May weather forecastEast Moriches, NY
May
Weather in May
May, the last month of the spring in East Moriches, is a mild month, with an average temperature fluctuating between 54.1°F (12.3°C) and 60.4°F (15.8°C).Temperature
May sees a temperature increase, moving from a fresh 51.4°F (10.8°C) in April to a mild 60.4°F (15.8°C). Night temperatures during May experience a slight downturn, averaging a fresh 54.1°F (12.3°C).Humidity
The most humid month is May, with an average relative humidity of 80%.Rainfall
In East Moriches, during May, the rain falls for 15 days and regularly aggregates up to 2.4" (61mm) of precipitation. In East Moriches, during the entire year, the rain falls for 156.2 days and collects up to 30.2" (767mm) of precipitation.Snowfall
In East Moriches, snow does not fall in May through October.Ocean temperature
In East Moriches, the average seawater temperature in May is 52.9°F (11.6°C).Note: Engaging in a swim in 52.9°F (11.6°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
In May, the average length of the day is 14h and 29min.On the first day of May, sunrise is at 5:48 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 5:21 am and sunset at 8:15 pm EDT.
Sunshine
In May, the average sunshine is 8.9h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: In May, an average UV index of 5 transforms into the following instructions:
Act with care - The suggestion to avoid sunburn is emphasized. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
East Moriches, NY
- Average high temperature in May: 60.4°F
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in May: 54.1°F
The months with the highest average low temperature are July and August (71.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in May
East Moriches, 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
East Moriches, NY
- Average wind speed in May: 10.7mph
The windiest month (with the highest average wind speed) is January (14.5mph).
The calmest months (with the lowest average wind speed) are July and August (9.6mph).
Average humidity in May
East Moriches, NY
- Average humidity in May: 80%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is November (71%).
Average rainfall in May
East Moriches, NY
- Average rainfall in May: 2.4"
The wettest month (with the highest rainfall) is December (3.31").
The driest months (with the least rainfall) are January, February and September (2.01").
Average rainfall days in May
East Moriches, NY
- Average rainfall days in May: 15 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (9 days).
Average snowfall in May
East Moriches, NY
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
East Moriches, NY
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (5.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in May
East Moriches, NY
- Average sea temperature in May: 52.8°F
The best month for swimming (with the highest average sea temperature) is August (73.7°F).
The coldest month (with the lowest average sea temperature) is February (38°F).
Average daylight in May /
Average sunshine in May
East Moriches, NY
- Average daylight in May: 14h and 30min
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 May: 8h and 54min
The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in May
East Moriches, NY
- Average sunshine days in May: 14.2 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in May
East Moriches, 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
East Moriches, NY
- Average cloud cover in May: 41
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in May
East Moriches, 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).





