You should expect the average temperature in Newcastle Upon Tyne for the month of September is 4. Average high is typically 10 with low daily temperautes being 3.3. The table below has further info:
| Month | Degrees Celsius |
|---|---|
| Temperature | 4 |
| High Temperature | 10 |
| Low Temperature | 3.3 |
| Sunshine Per Day | 9 |
Useful Links: Newcastle Upon Tyne Weather: Average Weather & Yearly Climate