Strait of Malacca
3ElevatedTransit data to 28 Aug · IMF PortWatch derived, lags a few days
87% of baseline
201 a day against a 12-month average of 230
+0.7%
7-day average 201 transits/day, down 13% vs the trailing 12-month average. Source: IMF PortWatch, data to 2026-08-28.
Compare two weeks
53 weeks held238.6 transits/day in the week to 2025-08-29 (103% of baseline), against 200.6 in the week to 2026-08-28 (87% of baseline) — down 15.9%.
Seven-day averages, sampled weekly, from IMF PortWatch's published daily series, 2025-08-29 to 2026-08-28. One baseline across every week, so a share moves for one reason only. Reconstructed from the published record, not an archive this product watched accumulate.
Disrupted for 11 days, since 2026-08-18, running 12% below baseline on average.
1 disruption episode in the last 12 months; the current one began 2026-08-18 and has run 11 days.
12% below baseline on average, with a trough of 191 transits a day.
The main artery between the Indian and Pacific Oceans and Asia's busiest energy passage: most Middle East crude bound for China, Japan, and Korea moves through it. The alternatives (Sunda, Lombok) add days of steaming, so sustained disruption tightens effective tanker supply and Asian freight first.
Transit flow against baseline and congestion at Singapore anchorages.
Piracy and incident reports in the strait and the South China Sea approaches.
Any China-adjacent naval friction that touches the strait's approaches.