- Check out the top activities & tours in the USA
- Discover places to see, things to do & popular attractions
- Browse the best activities & tours or filter by date
Delaware climate guide
Below are average maximum temperatures at popular destinations in Delaware for next month - September. Select a destination to see the climate guide for all months of the year.
The climate guide for Delaware shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
Discover more about the USA
Get FREE travel offers
Sign up to receive the latest deals and exclusive discounts on holidays, flights, hotels and more, plus inspiration on where to go when
We promise not to share your details
Popular travel offers
*affiliate links: find out how we are funded and why this helps us remain free to use.