April weather forecast
South Duxbury, MA

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Weather in April

April is a cool spring month in South Duxbury, Massachusetts, with temperature in the range of an average low of 41.5°F (5.3°C) and an average high of 50.9°F (10.5°C).

Temperature

South Duxbury's transition into April brings a slight rise in the average high-temperature, moving from a cold 42.1°F (5.6°C) in March to a fresh 50.9°F (10.5°C). South Duxbury reports an average low-temperature of 41.5°F (5.3°C) during the nights of April.

Humidity

In South Duxbury, the average relative humidity in April is 75%.

Rainfall

In April, the rain falls for 12 days. Throughout April, 1.1" (28mm) of precipitation is accumulated. Throughout the year, there are 120.2 rainfall days, and 12.24" (311mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall in South Duxbury, Massachusetts. April is the last month it regularly snows in South Duxbury. During 0.6 snowfall days, in April, South Duxbury aggregates 0.16" (4mm) of snow. Throughout the year, there are 21 snowfall days, and 3.54" (90mm) of snow is accumulated.

Ocean temperature

In South Duxbury, in April, the average water temperature is 43.2°F (6.2°C).
Note: Unprotected swimming in 43.2°F (6.2°C) is dangerous due to potential cold shock. Especially when temperatures go below 50°F (10°C), leading to hyperventilation.

Daylight

The average length of the day in April is 13h and 23min.
On the first day of the month, sunrise is at 6:23 am and sunset at 7:08 pm. On the last day of April, in South Duxbury, sunrise is at 5:38 am and sunset at 7:40 pm EDT.

Sunshine

In South Duxbury, the average sunshine in April is 8.3h.

UV index

In April, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 3 during April translates into the following guidance:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average April temperature?

During April, South Duxbury experiences an average high-temperature of 50.9°F (10.5°C) and a low-temperature of 41.5°F (5.3°C).

What is the average humidity in April?

The average relative humidity in April is 75%.

How much does it rain in April?

In South Duxbury, in April, it is raining for 12 days, with typically 1.1" (28mm) of accumulated precipitation.

What is the last month it snows?

April is the last month it regularly snows in South Duxbury. During 0.6 snowfall days, in April, South Duxbury aggregates 0.16" (4mm) of snow.

What is the ocean temperature in April?

In South Duxbury, in April, the average water temperature is 43.2°F (6.2°C). Swimming in 43.2°F (6.2°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does South Duxbury have in April?

In South Duxbury, Massachusetts, the average day length in April is 13h and 23min.

When is the sunrise / sunset in April?

In April, on the first day of the month, sunrise is at 6:23 am and sunset at 7:08 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 7:40 pm EDT.

How long on average sun shines in April?

The average sunshine duration in April is 8.3h.

What is the UV index intensity in April?

The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
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
South Duxbury, MA

Average temperature in April - South Duxbury, MA
  • Average high temperature in April: 50.9°F

The warmest months (with the highest average high temperature) are July and August (75.7°F).
The month with the lowest average high temperature is January (35.8°F).

  • Average low temperature in April: 41.5°F

The months with the highest average low temperature are July and August (65.8°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in April
South Duxbury, MA

Average pressure in April - South Duxbury, MA
  • Average pressure in April: 29.97"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in April
South Duxbury, MA

Average wind speed in April - South Duxbury, MA
  • Average wind speed in April: 11.2mph

The windiest month (with the highest average wind speed) is January (13mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).

Average humidity in April
South Duxbury, MA

Average humidity in April - South Duxbury, MA
  • Average humidity in April: 75%

The months with the highest relative humidity are June and July (80%).
The months with the lowest relative humidity are March and November (74%).

Average rainfall in April
South Duxbury, MA

Average rainfall in April - South Duxbury, MA
  • Average rainfall in April: 1.1"

The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is February (0.75").

Average rainfall days in April
South Duxbury, MA

Average rainfall days in April - South Duxbury, MA
  • Average rainfall days in April: 12 days

The month with the highest number of rainy days is July (13.2 days).
The month with the least rainy days is February (6.3 days).

Average snowfall in April
South Duxbury, MA

Average snowfall in April - South Duxbury, MA
  • Average snowfall in April: 0.16"

The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in April
South Duxbury, MA

Average snowfall days in April - South Duxbury, MA
  • Average snowfall days in April: 0.6 days

The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average sea temperature in April
South Duxbury, MA

Average sea temperature in April - South Duxbury, MA
  • Average sea temperature in April: 43.2°F

The best month for swimming (with the highest average sea temperature) is August (67.6°F).
The coldest month (with the lowest average sea temperature) is March (38.8°F).

Average daylight in April /
Average sunshine in April
South Duxbury, MA

Average daylight in April / Average sunshine in April - South Duxbury, MA
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in April: 8h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).

Average sunshine days in April
South Duxbury, MA

Average sunshine days in April - South Duxbury, MA
  • Average sunshine days in April: 16.1 days

The month with the most sunshine days is December (18.9 days).
The month with the least sunshine days is July (15.7 days).

Average UV index in April
South Duxbury, MA

Average UV index in April - South Duxbury, MA
  • Average UV index in April: 3

The months with the highest UV index are 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
South Duxbury, MA

Average cloud cover in April - South Duxbury, MA
  • Average cloud cover in April: 45

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in April
South Duxbury, MA

Average visibility in April - South Duxbury, MA
  • 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).

South Duxbury, Massachusetts, USA

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