April weather forecast
Seabrook Island, SC

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Weather in April

April is a warm spring month in Seabrook Island, South Carolina, with an average temperature ranging between min 59.4°F (15.2°C) and max 74.3°F (23.5°C).

Temperature

With the onset of April, Seabrook Island's average high-temperature experiences a slight rise, moving from March's refreshing 66.6°F (19.2°C) to a moderately hot 74.3°F (23.5°C). Throughout April, the temperature falls to an average low of 59.4°F (15.2°C).

Humidity

The average relative humidity in April is 74%.

Rainfall

In Seabrook Island, during April, the rain falls for 8.9 days and regularly aggregates up to 0.83" (21mm) of precipitation. In Seabrook Island, during the entire year, the rain falls for 118.7 days and collects up to 10.63" (270mm) of precipitation.

Snowfall

In Seabrook Island, snow does not fall in February through November.

Daylight

The average length of the day in April is 13h and 0min.
On the first day of the month, sunrise is at 7:07 am and sunset at 7:41 pm. On the last day of April, sunrise is at 6:33 am and sunset at 8:01 pm EDT.

Sunshine

The average sunshine in April in Seabrook Island is 9.8h.

UV index

The average daily maximum UV index in April is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 6 during April translates into these guidelines:
Prevent overexposure. Protection from the sun's harmful effects is needed. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Frequently asked questions

What is the temperature in April?

An average high-temperature, in April, in Seabrook Island, is 74.3°F (23.5°C) and the average low-temperature is 59.4°F (15.2°C).

What is the average humidity in April?

The average relative humidity in April is 74%.

How much does it rain in April?

In April, the rain falls for 8.9 days. Throughout April, 0.83" (21mm) of precipitation is accumulated.

When it does not snow in Seabrook Island?

February through November are months without snowfall.

What is the average length of the day in April?

In Seabrook Island, the average day length in April is 13h and 0min.

When are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 7:07 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 8:01 pm EDT.

How long on average sun shines in April?

The average sunshine duration in April is 9.8h.

What is the UV index intensity in April?

The average daily maximum UV index in April is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Seabrook Island, SC

Average temperature in April - Seabrook Island, SC
  • Average high temperature in April: 74.3°F

The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (57.2°F).

  • Average low temperature in April: 59.4°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 (43.2°F).

Average pressure in April
Seabrook Island, SC

Average pressure in April - Seabrook Island, SC
  • Average pressure in April: 30.03"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).

Average wind speed in April
Seabrook Island, SC

Average wind speed in April - Seabrook Island, SC
  • Average wind speed in April: 8.1mph

The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in April
Seabrook Island, SC

Average humidity in April - Seabrook Island, SC
  • Average humidity in April: 74%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are January and March (72%).

Average rainfall in April
Seabrook Island, SC

Average rainfall in April - Seabrook Island, SC
  • Average rainfall in April: 0.83"

The wettest month (with the highest rainfall) is August (1.73").
The driest month (with the least rainfall) is January (0.31").

Average rainfall days in April
Seabrook Island, SC

Average rainfall days in April - Seabrook Island, SC
  • Average rainfall days in April: 8.9 days

The month with the highest number of rainy days is August (16.9 days).
The month with the least rainy days is November (5.7 days).

Average snowfall days in April
Seabrook Island, SC

Average snowfall days in April - Seabrook Island, SC
  • Average snowfall days in April: 0 days

The months with the highest number of snowfall days are January and December (0.1 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
Seabrook Island, SC

Average daylight in April / Average sunshine in April - Seabrook Island, 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 6min).

  • Average sunshine in April: 9h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in April
Seabrook Island, SC

Average sunshine days in April - Seabrook Island, SC
  • Average sunshine days in April: 18.7 days

The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is August (9.6 days).

Average UV index in April
Seabrook Island, SC

Average UV index in April - Seabrook Island, 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
Seabrook Island, SC

Average cloud cover in April - Seabrook Island, 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 25).

Average visibility in April
Seabrook Island, SC

Average visibility in April - Seabrook Island, 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).

Seabrook Island, South Carolina, USA

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