When Does Diablo III Season 40 Start?
Blizzard has not announced a start date for Diablo III Season 40 yet. Season 39 (Shades of the Nephalem) went live June 20, 2026, and Diablo III seasons have typically run about three to four months — a pattern that points to a September–October 2026 window. That is an estimate from historical cadence, not an announcement.
What we actually know
- ✅ Season 39 is live — Shades of the Nephalem, since June 20, 2026.
- 📅 Seasons have historically run about three to four months — see the full season history.
- 📣 No official season 40 announcement yet. When Blizzard publishes one, this page updates with the confirmed date.
Bookmark this page — it tracks the current season automatically. For what changed most recently, see the season archive.
⚔️ Recommended Diablo Gear
Hand-picked for Diablo players. Buying through these links supports DiabloBytes at no extra cost to you.
Funko POP! Diablo IV — Treasure Goblin Keychain
The beloved loot-dropping Treasure Goblin as a pocket keychain — a pure sub-$15 impulse pickup.
Razer Naga V2 HyperSpeed
19 programmable side buttons — bind every skill, potion, and town portal. The ARPG mouse.
The Art of Diablo: Volume II
500+ pieces of concept art spanning Diablo IV, Diablo II: Resurrected, and Immortal. The best-reviewed Diablo art book.
As an Amazon Associate, DiabloBytes earns from qualifying purchases.