Usually average temperatures are Alnwick for the duration of September is 10 with a general average high of 16 and low average expected to be 7 celsius. The table below includes more detail:
| Month | Degrees Celsius |
|---|---|
| Temperature | 10 |
| High Temperature | 16 |
| Low Temperature | 7 |
| Sunshine Per Day | 6 |
Useful Links: Alnwick Weather: Average Weather & Yearly Climate