May weather forecast and climate
Wilmington, NC

What is the temperature in May in Wilmington?

The average high-temperature, in May, is 80.8°F (27.1°C), while the average low-temperature is 60.1°F (15.6°C).

How much does it rain in Wilmington in May?

In Wilmington, North Carolina, during May, the rain falls for 10.9 days and regularly aggregates up to 4.5" (114mm) of precipitation.

What is the sea water temperature in May in Wilmington?

In May, in Wilmington, North Carolina, the average sea temperature is 70.7°F (21.5°C). Swimming in 70.7°F (21.5°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).
Average temperature in May - Wilmington, NC
  • Average high temperature in May: 80.7°F

The warmest month (with the highest average high temperature) is July (89.7°F).
The month with the lowest average high temperature is January (56.4°F).

  • Average low temperature in May: 60°F

The month with the highest average low temperature is July (72.6°F).
The coldest month (with the lowest average low temperature) is January (35.6°F).

Average humidity in May - Wilmington, NC
  • Average humidity in May: 73.7%

The month with the highest relative humidity is August (80.7%).
The month with the lowest relative humidity is April (66.8%).

Average rainfall in May - Wilmington, NC
  • Average rainfall in May: 4.5"

The wettest month (with the highest rainfall) is September (7.8").
The driest month (with the lowest rainfall) is April (2.8").

Average rainfall days in May - Wilmington, NC
  • Average rainfall days in May: 10.9 days

The month with the highest number of rainy days is July (16.4 days).
The month with the lowest number of rainy days is April (8.5 days).

Average snowfall in May - Wilmington, NC
  • Average snowfall in May: 0"

The month with the highest snowfall is December (0.8").
Months with the lowest snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in May - Wilmington, NC
  • Average snowfall days in May: 0 days

Months with the highest number of snowfall days are January, February and December (0.3 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September, October and November (0 days).

Average sea temperature in May - Wilmington, NC
  • Average sea temperature in May: 70.7°F

The best month for swimming (with the highest average sea temperature) is August (82.8°F).
The coldest month (with the lowest average sea temperature) is February (57.5°F).

Average daylight in May / Average sunshine in May - Wilmington, NC
  • Average daylight in May: 14h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).

  • Average sunshine in May: 9.2h

The month with most sunshine is June (Average sunshine: 9.3h).
The month with least sunshine is December (Average sunshine: 5.8h).

Average UV index in May - Wilmington, NC
  • Average UV index in May: 9

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 3).

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