May weather forecast
East Moriches, NY

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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.
Updated: Jun 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

An average high-temperature, in May, in East Moriches, is 60.4°F (15.8°C) and the average low-temperature is 54.1°F (12.3°C).

What is the most humid month?

With an average relative humidity of 80%, May is the most humid month.

What is the average humidity in May?

The average relative humidity in May is 80%.

How many days does it rain in May?

In May, the rain falls for 15 days. Throughout May, 2.4" (61mm) of precipitation is 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.

What is the ocean temperature in May in East Moriches?

In May, the average ocean temperature 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 East Moriches have in May?

The average day length in May in East Moriches is 14h and 29min.

When is the sunrise / sunset in May?

In May, on the first day of the month, 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.

How long on average sun shines in May?

The average sunshine duration in May is 8.9h.

How high is the UV index in May?

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe 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
East Moriches, NY

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in May - East Moriches, 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 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 - 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 - 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 - 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 - 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).

East Moriches, New York, USA

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