List of Raid Bosses changes/2019

This page is the list of changes of Raid Bosses occurred in 2019.

In this year, Palkia, Dialga, Giratina Origin Forme, Uxie, Mesprit, Azelf, Armored Mewtwo, Darkrai and Cobalion were introduced. Defense and Speed Forme Deoxys and Regigigas were new to EX Raid Battle. Later, all forms of Deoxys became available in normal Raid Battles.

January 3rd
The raid pool changed after Holiday 2018. Mainly the types of tier 1 to 4 Raid Bosses are strong against Heatran. Breloom was previously a tier 3 Raid Boss.

January 15th
The Hoenn Celebration 2019 changed Raid Bosses to Hoenn Pokémon, highlight shiny Kyogre and Groudon. Region-exclusive Pokémon Lunatone and Solrock appeared in raids all over the world.

January 29th
Palkia became available. Mainly the types of tier 1 to 4 Raid Bosses are strong against Palkia.

February 13th
The Valentine's Day 2019 featured pink-colored Raid Bosses.

February 22nd
Raid Bosses returned to previous layout of Palkia after Valentine's Day. In addition, Latias returned in Special Raid Week until March 1st.

February 26th
The Pokémon Day 2019 featured Kanto Raid Bosses.

March 1st
Dialga became available. Mainly the types of tier 1 to 4 Raid Bosses are strong against Dialga. During first few hours, Palkia still appeared in raid.

March 15th
Rayquaza returned in Special Raid Weekend until March 18th without shiny variant.

March 19th
The Equinox 2019 featured Grass-type Raid Bosses. Breloom changed back to a tier 3 Raid Boss. At the start of the event, Kanto Marowak was mistakenly used as a tier 4 Raid Boss.

March 27th
Raid Bosses returned to previous layout of Dialga after Equinox. Deoxys Defense Forme started to appear in EX Raid Battle, which was announced earlier.

March 28th
Giratina Altered Forme returned. Mainly the types of tier 1 to 4 Raid Bosses are strong against Giratina.

April 2nd
Giratina Origin Forme became available along with the start of Bug Out featuring Bug-type Raid Bosses.

April 10th
Raid Bosses returned to previous layout of Giratina after Bug Out, with Origin Forme this time. Shiny Bagon was released on April 13th Community Day.

April 15th
Latios returned in Special Raid Week until April 22nd.

April 20th
Shuckle was added to tier 3 during Pokémon GO Safari Zone in Sentosa.

April 22nd
Shuckle left.

April 23rd
Latios left.

April 29th
Groudon became available along with the start of Earth Day 2019 featuring Ground-type Raid Bosses.

May 2nd
The Lake Guardians were available as regional Raid Bosses, with Uxie in Asia-Pacific region, Mesprit in Europe, Middle East, Africa and India, and Azelf in Americas and Greenland. Mainly the types of tier 1 to 4 Raid Bosses are strong against the Lake Guardians.

May 7th
The Detective Pikachu Celebration included select Pokémon featured in the movie in Raid Battles.

May 18th
Raid Bosses returned to previous layout of Lake Guardians after Detective Pikachu Celebration.

May 21st
The Extraordinary Raid Week featured new special Raid Bosses. Feebas was previously a tier 1 Raid Boss.

May 27th
Cresselia returned with shiny variant available.

May 29th
After the end of Extraordinary Raid Week, tier 1 to 4 Raid Bosses changed and mainly their types are strong against Cresselia.

June 4th
The Adventure Week 2019 featured Rock-type Raid Bosses. Region-exclusive Pokémon Lunatone only appeared in Europe, Asia and Australia, and Solrock only appeared in the Americas and Africa, just like their distribution in wild at that time.

June 12th
Raid Bosses returned to previous layout of Cresselia after Adventure Week.

June 18th
Kyogre returned with shiny variant available. Mainly the types of tier 1 to 4 Raid Bosses are strong against Kyogre.

June 27th
Groudon returned with shiny variant available. Mainly the types of tier 1 to 4 Raid Bosses are strong against Groudon.

July 1st
Deoxys Speed Forme started to appear in EX Raid Battle, which was announced earlier.

July 4th
New Raid Bosses appeared when the Dortmund Pokémon GO Fest 2019 started.

July 8th
Raid Bosses returned to previous layout of Groudon after Dortmund GO Fest.

July 10th
Armored Mewtwo was introduced. Mainly the types of tier 1 to 4 Raid Bosses are strong against Mewtwo.

July 25th
The Team GO Rocket Disruption featured Raid Bosses related to the Team GO Rocket.

July 31st
Rayquaza returned with shiny variant available. Mainly the types of tier 1 to 4 Raid Bosses are strong against Rayquaza. Granbull was previously a tier 3 Raid Boss.

August 6th
New Raid Bosses appeared when the Yokohama Pokémon GO Fest 2019 started.

August 13th
Raid Bosses returned to previous layout of Rayquaza after Yokohama GO Fest.

August 23rd
The Water Festival 2019 featured Water-type Raid Bosses.

August 31st
Raid Bosses returned to previous layout of Rayquaza after Water Festival.

September 2nd
The Johto Journey featured Johto Raid Bosses, including the Legendary Beasts.

September 9th
All forms of Deoxys became available in normal Raid Battles. Mainly the types of tier 1 to 4 Raid Bosses are strong against Deoxys.

September 16th
Mewtwo returned with shiny variant available. The tier 1 Raid Bosses introduced Unova Pokémon. Mainly the types of tier 2 to 4 Raid Bosses are strong against Mewtwo.

September 23rd
Giratina Altered Forme returned with shiny variant available. Mainly the types of tier 1 to 4 Raid Bosses are strong against Giratina. Granbull was changed back to tier 3.

October 5th
Mewtwo with Shadow Ball returned to EX Raid Battle.

October 17th
The Halloween 2019 featured Ghost- and Dark-type Raid Bosses, also featuring costumed Kanto Starters and the debut of Darkrai. Misdreavus and Umbreon were previously a tier 2 and 3 Raid Boss respectively.

November 1st
A Colossal Discovery featured Legendary Titans and other Ice-, Rock-, and Steel-type Raid Bosses. Lileep and Anorith were previously a tier 1 Raid Boss.

November 4th
Cobalion became available, which became the first Unova region Legendary Pokémon in the game. Mainly the types of tier 1 to 4 Raid Bosses are strong against Cobalion. Quilava was previously a tier 1 Raid Boss.

November 7th
The Team GO Rocket Leaders Disruption featured Raid Bosses related to the Team GO Rocket.

November 14th
Raid Bosses returned to previous layout of Cobalion after Team GO Rocket Leaders Disruption.

November 17th
Galarian Weezing joined tier 4 raids one day after its debut on November 2019 Community Day.

November 18th
Regigigas started to appear in EX Raid Battle.

November 19th
The Supereffective Week featured the largest number of Raid Bosses, including 16 tier 3 Raid Bosses.