Free GRIB File Software

PredictWind Offshore App

The simplest way to download GRIB forecast files.

This free app from PredictWind allows the seamless downloading of multiple GRIB files for your coastal or offshore passage. The intuitive interface not only allows GRIB files to be downloaded but also Weather Routes, GMDSS Text forecasts and Satellite Imagery.
Download a version of the Offshore App.
GRIB Files
  • GRIB files are a special binary format of weather data.
  • It is the same forecast as available on the weather forecast site, but as the files are highly compressed, it is ideal for downloading across wireless communication devices.
  • GRIB files can be displayed on most popular navigation software, and can be used for optimal weather routing.
How It Works

Select GRIB Type

Choose between offshore and high resolution GRIB files depending on your trip and account (high resolution only in Standard & Professional accounts).

Plot Trip

Click and drag the start and finish points for your trip as well as adding any waypoints. The app will select the relevant grib areas.

Download GRIB Files

Check the file size and date updated and easily download the GRIB files you need for your trip.

Trip Tools

The app includes a collection of incredible tools for trip planning and forecasting including PredictWinds powerful Weather Routing, GMDSS text forecast’s & Satellite imagery.

Viewing GRIB Files

The PredictWind Offshore app downloads all the required GRIB files to a directory to be viewed in any range of GRIB viewing platforms. Compatible with all major navigation programs including Maxsea, Deckman, Evolution, Nobletec, MapTech, Open CPN, PC Plotter, Expedition and many more...

An example of a PredictWind 100km resolution GRIB file.

An example of a PredictWind 1km resolution GRIB file.