May weather forecastPort Washington, NY
May
Weather in May
The last month of the spring, May, is a comfortable month in Port Washington, New York, with an average temperature ranging between min 53.6°F (12°C) and max 66.2°F (19°C).Temperature
In Port Washington, the average high-temperature in May rises, from a mild 56.1°F (13.4°C) in April, to a still refreshing 66.2°F (19°C). Port Washington observes an average nighttime temperature of 53.6°F (12°C) during May.Humidity
February, May and December, with an average relative humidity of 75%, are the most humid months.Rainfall
In Port Washington, in May, during 17.2 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. Throughout the year, there are 168.7 rainfall days, and 36.69" (932mm) of precipitation is accumulated.Snowfall
In Port Washington, snow does not fall in May through October.Ocean temperature
In May, the average ocean temperature in Port Washington is 54.1°F (12.3°C).Note: Beware when you're in 54.1°F (12.3°C) waters; 55.4°F (13°C) is chilling and anything below 50°F (10°C) could cause breathing hindrance and a sudden cold shock, given your physical condition.
Daylight
The average length of the day in May is 14h and 29min.On the first day of May, sunrise is at 5:52 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 8:19 pm EDT.
Sunshine
In Port Washington, the average sunshine in May is 8.8h.UV index
In Port Washington, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In May, the maximum UV index of 5 suggests these recommendations:
Undertake precautions - Guarding against sun damage is counselled. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Port Washington, NY
- Average high temperature in May: 66.2°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (36.5°F).
- Average low temperature in May: 53.6°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in May
Port Washington, NY
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Port Washington, NY
- Average wind speed in May: 7.8mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in May
Port Washington, NY
- Average humidity in May: 75%
The months with the highest relative humidity are February, May and December (75%).
The month with the lowest relative humidity is August (70%).
Average rainfall in May
Port Washington, NY
- Average rainfall in May: 2.99"
The wettest month (with the highest rainfall) is December (3.98").
The driest month (with the least rainfall) is February (2.36").
Average rainfall days in May
Port Washington, NY
- Average rainfall days in May: 17.2 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (9.2 days).
Average snowfall in May
Port Washington, NY
- Average snowfall in May: 0"
The month with the highest snowfall is March (2.32").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Port Washington, NY
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in May
Port Washington, NY
- Average sea temperature in May: 54.1°F
The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).
Average daylight in May /
Average sunshine in May
Port Washington, 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 48min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in May
Port Washington, NY
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in May
Port Washington, 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, November and December (UV index 2).
Average cloud cover in May
Port Washington, NY
- Average cloud cover in May: 43
The month with the most cloud cover is December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in May
Port Washington, 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).
