Powered by PredictWind's world leading marine weather forecasts, the free offshore app allows seamless downloading of multiple GRIB files for your coastal or offshore passage. The intuitive interface allows you to download and immediately view GRIB files, weather routes, GMDSS Text forecasts and Satellite Imagery. PredictWind's proprietary PWG and PWE marine weather forecast models are available along with the ECWMF and GFS models to provide the most accurate forecasts, available at the highest resolution.

Download and view animated weather forecasts, Weather Routing and Departure Planning for your next offshore passage. The Weather Routing & Departure Planning is calculated on the PredictWind server with the highest resolution forecast data, but the file size is incredibly small, making it ideal for transmission over low bandwidth Satellite & SSB connections.

Works with Wi-Fi, mobile networks, and most satellite connectons using the Iridium GO!, Globalstar, and Optimizer interface in the Offshore App.

What’s New

Version 4.4.1

Updated offline help. Also fixed an issue with map legend colors, the weather route info popup, and a crash.

Ratings and Reviews

3.9 out of 5
13 Ratings

13 Ratings

@iosworld ,

Doesn't work on the iPod

Great app in combination with an IridiumGo on iPhone and iPad. For some reason doesn’t work on my iPod Touch. I have reported this to Iridium but it's been months now. Should be an easy bug to fix, no reason for it not to work on the iPod Touch.

tmmakawao ,

Selling public data for a high cost

It’s too bad that this app offer very little data for the base level subscription at 3.99 per month, and is really selling noaa and public government supported data for a very high margin. Plus it doesn’t give you wave maps which is as important as wind in determining a course. In addition it takes a long time to load.

Developer Response ,

The GFS model from NOAA is the only data that we provide that is free of cost. The PWG / PWE model is run on our servers and can only be found at PredictWind, and cost hundreds of thousands of dollars in computing power along. The ECMWF model costs Euro 168,000 per year. Learn more at

alexchiric ,

A have to have companion at see

I use predictwind/offshore application by more than one year. Actually, I have passed 7 seas and I am on the way to cross the Atlantic Ocean. In more than 95%the forecasts have been accurate and the mathematical model used let you a plenty of options to choose a departure schedule or to make a passage.


PredictWind Limited
145.2 MB

Requires iOS 11.4 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2015 PredictWind Ltd


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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