European Port Congestion: What Importers Should Do Now

Rotterdam. Antwerp. Hamburg. If your supply chain touches any of Europe's big three container gateways this summer, build in extra days now, not after your cargo is already stuck. Congestion at Northern Europe's ports is not clearing up on its own, and analysts don't expect real relief before August 2026 at the earliest.1

This isn't a one-week blip you can quote your way around. It's a structural backlog that's been building since spring, and it's now colliding head-on with peak season front-loading. Here's what's actually happening, why it's lasting this long, and what to do about it if you're importing into or out of Europe right now.

Barge wait times of 72+ hours are the real bottleneck

The headlines focus on vessels queued outside the breakwater, but the bigger problem for importers is inland. Barge operators on the Rhine corridor are seeing average congestion-related delays exceeding 96 hours at deep-sea terminals, and wait times at Rotterdam and Antwerp are regularly stretching toward 72 to 75 hours.2 At that point, just-in-time barge collection for onward inland delivery stops being commercially viable.

At Rotterdam specifically, three causes are compounding each other: terminal congestion, tidal windows, and lock scheduling. A single missed lock slot adds 8 to 24 hours on its own, before the cascading terminal queues and anchorage waits stack on top.2

Why this round of congestion is lasting so long

Port congestion isn't new. What's different this time is that several separate problems are hitting at once instead of clearing in sequence.

• Berth waiting times have jumped sharply. In Antwerp, berth waiting times rose from 32 hours in week 13 to 44 hours in week 20, a 37% increase in about seven weeks, according to Drewry data.3

• Labor disruption eased, but the backlog didn't. Strike action among dockworkers, lashers, and pilots at Rotterdam and Antwerp has largely wound down, but the vessel backlogs it created across Europe's trade hubs have kept deepening rather than clearing.4

• Peak season front-loading is adding volume at the worst possible time. Importers on both sides of the Atlantic are rushing shipments to get ahead of the next round of U.S. tariff changes, and that surge in bookings is landing directly on top of an already-strained network.5

Carriers are already rerouting. Your booking confirmation might not say so.

Maersk, CMA CGM, and MSC have all revised schedules in response, extending transit times and adjusting or skipping calls at the affected terminals to manage the backlog.6 That's the right operational move for the carriers. It's a problem for you if you're planning inventory arrival dates off a schedule that was accurate three weeks ago and hasn't been updated since.

This is also happening against a backdrop of ocean freight rates that are already elevated for reasons that have nothing to do with congestion. The Drewry World Container Index has climbed roughly 40% above the same period last year, driven largely by importers front-loading ahead of tariff deadlines.5 Congestion surcharges and extended dwell time get layered on top of that, not instead of it. We covered the rate side of this in detail in our piece on the June rate spike; the congestion picture is the operational half of the same story.

What a week of delay actually costs you

A vessel or barge sitting an extra 72 hours doesn't sound catastrophic on paper. In practice, it means inventory that's booked for a specific retail or replenishment window arrives late, warehouse labor gets scheduled against a receiving date that moves twice, and demurrage or detention charges start accruing if your free time at the terminal runs out before your cargo even reaches you. None of that shows up on the freight quote you were given.

This isn't just a European problem

If you're a U.S. importer, it's tempting to file this under "not my port." Don't. A large share of U.S. e-commerce and DTC brands route European-bound inventory, returns, or wholesale replenishment through Rotterdam and Antwerp because those two ports are the primary gateways into the EU's road, rail, and barge network. If your fulfillment center in the Netherlands or Belgium is waiting on a container stuck in a 72-hour barge queue, that's your Q3 sell-through at risk, not a European carrier's problem.

There's also a capacity link back to your transpacific bookings. Carriers manage global fleets, not regional ones. When vessels get held up or schedules get revised on Asia-Europe strings, that same tonnage is slower to redeploy onto other trades, adding to the general capacity tightness already pushing transpacific rates higher this peak season.

What to do now, not once your cargo is already delayed

You can't fix Rotterdam's lock schedule. You can control how exposed your shipments are to it.

• Add real buffer to your transit estimates. If your forwarder's quoted transit time doesn't already reflect current berth and barge wait data, add 5 to 7 days for anything routing through Rotterdam or Antwerp before you commit to a retail or production date.

• Ask for current congestion data before you book, not after. A forwarder should be able to tell you today's berth waiting times and barge backlog at your specific port of entry, not just last month's average.

• Consider an alternate port of entry. Hamburg is seeing queues too, but spreading volume across multiple gateways instead of concentrating everything at Rotterdam or Antwerp reduces your single-point-of-failure risk.

• Split out time-critical SKUs. For inventory tied to a hard launch date or holiday sell-through window, moving a portion by air freight can be cheaper than the cost of missing the window entirely, even at a premium per kilo.

• Confirm your demurrage, detention, and cargo insurance terms now. Delay-related costs are exactly the kind of thing that gets disputed after the fact. Know your free time and your cargo insurance coverage before the delay happens, not while you're on hold with a claims desk.

• Lock in space early instead of chasing spot rates. Capacity that's already strained by congestion gets tighter every week peak season builds. Booking early protects your slot more than it protects your rate.

When does this actually clear up?

Analyst expectations point to August 2026 at the earliest for meaningful improvement, and that's contingent on two things happening: import volume from front-loading tapering off as importers exhaust the inventory they rushed in ahead of tariff deadlines, and carriers restoring blanked sailings back into active rotation to free up berth space.1 If either one slips, so does the timeline.

Until then, treat every shipment routing through Northern Europe as a shipment that needs a buffer, a backup port, and a forwarder who's actually watching the congestion data instead of quoting off a schedule from last month.

Cubic tracks live port and berth conditions across every major European gateway, so your shipment plan reflects what's happening at the terminal today, not what the carrier's website said three weeks ago. Talk to us about your European routing before your next booking.