Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
April brings a slight elevation in the average high-temperature, transitioning from March's frosty 44.2°F (6.8°C) to a fresh 52.3°F (11.3°C). With a barely noticeable fluctuation in temperature, West Sayville reaches an average low of 45.1°F (7.3°C) during the April nights.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 in West Sayville.Ocean temperature
In West Sayville, in April, the average water temperature is 45.3°F (7.4°C).Note: Swimming in 45.3°F (7.4°C) poses a severe threat. Even short exposure to 55.4°F (13°C) is chilling, and going below 50°F (10°C) can cause breathing irregularities and intense cold shock, based on one's stamina.
Daylight
In April, the average length of the day 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
In April, the average sunshine in West Sayville is 8.6h.UV index
The average daily maximum UV index in April in West Sayville is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: An average UV index of 3 in April transforms into this advice:
Adopt protective measures - Suggestions to resist sunburn are offered. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
What are April temperatures in West Sayville?
What is the average humidity in April in West Sayville?
How much does it rain in West Sayville in April?
When it does not snow in West Sayville?
Does it snow in West Sayville in April?
What is the water temperature in April in West Sayville?
How many hours of daylight does West Sayville have in April?
What time are sunrise and sunset in April in West Sayville?
How long on average sun shines in April in West Sayville?
How high is the UV index in April in West Sayville?
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 2min
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 4min
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).
West Sayville, New York, USA
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