The temperatures in New Castle in July are comfortable with low of 16°C and and high up to 28°C.
You can expect rain for roughly half of the month of July in New Castle. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in New Castle in July 2025.
If you’re planning to visit New Castle in the near future, we highly recommend that you review the 14 day weather forecast for New Castle before you arrive.
Temperatures
28° / 16°
Rainy Days
10
Snowy Days
0
Dry Days
21
Rainfall
183
mm
Sun Hours
7.3
Hrs
