April weather forecast
Saint Simons Island, GA

Share
A long pier with a large shed on the St. Simons Island, Georgia, the rocks and seawater and colorful sunset clouds in the sky above
A long pier with a large shed on the St. Simons Island, Georgia, the rocks and seawater and colorful sunset clouds in the sky above

Weather in April

April exhibits a significant jump in temperatures on the Island compared to its March counterpart. This period introduces more sunshine hours while rainfall continues its ascend, culminating in a warm and humid spring month. Hikers and cyclists can take advantage of the increased visibility, remaining steady at 6 miles. The significant boost in temperature between March and April is evident in the 67.3°F (19.6°C) average sea temperature, a 7.1°F (-13.8°C) increase from the preceding month. As the comfortable warmth of spring intensifies, April turns out to be an ideal time for seaside activities and soaking up sun rays on the Island's beautiful beaches.

Temperature

The transition from March to April in Saint Simons Island brings a subtle temperature rise, with average high-temperatures increasing from an agreeable 68.5°F (20.3°C) to a warm 75°F (23.9°C). Throughout April, an average low-temperature of 62.4°F (16.9°C) is expected.

Humidity

The average relative humidity in April is 74%.

Rainfall

In April, the rain falls for 10.8 days. Throughout April, 1.18" (30mm) of precipitation is accumulated. In Saint Simons Island, during the entire year, the rain falls for 163.3 days and collects up to 20.43" (519mm) of precipitation.

Snowfall

In Saint Simons Island, snow does not fall in January, March through November.

Ocean temperature

In Saint Simons Island, the average seawater temperature in April is 67.3°F (19.6°C).
Note: Swimming in water of 67.3°F (19.6°C) is not enjoyable for the majority of individuals. Breathing control becomes increasingly challenging as the temperature dips from 69.8°F (21°C) to 59°F (15°C).

Daylight

The average length of the day in April is 12h and 58min.
On the first day of April, sunrise is at 7:13 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 8:04 pm EDT.

Sunshine

The average sunshine in April is 9.6h.

UV index

In Saint Simons Island, the average daily maximum UV index in April is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 6 during April translates into the following guidance:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average April temperature?

April temperatures vary between a high-temperature of 75°F (23.9°C) and a low-temperature of 62.4°F (16.9°C).

What is the average humidity in April?

The average relative humidity in April in Saint Simons Island is 74%.

How much does it rain in April?

In April, the rain falls for 10.8 days. Throughout April, 1.18" (30mm) of precipitation is accumulated.

When it does not snow?

In Saint Simons Island, snow does not fall in January, March through November.

What is the ocean temperature in April?

In April, the average ocean temperature is 67.3°F (19.6°C). For most, swimming in 67.3°F (19.6°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

How many hours of daylight does Saint Simons Island have in April?

In Saint Simons Island, Georgia, the average day length in April is 12h and 58min.

When is the sunrise / sunset in April?

In April, on the first day of the month, sunrise is at 7:13 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 8:04 pm EDT.

How long on average sun shines in April?

In April, the average sunshine duration is 9.6h.

What is the UV index reading in April?

In Saint Simons Island, the average daily maximum UV index in April is 6. A UV Index estimate of 6 to 7 represents a high health threat 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
Saint Simons Island, GA

Average temperature in April - Saint Simons Island, GA
  • Average high temperature in April: 75°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (60.4°F).

  • Average low temperature in April: 62.4°F

The month with the highest average low temperature is August (77.4°F).
The coldest month (with the lowest average low temperature) is January (47.7°F).

Average pressure in April
Saint Simons Island, GA

Average pressure in April - Saint Simons Island, GA
  • 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, August and September (29.98"Hg).

Average wind speed in April
Saint Simons Island, GA

Average wind speed in April - Saint Simons Island, GA
  • Average wind speed in April: 8.8mph

The windiest months (with the highest average wind speed) are January and April (8.8mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

Average humidity in April
Saint Simons Island, GA

Average humidity in April - Saint Simons Island, GA
  • Average humidity in April: 74%

The months with the highest relative humidity are August and December (78%).
The month with the lowest relative humidity is March (72%).

Average rainfall in April
Saint Simons Island, GA

Average rainfall in April - Saint Simons Island, GA
  • Average rainfall in April: 1.18"

The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in April
Saint Simons Island, GA

Average rainfall days in April - Saint Simons Island, GA
  • Average rainfall days in April: 10.8 days

The month with the highest number of rainy days is August (23.3 days).
The month with the least rainy days is January (8.2 days).

Average snowfall days in April
Saint Simons Island, GA

Average snowfall days in April - Saint Simons Island, GA
  • Average snowfall days in April: 0 days

The months with the highest number of snowfall days are February and December (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).

Average sea temperature in April
Saint Simons Island, GA

Average sea temperature in April - Saint Simons Island, GA
  • Average sea temperature in April: 67.3°F

The best month for swimming (with the highest average sea temperature) is August (83.4°F).
The coldest month (with the lowest average sea temperature) is February (58.5°F).

Average daylight in April /
Average sunshine in April
Saint Simons Island, GA

Average daylight in April / Average sunshine in April - Saint Simons Island, GA
  • Average daylight in April: 13h and 0min

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in April: 9h and 4min

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 48min).

Average sunshine days in April
Saint Simons Island, GA

Average sunshine days in April - Saint Simons Island, GA
  • Average sunshine days in April: 18.1 days

The month with the most sunshine days is March (20.1 days).
The month with the least sunshine days is August (4.2 days).

Average UV index in April
Saint Simons Island, GA

Average UV index in April - Saint Simons Island, GA
  • Average UV index in April: 6

The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 3).

Average cloud cover in April
Saint Simons Island, GA

Average cloud cover in April - Saint Simons Island, GA
  • Average cloud cover in April: 27

The months with the most cloud cover are February and December (Cloud cover 38).
The months with the least cloud cover are April, May, June and July (Cloud cover 27).

Average visibility in April
Saint Simons Island, GA

Average visibility in April - Saint Simons Island, GA
  • 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).

Saint Simons Island, Georgia, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location