Every month, Pokemon GO has a new selection of Mega and Legendary Raid bosses to battle, and May 2023 looks to be pretty exciting!

This month features the debut of a brand-new Mega Pokemon, a new shiny Legendary, and the return of some fan-favorite Bug-types as Raid bosses!

The following Mega and Legendary Pokemon will be available to battle in Tier 4 or Tier 5 Raids at certain points during May 2023:

If you want to catch any of the Legendary Pokemon in Raids, the best time will be during the May 2023 Pokemon GO Raid Hours. Each Legendary Pokemon gets at least one Raid Hour, where Raids featuring it will be much more frequent!

Refer to the table below to find out the dates that these Mega and Legendary ‘Mon will be in Raids as well as whether you will be able to catch the shiny version.

Pokemon GO 4-Star & 5-Star Raid Dates in May 2023

Raid BossDates in RaidsShiny Available?Raid Difficulty
Tapu Bulu
Tapu Bulu Pokemon GO
April 17 – May 2Yes5-Star
Mega Slowbro
Pokemon GO Mega Slowbro
April 17 – May 2Yes4-Star
(Shock Drive)
Genesect Pokemon GO
May 2 – May 9Yes5-Star
Mega Scizor
Mega Scizor Pokemon GO
May 2 – May 11Yes4-Star
Tapu Fini
Tapu Fini Pokemon GO
May 9 – May 24Yes5-Star
Mega Pinsir
Mega Pinsir Pokemon GO
May 11 – May 24Yes4-Star
Regigigas Pokemon GO
May 24 – June 1Yes5-Star
Mega Altaria
Mega Altaria Pokemon GO
May 24 – June 1Yes4-Star

Of course, even if the shiny version is available, you will still need to be lucky to encounter one. The exact odds of catching shiny Legendaries in Pokemon GO is 5%, or 1 in 20!

In addition to these Mega and Legendary Pokemon GO Raids, Regidrago will also be returning to Elite Raids in May 2023! Here is how to beat Regidrago in Pokemon GO so you can catch this ultra-rare Legendary!

Senior Staff Writer
Django grew up with a PlayStation controller in his hands and loves all kinds of games, from Football Manager to Yakuza.
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