Wilmington
North Carolina, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Wilmington, NC

A creative creation on a large field in Wilmington, North Carolina, near the skyscape of the city afar, and intense white clouds in the blue sky above
A creative creation on a large field in Wilmington, North Carolina, near the skyscape of the city afar, and intense white clouds in the blue sky above
Mayo, the last month of the spring, in Wilmington, is another warm month, with temperature in the range of an average high of 80.8°F (27.1°C) and an average low of 60.1°F (15.6°C).

Temperature

In Mayo, the average high-temperature slightly increases, from a warm 74.1°F (23.4°C) in Abril, to a still moderately hot 80.8°F (27.1°C). In Mayo, the average low-temperature is 60.1°F (15.6°C).

Heat index

In Mayo, the average heat index is evaluated at 84.9°F (29.4°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like activity, pregnancy, clothing, and differences in body mass, height, and shape affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity is 73.7%.

Rainfall

In Wilmington, during Mayo, the rain falls for 10.9 days and regularly aggregates up to 4.49" (114mm) of precipitation. In Wilmington, during the entire year, the rain falls for 134.6 days and collects up to 57.6" (1463.1mm) of precipitation.

Snowfall

In Wilmington, North Carolina, snow does not fall in Abril through Noviembre.

Ocean temperature

In Wilmington, the average seawater temperature is 70.7°F (21.5°C).
Note: For swimming, a surface water temperature of 70.7°F (21.5°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

Daylight

In Wilmington, the average length of the day in Mayo is 14h.

Sunshine

The average sunshine in Mayo is 9.2h.

UV index

In Wilmington, the average daily maximum UV index in Mayo is 9. A UV Index value of 8 to 10 symbolizes a very high threat to health from unsafe exposure to the UV radiation for average individuals.
Note: In Mayo, the average maximum UV index of 9 translate into the following recommendations:
Take extra precautions. Protection against sun damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Prolonged stay under the direct sun should be avoided as much as possible, especially if a person burns easily. Sunscreen with a minimum 30 sun protection factor should always be used. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in Mayo in Wilmington?

In Wilmington, North Carolina, in Mayo, the average high-temperature is 80.8°F (27.1°C), and the average low-temperature is 60.1°F (15.6°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that takes the relative humidity and factores it into the air temperature reading, in Mayo is calculated to 84.9°F (29.4°C).

What is the average humidity in Mayo in Wilmington?

The average relative humidity in Mayo in Wilmington is 73.7%.

How much does it rain in Wilmington in Mayo?

In Mayo, in Wilmington, the rain falls for 10.9 days. Throughout Mayo, 4.49" (114mm) of precipitation is accumulated.

When it does not snow in Wilmington?

Abril through Noviembre are months without snowfall in Wilmington, North Carolina.

How cold is the water in Mayo in Wilmington?

In Wilmington, North Carolina, in Mayo, the average water 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).

What is the average length of the day in Mayo in Wilmington?

In Mayo, the average length of the day in Wilmington is 14h.

How long on average sun shines in Mayo in Wilmington?

In Mayo, the average sunshine in Wilmington, North Carolina, is 9.2h.

What is the UV index intensity in Mayo in Wilmington?

In Wilmington, the average daily maximum UV index in Mayo is 9. A UV Index reading of 8 to 10 represents a very high health threat from the exposure to the Sun's UV rays.
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).