Mont Blanc Tunnel Night Closures – Schedule Through August 2026
From today, night‑time traffic restrictions are in effect in the Mont Blanc Tunnel. The tunnel operator has published a forecast schedule of planned closures and alternating one‑way traffic from January through August 2026. These dates reflect maintenance and technical work and may be subject to change.
Full Night Closures of the Mont Blanc Tunnel
▪️12–13 January 2026 – 22:00 to 08:00 – Full closure
▪️9–10 February 2026 – 22:00 to 06:00 – Full closure
▪️19–20 February 2026 – 23:30 to 04:00 – Full closure (shorter duration)
▪️9–10 March 2026 – 19:00 to 06:00 – Full closure (earlier start)
▪️13–14 April 2026 – 22:00 to 06:00 – Series of night closures
▪️14–15 April 2026 – 22:00 to 06:00 – Series of night closures
▪️15–16 April 2026 – 22:00 to 06:00 – Series of night closures
▪️16–17 April 2026 – 22:00 to 06:00 – Series of night closures
▪️20–21 April 2026 – 22:00 to 06:00 – Series of night closures
▪️21–22 April 2026 – 22:00 to 06:00 – Series of night closures
▪️22–23 April 2026 – 22:00 to 06:00 – Series of night closures
▪️23–24 April 2026 – 22:00 to 06:00 – Series of night closures
▪️18–19 May 2026 – 22:00 to 06:00 – Series of night closures
▪️19–20 May 2026 – 22:00 to 06:00 – Series of night closures
▪️20–21 May 2026 – 22:00 to 06:00 – Series of night closures
▪️21–22 May 2026 – 22:00 to 06:00 – Series of night closures
▪️8–9 June 2026 – 19:00 to 06:00 – Full closure (earlier start)
▪️9–10 June 2026 – 22:00 to 06:00 – Full closure
▪️10–11 June 2026 – 22:00 to 06:00 – Full closure
▪️11–12 June 2026 – 22:00 to 06:00 – Full closure
▪️25–26 June 2026 – 22:00 to 06:00 – Full closure
▪️29–30 June 2026 – 22:00 to 06:00 – Full closure
▪️30 June–1 July 2026 – 22:00 to 06:00 – Full closure
▪️1–2 July 2026 – 22:00 to 06:00 – Full closure
▪️2–3 July 2026 – 22:00 to 06:00 – Full closure
Alternating One‑Way Traffic
On selected nights when full closure is not scheduled, the Mont Blanc Tunnel will operate under alternating one‑way traffic (one direction at a time):
▪️13–14 January 2026 – 22:30 to 06:00 – Alternating traffic
▪️14–15 January 2026 – 22:30 to 06:00 – Alternating traffic
▪️15–16 January 2026 – 22:30 to 06:00 – Alternating traffic
▪️10–11 February 2026 – 22:30 to 06:00 – Alternating traffic
▪️11–12 February 2026 – 22:30 to 06:00 – Alternating traffic
▪️12–13 February 2026 – 22:30 to 06:00 – Alternating traffic
▪️10–11 March 2026 – 22:30 to 06:00 – Alternating traffic
▪️11–12 March 2026 – 22:30 to 06:00 – Alternating traffic
▪️12–13 March 2026 – 22:30 to 06:00 – Alternating traffic
▪️24–25 June 2026 – 22:30 to 06:00 – Alternating traffic
These closures and alternating traffic periods arise from planned technical maintenance and safety work undertaken by the tunnel operator.
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