Wyndow Fusion hyperlocal forecasts for kite, wind & surf. Kairos AI on Explorer (your regions) & Navigator (worldwide). Widgets + Watch included.
Wyndow is the weather and planning companion for kitesurfers, windsurfers, and surfers who want forecasts that match how they actually ride — not generic beach weather. Every plan includes Wyndow Fusion, our ML-enhanced hyperlocal layer (~100 m), blended with ICON-EU, ECMWF, GFS, and regional national models where they matter for your spot.
See the wind and the ocean, not just the numbers
Browse spots on a map or list, open a spot, and get forecasts tuned for going on the water: wind speed and direction, gusts, waves, tides when available, and more. Narrowcast keeps today and tomorrow in focus; Explorer and Navigator add longer multi-day Forecast views so you can line up sessions with the right conditions — whether you’re on a kite, a windsurf rig, or a board. Set condition-based alerts so you hear when it’s worth checking the forecast.
Your spots, your sessions
Keep track of where you rode and how it felt. Log sessions on iPhone or Apple Watch with notes and ratings, then share a session card when you want to show friends what you scored. Learn what works for you over time.
Apple Watch companion (every plan)
Check wind and waves from your wrist, sync saved spots to the watch (limits vary by plan), log sessions on the water, and use complications for a quick read between sets. The watch app works with your iPhone — one account, no extra subscription tier for watch access.
Ask in plain language
Use Kairos, the built-in assistant, to ask about conditions, spots, or planning — like chatting with someone who knows wind and wave sports. Voice input is optional when you’d rather talk than type (Navigator).
Stay in sync across devices
Use Wyndow on iPhone, Apple Watch, and the web app when you want a bigger screen; your account ties forecasts, spots, alerts, and sessions together.
Built for riders
Whether you kite, windsurf, surf, foil, or chase nuking wind, Wyndow helps you spend less time guessing and more time on the water.
Terms of Use (EULA): https://www.wyndow.surf/terms
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
CHANGES AND IMPROVEMENTS - MAP
- When using the timeline navigation, both the weather stations markers and the spot callout no longer display conflicting information
CHANGES AND IMPROVEMENTS - OBSERVATIONS
- Various improvements to the observations vs forecast chart make it easier to read
- Added subtle vertical dash lines to indicate sunrise and sunset on the observations vs forecast charts
- Improved the spot maps with a readable legend showing the wind and swell values
CHANGES AND IMPROVEMENTS - NARROWCAST AND FORECAST
- Added collapsing sticky headers in the spot narrowcast and forecast enabling you to see Sky, wind, swell and tide on one screen
CHANGES AND IMPROVEMENTS - WATCH APP
- Apple Watch now displays the real institute observations data
CHANGES AND IMPROVEMENTS - TRIP PLAN
- You can now adjust the trip schedule when you create a plan
- The trip plans now show the wind direction
- Added an expanded view of the "When shared vs latest" chart
- The best window now prefers stretches with highest mean score
- The best time to kite is now the peak score hour inside a stretch
- Creating a trip plan now inherits the weather model you're currently viewing
- From a shared plan you can now open the forecast and change models
- From forecast you can now see if you have an existing plan to open
- Added day chips to identify days with an existing plan
CHANGES AND IMPROVEMENTS - GENERAL
- Improved error handling and greater stability
FIXES - TRIP PLAN
- Fixed an issue which was limiting forecast shares to 6 hours and potentially exclude best window
- The live vs shared chart now displays data
FIXES - GENERAL
- Fixed inconsistencies in the Best time to Kite recommendations
- iOS session expiry is now enforced
Version 1.5.1
The developer, Julien Petiot, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Location
Contact Info
User Content
Identifiers
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Julien Petiot
Size
54.4 MB
Category
Weather
Compatibility
Requires iOS 15.1 or later.
iPhone Requires iOS 15.1 or later.
iPad Requires iPadOS 15.1 or later.
iPod touch Requires iOS 15.1 or later.
Apple Watch Requires watchOS 10.0 or later.
Location
This app may use your location even when it isn’t open, which can decrease device battery life.