Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average sea temperature in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's arrival signals an increase in average high-temperatures, moving from April's 58.1°F (14.5°C) to a still refreshing 67.8°F (19.9°C). Perth Amboy experiences an average nighttime temperature of 54.1°F (12.3°C) in the month of May.Humidity
February and May, with an average relative humidity of 77%, are the most humid months.Rainfall
In Perth Amboy, 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.Ocean temperature
In May, the average ocean temperature is 52.5°F (11.4°C).Note: Being in 52.5°F (11.4°C) waters at 55.4°F (13°C) is discomforting, but anything below 50°F (10°C) can jeopardize breathing and induce cold shock, factoring in physical endurance.
Daylight
In Perth Amboy, the average length of the day in May is 14h and 27min.On the first day of May, 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.
Sunshine
The average sunshine in May is 8.6h.UV index
In Perth Amboy, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: An average UV index of 5 in May transforms into this advice:
Take necessary precautions - Suggestions to elude sunburn are provided. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Perth Amboy in May?
What is the most humid month?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow?
Does it snow in May?
What is the ocean temperature in May?
What is the average length of the day in May?
When are sunrise and sunset in May in Perth Amboy?
How long on average sun shines in May?
What is the UV index reading in May?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
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).
Perth Amboy, New Jersey, USA
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