UTMB Mont Blanc 2027 · TDS · 148 km: felt heat and shade along the course
UTMB Mont Blanc 2027 · TDS · 148 km: 148 km and 9,300 m of climbing, on 24 August 2027.
For this race, SHADE (shaderoutes.com) computes the real shade along the official course (trees, terrain, buildings) and the felt temperature, in degrees, at every checkpoint, at the time you will be there at your own pace. While the race is more than two weeks away, the weather used is the ten-year normal for the same date (ERA5 reanalysis): it is not a forecast. Free, no account.
Checkpoints
| Checkpoint | km | Altitude (m) | Difference due to altitude, vs. the start |
|---|---|---|---|
| Départ | 0 | 1,222 | 0 °C |
| Arrivée | 148 | 1,043 | +1 °C |
Altitude alone: about 6.5 °C cooler per 1,000 m. Shade, sun, wind and humidity are added by SHADE.
Official race website · Version française · SHADE: loops in the shade · All races · Method · Run in the shade, city by city