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Contents
- The climate of North Charleston
- The best time to visit North Charleston
- The worst time to visit North Charleston
- Spring weather in North Charleston
- Summer weather in North Charleston
- Autumn weather in North Charleston
- Winter weather in North Charleston
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of North Charleston
North Charleston, nestled in South Carolina, USA, takes on a semblance of a humid subtropical area, marked by no dry season in its territory. This climate category can be attributed to its Köppen climate classification: Cfa.
North Charleston's temperatures span from 42.8°F (6°C) to 89.6°F (32°C), revealing a considerable difference between its warmest and coldest months. Relatively, the humidity constantly hovers at 72% to 77%. This high humidity along with abundant rainfall, ranging from 0.67" (17mm) to 4.29" (109mm), imparts a characteristic hazy attribute to the city’s climate. Rainfall days in North Charleston likewise show a vast range, varying from 6.9 to 22.7 days per month, denoting the alternating dry and wet periods throughout the year.
A highlighted phenomenon in North Charleston's climate is the absence of snowfall. With the exception of minor traces noted in December, the city remains free from the typical winter chills. Daylight hours range from 10 hours during the shorter winter days to 14.3 hours in the heart of summer, ensuring ample sunshine for both locals and visitors. Monthly visibility scores maintain stability at 6 miles, allowing for fair weather conditions most of the year.
North Charleston's temperatures span from 42.8°F (6°C) to 89.6°F (32°C), revealing a considerable difference between its warmest and coldest months. Relatively, the humidity constantly hovers at 72% to 77%. This high humidity along with abundant rainfall, ranging from 0.67" (17mm) to 4.29" (109mm), imparts a characteristic hazy attribute to the city’s climate. Rainfall days in North Charleston likewise show a vast range, varying from 6.9 to 22.7 days per month, denoting the alternating dry and wet periods throughout the year.
A highlighted phenomenon in North Charleston's climate is the absence of snowfall. With the exception of minor traces noted in December, the city remains free from the typical winter chills. Daylight hours range from 10 hours during the shorter winter days to 14.3 hours in the heart of summer, ensuring ample sunshine for both locals and visitors. Monthly visibility scores maintain stability at 6 miles, allowing for fair weather conditions most of the year.
The best time to visit North Charleston
The optimum time for a visit to North Charleston depends largely on the individual's temperature preference. However, the city shines most brightly in late spring, through May, and early autumn, in September. During these periods, the city experiences mild weather with temperature highs averaging between 80.8°F (27.1°C) in May and 84.4°F (29.1°C) in September. These months also have fewer rainfall days, with 13.4 and 14.8 respectively, ensuring mostly dry and sunny days. Combined with longer daylight hours, extending to 13.9 hours in May and 12.4 hours in September, North Charleston provides perfect conditions for outdoor activities.
The worst time to visit North Charleston
Adverse weather conditions dominate North Charleston during July and August, where temperatures soar to 89.6°F (32°C) and 88.3°F (31.3°C), respectively. Additionally, these months witness precipitation at its peak, reaching 2.68" (68mm) in July and a high 4.29" (109mm) in August, with more than 21 rainfall days each. Consequently, the high humidity along with soaring temperatures might render these months less favorable for tourists, especially those uncomfortable with humid and rainy conditions.
Spring weather in North Charleston
Spring brings a period of transformation to North Charleston, beginning with temperatures that steadily trek from 56.8°F (13.8°C) in March, to 66.2°F (19°C) in April, culminating to 80.8°F (27.1°C) by May. The increase remains twinned with a growth in daylight hours, which rise from 12 hours in March to an ample 13.9 hours by May. Rainfall tends to follow a similar pattern, moving from 1.14" (29mm) in March and peaking at 1.65" (42mm) in April, before it diminishes to 1.42" (36mm) by May.
Summer weather in North Charleston
Climate peaks during the summer months in North Charleston. Beginning in June, with an average high of 87.1°F (30.6°C), the city experiences its warmest days in July with 89.6°F (32°C), before a mild decrease to 88.3°F (31.3°C) in August. This is accompanied by escalated rainfall amounts, increasing from 2.6" (66mm) in June to a dramatic 4.29" (109mm) in August. Notwithstanding the high rainfall, longer days with summits of up to 14.3 hours of daylight in June enhance the brightness of North Charleston during these months.
Autumn weather in North Charleston
Autumn sets in with a noticeable reduction in heat, where the temperature drops from 84.4°F (29.1°C) in September to 76.1°F (24.5°C) in October and reaches 65.8°F (18.8°C) by November. Rainfall, prominent in the preceding summer months, begins to subside to 1.89" (48mm) in October, and decreasing significantly to 1.02" (26mm) in November. Declining daylight hours complement the seasonal transformation with a decrease from 12.4 hours in September to 10.5 hours in November.
Winter weather in North Charleston
The onset of winter brings a further cooling down in North Charleston. Starting from a chilly 60.4°F (15.8°C) in December, the temperature low reaches 42.8°F (6°C) in January, marking the coldest month. The winter months also receive the lowest rainfall of 0.67" (17mm) in January and 0.91" (23mm) in February. Lastly, the shorter days during winter also record the lowest daylight, resting at 10 hours in December and January.
Weather in January
In North Charleston, South Carolina, the start of the year brings cool temperatures, abundant clouds, and a breezy atmosphere. January's weather remains somewhat consistent, with maximum temperatures peaking at 56.8°F (13.8°C) and minimum temperatures falling to 42.8°F (6°C). Weather in January »
Weather in February
February’s weather sees a shift as North Charleston begins to show early signs of spring. The city experiences a moderate rise in temperatures looking at the high of 60.6°F (15.9°C) and the low of 45.9°F (7.7°C). Compared to the previous month, February witnesses higher temperatures, aligning more with the upcoming month of March. Weather in February »
Weather in March
As the city transitions into spring, March's weather in North Charleston, South Carolina, offers a welcoming change. There is a substantial increase in temperatures with the highs reaching 66.2°F (19°C) and the lows at 51.6°F (10.9°C). Weather in March »
Weather in April
North Charleston’s weather in April shows definitive signs of summer approaching with noticeably warmer temperatures. This month sees a significant rise in daytime temperatures, moving to 74.1°F (23.4°C) at the highest and 59°F (15°C) at the lowest. Weather in April »
Weather in May
With the onset of summer, May experiences a definitive shift in North Charleston's weather. The temperatures rise steeply with the highest reaching 80.8°F (27.1°C) and the lowest at 66.7°F (19.3°C). The increase in temperature is evident as May’s weather takes a marked leap from that of April, drawing closer to the hotter month of June. Weather in May »
Weather in June
June brings the true onset of summer to North Charleston, South Carolina, with its warm and humid weather. The average temperature values hit their stride with the highest at 87.1°F (30.6°C) and the lowest at 73.4°F (23°C). June’s weather, although warmer than May, is still comparatively mild than the intense heat of July. Weather in June »
Weather in July
As far as North Charleston's weather goes, July marks the peak of summer with the highest temperature averages for the year. Expect temperatures to settle between 76.5°F (24.7°C) at its lowest and 89.6°F (32°C) at its highest. Weather in July »
Weather in August
August arrives with slight relief from the peak summer heat, yet the weather in North Charleston, South Carolina, maintains its warm trend. The month's thermometer readings record an average high of 88.3°F (31.3°C) and a low averaging 76.3°F (24.6°C). Weather in August »
Weather in September
September brings the beginning of fall to North Charleston, introducing the initial stages of the cooling trend. The temperatures lessen compared to the summer months, with the highest reaching 84.4°F (29.1°C) and the lowest dipping down to 72°F (22.2°C). Weather in September »
Weather in October
North Charleston's weather in October captures the essence of the fall season with comfortable temperatures and vibrant fall foliage. The city cools down further from September, recording an average high temperature of 76.1°F (24.5°C) and an average low of 62.1°F (16.7°C). Weather in October »
Weather in November
The arrival of November brings about a noticeable dip in North Charleston's average temperatures. The city begins to experience colder days with a maximum temperature of 65.8°F (18.8°C) and minimum temperature falling to 51.8°F (11°C). Weather in November »
Weather in December
December marks the beginning of winter in North Charleston, South Carolina, with its cooler temperatures and festive atmosphere. North Charleston's weather rolls towards the year's core winter, observing the highest temperature of 60.4°F (15.8°C) and the lowest being 47.3°F (8.5°C). Weather in December »
Updated: Jun 9, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
January stands out as North Charleston's coldest month, with temperatures ranging between an average high of 56.8°F (13.8°C) and a low of 42.8°F (6°C).
What is the driest month?
The month with the least rainfall is January, when the rain falls for 8.8 days and typically collects 0.67" (17mm) of precipitation.
How much does it rain in North Charleston?
Throughout the year, there are 154.4 rainfall days, and 23.43" (595mm) of precipitation is accumulated.
When does it snow in North Charleston?
Months with snowfall are January, February and December.
How many days does it snow?
Throughout the year, there are 0.5 snowfall days.
When is the lowest UV index?
January is the month with the lowest UV index in North Charleston, with an average maximum UV index of 3.
What is the least humid month?
March is the least humid month, with an average relative humidity of 72%.
When it does not snow in North Charleston?
March through November are months without snowfall.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in North Charleston, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What are the months with the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 7.
When are the longest days?
The month with the longest days is June, with an average of 14h and 18min of daylight.
What month is the hottest in North Charleston?
North Charleston's warmest weather arrives in July, when temperatures average a high of 89.6°F (32°C) and a low of 76.5°F (24.7°C).
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10.9h of sunshine.
What is the rainiest month?
August is the month with the most rainfall. Rain falls for 22.7 days and accumulates 4.29" (109mm) of precipitation.
What is the most humid month?
The most humid month is December, with an average relative humidity of 77%.
What is the snowiest month?
December has the most snowfall days of the year. Snow falls for 0.3 days.
What is the month with the shortest days in North Charleston?
December has the shortest days of the year, with an average of 10h and 0min of daylight.
What is the month with the least sunshine?
With an average of 5.6h of sunshine, December has the least sunshine of the year.
Average temperature
North Charleston, SC
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (56.8°F).
The month with the highest average low temperature is July (76.5°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).
Average pressure
North Charleston, SC
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
30.03"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
29.98"Hg
- Average pressure in July:
30"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed
North Charleston, SC
- Average wind speed in January:
7.8mph - Average wind speed in February:
8.1mph - Average wind speed in March:
8.1mph - Average wind speed in April:
8.3mph - Average wind speed in May:
7.5mph - Average wind speed in June:
7mph
- Average wind speed in July:
7mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.1mph - Average wind speed in October:
7.5mph - Average wind speed in November:
7.6mph - Average wind speed in December:
7.6mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
North Charleston, SC
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (72%).
Average rainfall
North Charleston, SC
- Average rainfall in January:
0.67" - Average rainfall in February:
0.91" - Average rainfall in March:
1.14" - Average rainfall in April:
1.65" - Average rainfall in May:
1.42" - Average rainfall in June:
2.6"
- Average rainfall in July:
2.68" - Average rainfall in August:
4.29" - Average rainfall in September:
2.76" - Average rainfall in October:
1.89" - Average rainfall in November:
1.02" - Average rainfall in December:
2.4"
The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days
North Charleston, SC
- Average rainfall days in January:
8.8 days - Average rainfall days in February:
8.8 days - Average rainfall days in March:
9.9 days - Average rainfall days in April:
11.4 days - Average rainfall days in May:
13.4 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
21.2 days - Average rainfall days in August:
22.7 days - Average rainfall days in September:
14.8 days - Average rainfall days in October:
9.7 days - Average rainfall days in November:
6.9 days - Average rainfall days in December:
9.5 days
The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is November (6.9 days).
Average snowfall days
North Charleston, SC
- Average snowfall days in January:
0.1 days - Average snowfall days in February:
0.1 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.3 days
The month with the highest number of snowfall days is December (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
North Charleston, SC
- Average daylight in January:
10h and 2min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 5min - Average daylight in June:
14h and 2min
- Average daylight in July:
14h and 1min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 3min - Average daylight in December:
10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January:
5h and 5min - Average sunshine in February:
6h and 4min - Average sunshine in March:
7h and 4min - Average sunshine in April:
9h and 4min - Average sunshine in May:
10h and 2min - Average sunshine in June:
10h and 5min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 4min - Average sunshine in September:
9h and 0min - Average sunshine in October:
6h and 4min - Average sunshine in November:
6h and 1min - Average sunshine in December:
5h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days
North Charleston, SC
- Average sunshine days in January:
20.1 days - Average sunshine days in February:
17.2 days - Average sunshine days in March:
19.1 days - Average sunshine days in April:
17.7 days - Average sunshine days in May:
15.8 days - Average sunshine days in June:
9.7 days
- Average sunshine days in July:
6.9 days - Average sunshine days in August:
6.1 days - Average sunshine days in September:
11 days - Average sunshine days in October:
19.3 days - Average sunshine days in November:
20.4 days - Average sunshine days in December:
19 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (6.1 days).
Average UV index
North Charleston, SC
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover
North Charleston, SC
The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are June and July (Cloud cover 26).
Average visibility
North Charleston, SC
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
North Charleston, South Carolina, USA
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