I created a world a few month ago for a role play game, Ryuutama. The game system is higly based on season and weather, but I'm not good in time gestion as GM. I so decided that regions will have their season, lasting forever.
I was wondering, if this weather setup is possible?
4 regions: the most South island is the Spring Island. Then you have a bit North the archipelago of Summer, composed of jungle island on the northern and southern edge, and arid islands in the middle. North, you've then the Autumn archipelago, wet and rainy and the most North, you've the Winter island. There's a large volcano on the last island, in an Hawaian like perpetual eruption. The remaining part of the world are oceans. The larger islands (Spring and Winter) have approximatively 200 km of radius, other islands maximum 50 km of radius.
The planet is Earth-like, with Earth-like wildlife. The planet may be smaller than Earth but with a equivalent gravity. The star of this planet is Sun-like. There may be multiple satellite if its help the weather scenario.
Humans have an early industrial era activity (steampunk style, with a magical non polluting energy source).
There is some magic, but not enough to influence weather on a large scale.