September weather forecastIragna, Switzerland
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Iragna, Switzerland, with an average temperature varying between 7.5°C (45.5°F) and 17.1°C (62.8°F).Temperature
The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a pleasant 21.4°C (70.5°F) to a comfortable 17.1°C (62.8°F). Iragna cools down to an average low-temperature of 7.5°C (45.5°F) throughout the month of September.Humidity
The average relative humidity in September is 78%.Rainfall
In September, in Iragna, the rain falls for 12.2 days. Throughout September, 32mm (1.26") of precipitation is accumulated. Throughout the year, in Iragna, there are 137.8 rainfall days, and 669mm (26.34") of precipitation is accumulated.Snowfall
In Iragna, snow does not fall in May through October.Daylight
The average length of the day in September in Iragna is 12h and 33min.On the first day of the month, sunrise is at 06:45 and sunset at 20:02. On the last day of September, sunrise is at 07:22 and sunset at 19:05 CEST.
Sunshine
In September, the average sunshine is 9.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Iragna, Switzerland
- Average high temperature in September: 17.1°C
The warmest month (with the highest average high temperature) is July (21.9°C).
The month with the lowest average high temperature is January (1.6°C).
- Average low temperature in September: 7.5°C
The months with the highest average low temperature are July and August (11.1°C).
The coldest month (with the lowest average low temperature) is February (-5.1°C).
Average pressure in September
Iragna, Switzerland
- Average pressure in September: 1017.8mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is April (1015.1mbar).
Average wind speed in September
Iragna, Switzerland
- Average wind speed in September: 6.4km/h
The windiest month (with the highest average wind speed) is February (7.4km/h).
The calmest month (with the lowest average wind speed) is November (5.7km/h).
Average humidity in September
Iragna, Switzerland
- Average humidity in September: 78%
The month with the highest relative humidity is November (83%).
The month with the lowest relative humidity is July (75%).
Average rainfall in September
Iragna, Switzerland
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is November (118mm).
The driest month (with the least rainfall) is January (15mm).
Average rainfall days in September
Iragna, Switzerland
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Iragna, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is February (12mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Iragna, Switzerland
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in September /
Average sunshine in September
Iragna, Switzerland
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is November (Average sunshine: 5h and 30min).
Average sunshine days in September
Iragna, Switzerland
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is January (23.7 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Iragna, Switzerland
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Iragna, Switzerland
- Average cloud cover in September: 32
The month with the most cloud cover is November (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in September
Iragna, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, June, July, August and December (9km).
The months with the lowest visibility are September, October and November (8km).
