The Butte aux Cailles swimming pool, located in the 13th arrondissement of Paris, has hours that vary from week to week. Understanding the actual functioning of these time slots, and especially the rules for welcoming and evacuating by pool, allows for a more accurate measure of effective swimming time rather than relying on a theoretical closing time.
Actual swimming time by pool: the gap between posted hours and actual access
The closing time indicated on the paris.fr sheet does not correspond to the time of the last swim. The reception of the last swimmers stops 45 minutes before closing, regardless of the pool. The evacuation, on the other hand, depends on the type of pool.
| Pool | Last reception of swimmers | Start of evacuation |
|---|---|---|
| Outdoor pool (Nordic) | 45 min before closing | 45 min before closing |
| Indoor pool | 45 min before closing | 30 min before closing |
On a public slot that ends at 7 PM, the Nordic pool no longer welcomes anyone from 6:15 PM, and evacuation begins at the same time. The indoor pool offers an additional quarter of an hour before swimmers are asked to exit the water.
This 15-minute difference between the two pools impacts the choice of time slot. Those arriving at 6 PM thinking they have an hour to swim in the outdoor pool will actually swim for only a quarter of an hour at best. To check the crowd levels and hours of the Butte aux Cailles pool in real-time, it’s best to verify before heading out.
Variable weekly schedule: why the fixed grid is no longer sufficient
Since the 2025-2026 season, the Butte aux Cailles pool operates on a schedule that can change from week to week. School and community time slots occupy part of the pools at different times depending on the day, and these reservations do not follow the same pattern each week.
Three factors regularly modify the schedule:
- Time slots reserved for schools and clubs, which block one or more pools during variable time periods
- Technical closures for maintenance, sometimes announced only a few days in advance
- Seasonal adjustments, particularly the heatwave plan that modifies the opening hours of the outdoor pool in summer
The standard grid displayed on the City of Paris website serves as a general reference, but the weekly PDF of detailed hours remains the only reliable source. Several sources recommend checking it directly on the paris.fr sheet before each visit.
A SMS alert service also exists: the City of Paris sends a notification in case of unexpected pool closures. Registration is done online on the paris.fr site.
Crowd levels at the Butte aux Cailles pool: quiet slots and peak times
The busiest time slot is between 12 PM and 2 PM, where the waiting line can exceed thirty minutes. This peak corresponds to the lunch break for workers in the area and students from the Tolbiac zone.
In contrast, morning openings and late afternoon slots show significantly lower crowd levels. The early morning hours on weekdays offer a swimming experience unmatched by the midday slot.
How the type of pool affects crowd levels
The Nordic pool attracts demand as soon as the nice weather arrives. Its outdoor nature and heated temperature make it particularly appealing to Parisians, creating an imbalance in attendance between the two pools.
The indoor pool remains more accessible in terms of available spots, even during midday slots. For those primarily looking to swim without waiting, the indoor pool in the early morning remains the least crowded slot.
Closures and maintenance: periods to anticipate
The Butte aux Cailles pool closes for regular maintenance operations, as well as on public holidays. These occasional closures do not always follow the same calendar from year to year.
- Major maintenance work usually occurs outside the summer season, but technical closures of a few days can happen at any time
- Public holidays result in total closures or reduced hours, depending on the City of Paris’s policy for the relevant period
- The outdoor pool can close independently of the indoor pool, particularly for weather or technical reasons
The SMS alert mentioned above also covers these unexpected closures. Signing up prevents unnecessary trips, especially for swimmers coming from another arrondissement or the suburbs.
Access by transport: metro and bus lines
The pool is located near the Place d’Italie metro station (lines 5, 6, and 7) and the Corvisart station (line 6). Several bus lines also serve the area. Expect about ten minutes on foot from Place d’Italie to reach the entrance of the pool on rue Butte aux Cailles.
The key takeaway for planning a visit can be summed up in one sentence: the posted closing time is not the last swimming time, and the schedule can change each week. Checking the weekly PDF on paris.fr and signing up for SMS alerts are the two habits that prevent finding a closed door or a crowded pool.