Stage 16 · 21 July 2026

Évian-les-Bains → Thonon-les-Bains

26.1 kmIndividual time trial

Observed conditions from the ERA5 reanalysis archive.

Observed heat snapshot

+1.6°Cvs the 1974-2023 average at this location (ERA5): 23.2°C

25.1°Cpeak in the race window

Moderate low-risk · 21°C WBGT (est.)

Schematic — real elevation, approximate route between known points, not survey-accurate. Fill colored by temperature.

+10°C26°C+42°C

Decade trend — deviation from the 50-year mean at this location

21.3°C'74–'83

22.6°C'84–'93

22.9°C'94–'03

23.5°C'04–'13

25.9°C'14–'23

-2°C50-yr avg+2°C

A day this hot (≥24.8°C, ERA5 at this location) occurred 26× in 1974-1983 vs. 92× in 2014-2023.

WBGT is an estimate — see methodology. Data as of 2026-07-22T06:18:23.270Z.