Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Sion is from July, September, October, but considering flight prices and crowds, the best months to visit are June, September, October. — consistent weather climate
🌦Humid
| Score | 10 | 24 | 31 | 59 | 67 | 74 | 76 | 76 | 78 | 77 | 30 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Cold | Cold | Cold | Cold | Cool & rainy | Humid | Humid | Humid | Humid | Cool & rainy | Cold | Cold |
| Temperature | -1–6°C | 1–9°C | 3–11°C | 5–15°C | 10–19°C | 15–25°C | 17–27°C | 17–27°C | 13–23°C | 9–18°C | 3–11°C | 1–8°C |
| Feels like | -4–3°C | -2–7°C | 0–10°C | 3–14°C | 9–20°C | 15–27°C | 19–30°C | 18–29°C | 13–23°C | 8–18°C | 1–10°C | -3–5°C |
| Precipitation | 148mm 19 days | 95mm 15 days | 133mm 18 days | 96mm 16 days | 175mm 24 days | 131mm 20 days | 112mm 16 days | 113mm 16 days | 92mm 14 days | 103mm 13 days | 124mm 16 days | 150mm 17 days |
| Sunshine | 5.7h ☀︎ 63% | 7.0h ☀︎ 68% | 8.0h ☀︎ 67% | 9.9h ☀︎ 73% | 8.9h ☀︎ 60% | 11.8h ☀︎ 75% | 12.9h ☀︎ 84% | 11.3h ☀︎ 80% | 9.8h ☀︎ 78% | 7.7h ☀︎ 71% | 5.8h ☀︎ 61% | 5.5h ☀︎ 64% |
| Wind | N · 7 km/h | N · 7 km/h | N · 7 km/h | N · 7 km/h | NW · 7 km/h | NW · 7 km/h | NW · 7 km/h | NW · 7 km/h | NW · 6 km/h | N · 7 km/h | N · 7 km/h | N · 7 km/h |
| Humidity (%) | 72% | 72% | 72% | 72% | 76% | 74% | 69% | 71% | 76% | 76% | 78% | 73% |
| Day length | 9.1h | 10.4h | 11.9h | 13.6h | 15.0h | 15.7h | 15.4h | 14.1h | 12.5h | 10.9h | 9.5h | 8.7h |
| Tourist Crowds | High season | High season | High season | Shoulder season | Shoulder season | Shoulder season | High season | High season | Shoulder season | Low season | Low season | Shoulder season |