Hi,
Currently windy does not provide tide prediction in France and other part of the world.
Luckily someone creates an harmonic file for OpenCPN (in french, sorry…):
http://shoreline.fr/OpenCPN_V_33/3_Essentiel/E_61_Les_marees/E_61_Marees.htm#Zone_France
http://www.hisse-et-oh.com/matelots/9499
You can download the file here:
http://shoreline.fr/OpenCPN_V_33/3_Essentiel/E_61_Les_marees/Harmonics_V10/Harmonics_V10.zip
It adds prediction on France, but also other countries in Europe, Africa and South America.
Maybe it can help improving the coverage of tide prediction in windy ?
Kind regards,
Adrien