Frequent average weather in Loch Lomond throughout the time of September is 12. You can expect highs around 16 and low around 11. We have put some more information below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 12 |
| High Temperature | 16 |
| Low Temperature | 11 |
| Sunshine Per Day | 5 |
Useful Links: Loch Lomond Weather: Average Weather & Yearly Climate