Stage 5 · 5 August 2026

Mâcon → Belleville-en-Beaujolais

140 kmHilly

Observed conditions from the ERA5 reanalysis archive.

Observed heat snapshot

+4.7°Cvs the 1974-2023 average at this location (ERA5): 26.3°C

31.0°Cpeak in the race window

Moderate high-risk · 27°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

25.1°C'74–'83

26.0°C'84–'93

27.3°C'94–'03

25.6°C'04–'13

27.7°C'14–'23

-2°C50-yr avg+2°C

A day this hot (≥31.0°C, ERA5 at this location) occurred 12× in 1974-1983 vs. 39× in 2014-2023.

WBGT is an estimate — see methodology. Data as of 2026-08-13T12:21:30.319Z.