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Best Time for Loch Lomond & the Trossachs
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Sweet spot: April, May, June. Computed from NASA POWER climate normals across the route's overnight towns, balancing temperature, rainfall and daylight.
💡 Good to know
- Bluebell woods around the lochs in May, long light for the Duke's Pass viewpoints, and autumn colour arriving early at the Queen's View.
- Glasgow's doorstep park is busiest now — midges peak too; carry repellent for evening loch walks and book Callander beds ahead.
| Month | Low | High | Rain | Daylight | |
|---|---|---|---|---|---|
| January | 0.5°C | 4.3°C | 121 mm | 7.3 h | ❄ |
| February | 0.2°C | 4.5°C | 91 mm | 9.2 h | ❄ |
| March | 0.9°C | 6.5°C | 86 mm | 11.4 h | ❄ |
| April | 2.8°C | 9.6°C | 71 mm | 13.9 h | |
| May | 5.3°C | 12.9°C | 87 mm | 16.1 h | |
| June | 8.4°C | 15.6°C | 103 mm | 17.4 h | |
| July | 10.1°C | 17.2°C | 117 mm | 16.8 h | |
| August | 9.7°C | 16.6°C | 132 mm | 14.9 h | |
| September | 7.9°C | 14.3°C | 96 mm | 12.4 h | |
| October | 5.4°C | 10.7°C | 133 mm | 10.0 h | |
| November | 2.9°C | 7.1°C | 122 mm | 7.8 h | |
| December | 1.0°C | 4.8°C | 115 mm | 6.6 h | ❄ |