The highest day temperature in July 2025 was 103°F. The lowest night temperature was 65°F. The average values for day and night temperatures during July were 91.8°F и 74.6°F respectivly.

The average sea surface temperature in July 2025 for Wilmington was 84.1°F. The maximum and minimum values were 81.2°F and 86.8°F respectively.

Most of the days in July are cloudy but you can also expect sunny or gloomy days.

Precipitation total in July for Wilmington is 1.7 in. It makes july the most rainy month of the year.

The average wind speed in July is 5.7 mph. It makes July the most windless month of the year for Wilmington.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Wilmington in July is 8.4 hours.