CH
Sion climate and weather
Current conditions
12.3° / 0.4°
Fog
- Feels like
- 10.7° / -1.7°
- Humidity
- —
- Wind
- 5.9 km/h (gusts 9.7)
- UV index
- 2.6
- Sunrise / sunset
- 07:30 / 16:59
- Daylight
- 9.5 hrs
7-day forecast
| Date | Weather | High | Low | Feels like | Precip | Rain | Wind | UV |
|---|---|---|---|---|---|---|---|---|
| Sat 14 Nov | Fog | 12.3° | 0.4° | 10.7° / -1.7° | 0.0 mm | 0% | 5.9 km/h | 2.6 |
| Sun 15 Nov | Slight rain | 10.9° | 4.4° | 9.5° / 2.2° | 0.7 mm | 39% | 6.6 km/h | 2.5 |
| Mon 16 Nov | Moderate rain | 11.7° | 5.8° | 10.4° / 3.4° | 7.0 mm | 97% | 8.4 km/h | 1.0 |
| Tue 17 Nov | Moderate rain | 11.0° | 8.0° | 9.2° / 5.8° | 17.1 mm | 95% | 9.6 km/h | 1.9 |
| Wed 18 Nov | Slight rain showers | 9.8° | 5.8° | 8.3° / 3.5° | 21.7 mm | 94% | 7.2 km/h | 1.4 |
| Thu 19 Nov | Moderate rain | 9.9° | 6.5° | 8.9° / 4.6° | 12.9 mm | 93% | 6.4 km/h | 1.1 |
| Fri 20 Nov | Slight snow showers | 8.8° | 6.1° | 7.3° / 4.5° | 7.5 mm | 86% | 5.9 km/h | 1.9 |
Air quality
17
Good
US Air Quality Index
European AQI: 23
- PM2.5
- 2.5 µg/m³
- PM10
- 2.9 µg/m³
- Ozone (O₃)
- 24.0 µg/m³
- NO₂
- 12.2 µg/m³
- SO₂
- 0.1 µg/m³
- CO
- 167.0 µg/m³
- UV index
- 0.0
- Dust
- 0.0 µg/m³
Pollen
- Grass
- 0.0
- Birch
- 0.0
- Ragweed
- 0.0
Climate through the year
Now: November
Average high and low, °C Rainfall, mm
Temperature by month
Precipitation and rain days
Sunshine, UV and humidity
Best months to visit
| Month | Rating | Avg high | Avg low | Rain days | Sun (hrs) | Humidity |
|---|---|---|---|---|---|---|
| September | Excellent · 76 | 22.7°C | 12.8°C | 11.6 | 291.0 | 76.3% |
| July | Good · 73 | 27.4°C | 17.0°C | 13.5 | 396.8 | 68.4% |
| August | Good · 71 | 27.8°C | 16.7°C | 11.4 | 359.6 | 67.5% |
| June | Good · 68 | 26.5°C | 15.5°C | 16.2 | 381.0 | 69.4% |
| October | Good · 55 | 19.1°C | 9.3°C | 11.2 | 248.0 | 76.3% |
| May | Fair · 52 | 19.4°C | 9.7°C | 17.2 | 322.4 | 76.1% |
| March | Fair · 36 | 11.6°C | 2.8°C | 11.2 | 275.9 | 70.0% |
| April | Fair · 36 | 14.8°C | 4.8°C | 13.2 | 300.0 | 72.8% |
| February | Poor · 32 | 9.8°C | 1.7°C | 9.6 | 212.8 | 71.1% |
| January | Poor · 26 | 6.1°C | -0.5°C | 13.7 | 186.0 | 72.8% |
| November | Poor · 26 | 11.2°C | 3.3°C | 14.6 | 177.0 | 77.6% |
| December | Poor · 26 | 7.7°C | 0.7°C | 12.0 | 170.5 | 75.5% |
Monthly climate data
| Month | High | Low | Mean | Feels high | Feels low | Precip | Rain days | Snow | Sun | Daylight | UV | Humidity | Wind | Clouds |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | 6.1° | -0.5° | 2.7° | 3.5° | -3.8° | 124.7 mm | 13.7 | 81.5 cm | 186.0 hrs | 9.1 hrs | — | 72.8% | 6.5 km/h | 65.3% |
| Feb | 9.8° | 1.7° | 5.5° | 7.6° | -1.3° | 73.6 mm | 9.6 | 44.5 cm | 212.8 hrs | 10.4 hrs | — | 71.1% | 6.4 km/h | 61.5% |
| Mar | 11.6° | 2.8° | 7.0° | 9.9° | 0.0° | 114.4 mm | 11.2 | 67.6 cm | 275.9 hrs | 11.9 hrs | — | 70.0% | 6.6 km/h | 63.3% |
| Apr | 14.8° | 4.8° | 9.5° | 14.0° | 2.6° | 104.6 mm | 13.2 | 45.6 cm | 300.0 hrs | 13.6 hrs | — | 72.8% | 6.6 km/h | 65.7% |
| May | 19.4° | 9.7° | 14.4° | 19.8° | 8.7° | 141.5 mm | 17.2 | 13.2 cm | 322.4 hrs | 15.0 hrs | — | 76.1% | 6.6 km/h | 71.3% |
| Jun | 26.5° | 15.5° | 21.0° | 28.2° | 16.2° | 100.4 mm | 16.2 | 0.0 cm | 381.0 hrs | 15.7 hrs | — | 69.4% | 7.2 km/h | 59.0% |
| Jul | 27.4° | 17.0° | 22.0° | 29.2° | 18.2° | 109.9 mm | 13.5 | 0.0 cm | 396.8 hrs | 15.4 hrs | — | 68.4% | 7.7 km/h | 52.1% |
| Aug | 27.8° | 16.7° | 22.1° | 29.1° | 17.8° | 88.7 mm | 11.4 | 0.0 cm | 359.6 hrs | 14.1 hrs | — | 67.5% | 7.4 km/h | 51.1% |
| Sep | 22.7° | 12.8° | 17.5° | 23.3° | 12.8° | 112.1 mm | 11.6 | 4.3 cm | 291.0 hrs | 12.5 hrs | — | 76.3% | 6.7 km/h | 61.2% |
| Oct | 19.1° | 9.3° | 13.8° | 18.6° | 8.0° | 102.3 mm | 11.2 | 8.6 cm | 248.0 hrs | 10.9 hrs | — | 76.3% | 6.9 km/h | 65.4% |
| Nov | 11.2° | 3.3° | 6.9° | 9.3° | 0.7° | 145.9 mm | 14.6 | 73.4 cm | 177.0 hrs | 9.5 hrs | — | 77.6% | 6.6 km/h | 71.4% |
| Dec | 7.7° | 0.7° | 4.0° | 5.4° | -2.4° | 149.7 mm | 12.0 | 74.8 cm | 170.5 hrs | 8.7 hrs | — | 75.5% | 6.4 km/h | 65.6% |