Best Time to Hike West Highland Way (Inverarnan to Tyndrum)
Month-by-month temperatures and rainfall for West Highland Way (Inverarnan to Tyndrum), United Kingdom, based on 2-year climate normals.
Month-by-month weather on West Highland Way (Inverarnan to Tyndrum)
| Month | Avg high | Avg low | Rainfall | Rainy days |
|---|---|---|---|---|
| January | 36°F2°C | 29°F-2°C | 151 mm | 15 |
| February | 38°F4°C | 32°F0°C | 212 mm | 19 |
| March | 43°F6°C | 34°F1°C | 138 mm | 19 |
| April | 49°F9°C | 35°F2°C | 133 mm | 16 |
| May | 58°F14°C | 43°F6°C | 117 mm | 16 |
| June | 55°F13°C | 44°F7°C | 161 mm | 23 |
| July | 59°F15°C | 47°F9°C | 138 mm | 23 |
| August | 58°F14°C | 48°F9°C | 233 mm | 23 |
| September | 54°F12°C | 42°F6°C | 112 mm | 17 |
| October | 49°F9°C | 41°F5°C | 212 mm | 20 |
| November | 42°F5°C | 34°F1°C | 169 mm | 17 |
| December | 40°F5°C | 33°F1°C | 300 mm | 23 |
Highlighted rows are the recommended hiking window. Climate normals via Open-Meteo (2-year average). Mountain weather varies — always check a live forecast before you set off.
The best months to hike West Highland Way (Inverarnan to Tyndrum) are May, July, September. Expect daytime highs around 57°F14°C and nights near 45°F7°C.
Pack flexible layers and a reliable rain shell — conditions can shift quickly in the mountains.
Full route guide, interactive map and free GPX download.
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