April weather forecastPerth Amboy, NJ

April
Weather in April
April weather in Perth Amboy, New Jersey, is characterized by a significant warming trend with higher highs and more moderate lows. The temperature varies between 44.6°F (7°C) and 58.1°F (14.5°C) highlighting a noticeable shift towards spring. April's warmer climate opens up opportunities for outdoor activities. There's a marked increase in daylight hours, and the sea temperature begins to rise, making beach outings and boating more welcoming. However, occasional rainfall—often brief and light—remains a common occurrence.Temperature
The onset of April brings a rise in the average high-temperature, elevating from a chilly 46.9°F (8.3°C) in March to a mild 58.1°F (14.5°C). The mean low-temperature during April nights is a chilly 44.6°F (7°C).Humidity
March, April, August and November, with an average relative humidity of 73%, are the least humid months.Rainfall
In Perth Amboy, during April, the rain falls for 15.3 days and regularly aggregates up to 2.36" (60mm) of precipitation. Throughout the year, there are 157.5 rainfall days, and 31.42" (798mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 0.3 snowfall days, in April, Perth Amboy aggregates 0.2" (5mm) of snow. In Perth Amboy, during the entire year, snow falls for 19.5 days and aggregates up to 8.35" (212mm) of snow.Ocean temperature
In Perth Amboy, in April, the average water temperature is 45.1°F (7.3°C).Note: Being in 45.1°F (7.3°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 April is 13h and 19min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:22 pm. On the last day of April, sunrise is at 5:56 am and sunset at 7:52 pm EDT.
Sunshine
In April, the average sunshine in Perth Amboy is 8.3h.UV index
In Perth Amboy, the average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 4 during April, leads to the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Opt for tightly woven and loose clothing to enhance protection from the Sun. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Perth Amboy, NJ
- Average high temperature in April: 58.1°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 April: 44.6°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 April
Perth Amboy, NJ
- Average pressure in April: 29.98"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 April
Perth Amboy, NJ
- Average wind speed in April: 9.4mph
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 April
Perth Amboy, NJ
- Average humidity in April: 73%
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 April
Perth Amboy, NJ
- Average rainfall in April: 2.36"
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 April
Perth Amboy, NJ
- Average rainfall days in April: 15.3 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 April
Perth Amboy, NJ
- Average snowfall in April: 0.2"
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 April
Perth Amboy, NJ
- Average snowfall days in April: 0.3 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 April
Perth Amboy, NJ
- Average sea temperature in April: 45.1°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 April /
Average sunshine in April
Perth Amboy, NJ
- Average daylight in April: 13h and 18min
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 April: 8h and 18min
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 April
Perth Amboy, NJ
- Average sunshine days in April: 13 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 April
Perth Amboy, NJ
- Average UV index in April: 4
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 April
Perth Amboy, NJ
- Average cloud cover in April: 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 April
Perth Amboy, NJ
- Average visibility in April: 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).





