April weather forecastWest Sayville, NY
April
Weather in April
April is a cool spring month in West Sayville, New York, with an average temperature varying between 52.3°F (11.3°C) and 45.1°F (7.3°C).Temperature
West Sayville's weather shows a minor temperature rise with the arrival of April, moving from a chilly 44.2°F (6.8°C) in March to a cool 52.3°F (11.3°C). A consistent average low-temperature of 45.1°F (7.3°C), with a minor variance from the daytime highs, is noted in West Sayville during the nights of April.Humidity
The average relative humidity in April is 74%.Rainfall
In April, the rain falls for 14.1 days. Throughout April, 2.95" (75mm) of precipitation is accumulated. In West Sayville, New York, during the entire year, the rain falls for 155.3 days and collects up to 34.84" (885mm) of precipitation.Snowfall
April, June through September and November are months without snowfall.Ocean temperature
In April, the average ocean temperature is 45.3°F (7.4°C).Note: Dipping in 45.3°F (7.4°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 19min.On the first day of April, sunrise is at 6:34 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 7:47 pm EDT.
Sunshine
The average sunshine in April is 8.6h.UV index
In April, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The UV index of 3 during April leads to these advisories:
Guard yourself - Avoiding sunburn is suggested. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
West Sayville, NY
- Average high temperature in April: 52.3°F
The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in April: 45.1°F
The month with the highest average low temperature is August (71.8°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure in April
West Sayville, NY
- 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
West Sayville, NY
- Average wind speed in April: 11.9mph
The windiest month (with the highest average wind speed) is January (13.8mph).
The calmest months (with the lowest average wind speed) are July and August (9mph).
Average humidity in April
West Sayville, NY
- Average humidity in April: 74%
The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is November (71%).
Average rainfall in April
West Sayville, NY
- Average rainfall in April: 2.95"
The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is January (2.17").
Average rainfall days in April
West Sayville, NY
- Average rainfall days in April: 14.1 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in April
West Sayville, NY
- Average snowfall in April: 0"
The month with the highest snowfall is March (2.13").
The months with the least snowfall are April, June, July, August, September and November (0").
Average snowfall days in April
West Sayville, NY
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in April
West Sayville, NY
- Average sea temperature in April: 45.4°F
The best month for swimming (with the highest average sea temperature) is August (74°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).
Average daylight in April /
Average sunshine in April
West Sayville, NY
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in April
West Sayville, NY
- Average sunshine days in April: 14.5 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in April
West Sayville, 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
West Sayville, NY
- Average cloud cover in April: 43
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in April
West Sayville, 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).
