The temperatures in Newcastle in August are usually low and can range between 11°C and 19°C.
You can expect about 3 to 8 days of rain in Newcastle during the month of August. 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 Newcastle in August 2025.
If you’re planning to visit Newcastle in the near future, we highly recommend that you review the 14 day weather forecast for Newcastle before you arrive.
Temperatures
19° / 11°
Rainy Days
5
Snowy Days
0
Dry Days
26
Rainfall
57
mm
Sun Hours
7.7
Hrs
