May weather forecast
Perth Amboy, NJ

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A scenic panorama of Perth Amboy Town in New Jersey, with the bright neon lights as the sun sets behind the colorful and heavy cloudy sky above
A scenic panorama of Perth Amboy Town in New Jersey, with the bright neon lights as the sun sets behind the colorful and heavy cloudy sky above

Weather in May

May weather in Perth Amboy, New Jersey, sits comfortably on the cusp of spring and summer. Warmer temperatures are the norm, temperatures escalating to an average high of 67.8°F (19.9°C) and a low around 54.1°F (12.3°C). This month ushers in a period of more consistent, warm weather with longer daylight hours. May's pleasant weather marks a transition to the outdoor season, encouraging picnics, barbecues, and waterfront activities. Despite periodic rainfall, the overall climate tends to be more stable, offering a sign of the summer to come.

Temperature

An escalation in the average high-temperature is seen with the onset of May, moving from a moderate 58.1°F (14.5°C) in April to an enjoyable 67.8°F (19.9°C). During May, Perth Amboy consistently records a temperature low averaging a cool 54.1°F (12.3°C).

Humidity

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

Rainfall

In Perth Amboy, in May, it is raining for 15.4 days, with typically 2.99" (76mm) of accumulated precipitation. In Perth Amboy, during the entire year, the rain falls for 157.5 days and collects up to 31.42" (798mm) of precipitation.

Snowfall

In Perth Amboy, snow does not fall in May through September.

Ocean temperature

In May, the average ocean temperature in Perth Amboy is 52.5°F (11.4°C).
Note: Swimming in 52.5°F (11.4°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

In Perth Amboy, New Jersey, the average length of the day in May is 14h and 27min.
On the first day of the month, sunrise is at 5:54 am and sunset at 7:53 pm. On the last day of May, sunrise is at 5:28 am and sunset at 8:21 pm EDT.

Sunshine

The average sunshine in May in Perth Amboy, New Jersey, is 8.6h.

UV index

In Perth Amboy, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 5 in May transforms into the following instructions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
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Frequently asked questions

What is the usual temperature for Perth Amboy in May?

The high-temperature in Perth Amboy, New Jersey, during May is 67.8°F (19.9°C) and the low-temperature is 54.1°F (12.3°C).

What are the most humid months in Perth Amboy?

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

What is the average humidity in May in Perth Amboy?

The average relative humidity in May is 77%.

How many days does it rain in May in Perth Amboy?

In May, the rain falls for 15.4 days. Throughout May, 2.99" (76mm) of precipitation is accumulated.

When it does not snow in Perth Amboy?

May through September are months without snowfall in Perth Amboy, New Jersey.

Does it snow in Perth Amboy 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 Perth Amboy?

In May, the average ocean temperature is 52.5°F (11.4°C). Swimming in 52.5°F (11.4°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 Perth Amboy?

In Perth Amboy, New Jersey, the average day length in May is 14h and 27min.

When are sunrise and sunset in May in Perth Amboy?

In May, on the first day of the month, sunrise is at 5:54 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 8:21 pm EDT.

How long on average sun shines in May in Perth Amboy?

The average sunshine duration in May is 8.6h.

What is the UV index intensity in May in Perth Amboy?

In May, the average daily maximum UV index in Perth Amboy, New Jersey, is 5. A UV Index of 3 to 5 symbolizes 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
Perth Amboy, NJ

Average temperature in May - Perth Amboy, 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).

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Average pressure in May
Perth Amboy, NJ

Average pressure in May - Perth Amboy, NJ
  • Average pressure in May: 30.01"Hg

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

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Average wind speed in May
Perth Amboy, NJ

Average wind speed in May - Perth Amboy, 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).

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Average humidity in May
Perth Amboy, NJ

Average humidity in May - Perth Amboy, NJ
  • Average humidity in May: 77%

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

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Average rainfall in May
Perth Amboy, NJ

Average rainfall in May - Perth Amboy, 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").

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Average rainfall days in May
Perth Amboy, NJ

Average rainfall days in May - Perth Amboy, 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).

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Average snowfall in May
Perth Amboy, NJ

Average snowfall in May - Perth Amboy, NJ
  • Average snowfall in May: 0"

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

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Average snowfall days in May
Perth Amboy, NJ

Average snowfall days in May - Perth Amboy, NJ
  • Average snowfall days in May: 0 days

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

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Average sea temperature in May
Perth Amboy, NJ

Average sea temperature in May - Perth Amboy, 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).

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Average daylight in May /
Average sunshine in May
Perth Amboy, NJ

Average daylight in May / Average sunshine in May - Perth Amboy, NJ
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in May
Perth Amboy, NJ

Average sunshine days in May - Perth Amboy, 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).

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Average UV index in May
Perth Amboy, NJ

Average UV index in May - Perth Amboy, NJ
  • 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).

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Average cloud cover in May
Perth Amboy, NJ

Average cloud cover in May - Perth Amboy, NJ
  • Average cloud cover in May: 45

The 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).

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Average visibility in May
Perth Amboy, NJ

Average visibility in May - Perth Amboy, NJ
  • 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).

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Perth Amboy, New Jersey, USA

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