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.

From the Team at PredictWind
Delivering the most accurate forecast online

What’s New

Version 4.4.1

Updated offline help. Also fixed an issue with map legend colors, and a crash.

Ratings and Reviews

4.5 out of 5
24 Ratings

24 Ratings

teach2sail ,

Recommend to all my clients

Teach2sail has logged over 50,000nm offshore supporting owners of various motor and sailing vessels. We use Predict Wind via SSB radio and the Iridium Go every time. Predict Wind has helped us successfully navigate all kinds of conditions from going between two cylones in the South Pacific Ocean to avoiding the Atlantic high/doldrums by moving from one weather system to another via a narrrow "bridge" of opportunity in the Atlantic. Presently crossing the Indian Ocean and wouldn't do it without them!

elgatoannie ,

Can’t Imagine Life without it!

Since we bought our cruising cat we have sailed the Med, crossed the Atlantic, sailed the Caribbean, Bahamas, Bermuda, the east coast up to Maine and back down twice.
This program rocks!
While near shore we use our phone or tablet, but offshore we use Iridium Go!. Weather routing feels so much safer and let’s face it our lives depend on it.
Recommend spending time with it onshore, watching tutorials, and making your own notes before heading out as it takes time to learn and use it efficiently.
The support crew is an e mail or phone call away and they have always been quick to respond and extremely helpful.
This is the best bang for your buck when it comes to being safe at sea.

Neil and Martha ,

Predictwind Offshore

Just plain excellent! Just finished 30th roundtrip to Fiji on our Swan 48 Trumpeter. Writing this from Opua, New Zealand.
All downloads for Euro and GFS and both predictwind analysis took between 6 and 8 minutes with the Iridium GO. The forecasts were very accurate and the routing was key in my decisions when to lay Opua. Getting 4 forecasts every 12 hours at sea is pretty darn cool…I love this technology! Get It!!!


PredictWind Limited
121.2 MB

macOS 10.13 or later, 64-bit processor



Age Rating
Rated 4+
© 2014 PredictWind Ltd


  • Family Sharing

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

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