August weather forecastSion, France
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Sion, France, with an average temperature ranging between max 28.5°C (83.3°F) and min 15.3°C (59.5°F).Temperature
In Sion, France, August is the warmest month, with temperatures averaging a high of 28.5°C (83.3°F) and a low of 15.3°C (59.5°F).Heat index
The heat index value during August is computed to be a hot 32°C (89.6°F). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Humidity
August is the least humid month, with an average relative humidity of 70%.Rainfall
The month with the least rainfall is August, when the rain falls for 13.6 days and typically collects 28mm (1.1") of precipitation.Snowfall
In Sion, snow does not fall in April through November.Daylight
The average length of the day in August is 13h and 56min.On the first day of August in Sion, sunrise is at 06:49 and sunset at 21:23. On the last day of the month, sunrise is at 07:23 and sunset at 20:37 CEST.
Sunshine
The average sunshine in August is 9h.UV index
In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In August, the maximum UV index of 5 suggests these recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Sion, France
- Average high temperature in August: 28.5°C
The warmest month (with the highest average high temperature) is August (28.5°C).
The month with the lowest average high temperature is January (9.8°C).
- Average low temperature in August: 15.3°C
The month with the highest average low temperature is July (15.5°C).
The coldest month (with the lowest average low temperature) is February (3.3°C).
Average pressure in August
Sion, France
- Average pressure in August: 1017.9mbar
The month with the highest atmospheric pressure is December (1021.6mbar).
The months with the lowest atmospheric pressure are April and November (1015.6mbar).
Average wind speed in August
Sion, France
- Average wind speed in August: 6.9km/h
The windiest month (with the highest average wind speed) is March (8.5km/h).
The calmest month (with the lowest average wind speed) is September (6.6km/h).
Average humidity in August
Sion, France
- Average humidity in August: 70%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (70%).
Average rainfall in August
Sion, France
- Average rainfall in August: 28mm
The wettest month (with the highest rainfall) is November (71mm).
The driest month (with the least rainfall) is August (28mm).
Average rainfall days in August
Sion, France
- Average rainfall days in August: 13.6 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is October (11.5 days).
Average snowfall in August
Sion, France
- Average snowfall in August: 0mm
The month with the highest snowfall is February (4mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in August
Sion, France
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Sion, France
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in August: 9h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The months with the least sunshine are January and November (Average sunshine: 5h and 0min).
Average sunshine days in August
Sion, France
- Average sunshine days in August: 13.6 days
The month with the most sunshine days is October (17.2 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in August
Sion, France
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in August
Sion, France
- Average cloud cover in August: 35
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in August
Sion, France
- Average visibility in August: 8km
The months with the highest visibility are May and June (9km).
The month with the lowest visibility is January (7km).





