Climate and monthly weather forecastRiaz, Switzerland
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Riaz, Switzerland, with an average temperature varying between -7.3°C (18.9°F) and 0.6°C (33.1°F). Riaz's January weather, with an average high temperature of 0.6°C (33.1°F) and an average low temperature of -7.3°C (18.9°F), tends to be the coldest of the year. Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Riaz, Switzerland, with an average temperature fluctuating between -7.7°C (18.1°F) and 0.8°C (33.4°F). The unfolding of February shows an average high-temperature of a still icy 0.8°C (33.4°F), indicating a slight variance from January's 0.6°C (33.1°F). Weather in February »Weather in March
March, the first month of the spring in Riaz, is also an icy month, with an average temperature ranging between max 4.7°C (40.5°F) and min -3.9°C (25°F). In March, the average high-temperature marginally rises from 0.8°C (33.4°F) in February to a still icy 4.7°C (40.5°F). Weather in March »Weather in April
April in Riaz, Switzerland, is a fresh spring month, with an average temperature varying between 0.3°C (32.5°F) and 10.2°C (50.4°F). A shift in the average high-temperature is noticeable in April, changing from an icy 4.7°C (40.5°F) in March to a cool 10.2°C (50.4°F). Weather in April »Weather in May
The last month of the spring, May, is a moderate month in Riaz, Switzerland, with an average temperature varying between 3.2°C (37.8°F) and 13.3°C (55.9°F). The start of May signals a slight increase in the average high-temperature, moving from a cool 10.2°C (50.4°F) in April to a refreshing 13.3°C (55.9°F). Weather in May »Weather in June
The first month of the summer, June, is an enjoyable month in Riaz, Switzerland, with an average temperature ranging between min 6.9°C (44.4°F) and max 17.9°C (64.2°F). The embrace of June brings a minor uplift in the average high-temperature, shifting from 13.3°C (55.9°F) in May to a still refreshing 17.9°C (64.2°F). Weather in June »Weather in July
July in Riaz, Switzerland, is a pleasant summer month, with an average temperature varying between 8.8°C (47.8°F) and 20.1°C (68.2°F). The warmest period, with an average high-temperature of 20.1°C (68.2°F), falls in July and August. Weather in July »Weather in August
August, the last month of the summer in Riaz, is also an agreeable month, with an average temperature fluctuating between 8.7°C (47.7°F) and 20.1°C (68.2°F). In Riaz, the months of July and August are known for the peak temperatures, reaching an average high of 20.1°C (68.2°F). Weather in August »Weather in September
The first month of the autumn, September, is also an enjoyable month in Riaz, Switzerland, with an average temperature ranging between min 5.8°C (42.4°F) and max 16°C (60.8°F). September witnesses a gentle descent in average high-temperature, descending from August's agreeable 20.1°C (68.2°F) to a comfortable 16°C (60.8°F). Weather in September »Weather in October
October, the same as September, is a cool autumn month in Riaz, Switzerland, with an average temperature ranging between max 12°C (53.6°F) and min 2.2°C (36°F). Riaz's progression into October involves a minor drop in the average high-temperature, slightly receding from a comfortable 16°C (60.8°F) in September to a cool 12°C (53.6°F). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Riaz, Switzerland, with an average temperature varying between 6.1°C (43°F) and -1.5°C (29.3°F). Transition from October to November is accompanied by a temperature drop, with average high-temperatures decreasing from a cool 12°C (53.6°F) to a chilly 6.1°C (43°F). Weather in November »Weather in December
December, the first month of the winter in Riaz, is still a cold month, with temperature in the range of an average low of -5.2°C (22.6°F) and an average high of 1.9°C (35.4°F). December indicates a minor shift in the average high-temperature, from November's chilly 6.1°C (43°F) to a cold 1.9°C (35.4°F). Weather in December »Updated: Feb 3, 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
With average temperatures fluctuating between a high of 0.6°C (33.1°F) and a low of -7.3°C (18.9°F), January stands out as the coldest month in Riaz.
Throughout the year, there are 96.1 rainfall days, and 311mm (12.24") of precipitation is accumulated.
January through May, October through December are months with snowfall.
The month with the most snowfall in Riaz, Switzerland, is January, when snow falls for 7.5 days and typically aggregates up to 142mm (5.59") of snow.
In Riaz, Switzerland, during the entire year, snow falls for 35.5 days and aggregates up to 551mm (21.69") of snow.
With an average of 5.2h of sunshine, January has the least sunshine of the year in Riaz.
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Riaz, Switzerland.
February is the most humid month, with an average relative humidity of 88%.
The month with the most rainfall in Riaz is May, when the rain falls for 11.6 days and typically aggregates up to 38mm (1.5") of precipitation.
June through September are months without snowfall.
June has the longest days of the year in Riaz, Switzerland, with an average of 15h and 48min of daylight.
The month with the highest UV index is June, with an average maximum UV index of 5.
Riaz sees the average highest temperatures during the months of July and August, peaking at 20.1°C (68.2°F).
The months with the lowest humidity in Riaz, Switzerland, are July and August, with an average relative humidity of 78%.
July has the most sunshine of the year, with an average of 10.4h of sunshine.
The month with the least rainfall is September, when the rain falls for 7.2 days and typically collects 10mm (0.39") of precipitation.
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Riaz, Switzerland, 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.
With an average of 8h and 36min of daylight, December has the shortest days of the year.
Average temperature
Riaz, Switzerland
The warmest months (with the highest average high temperature) are July and August (20.1°C).
The month with the lowest average high temperature is January (0.6°C).
The month with the highest average low temperature is July (8.8°C).
The coldest month (with the lowest average low temperature) is February (-7.7°C).
Average pressure
Riaz, Switzerland
- Average pressure in January:
1019.4mbar - Average pressure in February:
1017.6mbar - Average pressure in March:
1016.9mbar - Average pressure in April:
1015.4mbar - Average pressure in May:
1016mbar - Average pressure in June:
1016.4mbar
- Average pressure in July:
1017mbar - Average pressure in August:
1017.8mbar - Average pressure in September:
1018.4mbar - Average pressure in October:
1018.4mbar - Average pressure in November:
1015.9mbar - Average pressure in December:
1021.1mbar
The month with the highest atmospheric pressure is December (1021.1mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed
Riaz, Switzerland
- Average wind speed in January:
8.9km/h - Average wind speed in February:
8.9km/h - Average wind speed in March:
8.6km/h - Average wind speed in April:
7.6km/h - Average wind speed in May:
7.6km/h - Average wind speed in June:
7.3km/h
- Average wind speed in July:
6.8km/h - Average wind speed in August:
6.5km/h - Average wind speed in September:
7km/h - Average wind speed in October:
7.4km/h - Average wind speed in November:
8.4km/h - Average wind speed in December:
9.4km/h
The windiest month (with the highest average wind speed) is December (9.4km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).
Average humidity
Riaz, Switzerland
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are July and August (78%).
Average rainfall
Riaz, Switzerland
The wettest month (with the highest rainfall) is May (38mm).
The driest month (with the least rainfall) is September (10mm).
Average rainfall days
Riaz, Switzerland
- Average rainfall days in January:
4.3 days - Average rainfall days in February:
4.8 days - Average rainfall days in March:
7.1 days - Average rainfall days in April:
10 days - Average rainfall days in May:
11.6 days - Average rainfall days in June:
11.7 days
- Average rainfall days in July:
11.7 days - Average rainfall days in August:
10 days - Average rainfall days in September:
7.2 days - Average rainfall days in October:
7.1 days - Average rainfall days in November:
4.5 days - Average rainfall days in December:
6.1 days
The months with the highest number of rainy days are June and July (11.7 days).
The month with the least rainy days is January (4.3 days).
Average snowfall
Riaz, Switzerland
The month with the highest snowfall is January (142mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Riaz, Switzerland
- Average snowfall days in January:
7.5 days - Average snowfall days in February:
6 days - Average snowfall days in March:
6.3 days - Average snowfall days in April:
2.6 days - Average snowfall days in May:
0.8 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:
1.7 days - Average snowfall days in November:
5 days - Average snowfall days in December:
5.6 days
The month with the highest number of snowfall days is January (7.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Riaz, Switzerland
- Average daylight in January:
9h and 6min - 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 0min - Average daylight in June:
15h and 48min
- Average daylight in July:
15h and 24min - Average daylight in August:
14h and 6min - 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:
6h and 42min - Average sunshine in April:
8h and 54min - Average sunshine in May:
9h and 12min - Average sunshine in June:
10h and 6min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 36min - Average sunshine in October:
6h and 48min - Average sunshine in November:
5h and 42min - Average sunshine in December:
5h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days
Riaz, Switzerland
- Average sunshine days in January:
21.9 days - Average sunshine days in February:
20.7 days - Average sunshine days in March:
20.2 days - Average sunshine days in April:
18.2 days - Average sunshine days in May:
16.7 days - Average sunshine days in June:
15.2 days
- Average sunshine days in July:
16.6 days - Average sunshine days in August:
18.3 days - Average sunshine days in September:
21 days - Average sunshine days in October:
21.3 days - Average sunshine days in November:
21.1 days - Average sunshine days in December:
21.8 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is June (15.2 days).
Average UV index
Riaz, Switzerland
The month with the highest UV index is June (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
Riaz, Switzerland
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Riaz, Switzerland
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (8km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (8km).
