Thia title brought up "Timecube" fears.  but otherwise, I like the idea as long as its not a dramatic change.  Should be a noticeable one, but not huge shifts.

Dunno, one turn is a very short period. Perhaps in combination with a longer period.

For example you could have a "decade of winds" in which the next 10 winter turns makes the air sphere more powerful, and then "decade of rains" etc.

as the seasons change evey turn it would be hard - if not impractical to plan it properly. - have it that there are chance "events" that occur and then they happen on random depending on what (season) the turn was at.