Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
With the transition into April, Charleston experiences a subtle uplift in average high-temperatures, adjusting from a comfortable 65.1°F in March to an agreeable 72.7°F. Charleston's average low-temperature during April nights is observed to be a refreshing 60.4°F.Humidity
In Charleston, the average relative humidity in April is 74%.Rainfall
In April, the rain falls for 12.8 days. Throughout April, 2.83" of precipitation is accumulated. In Charleston, South Carolina, during the entire year, the rain falls for 178.9 days and collects up to 41.93" of precipitation.Snowfall
In Charleston, snow does not fall in February through November.Ocean temperature
In Charleston, the average seawater temperature in April is 67.5°F.Note: For most people, swimming in water at 67.5°F is not a pleasurable experience. Breathing control gets harder as the water temperature descends from 69.8°F to 59°F.
Daylight
In Charleston, the average length of the day in April is 13h and 1min.On the first day of April, sunrise is at 7:07 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 8:00 pm EDT.
Sunshine
In Charleston, the average sunshine in April is 9.8h.UV index
In Charleston, the average daily maximum UV index in April is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 6 during April leads to these advisories:
Take precautions against overexposure. Protection against sun damage is needed. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
FAQ
What are the temperatures in Charleston in April?
What is the average humidity in April in Charleston?
How many days does it rain in April in Charleston?
When it does not snow in Charleston?
How cold is the water in April in Charleston?
What is the average length of the day in April in Charleston?
When are sunrise and sunset in April in Charleston?
How long on average sun shines in April in Charleston?
How high is the UV index in April in Charleston?
Average temperature in April
Charleston, SC
- Average high temperature in April: 72.7°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (57°F).
- Average low temperature in April: 60.4°F
The month with the highest average low temperature is July (77.4°F).
The coldest month (with the lowest average low temperature) is January (44.4°F).
Average pressure in April
Charleston, SC
- Average pressure in April: 30.03"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 in April
Charleston, SC
- Average wind speed in April: 9.4mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is August (7.5mph).
Average humidity in April
Charleston, SC
- Average humidity in April: 74%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are January and March (73%).
Average rainfall in April
Charleston, SC
- Average rainfall in April: 2.83"
The wettest month (with the highest rainfall) is August (7.13").
The driest month (with the least rainfall) is January (1.42").
Average rainfall days in April
Charleston, SC
- Average rainfall days in April: 12.8 days
The month with the highest number of rainy days is August (24.8 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in April
Charleston, SC
- Average snowfall in April: 0"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in April
Charleston, SC
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in April
Charleston, SC
- Average sea temperature in April: 67.4°F
The best month for swimming (with the highest average sea temperature) is August (83.5°F).
The coldest month (with the lowest average sea temperature) is February (61.9°F).
Average daylight in April /
Average sunshine in April
Charleston, SC
- Average daylight in April: 13h 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 April: 9h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in April
Charleston, SC
- Average sunshine days in April: 15.8 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is August (3.8 days).
Average UV index in April
Charleston, SC
- Average UV index in April: 6
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 in April
Charleston, SC
- Average cloud cover in April: 28
The months with the most cloud cover are February and December (Cloud cover 39).
The months with the least cloud cover are June and July (Cloud cover 26).
Average visibility in April
Charleston, SC
- Average visibility in April: 6mi
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).
Charleston, South Carolina, USA
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