May weather forecast
Westhampton Beach, NY

Share

Weather in May

The last month of the spring, May, is a mild month in Westhampton Beach, New York, with an average temperature fluctuating between 53.6°F (12°C) and 59.4°F (15.2°C).

Temperature

With the onset of May, Westhampton Beach observes a minor temperature ascent, with the average high-temperature adjusting from April's fresh 50.5°F (10.3°C) to a refreshing 59.4°F (15.2°C). Westhampton Beach observes a consistent average low-temperature of 53.6°F (12°C) throughout May nights.

Humidity

With an average relative humidity of 81%, May is the most humid month.

Rainfall

In Westhampton Beach, during May, the rain falls for 15.5 days and regularly aggregates up to 2.64" (67mm) of precipitation. Throughout the year, there are 148 rainfall days, and 29.76" (756mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, May and December. May is the first month it typically snows. Throughout May, in the average 0.1 snowfall days, it receives 0.16" (4mm) of snow. In Westhampton Beach, during the entire year, snow falls for 12.9 days and aggregates up to 4.45" (113mm) of snow.

Ocean temperature

In Westhampton Beach, in May, the average water temperature is 52.9°F (11.6°C).
Note: To swim in 52.9°F (11.6°C) at less than 50°F (10°C), ensure you're well-protected. Without it, be prepared for a sudden jolt of cold and breathing issues. Remember, even 55.4°F (13°C) is not welcoming.

Daylight

In Westhampton Beach, the average length of the day in May is 14h and 29min.
On the first day of the month, sunrise is at 5:47 am and sunset at 7:47 pm. On the last day of May, sunrise is at 5:21 am and sunset at 8:15 pm EDT.

Sunshine

The average sunshine in May is 8.9h.

UV index

In May, the average daily maximum UV index in Westhampton Beach, New York, is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: An average UV index of 5 in May transforms into this advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

The high-temperature, in May, in Westhampton Beach, is 59.4°F (15.2°C), while the low-temperature averages to 53.6°F (12°C).

What is the most humid month?

With an average relative humidity of 81%, May is the most humid month in Westhampton Beach.

What is the average humidity in May?

In May, the average relative humidity is 81%.

How much does it rain in May?

In Westhampton Beach, in May, during 15.5 rainfall days, 2.64" (67mm) of precipitation is typically accumulated.

When does it start snowing?

May is the first month it typically snows. Throughout May, in the average 0.1 snowfall days, it receives 0.16" (4mm) of snow.

What is the water temperature in May?

In Westhampton Beach, the average seawater temperature in May is 52.9°F (11.6°C). Swimming in 52.9°F (11.6°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Westhampton Beach have in May?

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

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 5:47 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.

How long on average sun shines in May?

In May, the average sunshine duration is 8.9h.

What is the UV index reading in May?

In Westhampton Beach, New York, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
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
Westhampton Beach, NY

Average temperature in May - Westhampton Beach, NY
  • Average high temperature in May: 59.4°F

The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in May: 53.6°F

The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).

Average pressure in May
Westhampton Beach, NY

Average pressure in May - Westhampton Beach, 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
Westhampton Beach, NY

Average wind speed in May - Westhampton Beach, NY
  • Average wind speed in May: 11.6mph

The windiest month (with the highest average wind speed) is January (15.4mph).
The calmest month (with the lowest average wind speed) is July (10.2mph).

Average humidity in May
Westhampton Beach, NY

Average humidity in May - Westhampton Beach, NY
  • Average humidity in May: 81%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is November (72%).

Average rainfall in May
Westhampton Beach, NY

Average rainfall in May - Westhampton Beach, NY
  • Average rainfall in May: 2.64"

The wettest month (with the highest rainfall) is October (3.07").
The driest month (with the least rainfall) is January (1.89").

Average rainfall days in May
Westhampton Beach, NY

Average rainfall days in May - Westhampton Beach, NY
  • Average rainfall days in May: 15.5 days

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in May
Westhampton Beach, NY

Average snowfall in May - Westhampton Beach, NY
  • Average snowfall in May: 0.16"

The month with the highest snowfall is March (1.54").
The months with the least snowfall are April, June, July, August, September, October and November (0").

Average snowfall days in May
Westhampton Beach, NY

Average snowfall days in May - Westhampton Beach, NY
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is February (3.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average sea temperature in May
Westhampton Beach, NY

Average sea temperature in May - Westhampton Beach, 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
Westhampton Beach, NY

Average daylight in May / Average sunshine in May - Westhampton Beach, 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 months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

Average sunshine days in May
Westhampton Beach, NY

Average sunshine days in May - Westhampton Beach, NY
  • Average sunshine days in May: 14.4 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is July (12.6 days).

Average UV index in May
Westhampton Beach, NY

Average UV index in May - Westhampton Beach, 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
Westhampton Beach, NY

Average cloud cover in May - Westhampton Beach, NY
  • Average cloud cover in May: 41

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 26).

Average visibility in May
Westhampton Beach, NY

Average visibility in May - Westhampton Beach, 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).

Westhampton Beach, New York, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location