I built a free fishing forecast tool solo. I would love brutal UX feedback on the interface

Hey r/SideProject,
I've been building Link: https://fishornot.com/dev solo, a free fishing forecast tool (no signup, no paywall, no ads). The idea: most fishing apps lock basic info like tide/moon/solunar data behind $80–150/year subscriptions, so I built a free alternative.
My design goal was "check it like a watch" - open it, glance, get your answer in a couple of seconds, done. Everything layered onto one screen instead of menus and pages to dig through. That's the thing I most want feedback on: did I actually achieve that, or does it feel cluttered?
Specific things I'd love eyes on:

First impression, when you land, is it obvious what you're looking at and what to do? Or overwhelming?
The one-screen layout, forecast, moon, weather, calendar, nearby spots all stacked. Does it read cleanly on mobile, or is it too much?
The "fish activity" score (Poor/Fair/Good/Excellent), clear, or confusing?
Anything that made you go "huh?" or that you'd expect to work and didn't.

It's a PWA (vanilla JS, no framework), works on mobile and desktop. No login needed, just open it and it defaults to a location, or you can search/allow GPS.
Link: https://fishornot.com/dev
Brutal honesty welcome - I'd rather hear "this part's confusing" now than have visitors bounce silently.

Thank you!