September weather forecastYli, Norway
September
Weather in September
The first month of the autumn, September, is also a moderate month in Yli, Norway, with an average temperature fluctuating between 13.5°C (56.3°F) and 5.7°C (42.3°F).Temperature
September witnesses a gentle descent in average high-temperature, descending from August's enjoyable 17.4°C (63.3°F) to a still refreshing 13.5°C (56.3°F). In Yli, the average nighttime temperature during September is a wintry 5.7°C (42.3°F).Humidity
In Yli, Norway, the average relative humidity in September is 82%.Rainfall
In Yli, in September, it is raining for 14.4 days, with typically 62mm (2.44") of accumulated precipitation. In Yli, during the entire year, the rain falls for 160 days and collects up to 741mm (29.17") of precipitation.Snowfall
In Yli, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 51min.On the first day of the month, sunrise is at 06:20 and sunset at 20:25. On the last day of September, sunrise is at 07:27 and sunset at 18:58 CEST.
Sunshine
In Yli, the average sunshine in September is 7.2h.UV index
In September, the average daily maximum UV index in Yli is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 3 in September translates into these instructions:
Undertake precautions - Guarding against sun damage is counselled. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Yli, Norway
- Average high temperature in September: 13.5°C
The warmest month (with the highest average high temperature) is July (18.8°C).
The month with the lowest average high temperature is January (-3.2°C).
- Average low temperature in September: 5.7°C
The month with the highest average low temperature is July (9.5°C).
The coldest month (with the lowest average low temperature) is January (-8.1°C).
Average pressure in September
Yli, Norway
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is April (1014.6mbar).
The month with the lowest atmospheric pressure is December (1007.9mbar).
Average wind speed in September
Yli, Norway
- Average wind speed in September: 8.5km/h
The windiest month (with the highest average wind speed) is January (9.5km/h).
The calmest month (with the lowest average wind speed) is August (7.6km/h).
Average humidity in September
Yli, Norway
- Average humidity in September: 82%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Yli, Norway
- Average rainfall in September: 62mm
The wettest month (with the highest rainfall) is July (83mm).
The driest month (with the least rainfall) is April (33mm).
Average rainfall days in September
Yli, Norway
- Average rainfall days in September: 14.4 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in September
Yli, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is January (305mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Yli, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Yli, Norway
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in September: 7h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in September
Yli, Norway
- Average sunshine days in September: 13.1 days
The month with the most sunshine days is April (14 days).
The month with the least sunshine days is February (10 days).
Average UV index in September
Yli, Norway
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are February and October (UV index 1).
Average cloud cover in September
Yli, Norway
- Average cloud cover in September: 50
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is June (Cloud cover 44).
Average visibility in September
Yli, Norway
- Average visibility in September: 8km
The months with the highest visibility are May and June (9km).
The months with the lowest visibility are January, February, March and November (7km).





