Now you can get the phases of the moon not only in the app but also on the Windy.app site.
To do this go to your nearest or desired spot which you can find through the search, for example the kite and windsurfing mecca Tarifa in Spain.
Moon phases are located at the end of the forecast table. They can be useful for fishing (the solunar forecast includes them), hiking, outdoor photography and other activities.
Phases of the moon in the weather forecast for Tarifa, Spain, on the Windy.app site