Mount Pleasant, South Carolina Climate by Month
Mount Pleasant, South Carolina, United States
Hot summers and cool winters, with rain spread through the year.
The climate in Mount Pleasant is one of hot summers and cool winters, with rain spread through the year. July is the warmest month, with highs around 90°F (32°C); January is the coolest at 59°F (15°C), and nights dip to 40°F (4°C). It gets 52 in (1315 mm) of rain a year, spread across the months.
- Warmest month
- 90°F(32°C)
- Average high, July
- Coldest nights
- 40°F(4°C)
- Average low, January
- Rain per year
- 52 in(1315 mm)
- No clear rainy season
- Humidity
- 71%
- Sunniest: May
Best and worst months in Mount Pleasant
Best for weatherApril is the best time for weather in Mount Pleasant: highs near 76°F (24°C) and about 3.3 in (83 mm) of rain a month.
Least pleasantJuly and August are the least pleasant; August is the wettest, with 7.6 in (192 mm) of rain.
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in April.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Mount Pleasant weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 59°F(15°C) | 40°F(4°C) | 3.3 in(84 mm) | 67% | 2.7 |
| FebFebruary | 62°F(17°C) | 42°F(6°C) | 3.0 in(77 mm) | 67% | 3.4 |
| MarMarch | 69°F(20°C) | 48°F(9°C) | 3.6 in(92 mm) | 66% | 4.6 |
| AprAprilBest | 76°F(24°C) | 55°F(13°C) | 3.3 in(83 mm) | 66% | 5.7 |
| MayMay | 82°F(28°C) | 63°F(17°C) | 3.2 in(81 mm) | 69% | 6.3 |
| JunJune | 87°F(31°C) | 71°F(21°C) | 6.0 in(153 mm) | 74% | 6.0 |
| JulJuly | 90°F(32°C) | 74°F(23°C) | 6.5 in(166 mm) | 75% | 6.1 |
| AugAugust | 89°F(32°C) | 73°F(23°C) | 7.6 in(192 mm) | 78% | 5.4 |
| SepSeptember | 85°F(29°C) | 69°F(21°C) | 5.8 in(148 mm) | 76% | 4.5 |
| OctOctober | 78°F(26°C) | 59°F(15°C) | 3.5 in(88 mm) | 72% | 3.8 |
| NovNovember | 69°F(21°C) | 48°F(9°C) | 2.6 in(66 mm) | 71% | 3.0 |
| DecDecember | 62°F(17°C) | 43°F(6°C) | 3.3 in(85 mm) | 67% | 2.5 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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