April weather forecast
Nantucket, MA

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Beautiful homes built on the water overlooking the boats on the water below, in Nantucket, Massachusetts
Beautiful homes built on the water overlooking the boats on the water below, in Nantucket, Massachusetts

Weather in April

April heralds the arrival of Spring in earnest in Nantucket, Massachusetts. A noticeable increase in the average high temperature can be observed, reaching 47.5°F (8.6°C). Rainfall continues at a steady pace, transitioning into the lush vibrancy of springtime. Nantucket experiences more daylight hours increasing opportunities to enjoy outdoor activities. April is typically the month where visitors can begin to explore the natural beauty of the seaside town more comfortably.

Temperature

A slight uplift of average high-temperatures is noted in April, with temperatures adjusting from a wintry 41.9°F (5.5°C) in March to a chilly 47.5°F (8.6°C). Nantucket's average low temperature, barely cooler than the daytime high, steadies at 42.8°F (6°C) during April.

Humidity

In Nantucket, the average relative humidity in April is 80%.

Rainfall

In Nantucket, in April, during 14.1 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. Throughout the year, there are 153 rainfall days, and 26.61" (676mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Ocean temperature

In April, the average ocean temperature is 44.1°F (6.7°C).
Note: Dipping in 44.1°F (6.7°C) at temperatures less than 50°F (10°C) without proper gear can lead to pronounced cold shock and breathing difficulties.

Daylight

The average length of the day in April is 13h and 21min.
On the first day of the month, sunrise is at 6:22 am and sunset at 7:05 pm. On the last day of April, sunrise is at 5:38 am and sunset at 7:37 pm EDT.

Sunshine

The average sunshine in April is 8.4h.

UV index

In Nantucket, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: In April, the average maximum UV index of 3 translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. When the Sun is at its strongest around midday, find shade and limit exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.

Frequently asked questions

What is the temperature in April in Nantucket?

During April, Nantucket experiences an average high-temperature of 47.5°F (8.6°C) and a low-temperature of 42.8°F (6°C).

What is the average humidity in April?

In April, the average relative humidity is 80%.

How much does it rain in April?

In Nantucket, in April, during 14.1 rainfall days, 2.52" (64mm) of precipitation is typically accumulated.

When it does not snow?

In Nantucket, snow does not fall in April through October.

Does it snow in April?

In April, in Nantucket, it doesn't snow. March is the latest month when it typically snows.

What is the ocean temperature in April?

In April, the average ocean temperature is 44.1°F (6.7°C). Swimming in 44.1°F (6.7°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.

What is the average length of the day in April?

In Nantucket, the average day length in April is 13h and 21min.

When is the sunrise / sunset in April?

In April, on the first day of the month, sunrise is at 6:22 am and sunset at 7:05 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 7:37 pm EDT.

How many hours of sunshine does Nantucket have in April?

In April, the average sunshine duration is 8.4h.

What is the UV index reading in April?

In April, the average daily maximum UV index 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
Nantucket, MA

Average temperature in April - Nantucket, MA
  • Average high temperature in April: 47.5°F

The warmest month (with the highest average high temperature) is August (72.1°F).
The month with the lowest average high temperature is February (39.7°F).

  • Average low temperature in April: 42.8°F

The month with the highest average low temperature is August (68.7°F).
The coldest month (with the lowest average low temperature) is February (32.5°F).

Average pressure in April
Nantucket, MA

Average pressure in April - Nantucket, MA
  • Average pressure in April: 29.98"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in April
Nantucket, MA

Average wind speed in April - Nantucket, MA
  • Average wind speed in April: 16mph

The windiest month (with the highest average wind speed) is January (18.5mph).
The calmest month (with the lowest average wind speed) is August (11.8mph).

Average humidity in April
Nantucket, MA

Average humidity in April - Nantucket, MA
  • Average humidity in April: 80%

The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are January, November and December (75%).

Average rainfall in April
Nantucket, MA

Average rainfall in April - Nantucket, MA
  • Average rainfall in April: 2.52"

The wettest month (with the highest rainfall) is October (3.27").
The driest month (with the least rainfall) is November (1.77").

Average rainfall days in April
Nantucket, MA

Average rainfall days in April - Nantucket, MA
  • Average rainfall days in April: 14.1 days

The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is February (9.2 days).

Average snowfall in April
Nantucket, MA

Average snowfall in April - Nantucket, MA
  • Average snowfall in April: 0"

The month with the highest snowfall is January (1.06").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in April
Nantucket, MA

Average snowfall days in April - Nantucket, MA
  • Average snowfall days in April: 0.3 days

The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in April
Nantucket, MA

Average sea temperature in April - Nantucket, MA
  • Average sea temperature in April: 44°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 February (37.9°F).

Average daylight in April /
Average sunshine in April
Nantucket, MA

Average daylight in April / Average sunshine in April - Nantucket, MA
  • 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 2min

The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).

Average sunshine days in April
Nantucket, MA

Average sunshine days in April - Nantucket, MA
  • Average sunshine days in April: 13.3 days

The month with the most sunshine days is August (16.5 days).
The month with the least sunshine days is January (11.3 days).

Average UV index in April
Nantucket, MA

Average UV index in April - Nantucket, 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 and December (UV index 2).

Average cloud cover in April
Nantucket, MA

Average cloud cover in April - Nantucket, MA
  • Average cloud cover in April: 45

The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in April
Nantucket, MA

Average visibility in April - Nantucket, 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).

Nantucket, Massachusetts, USA

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