Climate and monthly weather forecastSiselen, Switzerland
Climate and monthly weather forecast
Weather in January
January, like December, in Siselen, Switzerland, is a wintry winter month, with an average temperature fluctuating between 2.7°C (36.9°F) and -2.8°C (27°F). January, with its average high-temperature of 2.7°C (36.9°F) and an average low-temperature of -2.8°C (27°F), holds the record as the coldest month. Weather in January »Weather in February
February, the last month of the winter in Siselen, is another cold month, with temperature in the range of an average high of 3.7°C (38.7°F) and an average low of -2.8°C (27°F). February's onset brings an average high-temperature of a still icy 3.7°C (38.7°F), showing a minute difference from January's 2.7°C (36.9°F). Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Siselen, Switzerland, with an average temperature varying between 8.8°C (47.8°F) and 0.3°C (32.5°F). An escalation in the average high-temperature is seen with the onset of March, moving from a wintry 3.7°C (38.7°F) in February to a chilly 8.8°C (47.8°F). Weather in March »Weather in April
April is a moderate spring month in Siselen, Switzerland, with temperature in the range of an average low of 3.5°C (38.3°F) and an average high of 14°C (57.2°F). The rise of average high-temperatures is seen in April, with an increase from a frosty 8.8°C (47.8°F) in March to a mild 14°C (57.2°F). Weather in April »Weather in May
May, the last month of the spring in Siselen, is an enjoyable month, with temperature in the range of an average low of 6°C (42.8°F) and an average high of 16.8°C (62.2°F). The introduction of May sees an average high-temperature of a comfortable 16.8°C (62.2°F), hardly deviating from April. Weather in May »Weather in June
June, the first month of the summer in Siselen, is an agreeable month, with an average temperature varying between 9.9°C (49.8°F) and 20.8°C (69.4°F). As June begins, there's a slight increase in the average high-temperature, moving from an enjoyable 16.8°C (62.2°F) in May to a pleasant 20.8°C (69.4°F). Weather in June »Weather in July
July is a warm summer month in Siselen, Switzerland, with temperature in the range of an average high of 23.1°C (73.6°F) and an average low of 11.9°C (53.4°F). Siselen's July weather, marked by an average high temperature of 23.1°C (73.6°F) and an average low temperature of 11.9°C (53.4°F), is the warmest in the year. Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Siselen, Switzerland, with an average temperature fluctuating between 23°C (73.4°F) and 11.7°C (53.1°F). August notes an average high-temperature of a still warm 23°C (73.4°F), subtly differing from July's 23.1°C (73.6°F). Weather in August »Weather in September
The first month of the autumn, September, is also an enjoyable month in Siselen, Switzerland, with temperature in the range of an average low of 8.3°C (46.9°F) and an average high of 18.7°C (65.7°F). Siselen records a mild change in average high-temperature during September, easing from a moderately hot 23°C (73.4°F) in August to an enjoyable 18.7°C (65.7°F). Weather in September »Weather in October
October, like September, is a moderate autumn month in Siselen, Switzerland, with an average temperature varying between 4.9°C (40.8°F) and 13.7°C (56.7°F). As September transitions into October, Siselen sees a drop in the average high-temperature, transitioning from a comfortable 18.7°C (65.7°F) to a mild 13.7°C (56.7°F). Weather in October »Weather in November
November, the last month of the autumn in Siselen, is also a frosty month, with an average temperature ranging between min 1.4°C (34.5°F) and max 8.2°C (46.8°F). Siselen experiences a temperature shift at the start of November, with average high-temperatures adjusting from a moderate 13.7°C (56.7°F) in October to a chilly 8.2°C (46.8°F). Weather in November »Weather in December
December, the first month of the winter in Siselen, is still a cold month, with an average temperature ranging between max 4.2°C (39.6°F) and min -1.5°C (29.3°F). In December, the meteorological conditions change slightly, with the average high-temperature moving from a chilly 8.2°C (46.8°F) in November to an icy 4.2°C (39.6°F). Weather in December »Updated: Jun 13, 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
The coldest time of the year is January, with temperatures averaging a high of 2.7°C (36.9°F) and a low of -2.8°C (27°F).
With an average relative humidity of 87%, January is the most humid month.
In Siselen, during the entire year, the rain falls for 195.6 days and collects up to 870mm (34.25") of precipitation.
January through May, September through December are months with snowfall.
In Siselen, during the entire year, snow falls for 37.6 days and aggregates up to 557mm (21.93") of snow.
The months with the lowest UV index in Siselen are January, February, November and December, with an average maximum UV index of 2.
The month with the most snowfall is February, when snow falls for 9.4 days and typically aggregates up to 133mm (5.24") of snow.
The months with the lowest humidity in Siselen are April, July and August, with an average relative humidity of 79%.
The month with the most rainfall is June, when the rain falls for 20.2 days and typically aggregates up to 97mm (3.82") of precipitation.
June through August are months without snowfall.
June has the longest days of the year, with an average of 15h and 48min of daylight.
June and July, with an average maximum UV index of 5, are months with the highest UV index.
The highest temperatures are recorded in July, with averages reaching a high of 23.1°C (73.6°F) and a low of 11.9°C (53.4°F).
August has the most sunshine of the year, with an average of 10.3h of sunshine.
The month with the least rainfall in Siselen is September, when the rain falls for 15 days and typically collects 46mm (1.81") 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.
December has the shortest days of the year, with an average of 8h and 36min of daylight.
With an average of 4.9h of sunshine, December has the least sunshine of the year.
Average temperature
Siselen, Switzerland
The warmest month (with the highest average high temperature) is July (23.1°C).
The month with the lowest average high temperature is January (2.7°C).
The month with the highest average low temperature is July (11.9°C).
The coldest months (with the lowest average low temperature) are January and February (-2.8°C).
Average pressure
Siselen, Switzerland
- Average pressure in January:
1019.5mbar - Average pressure in February:
1017.8mbar - Average pressure in March:
1017.1mbar - Average pressure in April:
1015.6mbar - Average pressure in May:
1016.3mbar - Average pressure in June:
1016.6mbar
- Average pressure in July:
1017.1mbar - Average pressure in August:
1017.7mbar - Average pressure in September:
1018.6mbar - Average pressure in October:
1018.5mbar - Average pressure in November:
1015.8mbar - Average pressure in December:
1021mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed
Siselen, Switzerland
- Average wind speed in January:
9.7km/h - Average wind speed in February:
10.2km/h - Average wind speed in March:
10.1km/h - Average wind speed in April:
8.3km/h - Average wind speed in May:
8.4km/h - Average wind speed in June:
7.6km/h
- Average wind speed in July:
7.1km/h - Average wind speed in August:
6.3km/h - Average wind speed in September:
7.2km/h - Average wind speed in October:
7.2km/h - Average wind speed in November:
8.2km/h - Average wind speed in December:
9.9km/h
The windiest month (with the highest average wind speed) is February (10.2km/h).
The calmest month (with the lowest average wind speed) is August (6.3km/h).
Average humidity
Siselen, Switzerland
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April, July and August (79%).
Average rainfall
Siselen, Switzerland
The wettest month (with the highest rainfall) is June (97mm).
The driest month (with the least rainfall) is September (46mm).
Average rainfall days
Siselen, Switzerland
- Average rainfall days in January:
13.7 days - Average rainfall days in February:
12.3 days - Average rainfall days in March:
15.3 days - Average rainfall days in April:
17.7 days - Average rainfall days in May:
21.9 days - Average rainfall days in June:
20.2 days
- Average rainfall days in July:
19.7 days - Average rainfall days in August:
17.8 days - Average rainfall days in September:
15 days - Average rainfall days in October:
13.6 days - Average rainfall days in November:
13.5 days - Average rainfall days in December:
14.9 days
The month with the highest number of rainy days is May (21.9 days).
The month with the least rainy days is February (12.3 days).
Average snowfall
Siselen, Switzerland
The month with the highest snowfall is February (133mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days
Siselen, Switzerland
- Average snowfall days in January:
9.6 days - Average snowfall days in February:
9.4 days - Average snowfall days in March:
5.4 days - Average snowfall days in April:
1.1 days - Average snowfall days in May:
0.3 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:
0.1 days - Average snowfall days in October:
0.4 days - Average snowfall days in November:
3.8 days - Average snowfall days in December:
7.5 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Siselen, Switzerland
- Average daylight in January:
9h and 0min - Average daylight in February:
10h and 18min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 36min - Average daylight in May:
15h and 6min - Average daylight in June:
15h and 48min
- Average daylight in July:
15h and 30min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 24min - Average daylight in December:
8h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in January:
5h and 12min - Average sunshine in February:
5h and 30min - Average sunshine in March:
7h and 0min - Average sunshine in April:
9h and 6min - Average sunshine in May:
9h and 0min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 18min - Average sunshine in September:
8h and 36min - Average sunshine in October:
6h and 24min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days
Siselen, Switzerland
- Average sunshine days in January:
11.6 days - Average sunshine days in February:
11.1 days - Average sunshine days in March:
12.9 days - Average sunshine days in April:
9.7 days - Average sunshine days in May:
6.7 days - Average sunshine days in June:
7.1 days
- Average sunshine days in July:
7.8 days - Average sunshine days in August:
9.8 days - Average sunshine days in September:
12.1 days - Average sunshine days in October:
14.1 days - Average sunshine days in November:
12.8 days - Average sunshine days in December:
12.5 days
The month with the most sunshine days is October (14.1 days).
The month with the least sunshine days is May (6.7 days).
Average UV index
Siselen, Switzerland
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Siselen, Switzerland
The months with the most cloud cover are January, February and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Siselen, Switzerland
The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are January, February, May, June, September, October, November and December (8km).
