The FTO you are training with, and the number of students tends to be more important than the weather.
If you are one of a large number of students attached to one instructor (possibly all at different stages of CPL / ME / IR etc) then you will frequently miss your "slot" if the weather at your scheduled training time is not quite suitable.
Choose an FTO where the Instructor has only 2 students, and he/she will fit your flying and ground breifings around the weather with no problem. (You've done your Met, you know the speed that fronts generally go through) Add an Airport with 3 runways, where you're always into wind (or out of it if your Instructor so decides) and you should complete your CPL in 3 weeks + 1 for tests etc with no difficulty - any time of the British year.