Changing the weather will allow you to not only change the scenery when visiting the same area but also gain access to new, previously inaccessible places.
Please beware that the main game Atelier Sophie 2: The Alchemist of the Mysterious Dream is currently also available for purchase separately and in the Atelier Sophie 2: The Alchemist of the Mysterious Dream Ultimate Edition set.
Useful Weapons Set
A set of six weapons with useful effects such as Normal Attack Count +2 that you can equip from the beginning of the game, one for each character: Sophie, Plachta, Ramizel, Alette, Olias, and Diebold. Atelier Sophie 2: The Alchemist of the Mysterious Dream Digital Deluxe Edition
In this set:
The main game Atelier Sophie 2: The Alchemist of the Mysterious Dream
Atelier Series Legacy Swimsuit Set
A set of six swimming costumes based on designs introduced in past Atelier titles, one for each character: Sophie, Plachta, Ramizel, Alette, Olias, and Diebold.
Note:
Costumes can be changed in the Changing Room at the desk in the atelier.