Avalon Offshore
Avalon Navigation Systems
About this app
- Age 10
- Updated Nov 8, 2025
- OS IOS
Editor reviews
Avalon Offshore is a marine navigation and offshore weather app built for boaters, sailors, anglers, and offshore crews. It delivers high-resolution marine forecasts and intuitive route planning so you can make safer, smarter decisions at sea. With global coverage, offline capability, and a clean map-first interface, it’s a dependable tool for coastal trips and bluewater passages.
Core features
- Pro-grade marine forecasts: wind, waves, swell, currents, precipitation, visibility, and pressure with hourly timelines and multi-day outlooks.
- Weather-aware route planning: overlay forecasts on your route, evaluate departure windows, and compare alternatives for safer passages.
- Offline charts and tracking: download regions for offline use, record GPS tracks, manage waypoints, and receive configurable alerts.
Ideal for users seeking a marine navigation app, offshore weather forecast, nautical charts, and reliable route planning for boating, sailing, and fishing.
Screenshots
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How to use:
1. Download and install Avalon Offshore, then open the app and allow Location and Notifications for accurate positioning and timely alerts.
2. Create an account or continue as a guest, choose your region and units, and download chart and forecast packs for offline use if you plan to go offshore.
3. Explore conditions by opening the Map, enabling layers like wind, waves, and currents, and scrubbing the timeline to view hourly forecasts; tap the map for detailed point forecasts.
4. Plan your route by selecting Plan, setting start and destination, adding waypoints, and choosing a departure time; review ETA, distance, and forecast along the route, then save.
5. Start navigation to follow your GPS track, monitor changing weather on the map, and set alerts for wind speed, wave height, or storms; sync logs and export routes when finished.