SeasonMapSwitzerland in September
September is Switzerland's 8th-best month (rank 8 of 12): its 17 destinations average 61/100, led by Basel at 91 — 22°C and 10 rainy days — while St. Moritz is cooler at 13°C and scores 36.
#8 of 12 months for Switzerland · 17 destinations · updated September 2026 · climate normals from ERA5 reanalysis
Where in Switzerland in September
| # | Place | Type | Feels-like high | Rain | Comfort | At its best |
|---|---|---|---|---|---|---|
| 1 | Basel | City | 22°C | 79 mm · 10 days | 91 tier S | Yes |
| 2 | Montreux | City | 22°C | 110 mm · 13 days | 87 tier A | Yes |
| 3 | Geneva | City | 22°C | 103 mm · 11 days | 86 tier A | Yes |
| 4 | Interlaken | Trekking hub | 22°C | 142 mm · 14 days | 86 tier A | Yes |
| 5 | Bern | City | 20°C | 64 mm · 10 days | 85 tier A | — |
| 6 | Grindelwald | Trekking hub | 19°C | 174 mm · 15 days | 85 tier A | Yes |
| 7 | Lausanne | City | 20°C | 90 mm · 11 days | 85 tier A | — |
| 8 | Lucerne | City | 21°C | 138 mm · 15 days | 85 tier A | Yes |
| 9 | Zürich | City | 20°C | 97 mm · 12 days | 85 tier A | Yes |
| 10 | Lugano | City | 23°C | 154 mm · 12 days | 84 tier A | Yes |
| 11 | St. Moritz | Ski resort | 13°C | 113 mm · 13 days | 36 tier F | — |
| 12 | Davos | Ski resort | 16°C | 118 mm · 14 days | 30 tier F | — |
| 13 | Verbier | Ski resort | 16°C | 84 mm · 13 days | 28 tier F | — |
| 14 | Zermatt | Ski resort | 17°C | 120 mm · 17 days | 27 tier F | — |
| 15 | Laax | Ski resort | 18°C | 144 mm · 14 days | 23 tier F | — |
| 16 | Engelberg | Ski resort | 17°C | 137 mm · 14 days | 21 tier F | — |
| 17 | Gstaad | Ski resort | 19°C | 120 mm · 14 days | 20 tier F | — |
Comfort is SeasonMap's 0–100 score; each place is judged through the lens that suits it — beaches on beach weather, ski resorts on snow. "At its best" means September is one of that place's own top three months. Feels-like highs fold in humidity, wind and sun.
What's on in Switzerland in September
- Tell open-air theatre · Interlaken · 25 Jul – 5 Sep
- Jungfrau Marathon · Interlaken · 5 Sep
- Knabenschiessen · Zürich · 12–14 Sep
- Menuhin Festival · Gstaad · 15 Jul – 5 Sep (usually)
- Country Night Gstaad · Gstaad · 8–16 Sep (usually)
- Athletissima · Lausanne · 1 Jul – 5 Sep (usually)
- Lucerne Festival · Lucerne · 10 Aug – 15 Sep (usually)