The Northwest Seaport Alliance (Seattle + Tacoma) Weekly Volumes & Metrics Report 9/30/25

For the week ending September 19 international imports and vessel lifts were up week over week but down year over year. Truck transactions were down both from the week before and year over year.  

International imports rose 9% from the previous week, but down 29.2% compared to the September 2024 weekly average. Truck transactions were down 8.4% from the week before and 16.6% compared to the September 2024 weekly average. Vessel lifts were up 7.1% and down 10.2% for those respective metrics.

You can find previous week’s report here. You can find the full vessel schedule, including the 4 week look ahead and breakdown by harbor, here.   

Vessel Calls

Week Ending September 12 – 13 Voyages (2 Void) 

Week Ending September 19 – 12 Voyages (1 Void, 2 Delay) 

Week Ending September 26 – 12 Voyages (1 Void, 1 Delay) 

Week Ending October 3 – 12 Voyages (2 Void) 

 
Weekly International Import Containers

Week Ending September 19 – 11,970 containers imported  

-6.9% vs 2025 YTD (12,860)  

-11.9% vs 2024 Weekly Average (13,592)  

-29.3% vs September 2024 Weekly Average (16,936) 

 
Weekly Truck Transactions (Containers In/Out of Terminal via Truck)

Week Ending September 19 – 23,534 truck transactions  

-2.3% vs 2025 YTD Average (24,078)  

-16.6% vs September 2024 Weekly Average (28,215) 

 
Weekly Vessel Lifts (Containers On/Off a Vessel)

*Includes Empty Container Moves   

Week Ending September 19 – 26,274

-3.1% vs 2025 YTD Average (27,105)  

-10.2% vs September 2024 Weekly Average (29,261)