April weather forecastSeaside, SC
April
Weather in April
April in Seaside, South Carolina, is a pleasant spring month, with an average temperature varying between 61.9°F (16.6°C) and 71.4°F (21.9°C).Temperature
April's onset is marked by a subtle temperature increase, moving from a refreshing 64.4°F (18°C) in March to an agreeable 71.4°F (21.9°C). Throughout the nights in April, an average low-temperature of 61.9°F (16.6°C) is noted.Humidity
The average relative humidity in April is 75%.Rainfall
In Seaside, in April, during 8.8 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. In Seaside, during the entire year, the rain falls for 113.3 days and collects up to 10" (254mm) of precipitation.Snowfall
In Seaside, snow does not fall in February through November.Daylight
In Seaside, the average length of the day in April is 13h and 1min.On the first day of the month, sunrise is at 7:06 am and sunset at 7:40 pm. On the last day of April, sunrise is at 6:32 am and sunset at 8:01 pm EDT.
Sunshine
In Seaside, the average sunshine in April is 10h.UV index
In April, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The UV index of 6 during April leads to these advisories:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Seaside, SC
- Average high temperature in April: 71.4°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (57°F).
- Average low temperature in April: 61.9°F
The months with the highest average low temperature are July and August (78.4°F).
The coldest month (with the lowest average low temperature) is January (46.4°F).
Average pressure in April
Seaside, 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
Seaside, SC
- Average wind speed in April: 10.7mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).
Average humidity in April
Seaside, SC
- Average humidity in April: 75%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are January, March and October (73%).
Average rainfall in April
Seaside, SC
- Average rainfall in April: 0.71"
The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in April
Seaside, SC
- Average rainfall days in April: 8.8 days
The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is November (5.2 days).
Average snowfall days in April
Seaside, SC
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in April /
Average sunshine in April
Seaside, 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: 10h and 0min
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
Seaside, SC
- Average sunshine days in April: 20 days
The month with the most sunshine days is January (23.9 days).
The month with the least sunshine days is August (8.5 days).
Average UV index in April
Seaside, 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
Seaside, SC
- Average cloud cover in April: 27
The month with the most cloud cover is December (Cloud cover 39).
The months with the least cloud cover are June and July (Cloud cover 25).
Average visibility in April
Seaside, 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).





