I use a bike poncho, it covers the legs, too, and limits sweating because it is open underneath. Decathlon sells them for cheap, and them works. There is also normal colors, but I prefer to be absurdly visible (I want to see who says "I didn't seen him 🙂)
Every time I use it, I'm amazed I'm dry underneath (the face gets wet).
In any case, even if I don't wear it, I'm unlikely to get soaked, when rain is not that strong. We are not made of sugar!
crosspostated from: https://social.tchncs.de/users/lgsp/statuses/115484700218126774
Overshoes are great, also to keep the shoes clean!
But at some point during heavy rain, water starts leaking along the legs to the inside of the overshoes.
I always carry a pair of fresh socks with me because of that.