Overview
- Bison Futé’s latest forecast, published and amplified by national outlets on Friday 22 May, classed the day red for departures and orange for returns and warned it would be the busiest day of the Pentecost weekend.
- Traffic control maps and reports list precise autoroute stretches and hourly windows to avoid on Friday, including A13 Paris–Caen 14:00–22:00, A31 Nancy–Luxembourg 18:00–20:00, A36 Besançon–Germany 16:00–20:00 and long windows on the A7 toward the Mediterranean.
- Local patterns shift over the weekend with Saturday busy for departures in Auvergne‑Rhône‑Alpes and Île‑de‑France, Sunday largely green nationwide, and Monday 25 May showing return congestion risk in the Grand Ouest, the North and Île‑de‑France.
- Media and agencies are urging practical precautions for drivers facing heat and delays, including early departures or travel outside peak hours, regular breaks, ample water for passengers and pets, and modest use of air conditioning to avoid fatigue.
- The forecast matters for holiday plans and emergency services because stronger leisure flows tied to warm weather can lengthen journey times, raise roadside breakdowns and concentrate demand on ferry, cross‑border and mountain routes.