🇯🇵 Japan
Pacific Ocean · Multi-Purpose Port
In the last 180 days, ArcNautical recorded 32 vessel arrivals at Sakai, with Cargo accounting for 45% of port calls — lower than the Pacific Ocean regional average of 52%. Voyages from Sakai 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.
Across 32 distinct vessel arrivals, 31 carry a confirmed AIS ship-type code. The most common categories at Sakai:
Sakai falls under the Tokyo MoU. The Tokyo Memorandum of Understanding (Asia-Pacific) maintains the most active publicly-available regional PSC programme. Across the last 24 months, the Tokyo MoU detention dataset records 5,331 distinct vessel detentions (sourced from OpenSanctions, as of 2026-06-14). Vessel-level detention probability is computed by ArcNautical using flag performance, vessel age, deficiency history, and ownership opacity.
Last 10 vessel arrivals recorded by ArcNautical's AIS pipeline (last 90 days):
| Arrived | Vessel | Flag | Type |
|---|---|---|---|
| 2026-06-01 | YUN QIAN | 🇵🇦 PA | Cargo |
| 2026-06-01 | REBUN MARU NO.5 | 🇯🇵 JP | Tanker |
| 2026-06-01 | MATSUYAMA MARU NO.8 | 🇯🇵 JP | Tanker |
| 2026-06-01 | Unknown vessel | 🇯🇵 JP | Tug |
| 2026-06-01 | YUN QIAN | 🇵🇦 PA | Cargo |
| 2026-05-31 | TATUTA MARU | 🇯🇵 JP | Tug |
| 2026-05-31 | Unknown vessel | 🇯🇵 JP | Tug |
| 2026-05-31 | KIRISHIMA MARU NO.2 | 🇯🇵 JP | Tanker |
| 2026-05-31 | TAKANAWA | 🇯🇵 JP | Cargo |
| 2026-05-31 | S GLORIA | 🇰🇷 KR | Cargo |
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