The Pokémon GO Winter Holiday 2023 Part 1 will take place from Monday, December 18th, 2023, at 10:00 a.m. to Monday, December 25th, 2023, at 10:00 a.m. local time. Cetoddle and its Evolution, Cetitan, the Terra Whale Pokémon will make their Pokémon GO debuts!

Celebrate the season—Cetoddle, Cetitan, and more are coming to Pokémon GO!

Trainers,
Celebrate the season with the Pokémon GO debut of the Terra Whale Pokémon, Cetoddle and Cetitan! You’ll also encounter some familiar festive faces during the wintery fun, and don’t forget to deck the halls with new avatar items and stickers. Additional revelry includes updated winter-themed Postcard Book backgrounds, a sprinkling of snow on the in-game map, and the Pokémon GO debuts of Pikachu wearing holiday attire and Raichu wearing holiday attire!

Winter Holiday Part 1

Monday, December 18, 2023, at 10:00 a.m. to Monday, December 25, 2023, at 10:00 a.m. local time

Pokémon debuts

Cetoddle and its Evolution, Cetitan—the Terra Whale Pokémon—will make their Pokémon GO debuts!


New costumed Pokémon will appear during this event!


You can use 50 Cetoddle Candy to evolve Cetoddle into Cetitan

: If you’re lucky, you might encounter a Shiny one!

Event Bonuses

: During Winter Holiday Part 1, Trainers can choose the bonus they want to receive for completing Timed Research. You can choose either double XP for catching Pokémon or double Stardust for catching Pokémon.
: Increased XP and Stardust from opening Gifts.

Timed Research: Winter Wishes

Trainers will be able to access free branching Timed Research that grants their bonus-based wish: pick between 2× XP for catching Pokémon or 2× Stardust for catching Pokémon.

The path you choose will determine which bonus and tasks you have for the whole event!

No matter which wish you pick, all Trainers who complete the research will receive items and encounter winter-themed Pokémon. The Timed Research will last throughout both parts of the Winter Holiday event.

Wild encounters

The following Pokémon will appear more frequently in the wild.


Pikachu wearing holiday attire , Alolan Sandshrew , Seel , Eevee wearing a holiday hat , Swinub , Stantler wearing a holiday outfit , Spheal wearing a holiday scarf , Galarian Darumaka , Cryogonal , Bergmite , Cetoddle
Some Trainers might even encounter the following: Sneasel , Piloswine, Amaura
: If you’re lucky, you might encounter a Shiny one!

Raids

The following Pokémon will appear in raids. Pikachu wearing holiday attire will have a greater chance of being a Shiny Pokémon than when found in the wild.


One-Star Raids: Pikachu wearing holiday attire , Alolan Sandshrew , Spheal wearing a holiday scarf , Crabrawler, Cetoddle
Three-Star Raids: Dewgong, Lapras , Stantler wearing a holiday outfit , Glaceon wearing an Undersea Holiday outfit
: If you’re lucky, you might encounter a Shiny one!

Eggs

The following Pokémon will hatch from 2 km Eggs. Eevee wearing a holiday hat hatched from Eggs will have a greater chance of being a Shiny Pokémon than when found in the wild.


Eevee wearing a holiday hat , Smoochum , Galarian Darumaka , Amaura
: If you’re lucky, you might encounter a Shiny one!

Field Research task encounters

The following Pokémon will be available to encounter when you complete certain Field Research tasks!


Pikachu wearing holiday attire , Alolan Sandshrew , Shellder , Jynx , Lapras , Delibird wearing a holiday ribbon , Spheal wearing a holiday scarf , Snover , Glaceon wearing an Undersea holiday outfit , Vanillite, Cubchoo wearing a holiday ribbon , Crabrawler
Complete certain Field Research tasks to earn Mega Energy for the following Pokémon: Mega Abomasnow, Mega Glalie

: If you’re lucky, you might encounter a Shiny one!

New avatar items and stickers

The following avatar items will be available to purchase in the in-game shop during this event, and they will continue to be available after the event ends!

Delibird Onesie
Cetoddle Hat
Holiday Boots
Holiday Gloves
Holiday Sweater with Scarf


You’ll be able to get event-themed stickers by spinning PokéStops, opening Gifts, and purchasing them from the in-game shop.

Prime Gaming avatar item and Partner Research

As part of this year’s collaboration with Prime Gaming, we’re offering Trainers an extra-festive gift!

Amazon Prime members can get the Holiday Sweater with Scarf avatar item via the Prime Gaming website before this item goes live in the in-game shop! This offer is yours to claim starting December 15, 2023, at 10:00 a.m. PST until January 19, 2024, at 10:00 a.m. PST.

For more information, head over to the Prime Gaming Pokémon GO page.

Paid Timed Research

In addition to the Timed Research available to all Trainers, two tickets for additional Timed Research will also be available for purchase during the event.

Ticket 1:
For US$2.00 (or the equivalent pricing tier in your local currency), you’ll be able to access event-exclusive two-part Timed Research.* Purchasing this ticket will grant you Timed Research for both parts of the Winter Holiday event.

Timed Research rewards for Winter Holiday Part 1 include the following.

• Event-themed Pokémon encounters, such as Spheal wearing a holiday scarf, Cryogonal, and the first peek at a new costumed Pokémon—Psyduck wearing holiday attire!
• Two Premium Battle Passes.

Timed Research rewards for Winter Holiday Part 2 include the following.

• Event-themed Pokémon encounters, such as Psyduck wearing holiday attire and Cubchoo wearing a holiday ribbon!
• Two Premium Battle Passes.

Trainers who purchase this ticket during the Winter Holiday Part 2 Timed Research will be able to access the Winter Holiday Part 1 Timed Research as well.

Ticket 2:
For US$5.00 (or the equivalent pricing tier in your local currency), you’ll be able to access event-exclusive Timed Research.*

Complete the research tasks to earn an event-themed avatar pose! Other Timed Research rewards include the following.

• 2× Candy for catching Pokémon.
• Various event-themed Pokémon encounters, such as Pikachu wearing holiday attire and Delibird wearing a holiday ribbon, and an early encounter with a new costumed Pokémon—Psyduck wearing holiday attire!

Trainers can purchase one—or both!—of these tickets. Each ticket features different Timed Research tasks. Tickets can be purchased any time throughout the Winter Holiday event period, and the tasks and rewards for all the Timed Research described above will be available until the expiration date listed below.

* Please note that Timed Research expires. The tasks associated with this Timed Research must be completed and their rewards must be claimed before Sunday, December 31, 2023, at 8:00 p.m. local time.

Trainers will be able to purchase and gift tickets to any of their Pokémon GO friends that they have achieved a Friendship level of Great Friends or higher with. Please note that purchases—including those made for other Trainers—are non-refundable (subject to applicable law and the exceptions set forth in the Terms of Service). Tickets cannot be purchased with PokéCoins.
* Please note that the Timed Research tickets will only be available in the in-game shop until Friday, December 29, 2023, at 8:00 p.m. local time.

PokéStop Showcases

Be on the lookout for Showcases at different PokéStops during the event where you can enter event-themed Pokémon.

Source: https://pokemongolive.com/en/post/winter-holiday-part-1-2023/