PH-UKU is quite right in everything he says.
The weather is perhaps not as good as down south but is generally 'useable'. Last year, I did my tailwheel conversion at Prestwick - and struggled to find crosswind conditions that took me to the aeroplane limits (Chipmunk, and the civvy limits are only 10knots!) In 10 hours (20 sorties) of aerobatics, where I look at least for 4,500' cloudbase, I had to cancel only one trip.
Our weather is generally better than you might expect!