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How to Read Windguru for Wing Foiling

Writer: Queney Sebastien
Queney Sebastien
Oct 13
2 min read

How to Read Windguru for Wing Foiling


Reading a forecast is the first skill of an independent rider. Before you even touch a wing. Windguru is the go-to app for riders: five minutes, and you know whether to load the car or go back to bed. 😓

Vue aƩrienne de rider en kite, wing et efoil sur le lagon de Saint-FranƧois

šŸ“Š The four lines that matter


Wind speed:Ā the average wind, in knots. Your base for choosing a wing size.


  1. Gusts:Ā the peaks. They matter as much as the average.

  2. Direction:Ā the arrow shows where the wind comes from.

  3. Rain and clouds:Ā tropical squalls mean gusts and lulls.


Temperature and pressure? Skip them for now. How to read windguru !?


Windguru Saint FranƧois par vent lƩger
Rien de fou sur cette semaine par exemple, quelques crƩneaux possible en light wind pour les experts

šŸ’Ø Average vs. gusts: the real indicator


Everyone looks at the average. Good riders look at the gap with the gusts.


  • 15 knots, gusts 19:Ā clean, steady wind. Dream session. āœ…

  • 15 knots, gusts 26:Ā unstable wind. Your wing goes from too small to too big in ten seconds. āš ļø


Simple rule: the smaller the gap, the better the session. Beyond 8 to 10 knots of gap, a beginner will struggle.

Rider qui navigue avec les alizƩs sur la plage de la CoulƩe

šŸŽØ The colours


Windguru colour-codes the wind: light blue (not enough), then green, yellow and orange (game on), up to red and purple (experts only). For your first sessions, aim for green to yellow: roughly 12 to 20 knots.


šŸ‘‰ Then pick your size with What Size Wing Do I Need?


PrƩvision Windguru annotƩe pour le wingfoil Ơ Saint-FranƧois
Orange et Rouge : bon vent fort de prƩvu !

🧭 Direction changes everything


At the Saint-FranƧois lagoon, the trade winds come from the east, over the ocean. Result: clean wind. When it swings too far north, it crosses more land before reaching the lagoon, and gets gustier.


Remember: wind from the sea is steady, wind from the land is gusty.


šŸ¤– Why the models disagree


Windguru shows several forecast models (GFS, ICON and finer regional models). They don't always agree.


  • They agree:Ā trust them.

  • They don't:Ā the forecast is uncertain. Check the finest model and keep a margin. AROME 2.5km


Beyond three days, treat forecasts as a trend, not a promise.


ā›ˆļø Squalls, the tropical special


A squall is a dark cloud bringing rain, a gust in front and often a lull behind. Windguru flags them in the rain line, but not to the minute. On the water, keep your eyes open: a dark cloud coming from the east is your cue to head closer to the beach.


Grain tropical approchant du lagon de Saint-FranƧois

šŸ‘€ Forecast vs. reality


A forecast is just a forecast. In the morning, compare it with what you see: palm trees, the water surface, the clouds. Not sure? Ask us. We're on the beach every day.




FAQ


How do you read Windguru for wing foiling?

Look at the average wind, the gusts and the direction. The smaller the gap between average and gusts, the steadier the wind.

Ā Around 12 to 20 knots, with a small gap between average wind and gusts.

They use different calculations. When they disagree, the forecast is uncertain: keep a margin.



Ā 

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