May weather forecast
Port Washington, NY

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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.

Frequently asked questions

What is the average May temperature?

The high-temperature, in May, in Port Washington, records 66.2°F (19°C), while the low-temperature is 53.6°F (12°C).

What is the most humid month?

The months with the highest humidity in Port Washington are February, May and December, with an average relative humidity of 75%.

What is the average humidity in May?

In May, the average relative humidity is 75%.

How many days does it rain in May?

In Port Washington, in May, during 17.2 rainfall days, 2.99" (76mm) of precipitation is typically accumulated.

When it does not snow?

May through October are months without snowfall.

Does it snow in May?

In May, it doesn't snow. April is the latest month when it typically snows.

How cold is the water in May?

In Port Washington, the average seawater temperature in May is 54.1°F (12.3°C). Swimming in 54.1°F (12.3°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in May?

In May, the average day length is 14h and 29min.

What time are sunrise and sunset in May in Port Washington?

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.

How long on average sun shines in May?

In Port Washington, the average sunshine duration in May is 8.8h.

What is the UV index reading in May?

In Port Washington, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Port Washington, NY

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in May - Port Washington, NY
  • Average daylight in May: 14h and 3min

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 5min

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 - 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 - 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 - 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 - 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).

Port Washington, New York, USA

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