April weather forecastSag Harbor, NY
April
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 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: 13h and 18min
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 24min
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: 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: 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: 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: 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).





