U.S. Container Imports Hit Third-Highest Level on Record — What Importers Should Prepare for Next

U.S. container imports climbed to 2,603,709 TEU in August 2026, according to Descartes’ September Global Shipping Report — up 3.8% from July and 3.3% higher than August 2025. It’s the third-highest single month on record, trailing only May 2022 and July 2025. On its own, that’s a demand story. The more operationally important part of the same report is this: transit delays increased across all major U.S. gateways in August, and the Descartes data specifically flags Houston as one of the ports where that slowdown is most pronounced.

For importers, especially those routing cargo through the Gulf Coast, this is the kind of report that’s easy to read as “imports are strong, business is good” and easy to underprepare for operationally. Volume and delay are rising together, and that combination has real consequences for drayage bookings, CFS dwell time, and warehouse receiving capacity heading into the fall.

What Happened: August Imports by the Numbers

Descartes’ report puts the national picture like this:

Total volume: 2,603,709 TEU in August 2026, the third-highest month on record behind May 2022 (2,622,465 TEU) and July 2025 (2,621,910 TEU)
Month-over-month: up 3.8% from July 2026
Year-over-year: up 3.3% versus August 2025, and 21.5% above pre-pandemic August 2019
Year-to-date: still running about 0.4% below the same period in 2025
China-origin imports: 884,318 TEU, up 1.3% month-over-month and 1.7% year-over-year, though China’s share of total imports slipped slightly to 34.0% (from 34.8% in July)
Fastest-growing origins: Indonesia (+19.5% month-over-month), Thailand (+10.4%), and Vietnam (+5.2%) posted the strongest gains among top sourcing countries

Descartes attributed the pressure on the network to “rising port delays, tighter Panama Canal capacity, expanded tariff exposure, and persistent disruption” across key corridors — a combination that’s less about any single cause and more about several stress points compounding at once.

Delays Are Rising at Every Major Gateway — Houston Especially

The report’s transit delay findings are arguably the more actionable part of this update for shippers already planning September and October bookings. Transit delays increased at every major U.S. gateway in August, not just on one coast. Descartes’ data specifically calls out Houston, where transit delays rose by roughly 1.5 days month-over-month even as the port’s import volume grew about 4.7% versus July — a pairing that’s consistent with what happens when cargo volume outpaces terminal, chassis, and yard capacity at the same time.

That pattern lines up with what Port Houston’s own July 2026 trade report describes: container growth that “remains positive but has moderated following stronger activity due to frontloading earlier in the year,” alongside East Asian import growth of roughly 10% year-to-date. In plain terms, a lot of cargo got pulled forward earlier in 2026 to get ahead of tariff changes, and Gulf Coast infrastructure is now absorbing both that earlier surge and a strong, un-cooperatively extended peak season on top of it.

Disclaimer: Port-level delay and volume figures cited above are drawn from Descartes’ September 2026 Global Shipping Report as referenced in industry coverage. Conditions at individual terminals can change quickly; importers with active shipments should confirm current terminal-specific dwell times and appointment availability directly with their carrier, drayage provider, or customs broker.

Why This Is Happening Now: Peak Season Isn’t Over

Part of what’s driving the August numbers — and what’s likely to keep pressure on ports through September — is that 2026’s shipping peak season didn’t end when most forecasters expected it to. The National Retail Federation’s Global Port Tracker, updated September 9, 2026, revised its forecast upward after initially calling for a wind-down: September is now projected at 2.31 million TEU, up 9.6% year-over-year, before easing to 2.11 million in October, dipping slightly in November, and ticking back up in December.

NRF’s Jonathan Gold summed up the surprise directly: “We thought the peak season would be mostly behind us by now, but that’s not the case.” NRF and Hackett Associates cited vessel delays from adverse weather in China, rerouting away from the Panama Canal over drought-related draft restrictions, and sustained consumer demand as the main reasons the season has run longer than expected.

Freight rates reflect the same pressure. As of early September 2026, Asia–U.S. West Coast rates were running around $6,000–$7,000 per container, and Asia–U.S. East Coast rates $8,000–$9,000, with East Coast capacity described as “particularly tight.” Unusually low quoted rates are circulating in the market too, but typically come with very limited space — not a reliable option for shippers who need guaranteed capacity ahead of holiday inventory deadlines.

What Rising Port Delays Mean Operationally

A 1.5-day increase in port transit delay doesn’t stay contained to the port. It moves downstream into every part of the inland supply chain:

Drayage capacity tightens. Truckers booked for a container pickup based on an expected vessel or terminal availability date may show up to find the box isn’t ready, creating scheduling gaps and, in tight markets, higher spot drayage rates.
Chassis availability gets squeezed. Extended dwell time means containers sit on chassis longer before they’re picked up, reducing the pool of available chassis for new pickups — a bottleneck that compounds delay rather than resolving it.
CFS and container yard congestion builds. Less-than-container-load (LCL) cargo moving through a container freight station can see slower deconsolidation and longer pickup windows when the surrounding terminal is already congested.
Demurrage and detention exposure rises. The longer a container sits at the terminal or on a chassis past its free time, the more importers risk per-diem charges that erode margin on shipments that were otherwise on budget.
Warehouse receiving schedules get compressed. When inbound arrival dates slip and then several delayed containers arrive in a short window, receiving teams face bunched-up inbound volume instead of the steady flow they planned staffing around.

What This Means for Gulf Coast and Houston-Area Shippers Specifically

Houston’s growth as an import gateway has been part of the broader shift of cargo away from congestion-prone West Coast ports over the past couple of years, but that same growth is now testing Gulf Coast terminal and inland capacity in ways that weren’t as visible when volumes were lower. Shippers routing through Houston should treat the port’s current combination of rising volume and rising delay as a planning input, not background noise — particularly for time-sensitive inventory headed into Q4.

A local presence matters here. A 3PL or forwarder with actual Houston-area warehousing and drayage relationships can typically react faster to a terminal appointment slipping or a chassis shortage than a provider coordinating the shipment remotely, simply because they have the local visibility and existing carrier relationships to reroute or expedite when something changes.

What Importers Should Check and Prepare Now

Build extra buffer into transit time estimates, especially for Houston and Gulf Coast routings, rather than planning against pre-congestion dwell times.
Confirm drayage and chassis availability with your provider before booking, not after the vessel arrives — capacity is tighter than it was earlier in the year.
Review your free time and demurrage/detention terms with your carrier and consider whether faster pickup arrangements are worth the cost given current dwell times.
Check warehouse receiving capacity and staffing against the possibility of delayed shipments arriving in clusters rather than on their original schedule.
Have customs documentation and any required certificates ready well ahead of arrival — a shipment held up in customs review on top of an already-delayed terminal pickup compounds the problem rather than just adding to it.
Talk to your broker or forwarder about routing flexibility if a specific gateway is showing consistent delay increases, including whether transloading or an alternate port of entry makes sense for time-sensitive cargo.

Key Takeaway

August’s import numbers tell a strong-demand story, but the more useful signal for importers is what’s happening to transit times at the same time volume is climbing — especially in Houston, where delay and volume grew together in the same month. With NRF now projecting an extended peak season running stronger than expected through September, the ports and inland networks handling this cargo are likely to stay under pressure for at least the next several weeks. Importers who build in buffer time, lock in drayage and warehouse capacity early, and keep documentation ready are in a much better position than those treating this month’s report as just another volume update.

PNP LINE supports U.S. importers with ocean freight forwarding, customs clearance, drayage coordination, and Gulf Coast warehousing — including our Texas facility — to help keep shipments moving when port conditions get tight.

Learn more about international freight forwarding and U.S. customs clearance from PNP LINE, or see our Texas warehouse for Houston-area 3PL and drayage support during peak season congestion.

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Source References

Descartes Systems Group, September 2026 Global Shipping Report (August 2026 U.S. container import data), as reported via industry coverage — https://www.descartes.com/resources/global-logistics-shipping-report-resource-center
Logistics Management, “U.S. container imports hit third-highest level on record in August, reports Descartes” — https://www.logisticsmgmt.com/article/u.s_container_imports_hit_third_highest_level_on_record_in_august_reports_descartes
Port Houston, HSC Region Monthly Trade Market Report, published August 20, 2026 (July 2026 data) — https://porthouston.com/wp-content/uploads/2026/08/HSC-Region-Monthly-Trade-Market-Report-8.20.2026-2.pdf
National Retail Federation, “Import Cargo’s Peak Season Not Over Yet,” September 9, 2026 — https://nrf.com/media-center/press-releases/import-cargo-s-peak-season-not-over-yet
FreightRight, “Transpacific Ocean Freight Rates Hold High as Peak Season Nears (Early) Close — TFX Update, Week of September 7, 2026” — https://www.freightright.com/news/transpacific-ocean-freight-rates-hold-high-as-peak-season-nears-early-close-tfx-update-wk-september-7-2026

Disclaimer: This article reflects publicly reported shipping and port data as of the date above. Port congestion, transit delays, and freight rates change quickly and can vary by specific terminal, carrier, and shipment. Importers should confirm current conditions with their carrier, drayage provider, or customs broker before making routing or scheduling decisions.

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