@aaka I don't see any licence restrictions on ECMWF website either. A tot of Apps are delivering gribs from ECMWF
https://www.ecmwf.int/en/computing/software/ecmwf-web-api

@Curtis2010 French datas aree also free of charge

Hello everyone, thank you first for this app that I'm using every as a skipper. Just one regret, not being able to download the model from windy, in order to use with my plotter. It is very common and helpfull for sailing. So I have to go on other apps or website to download. As far as I understand Windy is using these grib models, so It is not very different from what I'm doing. Do you think this is something that would be possible to implement one day ?