Climate and monthly weather forecastSion, France
Climate and monthly weather forecast
Weather in January
January, like December, is a frosty winter month in Sion, France, with temperature in the range of an average low of 3.6°C (38.5°F) and an average high of 9.8°C (49.6°F). During the coldest month, January, temperatures average a high of 9.8°C (49.6°F) and a low of 3.6°C (38.5°F). Weather in January »Weather in February
The last month of the winter, February, is a cool month in Sion, France, with an average temperature ranging between max 11°C (51.8°F) and min 3.3°C (37.9°F). Sion, France, experiences an average high-temperature of a fresh 11°C (51.8°F) in February, subtly different from January's 9.8°C (49.6°F). Weather in February »Weather in March
The first month of the spring, March, is a mild month in Sion, France, with temperature in the range of an average low of 5.3°C (41.5°F) and an average high of 14.9°C (58.8°F). March's arrival brings a modest temperature shift, moving from a cool 11°C (51.8°F) in February to a mild 14.9°C (58.8°F). Weather in March »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). 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). Weather in April »Weather in May
May, the last month of the spring in Sion, is an agreeable month, with temperature in the range of an average low of 10.8°C (51.4°F) and an average high of 21.4°C (70.5°F). The arrival of May brings a soft temperature shift, with the average high-temperature nudging from a refreshing 18.4°C (65.1°F) in April to a pleasant 21.4°C (70.5°F). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Sion, France, with an average temperature varying between 25.5°C (77.9°F) and 13.8°C (56.8°F). A soft shift in the average high-temperature is noticeable in June, transitioning from a pleasant 21.4°C (70.5°F) in May to a warm 25.5°C (77.9°F). Weather in June »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). 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). Weather in July »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). 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). The heat index value during August is computed to be a hot 32°C (89.6°F). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Sion, France, with an average temperature ranging between max 25.1°C (77.2°F) and min 12.9°C (55.2°F). As September commences, the average high-temperature subtly reduces, transitioning from 28.5°C (83.3°F) in August to a still moderately hot 25.1°C (77.2°F). Weather in September »Weather in October
October, like September, is an agreeable autumn month in Sion, France, with an average temperature varying between 20.5°C (68.9°F) and 10.6°C (51.1°F). October is characterized by a slight reduction in average high-temperature, easing from a moderately hot 25.1°C (77.2°F) in September to an agreeable 20.5°C (68.9°F). Weather in October »Weather in November
November, the last month of the autumn in Sion, is also a moderate month, with an average temperature ranging between min 7.5°C (45.5°F) and max 13.9°C (57°F). The onset of November coincides with a reduction in the average high-temperature, falling from an agreeable 20.5°C (68.9°F) in October to a moderate 13.9°C (57°F). Weather in November »Weather in December
The first month of the winter, December, is still a cool month in Sion, France, with an average temperature varying between 4.6°C (40.3°F) and 10.6°C (51.1°F). The move into December indicates a slight reduction in the average high-temperature, down from November's mild 13.9°C (57°F) to a cool 10.6°C (51.1°F). Weather in December »Updated: Feb 7, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January, noted for its average high-temperature of 9.8°C (49.6°F) and an average low-temperature of 3.6°C (38.5°F), is considered the coldest month in Sion.
January is the most humid month in Sion, France, with an average relative humidity of 86%.
In Sion, France, during the entire year, the rain falls for 177.5 days and collects up to 528mm (20.79") of precipitation.
Months with snowfall in Sion, France, are January through March and December.
Throughout the year, there are 2.4 snowfall days, and 11mm (0.43") of snow is accumulated.
January and November, with an average of 5h of sunshine, are months with the least sunshine in Sion, France.
The months with the lowest UV index in Sion are January and February, with an average maximum UV index of 2.
February is the month with the most snowfall in Sion. Snow falls for 1.1 days and accumulates 4mm (0.16") of snow.
April through November are months without snowfall in Sion, France.
With an average of 15h and 24min of daylight, June has the longest days of the year in Sion.
June and July, with an average maximum UV index of 6, are months with the highest UV index in Sion.
The month with the most sunshine in Sion is July, with an average of 9.5h of sunshine.
The highest temperatures in Sion, France, are recorded in August, with averages reaching a high of 28.5°C (83.3°F) and a low of 15.3°C (59.5°F).
August is the least humid month in Sion, with an average relative humidity of 70%.
August is the month with the least rainfall. Rain falls for 13.6 days and accumulates 28mm (1.1") of precipitation.
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Sion, France, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.
The month with the most rainfall is November, when the rain falls for 16.5 days and typically aggregates up to 71mm (2.8") of precipitation.
December has the shortest days of the year, with an average of 9h and 0min of daylight.
Average temperature
Sion, France
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).
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
Sion, France
- Average pressure in January:
1020.2mbar - Average pressure in February:
1018.6mbar - Average pressure in March:
1017.5mbar - Average pressure in April:
1015.6mbar - Average pressure in May:
1017.2mbar - Average pressure in June:
1017.2mbar
- Average pressure in July:
1017.9mbar - Average pressure in August:
1017.9mbar - Average pressure in September:
1018.4mbar - Average pressure in October:
1017.2mbar - Average pressure in November:
1015.6mbar - Average pressure in December:
1021.6mbar
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
Sion, France
- Average wind speed in January:
7.9km/h - Average wind speed in February:
8km/h - Average wind speed in March:
8.5km/h - Average wind speed in April:
7.9km/h - Average wind speed in May:
8.2km/h - Average wind speed in June:
7.7km/h
- Average wind speed in July:
7.3km/h - Average wind speed in August:
6.9km/h - Average wind speed in September:
6.6km/h - Average wind speed in October:
7km/h - Average wind speed in November:
7.9km/h - Average wind speed in December:
7.7km/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
Sion, France
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (70%).
Average rainfall
Sion, France
The wettest month (with the highest rainfall) is November (71mm).
The driest month (with the least rainfall) is August (28mm).
Average rainfall days
Sion, France
- Average rainfall days in January:
15.6 days - Average rainfall days in February:
13.9 days - Average rainfall days in March:
15.1 days - Average rainfall days in April:
16.4 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
16 days
- Average rainfall days in July:
15.4 days - Average rainfall days in August:
13.6 days - Average rainfall days in September:
11.7 days - Average rainfall days in October:
11.5 days - Average rainfall days in November:
16.5 days - Average rainfall days in December:
14 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
Sion, France
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
Sion, France
- Average snowfall days in January:
0.4 days - Average snowfall days in February:
1.1 days - Average snowfall days in March:
0.4 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.5 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 / Average sunshine
Sion, France
- Average daylight in January:
9h and 24min - Average daylight in February:
10h and 30min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 24min
- Average daylight in July:
15h and 6min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 0min
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 January:
5h and 0min - Average sunshine in February:
6h and 36min - Average sunshine in March:
6h and 48min - Average sunshine in April:
7h and 0min - Average sunshine in May:
8h and 18min - Average sunshine in June:
9h and 6min
- Average sunshine in July:
9h and 30min - Average sunshine in August:
9h and 0min - Average sunshine in September:
8h and 36min - Average sunshine in October:
7h and 42min - Average sunshine in November:
5h and 0min - Average sunshine in December:
5h and 6min
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
Sion, France
- Average sunshine days in January:
13.3 days - Average sunshine days in February:
12.3 days - Average sunshine days in March:
13.6 days - Average sunshine days in April:
11.7 days - Average sunshine days in May:
10.5 days - Average sunshine days in June:
11.3 days
- Average sunshine days in July:
11.5 days - Average sunshine days in August:
13.6 days - Average sunshine days in September:
15.2 days - Average sunshine days in October:
17.2 days - Average sunshine days in November:
12 days - Average sunshine days in December:
15.6 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
Sion, France
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
Sion, France
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
Sion, France
The months with the highest visibility are May and June (9km).
The month with the lowest visibility is January (7km).
