The temperatures in Delaware in September are comfortable with low of 17°C and and high up to 25°C.
You can expect about 3 to 8 days of rain in Delaware during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Delaware in September 2024.
If you’re planning to visit Delaware in the near future, we highly recommend that you review the 14 day weather forecast for Delaware before you arrive.
Temperatures
25° / 17°
Rainy Days
6
Snowy Days
0
Dry Days
24
Rainfall
139
mm
Sun Hours
10.2
Hrs
