Click on a day for an hourly weather forecast
The temperatures in Newcastle in August are usually low and can range between 11°C and 18°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.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 27° / 20° | 5 | 27 | 0 | 117 mm | Perfect | Newcastle in January |
| February | 26° / 20° | 5 | 24 | 0 | 141 mm | Perfect | Newcastle in February |
| March | 25° / 19° | 6 | 25 | 0 | 163 mm | Perfect | Newcastle in March |
| April | 22° / 17° | 4 | 26 | 0 | 130 mm | Good | Newcastle in April |
| May | 19° / 14° | 4 | 27 | 0 | 93 mm | Good | Newcastle in May |
| June | 17° / 12° | 6 | 24 | 0 | 149 mm | Good | Newcastle in June |
| July | 16° / 11° | 4 | 27 | 0 | 73 mm | Good | Newcastle in July |
| August | 18° / 11° | 3 | 28 | 0 | 79 mm | Good | Newcastle in August |
| September | 20° / 13° | 3 | 27 | 0 | 81 mm | Good | Newcastle in September |
| October | 22° / 15° | 5 | 26 | 0 | 98 mm | Good | Newcastle in October |
| November | 24° / 17° | 6 | 24 | 0 | 139 mm | Perfect | Newcastle in November |
| December | 25° / 18° | 5 | 26 | 0 | 107 mm | Perfect | Newcastle in December |