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Wilmington in August: Weather, Average temperature and Climate
Take a look at past year’s weather for Wilmington in August and see if it is worth visiting.
Weather in Wilmington in August 2026
OK Weather
🌧️
RainyWilmington in August usually sees fair weather conditions, with an average daily high temperature of +29°C and roughly 4 sunny days. However, you should prepare for about 24 rainy days with an average precipitation of 202 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.
Good to know:
- August is usually the wettest month of the year in Wilmington;
Average weather
☀️
+29°C
Avg. max. temperature
+14°C
Min.
+36°C
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.
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 temperature in August is +31°C on average, with a range between a maximum of +35°C during the day and a minimum of +18°C at night.
The average maximum temperature goes down 24% by the end of the month, compared with the beginning of the month, from +30°C to +26°C.
Is Wilmington warm or cold in August?
Wilmington is typically warm in August.
Maximum temperatures go down compared to the previous month from +30°C to +29°C. The minimum temperature also goes up from +24°C to +24°C.
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 | +30°C | +29°C | +27°C | |||
| Min. temperature | +16°C | +14°C | +10°C | |||
| Max. temperature | +38°C | +36°C | +36°C | |||
| 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 | ||
| Our opinion | OK | OK | OK | |||
August weather is still as ok as in July. It’s getting colder in August. From +30°C in the day, the average maximum temperature lowers to +29°C. 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
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
A chance of rain on a typical day in August stands at 68%, leading to total precipitation of around 229 mm. 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 galoshes.
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:
mån
tis
ons
tor
fre
lör
sön
1
☀️
+30°C
2
☀️
+29°C
3
☀️
+29°C
4
🌫️
+26°C
5
☁️
+29°C
6
☀️
+31°C
7
☀️
+34°C
8
☀️
+33°C
9
☀️
+32°C
10
☀️
+31°C
11
☀️
+31°C
12
☀️
+33°C
13
☀️
+35°C
14
☀️
+34°C
15
☀️
+34°C
16
☀️
+32°C
17
🌧️
+31°C
18
☀️
+33°C
19
☀️
+31°C
20
☀️
+32°C
21
☀️
+33°C
22
☀️
+33°C
23
☀️
+30°C
24
☀️
+30°C
25
☀️
+31°C
26
☀️
+33°C
27
☀️
+33°C
28
🌧️
+31°C
29
☀️
+32°C
30
☀️
+28°C
31
🌫️
+26°C
In August 2025 Wilmington had 26 sunny days, 1 cloudy days, and 2 rainy days. The average maximum temperature was +31°C, with an absolute maximum of +35°C and a minimum of +26°C. 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 Years
This is how Wilmington climate have been changing during last 43 years period.
The climate in Wilmington in August has not changed much over the last 43 years.
The average temperature was the lowest in 1996 (+20°C) and the highest in 2019 (+24°C). 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.
Other cities in USA
Check out the weather for other cities in USA.
Monthly weather in Wilmington
Source of the data
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.