Climate
Mount Pleasant 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: March, May, November, when highs are mild and rain is lightest.
Month by month
| Month | High | Low | Rain | Wet days |
|---|---|---|---|---|
| January | 58°F | 44°F | 2.6 in | 8 |
| February | 60°F | 46°F | 2.6 in | 8 |
| March | 66°F | 52°F | 3.0 in | 8 |
| April | 72°F | 60°F | 3.0 in | 7 |
| May | 79°F | 68°F | 2.6 in | 7 |
| June | 84°F | 74°F | 4.8 in | 11 |
| July | 88°F | 77°F | 5.1 in | 12 |
| August | 86°F | 77°F | 6.1 in | 12 |
| September | 83°F | 73°F | 5.2 in | 9 |
| October | 76°F | 63°F | 4.1 in | 7 |
| November | 67°F | 53°F | 2.3 in | 6 |
| December | 61°F | 47°F | 2.9 in | 9 |
NOAA U.S. Climate Normals 1991–2020, Charleston City, Sc Us (4.4 mi away, 10 ft). Wet days: days with at least 0.01 in of precipitation.
Questions
What is the hottest month in Mount Pleasant?
July, with an average high of 88°F and low of 77°F.
What is the coldest month in Mount Pleasant?
January, with an average low of 44°F and high of 58°F.
When does it rain most in Mount Pleasant?
August is the wettest month, averaging 6.1 in of precipitation; the year totals about 44.3 inches.
What is the best time to visit Mount Pleasant?
For mild weather (highs between 65°F and 85°F) with the least rain, March, May, November.
Where do these numbers come from?
NOAA’s 1991–2020 U.S. Climate Normals for the Charleston City weather station, 4.4 miles from downtown: 30-year averages, not a forecast.