Your spot. Your rules. Know when it's on.
Six Open-Meteo model runs, the tide and your own quiver, scored per hour for you, seven days ahead. You write the rule for your spot once. It tells you when things line up.
What it weighs: 6 models, How much they agree, Gusts as power, Wind direction, Tide height, Ebb or flood, Hours after high/low, Swell height, Swell period, Swell direction, Daylight, Your level, Your weight, Your quiver, Your size factor, Your rules.
Try it on your spot
Pick a spot or drop a pin. Add your weight and one kite. That is the whole setup, and the forecast is the real one.
Your spot has rules. Now the forecast knows them.
Some spots only work on the ebb.
Write the rule once, in plain words. The plan checks it every hour of every day and lights up when it fires.
Rule · Ebb against the wind- Tide is falling
- Wind at least 15 kn
- from SW to NW
- Alert me
Example line for Thursday 12 Nov. The rule format is real; the wind in this card is not.
Paje: flat lagoon, two hours either side.
The lagoon is flat between 110 and 185 cm. Lower, only the second lagoon has water. Higher, the reef is on and it chops up. The window moves every day, so the plan draws it for you.
Second lagoon onlyFlat lagoonChoppy, reef onYour window Real tide model, Sunday 15 Nov. Calibrated on beach observations.
The 5 or the 3.5?
Your weight, your gear, your taste. If you always end up a size bigger than the chart says, tell it once and every pick follows.
80 kg · wing ·18–23 knSW· quiver 5 m + 3.5 mThe model: ideal 4.1 mthe 3.5 mYou ride 10% bigger than the model: ideal 4.5 mthe 5 mComputed by the same size model the plan uses. Kites work the same way.
Log every sesh.
Tap Going on a window you will ride. Afterwards we ask one thing: how was it? The session lands in your passport already filled in with the wind, gust, direction, tide, gear size and the plan score. Import a GPS track and it joins the session. Every sesh gets a share card.
The plan said 17–24 kn SW · 9 m. Tell us how it really was and it goes into your passport, prefilled.
Example with invented data.
- Nothing to type twice. Wind, gust, direction, tide and gear size come from the plan.
- Did not go? One tap for why. It counts too.
- Your own record. Self-logged sessions sit in your passport next to lessons your school signed, and stay marked as yours.
Your season, and the evening before.
Your season
Every window you said Going to, and what came of it. How often you planned, how often you rode, and how often it was as good as the plan said.
Example with invented numbers.
Email the evening before
- Alerts are free.
- One email a day at most.
- Only when one of your rules fires at a saved spot.
- Unsubscribe in one click.
Windguru shows the wind.
So does Windy, and both do it well. This tells you when your spot is on, for you.
- The models
- Forecast site:Six models side by side. You do the maths.
- Plan your sesh:One verdict per hour, plus how much the models agree.
- The tide
- Forecast site:A table of highs and lows.
- Plan your sesh:A rule: falling, above 110 cm, whatever your spot needs.
- The kite
- Forecast site:Sizes for an average rider.
- Plan your sesh:Your weight, your quiver and your own size factor.
- The checking
- Forecast site:You open it every morning.
- Plan your sesh:It tells you. The great moments of the week, and an email the evening before when a rule fires.
A forecast, not a promise.
- Wind comes from free, open data. Six model runs through Open-Meteo (CC BY 4.0): five weather models plus its own best match. When they disagree, we say so instead of averaging it away.
- Dutch tides come from Rijkswaterstaat (CC0). Our high and low water times land within about 10 minutes of their tide tables on average, and within 20 minutes in 95% of cases.
- The Paje lagoon is calibrated on beach observations, timed on the sand, not read off a chart.
- Everywhere else starts rough. Wind is as good as the models; the tide is a sea-level curve until you add your own window. Look at the water before you rig.
Stop checking. Start rigging.
Free. Your spot, your rules, your quiver, one plan.