May weather forecastAtlantic City, NJ

Clear blue waters approaching the sandy beach of the distant Atlantic City in New Jersey

May

Weather in May

May brings the first hints of summer to Atlantic City with warmer temperatures and extensive daylight hours. The atmosphere across the city embraces a vibrant and sunny character. As the sea temperature climbs to 55°F (12.8°C), beach activities start buzzing, attracting both residents and tourists. A generous 14.4 hours of daylight coupled with an increased UV index of 6 provides ample opportunities for outdoor adventures. As the month progresses, the rising mercury promises the imminent arrival of summer.

Temperature

The arrival of May in Atlantic City brings a temperature shift, with the average high-temperature escalating from a moderate 55.9°F (13.3°C) in April to an enjoyable 64.9°F (18.3°C). Nights in May cool down in Atlantic City, indicating a minor disparity from daytime highs with an average low-temperature of 56.8°F (13.8°C).

Humidity

May is the most humid month in Atlantic City, with an average relative humidity of 81%.

Rainfall

In May, in Atlantic City, the rain falls for 12.3 days. Throughout May, 1.1" (28mm) of precipitation is accumulated. Throughout the year, in Atlantic City, there are 121.6 rainfall days, and 12.09" (307mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Atlantic City.

Ocean temperature

In May, the average ocean temperature is 55°F (12.8°C).
Note: Swimming in 55°F (12.8°C) at temperatures under 50°F (10°C) requires thermal swimsuits; otherwise, one can face cold shock and breathing difficulty. Even brief immersion at 55.4°F (13°C) feels frosty.

Daylight

In Atlantic City, the average length of the day in May is 14h and 21min.
On the first day of the month, sunrise is at 5:57 am and sunset at 7:51 pm. On the last day of May, sunrise is at 5:32 am and sunset at 8:18 pm EDT.

Sunshine

The average sunshine in May in Atlantic City is 9h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 6 during May leads to these advisories:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.

Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in May, in Atlantic City, is 64.9°F (18.3°C), while the average low-temperature is 56.8°F (13.8°C).

With an average relative humidity of 81%, May is the most humid month.

The average relative humidity in May is 81%.

In Atlantic City, in May, it is raining for 12.3 days, with typically 1.1" (28mm) of accumulated precipitation.

April through November are months without snowfall in Atlantic City, New Jersey.

In Atlantic City, in May, the average water temperature is 55°F (12.8°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

In May, the average day length in Atlantic City is 14h and 21min.

On the first day of May in Atlantic City, sunrise is at 5:57 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:18 pm EDT.

In Atlantic City, New Jersey, the average sunshine duration in May is 9h.

The months with the highest UV index in Atlantic City, New Jersey, are May through August, with an average maximum UV index of 6.

In Atlantic City, New Jersey, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

55.9°F

64.9°F

73.6°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

13.1mph

11.1mph

10.3mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

11.5

12.3

11.1

Average snowfall

Average snowfall days

0.1

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

16.3

15.9

16.3

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Atlantic City, NJ

Average high temperature in May: 64.9°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (39.9°F).

Average low temperature in May: 56.8°F

The month with the highest average low temperature is August (72°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).

Average pressure in May
Atlantic City, NJ

Average pressure in May: 30.02"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Atlantic City, NJ

Average wind speed in May: 10.4mph

The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).

Average humidity in May
Atlantic City, NJ

Average humidity in May: 81%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is November (73%).

Average rainfall in May
Atlantic City, NJ

Average rainfall in May: 1.1"

The wettest month (with the highest rainfall) is October (1.26").
The driest month (with the least rainfall) is January (0.71").

Average rainfall days in May
Atlantic City, NJ

Average rainfall days in May: 12.3 days

The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is November (6.9 days).

Average snowfall in May
Atlantic City, NJ

Average snowfall in May: 0"

The month with the highest snowfall is January (0.63").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Atlantic City, NJ

Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in May
Atlantic City, NJ

Average sea temperature in May: 55°F

The best month for swimming (with the highest average sea temperature) is August (76.6°F).
The coldest month (with the lowest average sea temperature) is February (40.5°F).

Average daylight in May /
Average sunshine in May
Atlantic City, NJ

Average daylight in May: 14h and 24min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

Average sunshine in May: 9h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in May
Atlantic City, NJ

Average sunshine days in May: 15.9 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (14.6 days).

Average UV index in May
Atlantic City, NJ

Average UV index in May: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in May
Atlantic City, NJ

Average cloud cover in May: 41

The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 26).

Average visibility in May
Atlantic City, 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).