Normally the weather in Heysham in September is 12. High average temperature is 17 with lows around 11. We have provided a clearer breakdown here:
| Month | Degrees Celsius |
|---|---|
| Temperature | 12 |
| High Temperature | 17 |
| Low Temperature | 11 |
| Sunshine Per Day | 6 |
Useful Links: Heysham Weather: Average Weather & Yearly Climate