October 2023 is another exciting month for Pokemon GO Raids – this month’s schedule includes a trio of Legendary Pokemon, the return of a gluttonous Ultra Beast, a terrifying Mythical Pokemon, and plenty of spooky Mega Pokemon!
These are all of the Pokemon that will be 4-Star and 5-Star Raid bosses in October 2023 and what dates that you can battle them:
October 2023 Pokemon GO Legendary & Mega Raid Bosses & Dates
| Date | Raid Type | Featured Pokemon | Shinies Available? |
| September 16 – October 6 | 4-Star | Mega Gardevoir | Yes |
| September 23 – October 6 | 5-Star | •Raikou •Entei  •Suicune  | Yes   |
| October 6 – October 20 | 4-Star | Mega Gengar | Yes |
| October 6 – October 20 | 5-Star | Guzzlord | Yes |
| October 20 – November 3 | 4-Star | Mega Banette | Yes |
| October 20 – November 3 | 5-Star | Darkrai | Yes![Shiny Darkrai Pokemon GO]](https://gamingintel.com/wp-content/uploads/2023/09/Shiny-Darkrai-Pokemon-GO.png) |
| Every Weekend in October | 5-Star Shadow Raid | Shadow Moltres | Not Available |
Every one of the standard Raid bosses this month can be shiny, which is excellent news for shiny hunters. However, the shiny version of Shadow Moltres has not yet come to Pokemon GO.
Also, if you are after any of the 5-Star Raid bosses, the best time to catch them is during the October 2023 Pokemon GO Raid Hours. This is because the number of Tier 5 Raids is greatly increased during these events.
Each of the 5-Star Raid bosses will be the featured Pokemon in at least one Raid Hour event this month!