A second peak-season surge: transpacific rates up three straight weeks, with Panama Canal surcharges next
TL;DR: Transpacific spot rates accelerated again in mid-August. Drewry's World Container Index (Aug 20) closed at $4,526/FEU, up 4% on the week and a third consecutive weekly gain, with Shanghai-New York jumping 9% to $9,507/FEU and Shanghai-Los Angeles up 9% to $6,802/FEU. The rally is supply-driven: carriers are blanking sailings and trimming capacity through peak season — Asia-US East Coast capacity fell 9% month over month in August, with seven blank transpacific sailings already announced for next week — while US import demand stays resilient. From September, several carriers will also levy a Panama Canal surcharge on Asia-US East Coast and Gulf services, adding another cost item. Here are the numbers, the mechanics, and our September booking advice.
1) The latest numbers: WCI up a third week, both US coasts +9% again
We tracked in early August how transpacific GRIs landed and USEC quotes broke through $10,000. After a brief consolidation, rates re-accelerated in mid-August: Drewry's latest assessment (Aug 20) puts the WCI composite at $4,526/FEU, up 4% on the week — a third straight weekly increase, driven almost entirely by the transpacific.
By lane: Shanghai-New York spot rates rose 9% in a week to $9,507/FEU, and Shanghai-Los Angeles climbed 9% to $6,802/FEU, both coasts pressing toward their highs for the year. Drewry expects transpacific rates to hold steady next week given how tight capacity remains — in plain terms, easier to rise than to fall.
2) The supply-side logic: blank sailings, USEC capacity down 9% in August
Both sides of the balance sheet matter here, but supply is the active lever. On demand, US import volumes have stayed resilient through peak season, so carriers face little pressure to chase cargo. On supply, carriers keep managing deployment through blank sailings and capacity reductions: per Drewry's Container Capacity Insight, seven blank sailings are already announced on the transpacific for next week alone, and August capacity from Asia to the US East Coast fell 9% month over month, with Asia-US West Coast down 0.4% — further tightening space.
Resilient peak-season demand plus capacity discipline is why transpacific rates keep climbing — and it is the sharpest contrast with Europe, which eased this week (see below). For exporters it means pressure on both fronts: rollover risk rises when space is tight, and negotiating room narrows while prices climb.
3) The September variable: Panama Canal surcharges on Asia-USEC and Gulf services
Beyond spot rates, one cost increase is already locked in: several carriers will levy a Panama Canal surcharge on Asia-US East Coast and Asia-Gulf services from September. Services transiting the canal to the US East Coast and Gulf will pass higher tolls through to shippers, lifting landed costs on those lanes another notch.
Two practical implications. First, for USEC/Gulf cargo shipping in September or later, confirm in writing whether quotes already include the Panama Canal surcharge, its effective date and amount — avoid settling at a higher number than you booked. Second, once the surcharge lands, the all-in comparison between US West Coast discharge plus inland rail/truck and direct US East Coast service gets closer again, so shippers with flexible routings should re-run the numbers. For lane fundamentals, see our Qingdao-US East Coast and Qingdao-US West Coast route pages.
4) Europe for contrast: rates ease, German port strikes bite
While the transpacific surged, Asia-Europe eased slightly: Shanghai-Rotterdam spot rates slipped 1% to $4,401/FEU and Shanghai-Genoa fell 2% to $4,955/FEU. As we wrote earlier, a visible gap persists between Europe's second-round quotes (MSC's Aug 15 FAK at $7,800/$6,700) and spot — this week's fade confirms quotes are not deals.
On the operational side, week 33 average vessel waiting times ran 32.3 hours in Shanghai and 25.0 hours in Rotterdam — easing, but still elevated — and labor strikes at German ports keep schedule reliability under pressure, with two blank Asia-Europe sailings set for next week. Europe-bound shippers should keep extra buffer in their lead times.
5) The backdrop: the US-Iran MoU expires, some Red Sea/Suez transits resume
At the macro level, East-West trades remain clouded by two geopolitical variables. First, the US-Iran memorandum of understanding on the Strait of Hormuz signed in June expired in mid-August without extension; talks are stalled, transits remain far below pre-conflict levels, and uncertainty plus insurance and fuel costs stay high on Middle East lanes (Dubai, Damman and other Gulf ports). Second, after improved security assessments, some carriers have gradually resumed selected Red Sea/Suez transits — if that widens, effective Asia-Europe capacity loosens at the margin and Europe's rate support weakens further. We will keep tracking both.
6) September transpacific booking advice
With rising rates, tight capacity, and a new surcharge landing, layer your bookings by cargo type:
- Cargo that must ship in the next two weeks: space before price — book early, confirm space and cut-off times in writing to avoid peak-season rollovers; Drewry likewise advises booking ahead and building extra lead time into supply chains
- USEC/Gulf cargo: verify the September Panama Canal surcharge amount and effective date shipment by shipment, and check whether quotes include it; in parallel, cost out the "USWC discharge + inland" alternative
- Flexible cargo: watch the blank-sailing calendar and avoid booking into blanked weeks; if the pre-Golden Week pulse tightens space further in late September, consider shipping in earlier batches
- Compare thoroughly: peak-season spot quotes often hold just 7-14 days; get at least 2-3 carrier quotes per lane and confirm space/equipment guarantees and the complete surcharge list
- Europe cargo, in reverse: Europe's pullback is a window to negotiate — see the Europe post above for that lane's strategy
- Middle East/Red Sea-related lanes: confirm before booking whether the routing goes via Suez or around the Cape — transit times and insurance costs differ materially, so leave buffer
7) Closing: in late peak season, space is scarcer than price
The essence of this three-week run is carriers using blank sailings to squeeze resilient peak-season demand into structural tightness; with Panama Canal surcharges landing in September, USEC and Gulf costs step up again. For the next month or so, the scarcest thing may not be a low rate but certainty — certainty of getting on board and making the delivery window. Plan early, lock space, and pin down surcharge terms. Those are the practical moves for late peak season.
If you need transpacific, Europe, or Middle East ocean export bookings, multi-carrier rate comparison, surcharge-basis checks, or space protection, contact Mighty International — we can build a steadier space-and-cost plan around your volume cadence and delivery deadlines.