iWindsurf: Weather and Waves7.12 - App Store

Whether you are wing foiling, wavesailing in breaking waves, or windsurfing the gnar on your local bay, river, or lake, you want and need the best possible forecasts and live wind reports... and iWindsurf has them! We have deployed over 90,000 proprietary Tempest Weather Systems, giving you real-time local weather right where you sail. With exclusive iWindsurf stations on near shore markers, buoys, piers, breakwaters, and key waterfront spots, we have a terrific number of local windsurfing areas covered. Our Tempest Rapid Refresh Model delivers the most accurate Nearcast predictions to our customers. We supplement our proprietary data with information from government agencies including: NOAA, NWS, and bring in reports sets including the AWOS, ASOS, METAR, and even CWOP. iWindsurf creates a complete view of the weather with radar, forecast maps, and customized alerting.

Why you should download iWindsurf:

- Coastal observations from proprietary Tempest Weather Systems along with all public domain marine forecasts and reports (NOAA, NWS, METAR, ASOS, CWOP) including all major airports creating over 125,000 unique stations.

- Our exclusive Tempest Weather Systems deployed at coastal buildings, and at beaches, with haptic rain sensors, sonic anemometers, along with local barometric pressure sensors, provide ground truth observations.

- Apple Watch compatibility

- Live wind from our systems provides a better windy conditions flow map - augmented by current station reports with advanced quality control.

- Our Proprietary AI-enhanced Nearcast provides enhanced forecasting for temperature, wind gust, speed, direction, humidity, dewpoint, precipitation rate, probability of precipitation, and cloud cover percentage.

- Public domain forecast models including High Resolution Rapid Refresh (HRRR), North American Mesoscale Forecast System (NAM), Global Forecast System (GFS), Canadian Meteorological Centre Model (CMC), Icosahedral Non Hydrostatic Model (ICON).

- Free subscription for unlimited wind alerts with customizable thresholds to email, text, or in-app.

- Create your own Favorite station list to keep an eye on your go-to weather stations at your foiling, windsurfing, and surfing spots.

- Maps - Live and Forecasted Wind, Temperature, Radar, Satellite, Precipitation and Clouds, as well as Nautical Charts.

- National Weather Service (NWS) Marine Forecasts & Marine Warnings / Alerts

- Also:
- Tides charts
- Wave height, wave period
- Water temperature
- Sunrise / sunset
- Moonrise / moonset
- Historical wind statistics
- Wind direction distribution

Want more weather?

- Upgrade to Plus, Pro, or Gold membership to gain access to more weather stations and forecasts.

- Access our exclusive ultra high-quality array of meteorologist-sited Pro stations at tip top coastal locations.

- Unlock access to iWindsurf’s second-to-none meteorologist-written hyper-accurate Pro forecasts written daily for windsurfing hotspots coast-to-coast.

- Detailed weather info, gusts, rain radar, satellite, NOAA, NWS, at spots of interest to coastal residents and property owners near the ocean, rivers, and other bodies of water.

- On the water features
- Sea surface temperatures
- Sea surface currents
- Detailed historical wind statistics
- Historical wind speed average by year

What else can you do?

- Get a Tempest Weather System for your house, business, windsurf club, pier, or backyard.

Support: https://help.weatherflow.com/hc/en-us/categories/200419268-Sailflow-iKitesurf-iWindsurf-FishWeather-WindAlert

Connect:
- https://facebook.com/tempestwx
- https://twitter.com/tempest_wx
- https://youtube.com/@tempestwx
- https://instagram.com/tempest.earth

Contact Tempest: https://help.weatherflow.com/hc/en-us/requests/new
Website: https://tempest.earth

By purchasing a subscription or downloading iWindsurf you agree that you have read and accept our Privacy Policy and Terms of Use.
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Version History Enjoy improved nautical map performance, bug fixes, and new French localization now available in the Complete Report. 7.12 Sep 27 Improved subscription management and purchase restoration, plus a new way to access your membership and favorite spots across devices and the web. We’ve also added a new Pro Forecast preview for users who haven’t upgraded to Pro. 7.11 Sep 2 This small update includes improved French localization and minor bug fixes and performance improvements to keep everything running smoothly. 7.10 Aug 13 This small update includes improved French localization and minor bug fixes and performance improvements to keep everything running smoothly. 7.09 Aug 10 This release is all about behind-the-scenes improvements. You won't notice any changes today, but these updates will help us better shape the app experience. Over time, that means a more intuitive interface, smoother workflows, and quicker access to the features that matter most to you. 7.08 Jul 11 We've redesigned the mobile checkout flow to make purchasing quicker and more intuitive. We've also squashed bugs and made a variety of performance improvements to create an even better experience throughout the app. Update today and enjoy! 7.07 Jul 2 Bug Fixes and Performance Enhancements 7.05 Jun 6 Bug Fixes and Performance Enhancements 7.04 May 29 Bug Fixes and Performance Enhancements 7.03 May 21 Navigate faster with streamlined access to your go-to spots, enhanced search, and a more immersive full-screen map. Enjoy a cleaner, ad-free experience with Plus, Pro and Gold memberships, smarter Pro forecasts, improved organization, and clearer, more intuitive views. 7.0 Apr 30 Bug Fixes and Performance Enhancements 6.38 Jan 13 We’ve added a new Advisories Layer to your iWindsurf map! Quickly view official government alerts, such as weather watches and warnings, high surf advisories, small craft advisories, and more - right on the map. Stay aware, stay prepared, and get the full weather picture at a glance. 6.36 12/05/2025 We’ve added a new Advisories Layer to your iWindsurf map! Quickly view official government alerts, such as weather watches and warnings, high surf advisories, small craft advisories, and more - right on the map. Stay aware, stay prepared, and get the full weather picture at a glance. 6.35 12/03/2025 Bug fixes and performance enhancements 6.34 11/20/2025 Bug fixes and performance enhancements 6.33 11/11/2025 Bug fixes and performance enhancements 6.32 11/06/2025 Bug fixes and performance enhancements 6.29 08/21/2025 Bug fixes and performance enhancements 6.28 08/04/2025 Bug fixes and performance enhancements 6.26 07/10/2025 Bug fixes and performance enhancements 6.25 06/18/2025 Bug fixes and performance enhancements 6.24 05/21/2025 Bug fixes and performance enhancements 6.23 04/10/2025 Just in time for the start of the season, we’ve completely redesigned the Pro Forecast to get you the information you want faster and give you more control than ever!

Fresh New Look – A sleek, modern design that eliminates unnecessary scrolling for an even better experience.
User Customization – Expand and collapse each forecast spot to quickly see your favorites.
Update now and check out the new Pro Forecast design in our in-season forecast regions. 6.22 04/01/2025 Bug fixes and performance enhancements 6.21 03/12/2025 Bug fixes and performance enhancements 6.19 02/09/2025