enjoythai.land

Weather, environment, and disasters

TMD Shipping Forecast.

Public Gulf of Thailand and Andaman / Malacca shipping forecast text for wind, wave, thunder, and heavy-rain marine context. Use as sea-state burden and ferry-risk evidence, not operator closure, ticket, or seat truth.

Public Public webpage Free public Operational / on marine-forecast update Open source
Runtime role

Decision driving

Access class

Public

Access type

Public webpage

Free status

Free public

Cadence

Operational / on marine-forecast update

Last verified

2026-05-11

Access class note

Public web, file, catalog, or documented endpoint access with no paid gate implied in the source profile.

Used in layers

source health, observation ingest, signal compute, decision compute

Useful fields

pier name, route family, operator, lat/lon, address, first or last boat context where available, booking window, cancellation rule, weather sensitivity, port or pier owner, connected transfer, source ID

Reliability rating

High for official context; validate endpoint availability before automation.

Runtime truth

Runtime role

Decision driving

Production ready

Yes

Entity scope

destination, province, region, route, pier, airport, station, island

Observation scope

marine_wind_speed_average, marine_wave_height_average, marine_wave_height_thunder, marine_thunderstorm_flag

Decision scope

where_to_go_today, route_check, ferry_check

Runtime note

Feeds active observations and signals that currently influence traveler-facing decisions.

How this helps travel recommendations

Turns ferry planning into source-backed decisions about which pier matters, how fragile an island transfer is, where the last-boat risk sits, what should stay refundable, and whether a route needs a mainland or airport backup.

Endpoint and API notes

Public Gulf of Thailand and Andaman / Malacca shipping forecast text for wind, wave, thunder, and heavy-rain marine context. Use as sea-state burden and ferry-risk evidence, not operator closure, ticket, or seat truth.

Open the source endpoint or documentation. Return to the Thailand data atlas.

Developer reference

Best endpoint

Use Marine Department and PAT pages for official pier and port context, OSM for landing and pier geometry, Namtang static pier/station layers where useful, and commercial operator or booking feeds only when you need live schedules, fares, or availability.

Recommended refresh

Refresh weekly or when the catalog metadata changes; many agency catalogs update irregularly.

Travel scoring role

Turns ferry planning into source-backed decisions about which pier matters, how fragile an island transfer is, where the last-boat risk sits, what should stay refundable, and whether a route needs a mainland or airport backup.

Comparable / backup source

Marine Department, PAT, OSM piers, Namtang stop and pier downloads, official operator pages, and commercial ferry booking/search surfaces where authorized.

Example request

# Source landing/download page; inspect linked resources before automation.
curl -L "https://www.tmd.go.th/en/forecast/shipping"

Failure modes

  • There is no single public national Thailand ferry timetable API.
  • Pier identity, operator schedule, and weather reality often come from different systems.
  • Consumer booking sites can show routes or timings that need operator or marine confirmation.
  • Last-boat timing, cancellation policy, and same-day sea-state risk can change faster than static pier pages.

Last checked and source confidence

Last checked: 2026-05-11.

Source confidence: Treat this profile as strongest for the exact role named above. It is weaker when the source is stretched into live availability, legal proof, or traveler-fit decisions it does not directly prove.