A conclave is a scheduling event before it is anything else. It closes one room, suspends two kinds of tours, and leaves the rest of the Vatican Museums running more or less as normal. That split, chapel closed, museums open, is easy to miss if you are booking a visit from abroad and only see headlines about the pope. Here is how it actually worked the last time it happened, in April and May 2025, and what to expect if you are holding a ticket dated near a future one.
Sede vacante, defined in practical terms
Sede vacante, “the seat being vacant,” is the formal name for the period between one pope’s death or resignation and the election of the next. Cardinals under eighty gather in Rome, and once assembled they are sealed into the Sistine Chapel for the vote itself, the conclave proper. The word conclave comes from the Latin for “with a key,” a reference to locking the electors in until they finish. That locking-in is precisely why the Sistine Chapel becomes unavailable to visitors before the voting starts: the room has to be cleared, prepared and secured days ahead of the cardinals’ arrival.
What closed in 2025, and when
Pope Francis died on 21 April 2025. A notice from the Vatican Museums, dated that same day, is specific about the sequence. First came a one-day closure tied to the funeral: “on Saturday 26 April 2025 the Vatican Museums and the Castel Gandolfo Museum Complex will be closed, as a sign of mourning, for the funeral of the Roman Pontiff Francis.” That was a single day, and the Museums reopened afterward.
The second closure, the one that matters for planning around any future conclave, took effect two days later and lasted much longer. The same notice states: “The Sistine Chapel will be closed to the public from Monday 28 April 2025 for the requirements of the Conclave. All tours of the Vatican Gardens and the Necropolis of the Via Triumphalis are also suspended.” Three products went dark at once: the Sistine Chapel itself, guided Vatican Gardens tours, and the separate Necropolis of the Via Triumphalis tour, the ancient Roman burial ground beneath the Vatican’s parking area — a different site from the Scavi tour of the tomb beneath St Peter’s Basilica itself. None of those three has a fixed reopening date built into the notice. They stay closed for as long as the conclave’s logistics require, which in 2025 covered the setup period, the vote itself on 7 and 8 May, and the days immediately after while the new pope’s arrangements were finalised.
What stayed open
The rest of the Vatican Museums complex did not shut down. Travel and Leisure Asia, covering the period for travellers, reported that “the Vatican Museums will remain open, and other parts, including the Raphael Rooms,” continued to receive visitors while the Sistine Chapel sat closed. That is the core mechanic worth remembering: a conclave takes one room and two tour products offline, not the museum as a whole. Galleries, the Raphael Rooms, the Pinacoteca and the general collection routes kept running for anyone with a valid ticket, minus the final stretch of the standard route that normally ends in the Sistine Chapel.
St Peter’s Square under conclave conditions
Security at St Peter’s Square is not something a conclave invents from scratch. Its standing arrangement is described in plain terms by the Basilica’s own visitor FAQ: “access to the Basilica begins at the security checkpoints operated by the Italian State Police,” positioned in the square’s right hemicycle, facing the facade. That checkpoint runs on an ordinary Tuesday in November too. What changes during a conclave is volume and intensity rather than the basic setup: multiple outlets covering the 2025 conclave described added metal detectors and anti-drone measures around the square as crowds gathered for the white-smoke watch. Those crowd-scale and technology details come from press coverage rather than an official Vatican statement, so treat them as a reasonable expectation rather than a guaranteed checklist. What you can plan around with confidence is a slower, more heavily staffed checkpoint than usual, and a square that fills early on any day a vote is scheduled.
If your ticket lands during a closure
Vatican Museums tickets are governed by a standing policy, not a conclave-specific one, and it is unambiguous. The official pricing and terms page states plainly: “Tickets cannot be refunded.” That rule predates and postdates any conclave; it is the general condition every ticket is sold under. Standard admission is €20 full price, €10 reduced, and Skip the Line tickets booked online carry an additional €5 booking fee on top of the entry price.
What that means concretely: if a Sistine Chapel closure overlaps your dated ticket, the Museums entry itself is very likely still usable for the rest of the route, while the Chapel portion is the part you would miss. We have not found an official Vatican statement laying out a rescheduling process specifically for tickets affected by a conclave-driven Sistine Chapel closure; what exists publicly is a scatter of differing policies from individual ticket vendors, none of them authoritative on the Vatican’s own terms. If you are booking during a period when a conclave looks plausible, the safest move is checking directly with whoever issued your ticket about their own change policy, rather than assuming a blanket refund exists.
Does this pattern repeat every time?
The 2025 sequence, museums open, Sistine Chapel and Gardens tours and Necropolis suspended, is precedent, not a codified rule that guarantees identical treatment in a future sede vacante. It is the clearest real example available, and it lines up with how the Vatican has generally handled solemn periods: close what the ceremony or security requirement demands, keep the rest running for the ordinary flow of visitors and pilgrims. A future conclave could differ in scope depending on how the College of Cardinals and Vatican security offices assess the moment. Treat the 2025 timeline as the best available guide, not a fixed script.
Planning around it
Outside of a sede vacante, the Museums run on their published schedule: Monday to Saturday 08:00 to 20:00 with last entry at 18:00, and the free last-Sunday-of-the-month opening from 09:00 to 14:00 with last entry at 12:30. Regular Sundays are closed, along with a short list of fixed holidays through the year. None of that changes because of a conclave; it only changes because a conclave is actively underway, and even then the closures apply to specific rooms and tour products rather than the whole complex.
A conclave is a rare, short-lived event layered on top of an otherwise ordinary booking calendar, and most visitors will never plan a trip anywhere near one. If you want the full route through the Museums and the Sistine Chapel on a normal day, with entry timed to avoid the worst of the queues, our Vatican tickets and tours page has the current formats and departure times.