Sion
Bernese Alps, Switzerland
Current Weather
7°44°
Overcast
Feels Like: 5°41°
Min: 6°43°
Max: 9°48°
The next few hours will be overcast, with today reaching 9°C and dropping to 5°C. The coming days will be mostly clear
Hourly Forecast
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Air Quality
Air quality is satisfactory, and air pollution poses little or no risk.
Pollen Levels
Daylight Hours
08:07
Sunrise
18:21
Sunset
Moon
17:04
Moonrise
04:36
Moonset
Daily Forecast
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View stargazing scoreWeather in Sion today, October 23, 2026
Sion looks damp on October 23, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. The morning carries the wetter risk, with rain chances near 50% and the highest odds around 11:00. Cloud is also thick early on, peaking near 100% around 02:00.Sion looks damp on October 23, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. The morning carries the wetter risk, with rain chances near 50% and the highest odds around 11:00. Cloud is also thick early on, peaking near 100% around 02:00.
Expect highs of 9°C and cooler readings close to 6°C. Relative humidity sits between 63% and 94%, reaching its peak around 19:00. Airflow remains manageable, reaching about 9 km/h around 19:00.Expect highs of 48°F and cooler readings close to 43°F. Relative humidity sits between 63% and 94%, reaching its peak around 19:00. Airflow remains manageable, reaching about 5 mph around 19:00.
Through the afternoon wet weather remains a factor, with rain chances near 100% around 12:00. Cloud also stays substantial, close to 100% near 12:00. Horizontal visibility sits around 30.5 km, briefly nearer 10.6 km. Expect sunrise at 08:07, sunset at 18:21, and 10 hours 13 minutes of sunlight today overall.Through the afternoon wet weather remains a factor, with rain chances near 100% around 12:00. Cloud also stays substantial, close to 100% near 12:00. Horizontal visibility sits around 18.9 mi, briefly nearer 6.6 mi. Expect sunrise at 08:07, sunset at 18:21, and 10 hours 13 minutes of sunlight today overall.
The practical takeaway for Sion on October 23, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 9°C.The practical takeaway for Sion on October 23, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 48°F.
Frequently asked questions about weather in Sion
How warm does it get in Sion?
The warmest month in Sion is July, with average high temperatures of 20°C. The average temperature during this period is around 14°C.The warmest month in Sion is July, with average high temperatures of 67°F. The average temperature during this period is around 58°F.
How cold does it get in Sion?
The coldest month in Sion is January, with average low temperatures of -11°C. The average temperature during this period is around -7°C.The coldest month in Sion is January, with average low temperatures of 12°F. The average temperature during this period is around 20°F.
What is the wettest time of year in Sion?
The wettest month in Sion is May, with an average of 188 mm of precipitation.The wettest month in Sion is May, with an average of 7.4 in of precipitation.
What is the driest time of year in Sion?
The driest month in Sion is February, with an average of 102 mm of precipitation.The driest month in Sion is February, with an average of 4 in of precipitation.