Warmer months: May–September
- The château stays open until 6pm from May 21 to September 21, so you get a little more breathing room in the day.
- Outdoor courtyards, the moat and the wider enclosure are easier to enjoy when the weather is mild.
- There’s no verified summer queue range, so don’t plan around assumed long waits.
- Extreme-heat alerts can lead to earlier closing, so it’s worth checking the latest schedule on very hot days.
Best approach: Go near opening time. You’ll have more flexibility to see the Sainte-Chapelle before its midday closure and still have time for the keep.


