Pokemon Gois hosting another one of their Egg-focused Hatch Days this month, this time featuringCleffa, the pre-evolution of Clefairy. In addition to this Hatch Day possessing the typical bonuses for this type of event, there will beextended bonuses active in the days leading up to this event.

That being said, the main Cleffa Hatch Day Event will only be active for three hours, taking place onSunday, July 29, 2025, from 2pm local time to 5pm local time.Below you can find all details regarding this Hatch Day event, as well as bonuses that will be available in the days leading up to it.

Image of Cleffa from Pokemon with the Pokemon Go battlefield as the background

Cleffawill be the featured Pokemon for this Hatch Day, the Fairy-type Pokemon from the franchise’s second generation.

During the three hours of this Hatch Day, yourchances of hatching Cleffa from2 km Eggswill be greatly increased.That being said, although you will have a significantly higher chance of hatching Cleffa from these Eggs, it will still be possible to hatch the other Pokemon that are also in the 2 km Egg pool.

Image of Cleffa from Pokemon in a flowery field surround by Pokemon Go Eggs

The easiest way to obtain different 2 km Eggs is tospin different PokeStops in Pokemon Go.

With Cleffa being the featured Pokemon for this Hatch Day, Cleffa hatched from Eggs during this Hatch Day will havesignificantly higher odds of being Shiny.verify to acquire and hatch as many 2 km Eggs as you may during this limited-time event, giving you great odds of obtaining a Shiny Cleffa.

Professor Willow with Pikachu on his shoulder, with Mew and the Pokemon Go logo on the right.

To maximize your chances of obtaining a Shiny Cleffa during this event, make sure you aremoving around and traveling distance during this Hatch Day.

This will allow you to constantly hatch and obtain new Eggs throughout this event.

Several different Pokemon Go Eggs and Incubators, with the Pokemon Go logo above.

Hatch Day Bonuses

During this three-hour Hatch Day, there will betwo Egg-themed bonusesavailable to all players. Fitting the focus of this event, these two bonuses will allow you to acquire and hatch more Eggs, as well as improve the rewards for doing so. These two Cleffa Hatch Day bonuses include:

Hatch Day Research

Free Event Timed Research

At the start of this Hatch Day, you will be granted access toevent Timed Research, free for all playerswho log in and play during the three hours of this event. Completing the different requirements for this Timed Research will provide you with aSuper Incubator and XP.

You willonly have until the end of Cleffa Hatch Dayto complete this Timed Research.

After 5pm local time on the day of the event, you will no longer be able to complete tasks or claim rewards from this Timed Research.

There will also be anadditional Timed Researchavailable to complete during this Hatch Day, this one costing$1.00 USDat the Pokemon Go in-game shop. To complete this Timed Research, you will berequired to travel 2 km in Pokemon Go and hatch an Egg, rewarding you with aStar Piece, Super Incubator, and XP.

Additionally, those who purchase this Paid Timed Research will benefit from an extra bonus throughout Cleffa Hatch Day. Ticket-holders will receivetwice theStardustfrom hatching Eggs throughout this event.

Like the free Timed Research, you will have to complete this Timed Researchbefore Cleffa Hatch Day concludes.

Make sure you are completing all tasks for this Timed Research prior to the end of this event to ensure that you get the maximum value for your purchase.

Extended Event Bonuses And Features

Unique to this Hatch Day, there will beadditional bonuses available to all players, extending outside the main Cleffa Hatch Day event.These extended bonuses will be available to all playersfrom Friday, June 25, 2025, at 10am local time to Sunday, June 27, 2025, at 5pm local time.

The first extended bonus will allow you to hatch more Eggs while it is active,reducing the hatch distance of all Eggs placed in Incubators during this window to half.This will not only allow you to quickly hatch different Eggs, but will also allow you to quickly free up more space for you to acquire new Eggs.

Use this bonus tostock up on 2 km Eggs in the days leading up to this event.

This will help to ensure that you are hatching as many Cleffa as possible during the main Hatch Day event.

For the second extended bonus, there will beevent-themed Field Research Tasksavailable to claim at PokeStops before and during the Cleffa Hatch Day. Completing these Field Research Tasks will reward you withXP and Stardust.