Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average sea temperature in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
West Sayville observes a slight ascent in average high-temperatures during May, adjusting from a fresh 52.3°F (11.3°C) in April to an enjoyable 61.2°F (16.2°C). West Sayville's nocturnal average in May closely mirrors its daytime temperatures, settling at a cool 54.3°F (12.4°C).Humidity
The months with the highest humidity are May and June, with an average relative humidity of 78%.Rainfall
In West Sayville, New York, in May, during 16.1 rainfall days, 2.91" (74mm) of precipitation is typically 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
Months with snowfall in West Sayville are January through March, May, October and December. May is the first month it typically snows in West Sayville. Throughout May, in the average 0.1 snowfall days, it receives 0.16" (4mm) of snow. In West Sayville, during the entire year, snow falls for 14.7 days and aggregates up to 6.14" (156mm) of snow.Ocean temperature
In West Sayville, New York, the average seawater temperature in May is 53.4°F (11.9°C).Note: Engaging in a swim in 53.4°F (11.9°C) can threaten life. Brief exposure to 55.4°F (13°C) waters is uneasy, and submersion below 50°F (10°C) can lead to cold shock and disrupted breathing patterns, varying by individual.
Daylight
The average length of the day in May is 14h and 28min.On the first day of May, sunrise is at 5:49 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 5:23 am and sunset at 8:17 pm EDT.
Sunshine
In May, the average sunshine is 8.9h.UV index
In West Sayville, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A typical high UV index of 5 in May suggests the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
What are May temperatures in West Sayville?
What are the most humid months in West Sayville?
What is the average humidity in May in West Sayville?
How many days does it rain in May in West Sayville?
When does it start snowing in West Sayville?
What is the ocean temperature in May in West Sayville?
How many hours of daylight does West Sayville have in May?
When is the sunrise / sunset in May in West Sayville?
How many hours of sunshine does West Sayville have in May?
How high is the UV index in May in West Sayville?
Average temperature in May
West Sayville, NY
- Average high temperature in May: 61.2°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 May: 54.3°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 May
West Sayville, NY
- Average pressure in May: 30.01"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 May
West Sayville, NY
- Average wind speed in May: 10.1mph
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 May
West Sayville, NY
- Average humidity in May: 78%
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 May
West Sayville, NY
- Average rainfall in May: 2.91"
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 May
West Sayville, NY
- Average rainfall days in May: 16.1 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 May
West Sayville, NY
- Average snowfall in May: 0.16"
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 May
West Sayville, NY
- Average snowfall days in May: 0.1 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 May
West Sayville, NY
- Average sea temperature in May: 53.4°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 May /
Average sunshine in May
West Sayville, NY
- Average daylight in May: 14h and 3min
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 May: 8h and 5min
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 May
West Sayville, NY
- Average sunshine days in May: 13.5 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 May
West Sayville, NY
- Average UV index in May: 5
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 May
West Sayville, NY
- Average cloud cover in May: 42
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 May
West Sayville, NY
- Average visibility in May: 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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