You won’t believe me :) I was just about to write to you about the rain in our previous thread. I was thinking about refilling ponds with rain from time to time, but unfortunately, there’s no rain on Nauvis. It would be a bit weird if water appeared from nowhere.
I know a couple of mods that add rain to Nauvis, but in those mods it can only be either permanently on or completely off, since the Factorio API doesn’t allow changing weather dynamically