August 2023 is another very exciting month for Pokemon GO Raids, with the return of Primal Pokemon and the debut of Mega Rayquaza, alongside plenty more Legendary and Mega Raid bosses!

These are all of the Pokemon that will be Legendary, Mega, or Primal Raid bosses in August 2023 and what dates they will be in Raids:

August 2023 Pokemon GO Legendary, Mega & Primal Raid Bosses & Dates

DateFeatured PokemonShiny Available?
July 25 – August 4Regidrago
Regidrago Pokemon GO
No
July 25 – August 4Mega Tyranitar
Mega Tyranitar Pokemon GO
Yes
Shiny Tyranitar Pokemon GO
August 4-16Cresselia
Cresselia Pokemon GO
Yes
Shiny Cresselia Pokemon GO
August 4-16Mega Gyarados
Mega Gyarados Pokemon GO
Yes
Shiny Gyarados Pokemon GO
August 16- 23
August 27 – September 1
Xerneas
Xerneas Pokemon GO

Yes
Shiny Xerneas Pokemon GO
August 16- 23
August 27 – September 1
Yveltal
(Knows Oblivion Wing)
Yveltal Pokemon GO
Yes
Shiny Yveltal Pokemon GO
August 16- 23
August 27 – September 1
Mega Salamence
Mega Salamence Pokemon GO
Yes
Shiny Salamence Pokemon GO
August 23-26
August 26 (10 AM – 6 PM)
August 27 (10 AM – 11 AM)
Primal Kyogre
Primal Kyogre Pokemon GO
Yes
Shiony Kyogre Pokemon GO
August 23-26

During Pokemon GO Fest Global:
August 26 (10 AM – 6 PM)
August 27 (10 AM – 11 AM)
Primal Groudon
Primal Groudon Pokemon GO
Yes
Shiny Groudon Pokemon GO
During Pokemon GO Fest Global:
August 27 (11 AM – 6 PM)
Mega Rayquaza
Mega Rayquaza Pokemon GO
Yes
Shiny Rayquaza Pokemon GO
The Raid rotation in Pokemon GO changes at 10 AM local time. These Pokemon will rotate in and out of Raids at this time unless specified otherwise).

The fact that all of these Pokemon, apart from Regidrago, have shiny versions available in Pokemon GO is excellent news for shiny hunters. The odds of getting shiny Legendaries from Raids is 1 in 20, while the odds of encountering a shiny Pokemon after winning a Mega Raid is 1 in 64.

All August 2023 Raids Pokemon GO

It is also worth noting that Mega Rayquaza will only be in Raids worldwide on Sunday, August 27, during the Pokemon GO Fest: Global event. However, it will also be available to battle during the in-person London, Osaka, and New York GO Fest events, earlier in the month.

author
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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