Weathernews
Chiba-based Japanese weather and ship-routing company, founded in 1986.
Weathernews signed a memorandum, reported on 20 August 2026, with ClassNK, Evergreen Marine and Samsung Heavy Industries for a crewed commercial-vessel navigation trial aimed at saving fuel. The partners have named no vessel, trial date or expected saving.
Last refreshed: 7 October 2026 · Appears in 1 active topic
Will weather-routing firms become the data layer for autonomous ships?
Timeline for Weathernews
Mentioned in: Indian Register clears navy USV software
Autonomous Systems: Land & SeaSigned the trial memorandum
Autonomous Systems: Land & Sea: ClassNK to verify a fuel-saving sea trialBackground
Weathernews Inc. is a Japanese weather forecasting company founded on 11 June 1986 and headquartered at Makuhari in Chiba. It serves Marine, aviation and land clients, and its Marine business sells optimum ship routing, which plans voyages around weather to cut fuel use. The company reports 31 offices in 21 countries and describes itself as the largest privately owned weather company in the world.
In August 2026 it joined the classification society ClassNK, the container line Evergreen Marine and the shipbuilder Samsung Heavy Industries in a memorandum for a crewed commercial-vessel navigation trial. Its role is to supply navigation and weather data. The agreement describes a test, not an autonomous voyage, and the record gives no vessel name, trial date or measured result.
That role places Weathernews on the data side of ship autonomy. Routing software and weather feeds are inputs any automated navigation system needs, whether or not a CREW stays aboard, so the company can take part in autonomy trials without building vessels or control systems itself.
