IN Brief:
- Shanghai's seven-day average vessel waiting time has risen to 5.21 days, while Ningbo is averaging 3.45 days.
- Ningbo yard occupancy is running at 92–95%, with reefer plug utilisation at 94%, as terminals absorb disrupted vessel and container flows.
- Schedule recovery now depends on berth capacity, yard evacuation, empty equipment, trucking, and feeder networks returning to alignment.
Typhoon Saudel has left Shanghai and Ningbo dealing with another period of heavy port congestion, with the weather disruption now feeding into vessel queues, high terminal density, trucking pressure, and a greater risk of containers missing their intended sailings.
The immediate storm closures have passed, but the two eastern China gateways remain well outside normal operating conditions. Current seven-day average vessel waiting times stand at 5.21 days in Shanghai and 3.45 days in Ningbo, reflecting the time required to work delayed ships back through berth schedules after repeated weather disruption.
Ningbo is also carrying exceptionally high landside pressure. Yard occupancy is running at 92–95%, while reefer plug utilisation has reached 94%, leaving relatively little spare capacity to absorb bunching among vessels and containers arriving outside their original windows.
Shanghai faces a different version of the same problem. Vessel queues, berth congestion, high yard density, and schedule adjustments are contributing to cargo backlogs, with the risk of rollovers and transhipment delays continuing after terminal operations have resumed.
The latest disruption follows the backlog created by Typhoon Dolphin earlier in August, when Shanghai and Ningbo were already trying to recover vessels, containers, trucks, and inland movements displaced by temporary closures. Repeated interruptions leave progressively less spare capacity for the network to absorb the next weather event.
Congestion migrates through the network
A delayed containership does not recover its schedule simply by leaving the affected port. Its next terminal may have allocated the original berth window to another vessel, creating a second wait or forcing the carrier to shorten the call, omit a port, or alter the rotation to recover time.
Several late vessels arriving close together also create a different workload from the timetable terminals were expecting. Crane gangs, pilots, tugs, yard equipment, road gates, and feeder connections have to absorb concentrated demand instead of a predictable sequence of calls, making it harder to restore normal productivity even when the weather is no longer restricting operations.
Container yards can become the limiting factor before berth capacity does. Imports that remain inside the terminal for longer occupy ground slots needed for new arrivals, while export containers delayed by earlier gate restrictions can reach the port in a compressed wave once normal acceptance resumes.
That creates pressure on reefer infrastructure as well as conventional dry-container storage. With 94% of Ningbo’s reefer plug capacity already in use, the margin for additional temperature-controlled boxes is narrow, particularly if vessels are delayed and refrigerated cargo remains ashore longer than planned.
Empty equipment adds another layer. Exporters need containers of the correct size and type at the right depot before factory loading can begin, while emptied import boxes have to be returned, inspected, and repositioned. Disruption at either end of that cycle can leave the regional container pool looking adequate overall while individual exporters struggle to obtain usable equipment.
Road transport then has to clear movements that accumulated while terminal operations were restricted. Cancelled or delayed truck appointments cannot all be replaced in the first available shift, and warehouse receiving schedules may already have been reorganised around the earlier disruption.
The result is a series of linked queues rather than a single port backlog. A vessel delay can become a yard problem, the yard problem can move to truck gates, and a missed export sailing can eventually reappear as late production material or inventory at the destination.
September schedules inherit August’s disruption
The pressure in eastern China is part of a wider container shipping problem. More than 4.3 million TEU of containership capacity has recently been waiting to berth globally, exceeding the previous absolute peak recorded during the pandemic period even though today’s worldwide fleet is considerably larger.
That congestion reduces the spare vessel capacity available for schedule recovery. Carriers can alter rotations, omit calls, charter additional tonnage, or move cargo through alternative ports, but each intervention transfers cost or disruption somewhere else in the network.
Manufacturing supply chains feel the effect through variability rather than the port status itself. Components booked on a sailing that is rolled or re-routed can arrive several days later than planned, forcing buyers to use safety stock, expedite replacement material, or adjust production schedules if inventory is already tight.
Exporters face the corresponding uncertainty over terminal cut-offs and equipment. Finished goods can be ready to move while the nominated vessel, container, or gate appointment is no longer available on the original timetable, leaving stock occupying warehouse space while transport arrangements are rebuilt.
The current data indicates that the operational recovery is still incomplete. Shanghai’s 5.21-day average wait and Ningbo’s combination of berth delays, 92–95% yard occupancy, and near-full reefer utilisation leave little room for another disruption without extending the backlog further.
Weather conditions can improve in hours; container networks generally recover more slowly. The next useful measure will be whether vessel waiting times, yard density, equipment availability, and rollover risk decline together during September rather than congestion merely shifting from one part of the network to another.
