Normally, the average daily temperature in Loch Rannoch through the whole of May is 8 with a high of 14 degrees and a low of 6. The table below has further info:
| Month | Degrees Celsius |
|---|---|
| Temperature | 8 |
| High Temperature | 14 |
| Low Temperature | 6 |
Useful Links: Loch Rannoch Weather: Average Weather & Yearly Climate