Hot days: all cantons compared
Hot days 2025: the lowest value is in the canton of Schwyz (7.3 days per year), the highest in the canton of Geneva (36 days per year). The full ranking of the 22 cantons with measurements:
Tap a canton.
Days per year with a maximum of 30 °C or more, mean of the canton’s weather stations below 800 m. Lower means fewer hot days. (Source: MeteoSwiss)
| # | Canton | Value | Year |
|---|---|---|---|
| 1 | Schwyz | 7.3 days per year | 2025 |
| 2 | Uri | 10 days per year | 2025 |
| 3 | St. Gallen | 10.6 days per year | 2025 |
| 4 | Thurgau | 11 days per year | 2025 |
| 5 | Fribourg | 12 days per year | 2025 |
| 6 | Glarus | 13 days per year | 2025 |
| 7 | Lucerne | 13.5 days per year | 2025 |
| 8 | Obwalden | 14 days per year | 2025 |
| 9 | Bern | 14.2 days per year | 2025 |
| 10 | Jura | 14.5 days per year | 2025 |
| 11 | Zurich | 15 days per year | 2025 |
| 12 | Schaffhausen | 16 days per year | 2025 |
| 13 | Zug | 16 days per year | 2025 |
| 14 | Basel-Landschaft | 17.5 days per year | 2025 |
| 15 | Grisons | 18.5 days per year | 2025 |
| 16 | Solothurn | 19 days per year | 2025 |
| 17 | Vaud | 19.6 days per year | 2025 |
| 18 | Aargau | 20.8 days per year | 2025 |
| 19 | Neuchâtel | 21.5 days per year | 2025 |
| 20 | Valais | 25.3 days per year | 2025 |
| 21 | Ticino | 29.3 days per year | 2025 |
| 22 | Geneva | 36 days per year | 2025 |
🔍 Verify this figure
| Official source | MeteoSwiss |
| Dataset (archive) | data/climate/climate-days-cantons.json · manifest |
| SHA-256 checksum | 95b864d5ca0e0638813a7dfe… |
| Archive release (immutable) | SLI-2026-10-12.15 |
License: CC BY 4.0 (compilation); underlying figures remain subject to the source’s terms.
Frequently asked questions
Which canton has the lowest Hot days?
The canton of Schwyz, at 7.3 days per year.
Which canton has the highest Hot days?
The canton of Geneva, at 36 days per year.