Port Klang and PSA in 2026: A Shipper's Guide to Congestion, Delays and Cargo Risk

In early December 2025, the average vessel arriving at Port Klang's Westports terminal waited around two days before berthing. By mid-February 2026 that had dropped to half a day, only to climb again by the end of the month. If that sounds like volatility rather than congestion, you're reading the data correctly.

The story at Port Klang and PSA Singapore through the first quarter of 2026 is not a single sustained jam. It's a pattern of sharp month-on-month swings, driven by factors that sit largely outside either port's control.

For cargo owners, logistics managers and forwarders moving goods through Peninsular Malaysia and Singapore, the operational picture matters. The insurance picture matters more than most realise.

What the 2026 numbers actually show

Both Port Klang and PSA Singapore are operating in a fundamentally different environment from 2023. Ship bunching from Red Sea diversions, pre- and post-Lunar New Year demand surges, crane and quay works, and downstream spillover from Middle East instability have combined to create a congestion pattern that looks less like a traffic jam and more like a heartbeat.

Expect stability for a fortnight, then a spike.

Here's how the three main Malaysia-Singapore hubs compared through the first quarter of 2026, using seven-day average vessel waiting times:

Three things stand out.

Port Klang's Westports terminal has shown the widest swing, moving from around half a day to over two and a half days inside a single quarter. PSA Singapore has been structurally more stable but remains consistently elevated, sitting in the one-to-one-and-a-half day band rather than the under-one-day band seen at well-run regional ports in calmer periods.

Tanjung Pelepas, often treated as the overflow option for Port Klang traffic, has had its own capacity constraints from new quay crane installations. It's not a reliable relief valve right now.

Yard utilisation tells a second, quieter story. PSA has been running 80 to 90% utilisation for most of Q1 2026. Port Klang Westports briefly exceeded 100%.

Once yard utilisation crosses roughly 85%, operational efficiency drops faster than the utilisation figure suggests. More lifts per move, slower truck turnarounds, missed stacks. What looks like a one-day delay on paper can translate to three days of knock-on schedule disruption for the shipper.

What's driving the delays

The first-order cause is vessel bunching. Shipping lines running Asia-Europe strings spent most of 2024 and 2025 rerouting around the Cape of Good Hope to avoid Houthi attacks in the Red Sea. When vessels eventually return to Asia off their original schedules, they arrive in clusters rather than the clean weekly cadence ports are built around. Three megaships showing up within 48 hours of each other is enough to tip yard utilisation into the red for a week.

The second cause, for Q1 2026, is the Hormuz crisis. US and Israeli strikes on Iran in late February 2026 and the subsequent effective closure of the Strait of Hormuz have forced another round of re-routings, particularly for Middle East services that previously ran through the Gulf. Some of this cargo diverts through Singapore and Port Klang as transhipment hubs. Some gets bumped to later sailings. Either way, the downstream effect on PSA and Westports is more bunching.

The third cause is closer to home. Port Klang's Westports terminal has been running at or near structural capacity for two years. Yard utilisation over 90% was normal through 2025 and remains common through 2026.

PSA has been more systematic about expansion, with the Tuas mega-port coming online in phases. But its current operational berths are absorbing higher volumes than originally planned as carriers reroute.

The picture changes week to week. The direction of travel does not.

What the congestion actually costs you (beyond freight)

The freight cost of congestion is obvious. Demurrage, detention, and congestion surcharges are passed through fast. Some carriers have been levying Red Sea-related congestion surcharges since 2024. The costs that experienced shippers underestimate are the ones that sit outside the freight invoice.

Longer time at anchor and in-yard changes the risk profile of your cargo. This is not theoretical.

Under the Institute Cargo Clauses (A) 2009 transit clause (Clause 8.1), cover attaches from the time the goods are first moved in the warehouse for the purpose of immediate loading, continues during the ordinary course of transit, and terminates on one of four defined triggers. Clause 8.3 specifically keeps cover in force during delay beyond the control of the assured, any deviation, forced discharge, reshipment or transhipment. So yes, you remain covered while your ship sits at anchorage.

But specific risks accumulate the longer cargo sits: pilferage and theft exposure at anchorage, moisture and heat damage in loaded containers waiting for discharge, temperature excursions on reefers facing plug-in delays, and inherent vice issues for commodities that degrade with time (palm oil, rubber, electronics in humid yard conditions).

There's also the issue of Clause 8.1.4, which terminates transit cover on the expiry of 60 days after completion of discharge from the oversea vessel at the final port of discharge, unless an extension is agreed. Congestion-related delays at destination can, in edge cases, push cargo close to or past this threshold. Most shippers don't realise they are running this clock until something goes wrong. Our guide on when marine cargo coverage ends walks through each of the four termination triggers in detail.

There's a second clause worth knowing during sustained disruption. Under Clause 9 of the ICC (A) 2009, if the contract of carriage is terminated at a port or place other than the named destination (for instance, if a carrier declares force majeure and abandons cargo at an intermediate port), cover terminates too, unless prompt notice is given to insurers and continuation of cover is requested.

This is a live risk during the kind of re-routing happening around the Hormuz and Red Sea disruptions. Cargo diverted to an unplanned transhipment port without notice to your insurer is cargo with compromised cover.

The general average exposure also rises. Not because GA declarations are more common at congested ports, but because the longer a vessel is at sea, the more voyages are affected by fuel-related incidents, fires in containers awaiting discharge, and machinery failures on ageing tonnage pressed into extended Cape routings. A GA declaration triggers a shipper's obligation to contribute to general average. Without proper cargo insurance, that contribution comes straight out of the shipper's own balance sheet.

How experienced shippers are adjusting in 2026

The shippers we speak to who move through Port Klang and PSA regularly are doing four things differently in 2026.

They're watching yard utilisation, not just waiting times. Waiting time is a lagging indicator. A port running at 88% yard utilisation for two weeks in a row is telling you the next bunching event will be painful, even if current waits look manageable.

They're using Tanjung Pelepas more deliberately. PTP has capacity constraints of its own right now, but for routes where the transhipment flexibility exists, it's acting as a genuine alternative for some cargoes rather than just overflow for Port Klang. This matters because switching transhipment hubs mid-policy can affect Institute Cargo Clauses cover if the policy specifies ports of loading and discharge. Under Clause 10.1 of the ICC (A) 2009, a change of destination after attachment must be notified promptly to insurers for rates and terms to be agreed. A quick call to your broker before re-routing avoids a coverage headache later.

They're tightening their documentation discipline. When vessels arrive bunched and terminals race to clear yards, paperwork errors multiply. Wrong Bill of Lading consignee names, mismatched packing lists, missing delivery orders. These errors can complicate claims, because insurers will ask for documentation trails that show proper notice of loss and proper custody chain. If your documentation is sloppy under pressure, your claim is harder to defend.

They're reviewing their sum insured against current commodity values. Cargo insurance sums insured are usually set at CIF plus 10%, a convention carried through from Incoterms 2020 practice and UCP 600 Article 28. If the underlying commodity value has moved sharply since the last policy renewal, being underinsured is a real risk. A general average contribution or a partial loss claim is assessed against the insured value, not the market value.

Port-specific risk considerations

Port Klang's two terminals, Westports and Northport, behave differently under stress. Westports handles the majority of container traffic and is where congestion shows up first. Northport, which handles more breakbulk and conventional cargo, sees fewer bunching spikes but has its own equipment constraints. For shippers with flexibility on terminal choice, this split matters.

PSA Singapore's ongoing shift to Tuas changes the calculus on multi-year policies. Existing berths at Tanjong Pagar, Keppel, Brani and Pasir Panjang are being progressively consolidated at Tuas. For shippers whose goods routinely transit specific terminals, the question of which terminals are still operational through 2027 and 2028 matters for route planning and, by extension, for policy coverage areas.

Both ports remain fundamentally resilient in the regional comparison. Mombasa has been running four to five day average waits through Q1 2026. Casablanca exceeded eight days in late February. Conakry has had weeks averaging over 20 days. Port Klang and PSA remain among the better-performing hubs in their peer group. That's part of why they keep absorbing diverted traffic from other routes, and why the pressure is unlikely to ease materially before 2027.

What to watch through Q2 and Q3 2026

Three variables will dictate whether Port Klang and PSA congestion stabilises or deteriorates through the middle of 2026.

The first is the Hormuz situation. As of April 2026, the Strait of Hormuz remains effectively closed to commercial traffic, with a US naval blockade of Iranian ports and active ceasefire negotiations. If the situation resolves, some tanker and container traffic will return to normal Gulf routings, easing bunching pressure on ASEAN hubs. If it escalates further, more cargo will reroute through Singapore and Port Klang, worsening the pattern.

The second is Red Sea return rates. As of March 2026, about 18.7% of east-to-west shipping was transiting the Suez Canal, well below the pre-disruption level of roughly 80%. Maersk has restarted limited Red Sea services. CMA CGM has been more cautious. A broader Red Sea return would release tonnage into the market and, in theory, smooth vessel arrivals. A renewed Houthi campaign, which has been threatened in response to the Iran conflict, would push carriers back to Cape routings and extend bunching for the rest of the year.

The third is Lunar New Year and Ramadan effects rolling through Q2. Port Klang's Westports operated on adjusted shift patterns through Ramadan, in line with the standard Malaysian operational calendar. Most shippers plan for this. Fewer plan for what happens when Ramadan's operational rhythms combine with post-LNY inventory restocking and mid-year stockbuild for Q4 retail seasonality.

The honest answer for a shipper planning through 2026 is that congestion is a constant variable, not a passing problem. The carriers know this, which is why the major lines have restructured their Asia-Europe and Asia-Middle East services around the assumption of longer transits and more uncertain arrivals. The shippers who fare best are the ones who build the same assumption into their logistics and their insurance.

FAQ

Does my cargo insurance still cover me if my vessel is held at anchorage for a week?

Yes. Clause 8.3 of the ICC (A) 2009 expressly keeps cover in force during delay beyond the control of the assured, any deviation, forced discharge, reshipment or transhipment, subject to policy terms and conditions. Transit cover only terminates on one of the four triggers in Clauses 8.1.1 to 8.1.4, which include warehouse arrival, election to use storage, or the 60-day post-discharge cut-off.

What happens if my container sits at Port Klang or PSA for a month after discharge?

Cover continues up to 60 days after completion of discharge from the oversea vessel at the final port, under Clause 8.1.4. Beyond that, separate storage cover or a Stock Throughput policy may be needed. For full detail, see our guide on when marine cargo coverage ends.

What happens if my cargo is diverted to a port not named in my policy?

Under Clause 9 of the ICC (A) 2009, if the contract of carriage is terminated at a port other than the named destination, cover terminates unless prompt notice is given to insurers and continuation is requested. This can happen when carriers declare force majeure or re-route around congestion. Notify your broker as soon as you know of the diversion.

Are general average contributions covered during congestion-related delays?

Yes. General average and salvage charges are covered under Clause 2 of the ICC (A) 2009, subject to policy terms and conditions. GA is declared by the shipowner's average adjuster following a voluntary sacrifice or extraordinary expenditure for the common maritime adventure, and is governed by the York-Antwerp Rules.

Should I switch from single-shipment to open cover given the schedule volatility in 2026?

If you ship regularly through Port Klang or PSA, probably yes. Open cover binds every shipment falling within agreed terms automatically, without chasing individual certificates. Eligibility usually depends on volume, commodity, and claims history, subject to underwriter acceptance.

Does the Hormuz crisis affect my cargo insurance if I'm not shipping to the Gulf?

Indirectly, yes. Vessel bunching caused by global re-routings affects your transit times, congestion exposure, and potentially your general average risk, even on intra-Asia routes. For the full picture, see our Hormuz crisis guide for Malaysian exporters.

What documentation matters most for a cargo claim during port congestion?

Bill of Lading showing consignee and discharge terms, the commercial invoice, the packing list, a survey report if damage is found, photographs, and any delivery order or gate-out records. Any evidence showing custody and condition at each handover point is useful.

Voyage Conclusion

Port Klang and PSA in 2026 are not broken ports. They are regionally strong hubs operating under persistent, externally-driven pressure that isn't going away in the next six months.

The waiting time figures swing month to month. The risk pattern, for any shipper whose cargo routinely moves through these terminals, does not.

A cargo policy that was fit for purpose in 2022 may not reflect how your goods actually move in 2026. Voyage arranges marine cargo cover for shippers, exporters and importers across Malaysia and Singapore, working with licensed broking partners and international underwriters.

Disclaimer: This article provides general guidance on port congestion and marine cargo insurance as of April 2026. Coverage terms, conditions, and availability vary by insurer, policy, and jurisdiction. Regulatory requirements differ between countries and may change. Always review your specific policy wording and consult a qualified insurance or legal professional before making coverage decisions.

Vessel waiting time and yard utilisation figures compiled from Kuehne+Nagel Port Operational Updates, weekly editions December 2025 to March 2026. JWC Listed Areas information from LMA Circular JWLA-033 dated 3 March 2026. Suez Canal transit data from S&P Global Market Intelligence, March 2026.