July weather forecastSion, France
July
Weather in July
July, the same as June, is a moderately hot summer month in Sion, France, with an average temperature fluctuating between 15.5°C (59.9°F) and 27.9°C (82.2°F).Temperature
Sion's transition from June to July introduces an average high-temperature of a still moderately hot 27.9°C (82.2°F), marking an insignificant variation from the 25.5°C (77.9°F). Sion observes a substantial disparity between daytime high and the average low-temperature of 15.5°C (59.9°F) during July nights.Heat index
In July, the heat index is computed to be a tropical 31°C (87.8°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.Be aware that heat index ratings are designed for shaded locations and minor breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
The average relative humidity in July in Sion is 72%.Rainfall
In July, the rain falls for 15.4 days. Throughout July, 39mm (1.54") of precipitation is accumulated. In Sion, during the entire year, the rain falls for 177.5 days and collects up to 528mm (20.79") of precipitation.Snowfall
In Sion, snow does not fall in April through November.Daylight
The average length of the day in July in Sion is 15h and 4min.On the first day of July in Sion, sunrise is at 06:22 and sunset at 21:45. On the last day of the month, sunrise is at 06:48 and sunset at 21:24 CEST.
Sunshine
The month with the most sunshine in Sion is July, with an average of 9.5h of sunshine.UV index
June and July, with an average maximum UV index of 6, are months with the highest UV index in Sion. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 6 during July translates into the following guidance:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Sion, France
- Average high temperature in July: 27.9°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 July: 15.5°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 July
Sion, France
- Average pressure in July: 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 July
Sion, France
- Average wind speed in July: 7.3km/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 July
Sion, France
- Average humidity in July: 72%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (70%).
Average rainfall in July
Sion, France
- Average rainfall in July: 39mm
The wettest month (with the highest rainfall) is November (71mm).
The driest month (with the least rainfall) is August (28mm).
Average rainfall days in July
Sion, France
- Average rainfall days in July: 15.4 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 July
Sion, France
- Average snowfall in July: 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 July
Sion, France
- Average snowfall days in July: 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 July /
Average sunshine in July
Sion, France
- Average daylight in July: 15h and 6min
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 July: 9h and 30min
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 July
Sion, France
- Average sunshine days in July: 11.5 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 July
Sion, France
- Average UV index in July: 6
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 July
Sion, France
- Average cloud cover in July: 39
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 July
Sion, France
- Average visibility in July: 8km
The months with the highest visibility are May and June (9km).
The month with the lowest visibility is January (7km).





