Diablo 3 Season 40 Release Date

Diablo 3’s Season 40 revisits a different set of seasonal mechanics from the ARPG’s past between its start and end dates, giving us more reasons to hop back in and slay scores of demonic and angelic foes while we collect powerful gear. Here is everything we know about its release date and content.

With Diablo 4 absorbing the bulk of Blizzard’s resources, the third entry in the series (first released in 2012) trudges along, giving its dedicated community regular opportunities to revisit some of its best content from previous years.

Diablo 3’s Season 40 release date has yet to be unveiled by Blizzard, but we can try our hand at estimating when it might go live by looking at its predecessors’ start and end dates.

Detail	Information
Diablo 3 Season 40 Start Date	early October 2026
Diablo 3 Season 40 End Date	January/February 2027

Diablo 3 seasons usually last for approximately three months. They generally start on Fridays and conclude on Sundays, although we have had exceptions to this rule in the past.

With Season 39, Shades of the Nephalem, going live in late June 2026, we could expect Diablo 3’s Season 40 start date to occur at some point in late September or October 2026. In fact, Season 39 could end around September 27.

If an early October start happens, we estimate that its end date should then be set for January or February 2027, unless Blizzard turns it into a more compact season, surprising us just before the holidays.

Diablo 3 Season 40 Content

Blizzard has yet to reveal Diablo 3’s Season 40 content and rewards. Its seasonal theme will revisit a set of mechanics veterans should already be familiar with while refreshing the pool of available challenges.

New and old cosmetics should also be up for grabs between Diablo 3’s Season 40 start and end dates.

That covers what we know so far about Diablo 3’s Season 40 start and end dates, alongside the content it reintroduces to the ARPG’s live servers. More details should be shared over the coming months.

FAQ

Is Diablo 3’s Season 40 available now?

No, but it will follow Season 39, which kicked off on June 26, 2026.

How do I access Diablo 3 Season 40?

Once it’s live, you just need to create a fresh seasonal character. It will automatically be assigned to the seasonal realm, granting access to all of the mechanics and rewards included.

Does Diablo 3 Season 40 have a release date?

Diablo 3’s Season 40 has yet to lock in its start and end dates, as of August 20, 2026. Expect updates in the coming weeks.