North Charleston, SC weather in July
In July, North Charleston sees highs around 88°F and lows around 77°F: hot and oppressively humid, with frequent rain. Rain falls on about 13 days. It is one of the warmest months in North Charleston.
- Normal high
- 88°F
- Normal low
- 77°F
- Wet days
- 13
- 6.6 in total
- Muggy days
- 30
- dew point 65°F+
How July changes from start to finish
| July 1 | July 31 | |
|---|---|---|
| Normal high | 87°F | 88°F |
| Normal low | 76°F | 77°F |
| Chance of a wet day | 42% | 44% |
| Sunrise / sunset | 6:15 am / 8:32 pm | 6:33 am / 8:19 pm |
| Daylight | 14.3 h | 13.8 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical July day
- 6 am75°Fdew point 73°F
- 9 am83°Fdew point 73°F
- Noon88°Fdew point 73°F
- 3 pm88°Fdew point 73°F
- 6 pm84°Fdew point 73°F
- 9 pm79°Fdew point 74°F
NOAA hourly normals (local standard time) from Charleston Intl Airport (5 mi away); average wind 7 mph; clear or few clouds in 33% of daytime hours, mostly cloudy or overcast in 34%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph19 of 31
- Hot dayshigh 90°F or more9 of 31
- Muggy daysdaily mean dew point 65°F or more30 of 31
- Wet daysat least 0.01 in of rain or melted snow13 of 31
- Notable rainat least 0.10 in9 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per July, counted from daily records for each year 1991-2020.
Rain in July
Normal precipitation is 6.6 in; a dry July brings about 4.5 in and a wet one about 8.4 in (25th and 75th percentiles). About 4 days bring half an inch or more, and about 2 an inch or more.
How July varies from year to year
- Warmest July, 1991-20201998: average high 92°F
- Coolest July2013: average high 85°F
- Wettest July2000: 10.8 in
- Driest July2020: 2.5 in
- Highest reading100°F (July 11, 2001)
- Lowest reading65°F (July 31, 1997)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
July compared with June and August
| June | July | August | |
|---|---|---|---|
| Normal high | 84°F | 88°F | 86°F |
| Normal low | 74°F | 77°F | 77°F |
| Wet days | 12 | 13 | 13 |
| Comfortable days | 1 | 0 | 0 |
| Daylight | 14.3 h | 14.1 h | 13.3 h |
Highs change by +4°F from June and -2°F into August.
Nearby alternatives in July
- Warmer: Columbia, SC100 mi · high 96°F · 12 wet days
- Drier: Concord, NC180 mi · high 92°F · 10 wet days
How North Charleston ranks in July
- Normal high184th warmest of 378 cities; 4th of 5 in South Carolina
- Wet days339th driest of 378
- Comfortable days307th most of 340
What to pack for North Charleston in July
- Light, breathable clothing – highs near 88°F and about 30 muggy days
- A rain jacket or umbrella – rain on about 13 days
- A swimsuit – about 19 beach days
- Sunglasses and sunscreen – about 14.1 hours of daylight and highs near 88°F
Heating and cooling
July has 0 heating degree days and 536 cooling degree days (base 65°F), 13% of the year's total heating and cooling demand.
Questions
How hot is North Charleston in July?
The normal high is 88°F and the normal low is 77°F. From 1991 to 2020 the hottest July reading was 100°F (most recently on July 11, 2001).
Does it rain a lot in North Charleston in July?
About 13 days in July have at least 0.01 in of precipitation, and the normal total is 6.6 in. The wettest July in 1991-2020 was in 2000 (10.8 in); the driest was in 2020 (2.5 in).
Is July a good time to visit North Charleston?
July ranks 11th of 12 months on our comfort score for North Charleston (44 out of 100). It has almost no comfortable days and about 9 days at 90°F or hotter. The best month is April.
Where the numbers come from
- Temperature: Charleston City (USW00013782), 5.7 mi SSE of the city center, 10 ft . NOAA normals and daily records, 1991-2020.
- Rain, snowfall, snow depth, frost dates, humidity and wind by hour and cloud cover: Charleston Intl Airport (USW00013880), 4.9 mi NW of the city center, 40 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Charleston AFB/International Airport (722080-13880), 4.9 mi NW of the city center, 39 ft . Hourly observations, 1991-2020.