When to go · Sion
Sion in August
Great month. Inside Sion's best window: Jun–Sep.
Key facts
- Verdict
- Great
- Temperature
- 27°C (81°F)81°F (27°C) / 15°C (59°F)59°F (15°C)
- average high / low
- Rain days
- 12
- Crowds
- High
- Switzerland overall
- Prices
- High
- Switzerland overall
Verdict
Inside Sion's best window: Jun–Sep.
Is another month better than August?
No other month rates higher than August for Sion in this guide.
Weather in August
- SionHighs around 27 °C (81 °F), lows around 15 °C (59 °F), rain on about 12 daysHighs around 81 °F (27 °C), lows around 59 °F (15 °C), rain on about 12 days
Crowds and prices
- Crowds · Switzerland overall
- High
- Prices · Switzerland overall
- High
Switzerland overall: National Day on 1 August; Locarno Film Festival; river swimming in Bern, Basel and Zurich.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Sion, side by side.
Verdict
Aug: Great
Jun: Great
Daytime high
Aug: 27 °C (81 °F)81 °F (27 °C)
Jun: 24 °C (75 °F)75 °F (24 °C)
Night low
Aug: 15 °C (59 °F)59 °F (15 °C)
Jun: 13 °C (55 °F)55 °F (13 °C)
Rain days
Aug: 12 (better)
Jun: 13
Crowds
Aug: High
Jun: Medium
Prices
Aug: High
Jun: Medium
Festivals listed
Aug: 0
Jun: 0
August: Inside Sion's best window: Jun–Sep.
June: Inside Sion's best window: Jun–Sep.
Sion: figures are long-term averages from this guide, not a forecast.
What to pack
- A rain jacket or umbrella and shoes that dry fast