Married at First Sight UK (MAFS UK) 2025 is set to air on E4 from Sunday 21 September 2025 at 9pm, with episodes then running across multiple nights each week into mid‑November. The series ends with a main finale on Wednesday 12 November 2025, followed by a two‑part reunion on Thursday 13 and Friday 14 November.

Quick Scoop

  • Start date 2025: MAFS UK 2025 has a confirmed premiere on Sunday 21 September 2025 at 9pm on E4.
  • Usual days on TV: The 2025 series mainly airs Sunday to Wednesday at 9pm, with some weeks extended to Thursday or Friday for extra episodes and reunions.
  • Finale and reunion: The core series finishes on Wednesday 12 November 2025, with reunion specials on 13 and 14 November.

When It’s On Each Week

  • Early in the run, episodes follow the familiar multi‑night pattern across the week, giving viewers several nights of drama in a row.
  • Later in the season, the schedule gets a “shake‑up”, adding extra evening episodes and a nightly run leading into the finale and reunion block in November.

How Long MAFS UK 2025 Runs

  • The 2025 season spans roughly nine weeks from the late‑September launch through to the mid‑November finale and reunions.
  • Across that run, viewers can expect dozens of episodes covering weddings, dinner parties, commitment ceremonies, homestays, and the final reunion fallout.

Forum / Fan Chat Vibe

“MAFS UK basically owns autumn TV now – you blink and suddenly you’re in week seven still arguing about who should have stayed together.”

  • Fans on social media and forums typically plan watch‑alongs from the September launch, with group chats and live‑comment threads running on episode nights.
  • The late‑season schedule tweaks (extra episodes, nightly runs, extended reunions) usually become mini talking points themselves, as people re‑jig their evening plans to keep up.

TL;DR: If you’re searching “when is MAFS UK on 2025”, circle Sunday 21 September 2025 at 9pm for the premiere, then expect it most nights Sunday–Wednesday at 9pm through to the finale on 12 November and reunion specials on 13–14 November.

Information gathered from public forums or data available on the internet and portrayed here.