August could be a good time to visit Wilmington, as the weather is generally fine. The average high temperature is around +84°F, and there are typically 4 sunny days in August. However, expect about 24 rainy days, and total monthly rainfall of approximately 202 mm. The weather is changeable so pack for every eventuality. Search flightsin one click on Avionero.
Good to know:
August is usually the wettest month of the year in Wilmington;
Average weather
☀️
+84°F
Avg. max. temperature
+57°F
Min.
+97°F
Max.
202 mm
Total precipitation
80%
Avg. humidity
2 m/s
Avg. wind
4 ☀️
Sunny Days
3 ⛅️
Cloudy
24 🌦
Rainy
Our opinion: Wilmington has OK weather in August.
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Average temperature in Wilmington in August
Here are the expected maximum, average and minimum temperatures in Wilmington for August based on the historical data.
Last Year
Historical Data
The expected average maximum temperature in August is +88°F with a maximum of +95°F and a minimum of +64°F.
The average maximum temperature goes down 24% by the end of the month, compared with the beginning of the month, from +86°F to +79°F.
Is Wilmington warm or cold in August?
Wilmington is typically warm in August.
Maximum temperatures go down compared to the previous month from +86°F to +84°F. The minimum temperature also goes up from +75°F to +75°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
August is one of the warmest months in Wilmington, here is the comparison with other months:
Climate in Wilmington in August
Wilmington weather looks like this, on average, in August and the surrounding months.
July
August
September
Avg. temperature
+86°F
+84°F
+81°F
Min. temperature
+61°F
+57°F
+50°F
Max. temperature
+100°F
+97°F
+97°F
Rainfall
184 mm
202 mm
181 mm
Wind
2 m/s
2 m/s
2 m/s
Humidity
78%
80%
79%
Air pressure
1016 HPa
1015 HPa
1016 HPa
Sunny days
3
4
7
Cloudy days
2
3
4
Rainy days
23
24
19
Snowy days
0
0
0
August weather is still as ok as in July.It’s getting colder in August. From +86°F in the day, the average maximum temperature lowers to +84°F.Prepare for more rain. Average rainfall goes from 184 mm to 202 mm.Humidity rises from 78% to 80%.The average wind speed doesn’t change much during August, staying around 2 m/s.The good news is there are likely to be more sunny days in August, from 3 to 4.
September brings much the same weather, it remains ok.
Wind speed in Wilmington in August based on historical data.
Last Year
Historical Data
The average wind speed is 2 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Wilmington is gradually increasing during August, going from 2 m/s to 7 m/s over the course of the month.
Rain
Amount of rainfall in mm during August in Wilmington based on historical data.
Last Year
Historical Data
Total precipitation in August is about 229 mm, with a 68% chance of rain on a typical day. The maximum amount of rainfall per day is around 72 mm, which is considered heavy rain.August is a pretty wet month with over 21 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
August is one of the rainiest months in Wilmington, here is a comparison with other months, total mm:
Wilmington wettest month is August, where a typical day has a 77% chance of precipitation and 202 mm of rainfall per day. April, on the other hand, is the driest month with a mere 43% chance of precipitation and 88 mm of rainfall per day.
How was the weather last August in Wilmington?
This is the weather in Wilmington in August 2025:
1 August
☀️
+87°F
2 August
☀️
+84°F
3 August
☀️
+83°F
4 August
🌫️
+80°F
5 August
☁️
+85°F
6 August
☀️
+87°F
7 August
☀️
+93°F
8 August
☀️
+92°F
9 August
☀️
+89°F
10 August
☀️
+88°F
11 August
☀️
+89°F
12 August
☀️
+92°F
13 August
☀️
+94°F
14 August
☀️
+93°F
15 August
☀️
+94°F
16 August
☀️
+90°F
17 August
🌧️
+88°F
18 August
☀️
+91°F
19 August
☀️
+89°F
20 August
☀️
+89°F
21 August
☀️
+92°F
22 August
☀️
+92°F
23 August
☀️
+85°F
24 August
☀️
+86°F
25 August
☀️
+87°F
26 August
☀️
+91°F
27 August
☀️
+92°F
28 August
🌧️
+88°F
29 August
☀️
+90°F
30 August
☀️
+82°F
31 August
🌫️
+79°F
In August 2025 Wilmington had 26 sunny days, 1 cloudy days, and 2 rainy days. The average maximum temperature was +88°F, with an absolute maximum of +95°F and a minimum of +79°F. The average humidity was 81%, with a maximum of 98% and a minimum of 49%. The average wind speed was 2 m/s, with a maximum of 11 m/s and a minimum of 0 m/s.
Are you planning a trip in August?
Climate Change Over the Years
This is how Wilmington climate has changed over the last 43 years.
The climate in Wilmington in August has not changed that much over the last 43 years.
The average temperature was the lowest in 1996 (+69°F) and the highest in 2019 (+75°F). The driest year was 2007 with only 840 mm of rainfall, and the wettest year was 2020 with 2153 mm.
FAQ
Frequently asked questions about the weather in Wilmington in August:
Is August a good time to visit Wilmington?
It’s always a good time to visit Wilmington, but the weather is changeable in August, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Wilmington in August?
August is warm in Wilmington. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.
Is Wilmington rainy in August?
Wilmington is often rainy in August. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Wilmington in August?
Usually, it’s not very sunny in Wilmington in August, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
For this page, we’ve looked at the typical weather in Wilmington, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
