Run Velmonda as an app
- If you opened this from another app, tap the compass (bottom right) to open in Safari.
- In Safari tap Share.
- Tap “Add to Home Screen”.
Install it once and it opens full-screen from your Home Screen, no browser bar.
Add to Home Screen from your browser menu.
Last 30 days
84%
calls right
±3.6 kn
average error
41% of these 357 hours measured under 12 kn. A small average error earned mostly on calm hours is not strong-wind skill: judge each wind by its own row below.
Meltemi on its own: ±4.3 kn over 254 measured hours.
A call counts as right when forecast and anemometer agreed on which side of 12 kn the hour fell. Measured pairs only; sheltered sensors are excluded.
Last 14 days
- 26 03
- 25 04
- 22 05
- 18 06
- 11 07
- 7 08
- 8 09
- 9 10
- 13 11
- 11 12
- 11 13
- 25 14
- 30 15
- 18 16
Dot: the call we published. Number: the measured peak that day, in kn. An outline means no call was published or nothing was measured.
By wind
| Meltemi | 80% | ±4.3 | 254 |
|---|
The biggest miss
Sunday, September 27 at 13:00: we said 14 kn, it blew 3 kn.
The correction has moved since: +1.11 kn is now applied (refitted 2026-10-16).
About this forecast
Computed from the last 30 days of frozen forecasts paired against wind measured at this spot: the same pairs the calibration fits on. Sheltered or unverified sensors are excluded.