The early peak season for U.S. container imports is beginning to wind down after retailers accelerated shipments to get ahead of new tariffs and supply chain uncertainty stemming from the tariff deadline, according to gCaptain.
West Coast surge
North America West Coast container ports saw a sharp rise in laden imports during the second quarter of 2026, as shippers moved cargo ahead of a July tariff deadline. According to Sea-Intelligence, major ports handled 3.7 million TEUs, representing year-on-year growth of 7.1 percent, as reported by Port Technology.
The surge was particularly notable in Southern California rather than the Pacific Northwest, with US container ports experiencing strong increases ahead of tariff deadlines, as highlighted by Global Maritime Hub and The Maritime Executive.
Resilient volumes despite uncertainty
US container ports continued to handle resilient import volumes in June 2026, even amid growing global trade risks, according to analysis by Descartes. U.S. containerized imports reached 2.40 million TEUs during the month, down just 1.2 percent from May but still 8.2 percent higher year-over-year, as noted in a Global Maritime Hub report.
The National Retail Federation reported that while import levels remain high, they have peaked early and are starting to decline steadily, marking a shift away from the initial tariff-driven rush observed earlier in the year.
Shippers and port operators need to adapt to these evolving dynamics. The continued uncertainty around trade policies and supply chain disruptions means staying informed about tariff changes and other regulatory shifts is crucial for maintaining efficient operations.
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