About MyCruiseForecast

MyCruiseForecast lines weather up with your cruise itinerary: each port on the day you are there, and wave heights on the days at sea.

Why it exists

A weather app shows one city at a time and stops about two weeks out. A cruise visits several places on different days, spends days at sea, and gets planned months ahead. This site connects the two. It is free, has no sign-up, and is independent of every cruise line.

Where the data comes from

• Live forecasts: about a week ahead. U.S. ports use NOAA/NWS. Every other port uses MET Norway (Norwegian Meteorological Institute, CC BY 4.0), and the German Weather Service (DWD, open data) adds a second forecast wherever one of its stations is within about 60 km. Where both exist the day shows MET Norway and the details show both. Alerts come from the National Weather Service for U.S. ports only. Days beyond the forecast range show typical conditions.
• Typical conditions: ECMWF climate records (ERA5) and Meteo-France wave records. The planner and the static pages use a built-in baseline from the 2022–2025 record.
• Sea state: the Douglas sea state scale, 0 to 9. See the sea state guide.
• Itineraries: published sailing schedules, which cruise lines can change.
• Maps: Natural Earth coastlines.

What typical conditions mean

Typical figures are averages for the date and place. They tell you what is likely, not what will happen. A specific day can be hotter, wetter or rougher. Sea-day figures on the static sailing pages are approximate, blended from the ports on either side of the day.

Limits

Ports and timing change, and weather can change an itinerary. Follow your cruise line and the ship’s captain. MyCruiseForecast is not for navigation and is not affiliated with any cruise line, NOAA, MET Norway or DWD.