April weather forecast
Southport, CT

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Weather in April

As the mid-year approaches, Southport's weather conditions become more tolerable with even warmer temperatures. There's the noteworthy absence of snowfall, an indication that winter has fully retreated making way for spring. However, the humidity levels remain consistent and high, keeping the air relatively cool and moist. April bears the potential of more outdoor activities as daylight extends and the amount of sunshine increases. Hence, it's a notable time in the Southport calendar, marking transitions that shape weather patterns for subsequent months.

Temperature

Southport sees an increase in the average high-temperature with the arrival of April, moving from March's frosty 44.2°F (6.8°C) to a fresh 54.7°F (12.6°C). Throughout the month of April, Southport sees a steady low-temperature average of 43.2°F (6.2°C).

Humidity

The months with the lowest humidity in Southport are April and November, with an average relative humidity of 72%.

Rainfall

In Southport, in April, it is raining for 15.8 days, with typically 3.15" (80mm) of accumulated precipitation. Throughout the year, in Southport, there are 170.1 rainfall days, and 37.76" (959mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Southport, Connecticut, are January through April, November and December. April is the last month it regularly snows. During 0.6 snowfall days, in April, Southport aggregates 0.08" (2mm) of snow. In Southport, during the entire year, snow falls for 24.9 days and aggregates up to 9.41" (239mm) of snow.

Ocean temperature

In Southport, in April, the average water temperature is 44.2°F (6.8°C).
Note: With the appropriate swimsuit, one can swim in 44.2°F (6.8°C) even if temperatures dip below 50°F (10°C); otherwise, be ready for cold shock and breath issues. A fleeting swim around 55.4°F (13°C) is distressing.

Daylight

In April, the average length of the day is 13h and 20min.
On the first day of April, sunrise is at 6:34 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 7:49 pm EDT.

Sunshine

In April, the average sunshine in Southport, Connecticut, is 8.5h.

UV index

In April, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: In April, a regular UV index of 3 translates into these guidelines:
Undertake precautions - It is suggested to shield oneself from sunburn. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are April temperatures in Southport?

In April, the average high-temperature and low-temperature are 54.7°F (12.6°C) and 43.2°F (6.2°C) respectively.

What is the least humid month in Southport?

April and November, with an average relative humidity of 72%, are the least humid months.

What is the average humidity in April in Southport?

In Southport, the average relative humidity in April is 72%.

How much does it rain in Southport in April?

In April, in Southport, Connecticut, the rain falls for 15.8 days. Throughout April, 3.15" (80mm) of precipitation is accumulated.

What is the last month it snows in Southport?

April is the last month it regularly snows in Southport, Connecticut. During 0.6 snowfall days, in April, Southport aggregates 0.08" (2mm) of snow.

What is the water temperature in April in Southport?

In April, the average ocean temperature in Southport, Connecticut, is 44.2°F (6.8°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

How many hours of daylight does Southport have in April?

The average day length in April in Southport is 13h and 20min.

When are sunrise and sunset in April in Southport?

On the first day of April in Southport, Connecticut, sunrise is at 6:34 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 7:49 pm EDT.

How many hours of sunshine does Southport have in April?

In Southport, the average sunshine duration in April is 8.5h.

What is the UV index intensity in April in Southport?

The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Southport, CT

Average temperature in April - Southport, CT
  • Average high temperature in April: 54.7°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in April: 43.2°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).

Average pressure in April
Southport, CT

Average pressure in April - Southport, CT
  • Average pressure in April: 29.98"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in April
Southport, CT

Average wind speed in April - Southport, CT
  • Average wind speed in April: 9.4mph

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in April
Southport, CT

Average humidity in April - Southport, CT
  • Average humidity in April: 72%

The months with the highest relative humidity are May and June (76%).
The months with the lowest relative humidity are April and November (72%).

Average rainfall in April
Southport, CT

Average rainfall in April - Southport, CT
  • Average rainfall in April: 3.15"

The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is January (2.48").

Average rainfall days in April
Southport, CT

Average rainfall days in April - Southport, CT
  • Average rainfall days in April: 15.8 days

The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (9.4 days).

Average snowfall in April
Southport, CT

Average snowfall in April - Southport, CT
  • Average snowfall in April: 0.08"

The month with the highest snowfall is March (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in April
Southport, CT

Average snowfall days in April - Southport, CT
  • Average snowfall days in April: 0.6 days

The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average sea temperature in April
Southport, CT

Average sea temperature in April - Southport, CT
  • Average sea temperature in April: 44.2°F

The best month for swimming (with the highest average sea temperature) is August (73°F).
The coldest month (with the lowest average sea temperature) is February (39°F).

Average daylight in April /
Average sunshine in April
Southport, CT

Average daylight in April / Average sunshine in April - Southport, CT
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in April: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

Average sunshine days in April
Southport, CT

Average sunshine days in April - Southport, CT
  • Average sunshine days in April: 12.5 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is June (11.2 days).

Average UV index in April
Southport, CT

Average UV index in April - Southport, CT
  • Average UV index in April: 3

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in April
Southport, CT

Average cloud cover in April - Southport, CT
  • Average cloud cover in April: 44

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in April
Southport, CT

Average visibility in April - Southport, CT
  • 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).

Southport, Connecticut, USA

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