May weather forecastCape May, NJ
May
Weather in May
In May, the weather in Cape May experiences a noticeable climb in average temperatures. The highest sea temperature for the year is recorded, advancing from 48°F (8.9°C) in April to 55°F (12.8°C). With the warmth, daylight hours also extend, reaching one of the highest values for the year. However, this month reveals a surge in humidity, often making it feel warmer than actual temperatures report. Moving into June, the arrival of Summer is well pronounced.Temperature
Cape May's transition into May brings a rise in the average high-temperature, moving from a cool 55°F (12.8°C) in April to an enjoyable 64°F (17.8°C). Throughout the nights in May, Cape May notes an average low of 57.7°F (14.3°C), a small dip from the daytime peak.Humidity
May is the most humid month, with an average relative humidity of 82%.Rainfall
In Cape May, in May, during 16.6 rainfall days, 3.39" (86mm) of precipitation is typically accumulated. Throughout the year, there are 158 rainfall days, and 35.47" (901mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall.Ocean temperature
In Cape May, the average seawater temperature in May is 55.4°F (13°C).Note: Dipping into 55.4°F (13°C) below 50°F (10°C) needs protective wear, or you'd face cold shock and breathing issues swiftly. Meanwhile, a slight swim around 55.4°F (13°C) feels cold to the bone.
Daylight
The average length of the day in May in Cape May is 14h and 19min.On the first day of the month, sunrise is at 6:00 am and sunset at 7:52 pm. On the last day of May, in Cape May, sunrise is at 5:36 am and sunset at 8:18 pm EDT.
Sunshine
The average sunshine in May is 9h.UV index
In Cape May, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In May, the average maximum UV index of 5 translates into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Cape May, NJ
- Average high temperature in May: 64°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in May: 57.7°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).
Average pressure in May
Cape May, NJ
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Cape May, NJ
- Average wind speed in May: 10.9mph
The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest month (with the lowest average wind speed) is July (9.2mph).
Average humidity in May
Cape May, NJ
- Average humidity in May: 82%
The month with the highest relative humidity is May (82%).
The month with the lowest relative humidity is November (73%).
Average rainfall in May
Cape May, NJ
- Average rainfall in May: 3.39"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.13").
Average rainfall days in May
Cape May, NJ
- Average rainfall days in May: 16.6 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in May
Cape May, NJ
- Average snowfall in May: 0"
The month with the highest snowfall is December (1.06").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Cape May, NJ
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in May
Cape May, NJ
- Average sea temperature in May: 55°F
The best month for swimming (with the highest average sea temperature) is August (75°F).
The coldest months (with the lowest average sea temperature) are February and March (43°F).
Average daylight in May /
Average sunshine in May
Cape May, NJ
- Average daylight in May: 14h and 18min
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 30min).
- 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: 4h and 54min).
Average sunshine days in May
Cape May, NJ
- Average sunshine days in May: 12.5 days
The month with the most sunshine days is November (18.9 days).
The months with the least sunshine days are May and June (12.5 days).
Average UV index in May
Cape May, 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 and December (UV index 2).
Average cloud cover in May
Cape May, NJ
- Average cloud cover in May: 41
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in May
Cape May, 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).
