Wilmington Weather in September

In Wilmington, September brings high daytime temperatures around 25°C (77°F), with nights cooling to 13°C (55°F). Expect quite a bit of rainfall this month.

Rainfall in Wilmington in September

Typically, you can expect about 10 days of rain this month, with 79 mm (3.1 in) on average. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Wilmington in September

The temperature in Wilmington in September is perfect. Daytime highs reach 25°C (77°F), with nights dropping to 13°C (55°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows of 13°C (55°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Wilmington in September

The city usually sees around 235 hours of sunlight, indicating many sunny days — a great month for sightseeing.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Wilmington's climate page.

Wilmington Temperature in September

Min Temperature 13°C (55°F)  

Max Temperature 25°C (77°F)  

Chance of Rain 33%  

Precipitation 79 mm (3.1 in)  

Rainy days 10 days  

Humidity 72% *  

Sunshine 235 hours *  

Percentage Sunshine 64% *  

* Data from: Dayton, the United States of America (46 KM, 29 Miles).

What to Wear in Wilmington in September

Warm but pleasant conditions in Wilmington in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Wet weather is likely, so pack waterproof gear for multiple rainy days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Wilmington in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

8/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Wilmington's climate page.

More climate data for Wilmington

Temperature Rainfall Sunshine Humidity

See the full Wilmington climate overview or explore weather in the United States of America.