, with an average high of 91°F and low of 74°F.
What is the coldest month in North Charleston?
January, with an average low of 39°F and high of 60°F.
When does it rain most in North Charleston?
August is the wettest month, averaging 7.0 in of precipitation; the year totals about 52.6 inches.
What is the best time to visit North Charleston?
For mild weather (highs between 65°F and 85°F) with the least rain, April, May, November.
Where do these numbers come from?
NOAA’s 1991–2020 U.S. Climate Normals for the Charleston Intl Ap weather station, 1.9 miles from downtown: 30-year averages, not a forecast.