When to go · Sion
Sion, month by month
The best months for Sion: Jun, Jul, Aug, Sep. Months to avoid: Jan, Feb, Mar, Nov, Dec.
Month by month
- JanuaryAvoidListed as a month to avoid: Nov–Mar (many hotels close, limited bus service).3 °C (37 °F) / -3 °C (27 °F), 8 rain days37 °F (3 °C) / 27 °F (-3 °C), 8 rain daysCrowds: Medium
- FebruaryAvoidListed as a month to avoid: Nov–Mar (many hotels close, limited bus service).5 °C (41 °F) / -2 °C (28 °F), 7 rain days41 °F (5 °C) / 28 °F (-2 °C), 7 rain daysCrowds: High
- MarchAvoidListed as a month to avoid: Nov–Mar (many hotels close, limited bus service).10 °C (50 °F) / 2 °C (36 °F), 9 rain days50 °F (10 °C) / 36 °F (2 °C), 9 rain daysCrowds: Medium · 1 festival or holiday
- AprilMixedOutside the best window (Jun–Sep). Across Switzerland: Ski season ends after Easter; Zurich's Sechseläuten; Ticino in blossom.15 °C (59 °F) / 5 °C (41 °F), 10 rain days59 °F (15 °C) / 41 °F (5 °C), 10 rain daysCrowds: Low
- MayMixedOutside the best window (Jun–Sep). Across Switzerland: Lakes and cities green and quiet; many mountain lifts closed for maintenance.20 °C (68 °F) / 9 °C (48 °F), 12 rain days68 °F (20 °C) / 48 °F (9 °C), 12 rain daysCrowds: Low
- JuneGreatInside Sion's best window: Jun–Sep.24 °C (75 °F) / 13 °C (55 °F), 13 rain days75 °F (24 °C) / 55 °F (13 °C), 13 rain daysCrowds: Medium
- JulyGreatInside Sion's best window: Jun–Sep.27 °C (81 °F) / 15 °C (59 °F), 12 rain days81 °F (27 °C) / 59 °F (15 °C), 12 rain daysCrowds: High
- AugustGreatInside Sion's best window: Jun–Sep.27 °C (81 °F) / 15 °C (59 °F), 12 rain days81 °F (27 °C) / 59 °F (15 °C), 12 rain daysCrowds: High
- SeptemberGreatInside Sion's best window: Jun–Sep.22 °C (72 °F) / 11 °C (52 °F), 10 rain days72 °F (22 °C) / 52 °F (11 °C), 10 rain daysCrowds: Medium
- OctoberMixedOutside the best window (Jun–Sep). Across Switzerland: Autumn larches in the Engadin and Valais; lifts close from mid-month.16 °C (61 °F) / 6 °C (43 °F), 9 rain days61 °F (16 °C) / 43 °F (6 °C), 9 rain daysCrowds: Low
- NovemberAvoidListed as a month to avoid: Nov–Mar (many hotels close, limited bus service).9 °C (48 °F) / 1 °C (34 °F), 9 rain days48 °F (9 °C) / 34 °F (1 °C), 9 rain daysCrowds: Low
- DecemberAvoidListed as a month to avoid: Nov–Mar (many hotels close, limited bus service).4 °C (39 °F) / -2 °C (28 °F), 9 rain days39 °F (4 °C) / 28 °F (-2 °C), 9 rain daysCrowds: High · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in Sion, side by side.
Verdict
Jun: Great
Jul: Great
Daytime high
Jun: 24 °C (75 °F)75 °F (24 °C)
Jul: 27 °C (81 °F)81 °F (27 °C)
Night low
Jun: 13 °C (55 °F)55 °F (13 °C)
Jul: 15 °C (59 °F)59 °F (15 °C)
Rain days
Jun: 13
Jul: 12 (better)
Crowds
Jun: Medium
Jul: High
Prices
Jun: Medium
Jul: High
Festivals listed
Jun: 0
Jul: 0
June: Inside Sion's best window: Jun–Sep.
July: Inside Sion's best window: Jun–Sep.
Sion: figures are long-term averages from this guide, not a forecast.