August weather forecastSion, Switzerland
August
Weather in August
August's weather in Sion, Switzerland echos that of the previous month, with the average temperatures dancing between 6.4°C (43.5°F) and 16.7°C (62.1°F). The month symbolizes the peak summer period, scoring equal to July in UV index evaluations. Rainfall takes a slight dip, yet it's shared somewhat evenly across the month to keep the climate balanced. The city basks in ample sunshine, and social events are aplenty this time of year.Temperature
August, known for its average high temperature of 16.7°C (62.1°F) and an average low temperature of 6.4°C (43.5°F), is the warmest month.Humidity
The months with the lowest humidity are July and August, with an average relative humidity of 79%.Rainfall
In Sion, in August, during 22.3 rainfall days, 147mm (5.79") of precipitation is typically accumulated. In Sion, during the entire year, the rain falls for 233.7 days and collects up to 1378mm (54.25") of precipitation.Snowfall
In Sion, snow does not fall in June through August.Daylight
In Sion, the average length of the day in August is 14h and 7min.On the first day of the month, sunrise is at 06:12 and sunset at 21:00. On the last day of August, sunrise is at 06:50 and sunset at 20:11 CEST.
Sunshine
The months with the most sunshine in Sion are July and August, with an average of 9.8h of sunshine.UV index
In Sion, the average daily maximum UV index in August is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 3 in August leads to these recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. When the Sun is at its strongest around midday, find shade and limit exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Sion, Switzerland
- Average high temperature in August: 16.7°C
The warmest month (with the highest average high temperature) is August (16.7°C).
The month with the lowest average high temperature is January (-2.5°C).
- Average low temperature in August: 6.4°C
The month with the highest average low temperature is August (6.4°C).
The coldest months (with the lowest average low temperature) are January and February (-11°C).
Average pressure in August
Sion, Switzerland
- Average pressure in August: 1017.6mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in August
Sion, Switzerland
- Average wind speed in August: 6.2km/h
The windiest month (with the highest average wind speed) is December (8.3km/h).
The calmest month (with the lowest average wind speed) is August (6.2km/h).
Average humidity in August
Sion, Switzerland
- Average humidity in August: 79%
The month with the highest relative humidity is March (90%).
The months with the lowest relative humidity are July and August (79%).
Average rainfall in August
Sion, Switzerland
- Average rainfall in August: 147mm
The wettest month (with the highest rainfall) is May (177mm).
The driest month (with the least rainfall) is September (76mm).
Average rainfall days in August
Sion, Switzerland
- Average rainfall days in August: 22.3 days
The month with the highest number of rainy days is May (25.8 days).
The month with the least rainy days is February (13.8 days).
Average snowfall in August
Sion, Switzerland
- Average snowfall in August: 0mm
The month with the highest snowfall is February (167mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in August
Sion, Switzerland
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (10.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Sion, Switzerland
- Average daylight in August: 14h and 6min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in August: 9h and 48min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in August
Sion, Switzerland
- Average sunshine days in August: 5.4 days
The month with the most sunshine days is October (13.5 days).
The month with the least sunshine days is June (2.8 days).
Average UV index in August
Sion, Switzerland
- Average UV index in August: 3
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in August
Sion, Switzerland
- Average cloud cover in August: 38
The months with the most cloud cover are February and March (Cloud cover 53).
The month with the least cloud cover is October (Cloud cover 37).
Average visibility in August
Sion, Switzerland
- Average visibility in August: 8km
The months with the highest visibility are June, July, August, October and November (8km).
The months with the lowest visibility are January, February and March (6km).
