Any tips on catching Kyogre?

Little trick is to turn on AR then turn it back off and kyogre will always go back to the centre position

Don't curve. I got mine with a great straight ball (of course, always use golden razz).

Good luck!

I find it easier to hit with a curveball when Kyogre is flying left or right, because then you just throw the curveball into the middle and it hits pretty central (at least when i do that).

"My curve ball throw usually curves too much and falls right pass the red circle."

I had that problem and used Neva21's trick. Now I can usually get a Great throw while it's in the centre too.

Personally, if you're able to raid quite a bit, I think it's worth practising curve balls because they raise your odds by a lot and we've got a whole month with Kyogre. It's not the first legendary to feel difficult until we get used to it.