Delaware (Wilmington)
August
Weather in Delaware for August 2026
Your guide to Delaware weather in August - trends and predictions
Coastal Flood Advisory - See hour by hour.
So far, August 2026 in Delaware is slightly warmer than the historical average by 1.7 °F.
The forecast for the next days in Delaware predicts temperatures to be around 29 °F, close to the historical average.
In general, the average temperature in Delaware at the beginning of August is 28.9 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 24.9 °F by the end of August.
Delaware experiences moderate rainfall in August, with an average of 8 rainy days and a total precipitation of 466.3 mm.
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Temperatures
Rain 🌧️
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23
Dry days
8
Rainy days
0
Snow days
27°/18°
Temperatures
14 km/h
Avg max wind
71 %
Avg humidity
Delaware Weather August
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What’s the Weather Like in Delaware This August?
Discover the average temperatures and weather trends across Delaware’s cities this August.
Temperatures trend during August in Delaware
See the weather trend as well as the moving average line
August weather in Delaware day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Moderate or heavy rain shower | 27° /17° | 181.9 mm | 7 | |
| Aug. 2 |  Overcast | 28° /19° | 3.9 mm | 10 | |
| Aug. 3 |  Fog | 30° /19° | 17.1 mm | 9 | |
| Aug. 4 | Fog | 31° /17° | 0 mm | 12 | |
| Aug. 5 | Overcast | 29° /20° | 8 mm | 8 | |
| Aug. 6 | Overcast | 29° /21° | 1.5 mm | 7 | |
| Aug. 7 | Overcast | 28° /21° | 0.9 mm | 8 | |
| Aug. 8 |  Partly cloudy | 29° /19° | 3.2 mm | 11 | |
| Aug. 9 | Partly cloudy | 32° /18° | 0 mm | 11 | |
| Aug. 10 | Mist | 31° /18° | 2.8 mm | 11 | |
| Aug. 11 | Mist | 30° /18° | 0.6 mm | 11 | |
| Aug. 12 |  Sunny | 33° /22° | 0 mm | 7.5 | |
| Aug. 13 | Sunny | 30° /20° | 0.9 mm | 6.8 | |
| Aug. 14 | Sunny | 29° /20° | 0 mm | 6.3 | |
| Aug. 15 | Sunny | 29° /19° | 0 mm | 7.9 | |
| Aug. 16 |  Patchy rain possible | 32° /20° | 3.4 mm | 8 | |
| Aug. 17 | Sunny | 29° /22° | 0.1 mm | 7 | |
| Aug. 18 | Sunny | 28° /18° | 0 mm | 7 | |
| Aug. 19 | Sunny | 31° /20° | 3.1 mm | 8 | |
| Aug. 20 | Sunny | 35° /21° | 1.4 mm | 8 | |
| Aug. 21 | Sunny | 27° /20° | 0 mm | 7 | |
| Aug. 22 | Sunny | 26° /16° | 0 mm | 7 | |
| Aug. 23 | Partly cloudy | 27° /21° | 2.6 mm | 7 | |
| Aug. 24 | Sunny | 28° /19° | 0.1 mm | 7 | |
| Aug. 25 | Light rain shower | 26° /20° | 5.5 mm | 6 | |
| Aug. 26 |  Cloudy | 26° /15° | 0 mm | 9 | |
| Aug. 27 | Sunny | 25° /14° | 0 mm | 9 | |
| Aug. 28 | Partly cloudy | 25° /14° | 0 mm | 9 | |
| Aug. 29 | Mist | 24° /15° | 0 mm | 9 | |
| Aug. 30 | Sunny | 24° /14° | 0 mm | 9 | |
| Aug. 31 | Overcast | 24° /14° | 0 mm | 8 | |
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Important Notice
Our weather forecast for Delaware in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Delaware forecast closer to your planned date for the most up-to-date weather information.
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Delaware in August - FAQ
What are the expected maximum and minimum temperatures in Delaware during August?
During August, expect a variety of temperatures with highs around 27° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in Delaware during August?
Significant rainfall exceeding 466.3 mm is expected in Delaware during August, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Delaware during August?
The average wind speed in Delaware during August is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Delaware
Explore the daily rainfall trends and prepare for Delawares August weather 💧
Typically, Delaware has 8 rainy days in August with a total of 466.3 mm of rainfall.
UV exposure in Delaware during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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