North Charleston Climate by Month
North Charleston, South Carolina, United States
Hot summers and cool winters, with rain spread through the year.
North Charleston has hot summers and cool winters, with rain spread through the year. Expect highs of 91°F (33°C) in July and 60°F (15°C) in January, with the coldest nights (January) near 39°F (4°C). About 51 in (1297 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 91°F(33°C)
- Average high, July
- Coldest nights
- 39°F(4°C)
- Average low, January
- Rain per year
- 51 in(1297 mm)
- No clear rainy season
- Humidity
- 70%
- Sunniest: May
Best and worst months in North Charleston
Best for weatherThe most comfortable weather comes in April, October and November, with highs around 75°F (24°C) and about 3.1 in (78 mm) of rain a month.
Least pleasantJuly and August are the least pleasant; August is the hottest, with highs of 90°F (32°C).
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)
North Charleston weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 60°F(15°C) | 39°F(4°C) | 3.3 in(85 mm) | 66% | 2.7 |
| FebFebruary | 64°F(18°C) | 42°F(5°C) | 2.9 in(74 mm) | 67% | 3.3 |
| MarMarch | 70°F(21°C) | 48°F(9°C) | 3.6 in(91 mm) | 65% | 4.5 |
| AprAprilBest | 77°F(25°C) | 54°F(12°C) | 3.3 in(84 mm) | 65% | 5.6 |
| MayMay | 83°F(29°C) | 63°F(17°C) | 3.1 in(80 mm) | 68% | 6.2 |
| JunJune | 89°F(31°C) | 71°F(21°C) | 5.9 in(150 mm) | 73% | 5.9 |
| JulJuly | 91°F(33°C) | 74°F(23°C) | 6.5 in(164 mm) | 74% | 6.0 |
| AugAugust | 90°F(32°C) | 73°F(23°C) | 7.3 in(185 mm) | 77% | 5.4 |
| SepSeptember | 86°F(30°C) | 69°F(20°C) | 5.7 in(146 mm) | 76% | 4.5 |
| OctOctoberBest | 79°F(26°C) | 58°F(15°C) | 3.4 in(86 mm) | 72% | 3.8 |
| NovNovemberBest | 70°F(21°C) | 47°F(9°C) | 2.5 in(63 mm) | 72% | 3.0 |
| DecDecember | 63°F(17°C) | 42°F(6°C) | 3.5 in(89 mm) | 67% | 2.4 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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