Basically yes. You have to make 3 copies of the level, but…
It’s also quite possible to make all your materials ready to change seasons. There are plenty of marketplace products that do this, and it’s not rocket science:
Is a good example, it was free content recently.
There are also tutorials on you tube which show you how to make this sort of thing:
That one seems to be in 500 parts, but I’m sure there’s more
I was wondering how would go about having one of my levels but with different weather affects. For example, one could be spring, the other could be rainy and the the last could be snowy. Would I need to copy the level 3 times and set up different landscape materials and affects etc etc or is there a easier way to go about this?