Weather4D Lite

Weather4D Lite

Download on the App Store

The 4th Dimension

Weather4D Lite is a powerful meteorological application based on atmospheric and oceanic data in GRIB format. It benefits from an interface derived from the “Routing & Navigation” version.

View combined weather data displayed in 3D HD layers animated automatically or manually by sliding a finger on the screen.

Use GFS model to get started. In addition, over 35 weather and oceanographic models are available with a yearly subscription (in-app purchase).

Create your own geographical zones, select the models you need and download only the characteristics that matter to you: data type, resolution, periodicity, file size, etc. GRIB files can be downloaded anywhere through a regular or satellite internet connection.

Split the screen (iPad only) to combine and/or compare: navigation and weather, weather and waves or currents, two weather models… The splitted screens can display charts at different scales.

Create or import locations, combine them with GRIB forecast models and get a holistic view of the sea conditions.

Default Model and Charts

  • GFS global weather forecast model at 0.25 °, 0.5 °, 1 ° and 2 ° resolutions
  • BING global chart
  • OSM (Opens Street Map) global chart

Optional Models (in-app purchase)


  • GDPS Global (Canada)
  • ICON Global
  • ECMWF IFS (Global)
  • ECMWF AIFS (Global)
  • NAM (USA)
  • ICON-EU Europe
  • ARPEGE Global, Europe
  • AROME France, Antilles, Guyane, Polynésie, Calédonie, Océan Indie
  • AROME HD France
  • ICON D2
  • UKV (Royaume-Uni sud)


  • GFS Wave (Global)
  • MFWAM Global, Europe, France
  • IFREMER WW3 (Manche-Atlantique)


  • HYCOM (Global)
  • Copernicus SMOC (Global)
  • Copernicus Global, IBI, ENWS, Baltic, Med
  • WCPS (Saint-Laurent)
  • IFREMER (Manche-Atlantique)

Compare with other Weather4D Apps

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