iWindsurf: Weather and Waves 4+

Windy Conditions & Forecasts


Designed for iPad

    • 4.7 • 449 Ratings
    • Free
    • Offers In-App Purchases



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 65,000 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.

- 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, Forecasted 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

- 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.

What’s New

Version 5.39

Bug fixes and performance enhancements

Ratings and Reviews

4.7 out of 5
449 Ratings

449 Ratings

Not in Zim ,

More time to play!

I reside in Utah and am newer to the sport of Windsurfing. High mountain lakes can be very challenging as well as rewarding. It has been a bear attempting to locate reliable wind reports. It’s demoralizing to drive an hour and a half and find little wind or not realize that the wind will be excessively shifting around as it does some days.. I am grateful I found this app! I am able to get to the lakes more often and have a much better time learning and laughing at myself. I am noticeably improving so that’s great. There is the occasional kiteboarding going on and they feel the gruff of the mountain lakes too. It would be clearly obvious with this app which day to get out and do that. See you there!

Developer Response ,

So great to hear, Not in Zim. Be sure to tell your windsurfing buddies about iWindsurf!

janem227 ,

Not a windsurfer, but....

I live in a remote location on the southern Oregon coast where there is quite a bit of windsurfing. Due to the remote location at the ocean, it is difficult to get accurate forecasts of any kind, let alone specific wind gusts down to the hour. I’ve used iWindsurf on my iPhone for a few years and it’s the best forecasting I can get. Also, after a strong gust rocks my place, I can check in at the closest location to learn fairly quickly just how strong it was. I really appreciate this app!

Developer Response ,

Outstanding, Jane!

sup windsurfer ,

No life without the iWindsurf app!!!

I have been using iWindsurf since about the mid 80’s and it has made my life so much better and fun because all of my family windsurfs so the weather forecasts, along with all the other windsurf information on it has been great! We have bought and sold gear with it, found places to sail that we knew nothing about, got advice from your blog, and seriously check it every single day of my life for Wind !!! I could go on and on but it is THE BEST APP I HAVE!!!! Thank you big time!!!! Bill Mangan

Developer Response ,

Stoked to hear it, Bill. This is EXACTLY what we are trying to accomplish! :)

App Privacy

The developer, WeatherFlow, 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:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

More By This Developer

WindAlert: Wind & Weather Map
FishWeather: Marine Forecasts
SailFlow: Marine Forecasts
Tempest Weather
Wind & Weather Meter
iKitesurf: Weather & Waves

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