When to go · Sion
Sion in December
Avoid month. Listed as a month to avoid: Nov–Mar (many hotels close, limited bus service).
Key facts
- Verdict
- Avoid
- Temperature
- 4°C (39°F)39°F (4°C) / −2°C (28°F)28°F (−2°C)
- average high / low
- Rain days
- 9
- Crowds
- High
- Switzerland overall
- Prices
- High
- Switzerland overall
Verdict
Listed as a month to avoid: Nov–Mar (many hotels close, limited bus service).
Is another month better than December?
December is rated avoid. These months rate higher:
Weather in December
- SionHighs around 4 °C (39 °F), lows around -2 °C (28 °F), rain on about 9 daysHighs around 39 °F (4 °C), lows around 28 °F (-2 °C), rain on about 9 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Christmas big impact
24–26 Dec · Switzerland
Shops closed 25–26 Dec; resort prices peak through New Year.
Crowds and prices
- Crowds · Switzerland overall
- High
- Prices · Switzerland overall
- High
Switzerland overall: Christmas markets (Basel, Zurich, Montreux) and ski season from mid-month; Christmas–New Year is the most expensive week.
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
Dec: Avoid
Jun: Great (better)
Daytime high
Dec: 4 °C (39 °F)39 °F (4 °C)
Jun: 24 °C (75 °F)75 °F (24 °C)
Night low
Dec: -2 °C (28 °F)28 °F (-2 °C)
Jun: 13 °C (55 °F)55 °F (13 °C)
Rain days
Dec: 9 (better)
Jun: 13
Crowds
Dec: High
Jun: Medium
Prices
Dec: High
Jun: Medium
Festivals listed
Dec: 1
Jun: 0
December: Listed as a month to avoid: Nov–Mar (many hotels close, limited bus service).
June: Inside Sion's best window: Jun–Sep.
Sion: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm coat, hat and gloves for mornings and evenings