how to find that raid pokemon is shiny pokemon go

You can’t tell a raid boss is shiny from the raid lobby in Pokémon GO; the boss only reveals its shiny form after the raid, on the catch screen.

How to check

• Finish the raid and enter the bonus encounter.
• Look for the shiny sparkle effect, stars, and the shiny icon on the encounter screen.

• If it is shiny, you can catch it from that encounter; raid shinies have guaranteed catch behavior once you’re on the catch screen with Premier Balls.

What to know

• Raid bosses do not appear shiny in the overworld or raid menu.

• Legendary raid bosses are commonly cited at about 1 in 20 shiny odds, and Mega raids at about 1 in 64, while special raid events can have better odds.

• The most reliable way to know whether a raid boss can be shiny is to check the in-game news or event announcements for that Pokémon’s shiny availability.

Fast tip

A quick “shiny check” means entering the encounter, looking for the shiny indicators, and moving on if it is not shiny.

TL;DR: You cannot know before finishing the raid; you only find out on the post-raid encounter screen.