French port strike 30 October: reroute before the window closes

The short version

Mark one date if you move cargo through European ports this autumn: 30 October. France's CGT trade union has called a nationwide dockers' strike across French ports. The action is local to France, but in a network where hubs share capacity, a French stoppage is never only a French problem.

French gateways were already under pressure before any stoppage. Le Havre was logging vessel waiting times around seven days, and Fos-sur-Mer around two. A national stoppage stacks a full halt on top of an existing queue — and the cargo that cannot wait simply diverts to the next available hub, which is usually Rotterdam, Antwerp or a UK gateway.

That is the trap for German, Dutch and British importers: the disruption does not need to touch your port directly to reach your shipment. It arrives as congestion, as rerouted volume, and as a tighter inland leg.

Why a French stoppage reaches your Rotterdam or Antwerp cargo

When a major gateway halts, three things happen in sequence, and none of them stay contained:

1. Diversions redistribute the squeeze. Cargo that would have called Le Havre or a Mediterranean French leg is pushed onto Benelux and German gateways. Those hubs do not have spare capacity sitting idle — they are already busy. A diversion moves the queue, it does not remove it.
2. The inland leg tightens fastest. Containers sitting during a stoppage still accrue detention and demurrage. The moment a port is disrupted, barge, rail and truck capacity around the alternative hubs fills up, and the free time on your box starts running out while nothing moves.
3. Mediterranean legs shift ETAs with little notice. Services calling French or adjacent hubs can re-time their calls, and that reshuffling ripples into the north-European rotations you actually rely on.

The practical read: if your routing touches a French port, or if your fallback routing assumes Rotterdam or Antwerp has slack, assume that slack is already spoken for around the 30 October window.

The numbers that show the exposure

Two figures tell the story before the strike even begins. Le Havre was already at roughly seven days of vessel waiting time, and Fos-sur-Mer around two. Those are pre-strike baselines — they describe a gateway that was already saturated.

On the receiving end, North European hubs were already tight: Rotterdam yards near 85–90% occupancy with barge and feeder delays of 12–24 hours, and Antwerp facing similar barge delays. When diverted French volume arrives on top of that, the combined queue is what your rerouted cargo joins.

Mediterranean legs are exposed too

It is easy to think of this as a northern-European problem. It is not. Services that call French Mediterranean hubs, or that use a French port as a transshipment node, can re-time their calls with little warning. If your cargo rides a service string with any French or adjacent call, your ETA is exposed even when your destination is Hamburg, Rotterdam or Felixstowe.

For importers in Germany, the Netherlands and the UK, the lesson is the same: treat any French or Mediterranean leg on your service string as a variable to be checked, not a fixed line on the schedule.

What to do this week

1. Audit every shipment with an ETA window from 27 October to early November. Anything landing in that band is potentially inside the disruption and its aftermath.
2. Ask your forwarder now whether re-routing via Benelux or German gateways is viable for those shipments — and what that does to your inland transit time and free-time exposure. The question is cheap; the rebooking is not, and it gets more expensive the closer you get to the date.
3. Confirm your detention and demurrage exposure before containers sit, not after. A stoppage is exactly when boxes go quiet and clock time accrues unseen.
4. Build a 7–10 day buffer into any late-October delivery commitment that touches a French or Mediterranean leg, and tell your customers the window is soft.

This is the same discipline that matters all quarter: published sailings are provisional until the vessel is loaded, and the real constraint is usable capacity at the destination, not just space on the water.

Where this fits in your Q4 plan

The French strike lands on top of a Q4 that is already constrained. The German port labour risk that dominated September was resolved, but the inland bottleneck it exposed did not go away — low Rhine water levels continue to limit barge capacity, and North European yard occupancy stays high. The French action is one more reason to keep buffer in your plan rather than assume the network has normalised.

If you ship from China to Germany, the Netherlands or the UK, the safest move is to decide your late-October routing this week, while alternatives still exist, and to treat the 30 October window as a hard planning boundary rather than a maybe.

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