Port of Yokohama

Maritime Risk Context

In the last 180 days, ArcNautical recorded 75 vessel arrivals at Yokohama, with Cargo accounting for 51% of port calls — in line with the Pacific Ocean regional average of 52%. Voyages from Yokohama in Japan cross the world's largest ocean basin, where route optimisation and weather routing have significant financial implications — a single transpacific crossing can consume hundreds of tonnes of fuel, and a one-knot speed variation over a 12-day voyage materially affects both cost and schedule. The western Pacific generates more tropical cyclones than any other basin (≈26 named storms annually), with typhoon season June–November producing winds above 150 knots and waves exceeding 15 metres. North Korea sanctions enforcement is a significant compliance concern: UN Security Council resolutions prohibit ship-to-ship transfers to DPRK vessels, and dark-activity (AIS disablement) is a common evasion signal in the East China Sea and Yellow Sea.

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