May weather forecast and climate
Sewaren, NJ

Weather in May

May, the last month of the spring, in Sewaren, is a comfortable month, with temperature in the range of an average high of 67.8°F (19.9°C) and an average low of 54.1°F (12.3°C).

Temperature

In Sewaren, the average high-temperature rises, from a moderate 58.1°F (14.5°C) in April, to a comfortable 67.8°F (19.9°C). In Sewaren, in May, the average low-temperature is 54.1°F (12.3°C).

Humidity

February and May, with an average relative humidity of 77%, are most humid months.

Rainfall

In Sewaren, in May, during 15.4 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. Throughout the year, there are 157.5 rainfall days, and 31.42" (798mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Sewaren.

Ocean temperature

In Sewaren, the average seawater temperature is 52.5°F (11.4°C).
Note: Swimming in 52.5°F (11.4°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.

Daylight

The average length of the day in Sewaren, New Jersey, is 14.5h.

Sunshine

The average sunshine in Sewaren is 8.6h.

UV index

In May, the average daily maximum UV index in Sewaren, New Jersey, is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to the UV radiation for average individuals.
Note: The average daily UV index of 5 in May transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
[Resources]

FAQ

What are the most humid months in Sewaren?

February and May, with an average relative humidity of 77%, are most humid months in Sewaren, New Jersey.

What is the average humidity in May in Sewaren?

In May, the average relative humidity in Sewaren is 77%.

How much does it rain in Sewaren in May?

In Sewaren, New Jersey, in May, it is raining for 15.4 days, with typically 2.99" (76mm) of accumulated precipitation.

When it does not snow in Sewaren?

In Sewaren snow does not fall in May through September.

Does it snow in Sewaren in May?

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

What is the water temperature in May in Sewaren?

In Sewaren, New Jersey, in May, the average water temperature is 52.5°F (11.4°C). Swimming in 52.5°F (11.4°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 Sewaren have in May?

In Sewaren, the average length of the day in May is 14.5h.

How many hours of sunshine does Sewaren have in May?

In May, the average sunshine in Sewaren is 8.6h.

What is the UV index reading in May in Sewaren?

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in May
Sewaren, NJ

Average temperature in May - Sewaren, NJ
  • Average high temperature in May: 67.8°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in May: 54.1°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

[Resources]

Average pressure in May
Sewaren, NJ

Average pressure in May - Sewaren, NJ
  • Average pressure in May: 30.01"

The month with the highest atmospheric pressure is November (30.11").
The month with the lowest atmospheric pressure is June (29.93").

[Resources]

Average wind speed in May
Sewaren, NJ

Average wind speed in May - Sewaren, NJ
  • Average wind speed in May: 7.8mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

[Resources]

Average humidity in May
Sewaren, NJ

Average humidity in May - Sewaren, NJ
  • Average humidity in May: 77%

Months with the highest relative humidity are February and May (77%).
Months with the lowest relative humidity are March, April, August and November (73%).

[Resources]

Average rainfall in May
Sewaren, NJ

Average rainfall in May - Sewaren, NJ
  • Average rainfall in May: 2.99"

The wettest months (with the highest rainfall) are July and December (3.31").
The driest month (with the least rainfall) is September (1.81").

[Resources]

Average rainfall days in May
Sewaren, NJ

Average rainfall days in May - Sewaren, NJ
  • Average rainfall days in May: 15.4 days

The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is January (9.3 days).

[Resources]

Average snowfall in May
Sewaren, NJ

Average snowfall in May - Sewaren, NJ
  • Average snowfall in May: 0"

The month with the highest snowfall is March (3.39").
Months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average snowfall days in May
Sewaren, NJ

Average snowfall days in May - Sewaren, NJ
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (5.8 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

[Resources]

Average sea temperature in May
Sewaren, NJ

Average sea temperature in May - Sewaren, NJ
  • Average sea temperature in May: 52.5°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 (39.7°F).

[Resources]

Average daylight in May /
Average sunshine in May
Sewaren, NJ

Average daylight in May / Average sunshine in May - Sewaren, NJ
  • Average daylight in May: 14.5h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in May: 8.6h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.7h).

[Resources]

Average sunshine days in May
Sewaren, NJ

Average sunshine days in May - Sewaren, NJ
  • Average sunshine days in May: 13.9 days

The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (12.2 days).

[Resources]

Average UV index in May
Sewaren, NJ

Average UV index in May - Sewaren, NJ
  • Average UV index in May: 5

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

[Resources]

Average cloud cover in May
Sewaren, NJ

Average cloud cover in May - Sewaren, NJ
  • Average cloud cover in May: 45

Months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 30).

[Resources]

Average visibility in May
Sewaren, NJ

Average visibility in May - Sewaren, NJ
  • Average visibility in May: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location