Stage 12 · 3 September 2026

Vera → Calar Alto

166.6 kmMountain — summit finish

Observed conditions from the ERA5 reanalysis archive.

Observed heat snapshot

+5.4°Cvs the 1974-2023 average at this location (ERA5): 20.7°C

32.5°Cpeak in the race window

High-risk · 29°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

19.9°C'74–'83

20.9°C'84–'93

21.1°C'94–'03

21.1°C'04–'13

20.5°C'14–'23

-2°C50-yr avg+2°C

A day this hot (≥26.1°C, ERA5 at this location) occurred 0× in 1974-1983 vs. 13× in 2014-2023.

WBGT is an estimate — see methodology. Data as of 2026-09-14T01:03:49.318Z.