Pokemon GO’s latest event, Noxious Swamp, is all about Poison and Dragon-type Pokemon – here’s everything you need to know about it!

The Noxious Swamp event will have Poison and Dragon-types spawning in the wild, available to battle in Raids, and as rewards from completing Research. Plus, there are some great event bonuses too!

Pokemon GO Noxious Swamp Date & Time

The Pokemon GO Noxious Swamp event starts at 10 AM local time on Saturday, August 19, and ends at 8 PM local time on Tuesday, August 22, 2023.

  • Starts:
  • Ends:

This gives players four days of Pokemon GO to experience everything the event has to offer.

Noxious Swamp Event Bonuses

  • 2x Catch Candy
  • Team GO Rocket balloons appear more frequently
  • One additional free Raid Pass per day from spinning Gym Photo Discs
Team GO Rocket Balloon Pokemon GO

Wild Spawns

The following Pokemon will be spawning in the wild during the Noxious Swamp event:

  • Axew
  • Dratini
  • Gulpin
  • Noibat
  • Skrelp
  • Skorupi
  • Surskit
  • Tentacool
  • Tyrunt
  • Venonat
  • Zubat

If you’re lucky, you may also catch the shiny version of each of these wild Pokemon. This even includes the brand-new shiny Skrelp!

Pokemon GO Dratini

Raid Bosses

The following Raid bosses will be available to battle during the Noxious Swamp event:

  • 1-Star
    • Grimer
    • Alolan Grimer
    • Hisuian Qwilfish
    • Hisuian Sneasel
  • 3-Star
    • Galarian Weezing
    • Druddigon
    • Turtonator
  • 4-Star
    • Mega Salamence
  • 5-Star
    • Xerneas
    • Yveltal
Pokemon GO Xerneas Yveltal

Shadow Raid Bosses

The Noxious Swamp event will also feature Shadow Raids with the following bosses:

  • 1-Star
    • Shadow Zubat
    • Shadow Houndour
    • Shadow Pidove
  • 3-Star
    • Shadow Nidoran
    • Shadow Onix
    • Shadow Sneasel
Shadow Sneasel in Pokemon GO


The Noxious Swamp event will have free Timed Research for all Pokemon GO players, with one of the rewards being an encounter with the rare Pokemon Jangmo-o.

Plus, there will be a new selection of Field Research Tasks for players to collect and complete. To go with the events theme, the rewards for these Field Research Tasks will be encounters with Dragon and Poison-type Pokemon such as Grimer, Skrelp, Noibat, and Mareanie.

Pokemon GO Jangmo-o Trailer
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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