Climate and monthly weather forecastSion, Netherlands

Climate and monthly weather forecast

Weather in January

January, the same as December, is another cold winter month in Sion, Netherlands, with an average temperature fluctuating between 3.4°C (38.1°F) and 5.9°C (42.6°F). With average temperatures fluctuating between a high of 5.9°C (42.6°F) and a low of 3.4°C (38.1°F), January stands out as the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is a chilly month in Sion, Netherlands, with an average temperature fluctuating between 6.2°C (43.2°F) and 2.9°C (37.2°F). With the onset of February, a modest change to a chilly 6.2°C (43.2°F) from January's 5.9°C (42.6°F) is noted in high-temperature. Weather in February »

Weather in March

The first month of the spring, March, is still a chilly month in Sion, Netherlands, with temperature in the range of an average high of 9°C (48.2°F) and an average low of 4.5°C (40.1°F). Sion, Netherlands, greets March with an average high-temperature of a still frosty 9°C (48.2°F), marking a slight deviation from the preceding month. Weather in March »

Weather in April

April in Sion, Netherlands, is a cool spring month, with an average temperature ranging between min 7.3°C (45.1°F) and max 12.7°C (54.9°F). A slight uplift of average high-temperatures is noted in April, with temperatures adjusting from a frosty 9°C (48.2°F) in March to a fresh 12.7°C (54.9°F). Weather in April »

Weather in May

May, the last month of the spring in Sion, is a refreshing month, with an average temperature varying between 15.3°C (59.5°F) and 10.1°C (50.2°F). In May, Sion notes an average high-temperature of a refreshing 15.3°C (59.5°F), hardly different from the preceding month. Weather in May »

Weather in June

June, the first month of the summer in Sion, is a refreshing month, with temperature in the range of an average low of 12.8°C (55°F) and an average high of 18.1°C (64.6°F). The advent of June signifies a minor shift to an average high-temperature of a comfortable 18.1°C (64.6°F), aligning closely with May. Weather in June »

Weather in July

July in Sion, Netherlands, is a pleasant summer month, with an average temperature ranging between min 15.3°C (59.5°F) and max 20.3°C (68.5°F). Sion commences July with an average high-temperature of a pleasant 20.3°C (68.5°F), maintaining a close resemblance to the previous month. Weather in July »

Weather in August

August, the last month of the summer in Sion, is another pleasant month, with an average temperature varying between 16.3°C (61.3°F) and 21.1°C (70°F). Sion's warmest month, August, generally records average temperatures ranging from a high of 21.1°C (70°F) to a low of 16.3°C (61.3°F). Weather in August »

Weather in September

September, the first month of the autumn in Sion, is still a refreshing month, with an average temperature varying between 18.1°C (64.6°F) and 13.8°C (56.8°F). The start of September involves a subtle temperature drop, shifting from a pleasant 21.1°C (70°F) in August to a comfortable 18.1°C (64.6°F). Weather in September »

Weather in October

October, like September, is another mild autumn month in Sion, Netherlands, with an average temperature ranging between max 14.6°C (58.3°F) and min 10.8°C (51.4°F). As September shifts into October, a minor alteration in temperatures is observed, with average highs reducing from a comfortable 18.1°C (64.6°F) to a still refreshing 14.6°C (58.3°F). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Sion, Netherlands, with an average temperature varying between 7.5°C (45.5°F) and 10.4°C (50.7°F). The advent of November brings a subtle shift in temperature, with the average high moving from a mild 14.6°C (58.3°F) in October to a cool 10.4°C (50.7°F). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Sion, Netherlands, with an average temperature fluctuating between 7.5°C (45.5°F) and 5°C (41°F). The shift to December signals an average high-temperature of a chilly 7.5°C (45.5°F), subtly varied from November's 10.4°C (50.7°F). Weather in December »

Frequently asked questions

The month of January sees the average lowest temperatures in Sion, reaching 5.9°C (42.6°F) at the peak and 3.4°C (38.1°F) at the low.

January and December, with an average relative humidity of 83%, are most humid months in Sion, Netherlands.

In Sion, during the entire year, the rain falls for 198.4 days and collects up to 554mm (21.81") of precipitation.

Months with snowfall are January through April, November and December.

In Sion, Netherlands, during the entire year, snow falls for 10.4 days and aggregates up to 55mm (2.17") of snow.

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Sion.

The month with the most snowfall in Sion, Netherlands, is February, when snow falls for 3.8 days and typically aggregates up to 24mm (0.94") of snow.

The months with the lowest humidity in Sion, Netherlands, are April and August, with an average relative humidity of 75%.

The month with the least rainfall in Sion is April, when the rain falls for 12.3 days and typically collects 18mm (0.71") of precipitation.

May through October are months without snowfall in Sion.

With an average of 16h and 42min of daylight, June has the longest days of the year in Sion, Netherlands.

With an average of 10.3h of sunshine, June has the most sunshine of the year in Sion, Netherlands.

The months with the highest UV index in Sion, Netherlands, are June through August, with an average maximum UV index of 5.

Temperature readings in Sion reach their annual highs in August, averaging 21.1°C (70°F) and a minimum average of 16.3°C (61.3°F).

August is the month with the most rainfall. Rain falls for 19.8 days and accumulates 65mm (2.56") of precipitation.

On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends, 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 shortest days is December, with an average of 7h and 48min of daylight.

The month with the least sunshine in Sion, Netherlands, is December, with an average of 3.5h of sunshine.

Average temperature
Sion, Netherlands

The warmest month (with the highest average high temperature) is August (21.1°C).
The month with the lowest average high temperature is January (5.9°C).

The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is February (2.9°C).

Average pressure
Sion, Netherlands

The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).

Average wind speed
Sion, Netherlands

The windiest month (with the highest average wind speed) is December (24.9km/h).
The calmest month (with the lowest average wind speed) is July (16.2km/h).

Average humidity
Sion, Netherlands

The months with the highest relative humidity are January and December (83%).
The months with the lowest relative humidity are April and August (75%).

Average rainfall
Sion, Netherlands

The wettest month (with the highest rainfall) is August (65mm).
The driest month (with the least rainfall) is April (18mm).

Average rainfall days
Sion, Netherlands

The months with the highest number of rainy days are August and December (19.8 days).
The month with the least rainy days is April (12.3 days).

Average snowfall
Sion, Netherlands

The month with the highest snowfall is February (24mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days
Sion, Netherlands

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Sion, Netherlands

The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).

Average sunshine days
Sion, Netherlands

The month with the most sunshine days is April (15.8 days).
The month with the least sunshine days is December (7.1 days).

Average UV index
Sion, Netherlands

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover
Sion, Netherlands

The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 38).

Average visibility
Sion, Netherlands

The months with the highest visibility are March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and December (9km).