Hi Wim,
I have noticed the wind forecast from Darksky has always been really low, it rarely gets above 10km/h, however I think I have just worked out why.
It seems the Darksky wind forecast gives a range and I think the forecast on my site is just giving the lower range of that forecast.
As an example, for today the wind forecast from Darksky is 13-48km/h and tomorrow it is to be 6-31km/h. However the forecast for those days on my site is 13km/h and 6km/h.
If this is the case, I was just wondering how hard would it be to incorporate the full range into the forecast.
The link to my site is,
https://micklehamweather.com/pwsWD/
The full darksky forecast can be seen here,
http://micklehamweather.com/wxforecast.php
Thanks,
Neil