April weather forecast
Sag Harbor, NY

Share

Weather in April

April in Sag Harbor, New York, is a fresh spring month, with temperature in the range of an average high of 50°F (10°C) and an average low of 44.2°F (6.8°C).

Temperature

The onset of April introduces a subtle rise in the average high-temperature, nudging from a chilly 43°F (6.1°C) in March to a fresh 50°F (10°C). Sag Harbor's nights in April maintain a consistent average of 44.2°F (6.8°C), demonstrating a minimal differential from its daytime temperature.

Humidity

In April, the average relative humidity is 77%.

Rainfall

In Sag Harbor, in April, it is raining for 14.3 days, with typically 2.99" (76mm) of accumulated precipitation. In Sag Harbor, during the entire year, the rain falls for 154.1 days and collects up to 34.92" (887mm) of precipitation.

Snowfall

In Sag Harbor, snow does not fall in April through October.

Ocean temperature

In Sag Harbor, the average seawater temperature in April is 45.1°F (7.3°C).
Note: It is risky to swim in 45.1°F (7.3°C). Temperatures beneath 50°F (10°C) induce rapid cold shock and hyperventilation.

Daylight

The average length of the day in April is 13h and 20min.
On the first day of the month, sunrise is at 6:31 am and sunset at 7:14 pm. On the last day of April, sunrise is at 5:47 am and sunset at 7:45 pm EDT.

Sunshine

In April, the average sunshine is 8.4h.

UV index

The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 3 during April leads to these instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average April temperature?

Sag Harbor in April has an average high-temperature of 50°F (10°C) and an average low-temperature of 44.2°F (6.8°C).

What is the average humidity in April?

The average relative humidity in April is 77%.

How many days does it rain in April?

In Sag Harbor, during April, the rain falls for 14.3 days and regularly aggregates up to 2.99" (76mm) of precipitation.

When it does not snow?

In Sag Harbor, snow does not fall in April through October.

Does it snow in April?

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

What is the ocean temperature in April?

In Sag Harbor, the average seawater temperature in April is 45.1°F (7.3°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 Sag Harbor have in April?

In April, the average day length is 13h and 20min.

When are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 6:31 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 7:45 pm EDT.

How long on average sun shines in April?

In Sag Harbor, the average sunshine duration in April is 8.4h.

What is the UV index intensity in April?

In Sag Harbor, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to 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
Sag Harbor, NY

Average temperature in April - Sag Harbor, NY
  • Average high temperature in April: 50°F

The warmest month (with the highest average high temperature) is August (75.9°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in April: 44.2°F

The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).

Average pressure in April
Sag Harbor, NY

Average pressure in April - Sag Harbor, NY
  • Average pressure in April: 29.98"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in April
Sag Harbor, NY

Average wind speed in April - Sag Harbor, NY
  • Average wind speed in April: 13.8mph

The windiest month (with the highest average wind speed) is January (16mph).
The calmest month (with the lowest average wind speed) is July (10.4mph).

Average humidity in April
Sag Harbor, NY

Average humidity in April - Sag Harbor, NY
  • Average humidity in April: 77%

The months with the highest relative humidity are May and June (81%).
The month with the lowest relative humidity is November (72%).

Average rainfall in April
Sag Harbor, NY

Average rainfall in April - Sag Harbor, NY
  • Average rainfall in April: 2.99"

The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days in April
Sag Harbor, NY

Average rainfall days in April - Sag Harbor, NY
  • Average rainfall days in April: 14.3 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (9.1 days).

Average snowfall in April
Sag Harbor, NY

Average snowfall in April - Sag Harbor, NY
  • Average snowfall in April: 0"

The month with the highest snowfall is March (2.36").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in April
Sag Harbor, NY

Average snowfall days in April - Sag Harbor, NY
  • Average snowfall days in April: 0.2 days

The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in April
Sag Harbor, NY

Average sea temperature in April - Sag Harbor, NY
  • Average sea temperature in April: 45.1°F

The best month for swimming (with the highest average sea temperature) is August (73.3°F).
The coldest month (with the lowest average sea temperature) is February (39.8°F).

Average daylight in April /
Average sunshine in April
Sag Harbor, NY

Average daylight in April / Average sunshine in April - Sag Harbor, NY
  • 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 36min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).

Average sunshine days in April
Sag Harbor, NY

Average sunshine days in April - Sag Harbor, NY
  • Average sunshine days in April: 14.7 days

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is February (12.8 days).

Average UV index in April
Sag Harbor, NY

Average UV index in April - Sag Harbor, NY
  • 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 and December (UV index 2).

Average cloud cover in April
Sag Harbor, NY

Average cloud cover in April - Sag Harbor, NY
  • Average cloud cover in April: 44

The month with the most cloud cover is December (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in April
Sag Harbor, NY

Average visibility in April - Sag Harbor, NY
  • 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).

Sag Harbor, New York, USA

Weather forecast for your location

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