April weather forecastSion, France
April
Weather in April
April in Sion, France, is a refreshing spring month, with temperature in the range of an average high of 18.4°C (65.1°F) and an average low of 8°C (46.4°F).Temperature
Observing a minor shift, the average high-temperature during April adjusts from March's 14.9°C (58.8°F) to a still refreshing 18.4°C (65.1°F). An average nighttime temperature of 8°C (46.4°F) is recorded during April.Humidity
In April, the average relative humidity is 75%.Rainfall
In Sion, France, in April, it is raining for 16.4 days, with typically 50mm (1.97") of accumulated precipitation. 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
In Sion, France, the average length of the day in April is 13h and 27min.On the first day of April in Sion, sunrise is at 07:40 and sunset at 20:27. On the last day of the month, sunrise is at 06:52 and sunset at 21:01 CEST.
Sunshine
In Sion, the average sunshine in April is 7h.UV index
In Sion, the average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 4 in April translates into this advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Sion, France
- Average high temperature in April: 18.4°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 April: 8°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 April
Sion, France
- Average pressure in April: 1015.6mbar
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 April
Sion, France
- Average wind speed in April: 7.9km/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 April
Sion, France
- Average humidity in April: 75%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (70%).
Average rainfall in April
Sion, France
- Average rainfall in April: 50mm
The wettest month (with the highest rainfall) is November (71mm).
The driest month (with the least rainfall) is August (28mm).
Average rainfall days in April
Sion, France
- Average rainfall days in April: 16.4 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 April
Sion, France
- Average snowfall in April: 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 April
Sion, France
- Average snowfall days in April: 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 April /
Average sunshine in April
Sion, France
- Average daylight in April: 13h and 30min
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 April: 7h 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 April
Sion, France
- Average sunshine days in April: 11.7 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 April
Sion, France
- Average UV index in April: 4
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 April
Sion, France
- Average cloud cover in April: 48
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 April
Sion, France
- Average visibility in April: 8km
The months with the highest visibility are May and June (9km).
The month with the lowest visibility is January (7km).





