SeasonMapMontreux weather by month
Switzerland
The best time to visit Montreux is June, August and September — 87/100 in August, 25°C and 14 rainy days. The best season is summer, June to August (84/100 on average).
The worst month is January at 47/100 — cold, rainy, clean air. See January →
Updated September 2026 · climate normals from ERA5 reanalysis
Planning the wider trip? Best time to visit Switzerland →
Montreux, month by month
Comfort score out of 100 for the kind of trip Montreux is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
| Month | Score | Tier | High | Rain | Sun | Crowds | On |
|---|---|---|---|---|---|---|---|
| JanJanuary | 47 | F | 6°C | 15 d | 6 h | Busy | — |
| FebFebruary | 60 | C | 7°C | 12 d | 7 h | Shoulder | — |
| MarMarch | 67 | C | 11°C | 15 d | 9 h | Shoulder | — |
| AprApril | 76 | B | 14°C | 14 d | 11 h | Busy | — |
| MayMay | 75 | B | 18°C | 19 d | 11 h | Busy | 1 |
| JunJune | 85 | A | 23°C | 17 d | 12 h | Busy | 3 |
| JulJuly | 81 | A | 25°C | 17 d | 12 h | Peak | 3 |
| AugAugust | 87 | A | 25°C | 14 d | 11 h | Busy | 2 |
| SepSeptember | 84 | A | 20°C | 14 d | 9 h | Busy | 3 |
| OctOctober | 72 | B | 15°C | 13 d | 8 h | Busy | 2 |
| NovNovember | 58 | D | 10°C | 14 d | 6 h | Busy | 1 |
| DecDecember | 49 | F | 7°C | 14 d | 5 h | Peak | 1 |
What's on in Montreux through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
- May
- Narcissus on the slopes15 May – 10 Jun (usually)Nature
- June
- Lake swimming season20 Jun – 15 Sep (usually)Season
- Rochers-de-Naye walking season20 Jun – 15 Oct (usually)Season
- July
- Montreux Jazz Festival3–18 JulFestival
- September
- Lavaux grape harvest15 Sep – 15 Oct (usually)Season
- November
- Montreux Noel20 Nov – 24 DecFestival
Crowds in Montreux in August
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusySummer holidays in Switzerland, school holidays in 7 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Good to know before you go to Montreux
Real experiences from travellers' own write-ups, quoted with a link to the original.
Visas & entry
A first-hand tip for the train ride from Geneva to Montreux: sit on the right-hand side of the carriage for the best views of Lake Geneva along the way, rather than leaving it to chance once boarded. For the Montreux Jazz Festival in July, their advice was that most of the festival grounds along the lakeside promenade are free to wander, with paid tickets only required for the two biggest concert halls, so a festival visit doesn't have to mean an expensive one.