September weather forecastLillehammer, Norway
September
Weather in September
September presents Lillehammer cloaked in the breathtaking colors of autumn. Trees painted in warm hues provide a striking contrast against the clear blue sky. As the city transitions from summer, temperatures begin to drop. This month records a decline in daylight hours while witnessing an increase in cloudiness at 53%. As autumn progresses, the weather starts to grow colder, anticipating the onset of winter.Temperature
September's arrival in Lillehammer signals a moderate reduction in the average high-temperature, easing from a comfortable 16.6°C (61.9°F) in August to a fresh 12°C (53.6°F). In September, Lillehammer reports a consistent average low-temperature of 4.2°C (39.6°F) during the nights.Humidity
In Lillehammer, the average relative humidity in September is 82%.Rainfall
In Lillehammer, during September, the rain falls for 13.4 days and regularly aggregates up to 44mm (1.73") of precipitation. Throughout the year, there are 139.3 rainfall days, and 535mm (21.06") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 54min.On the first day of September, sunrise is at 06:11 and sunset at 20:24. On the last day of the month, sunrise is at 07:23 and sunset at 18:52 CEST.
Sunshine
In September, the average sunshine is 7.1h.UV index
In September, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.Note: A maximum high UV index of 2 in September translates into the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lillehammer, Norway
- Average high temperature in September: 12°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (-5.8°C).
- Average low temperature in September: 4.2°C
The month with the highest average low temperature is July (8.3°C).
The coldest month (with the lowest average low temperature) is January (-11.5°C).
Average pressure in September
Lillehammer, Norway
- Average pressure in September: 1012.3mbar
The month with the highest atmospheric pressure is April (1014.6mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).
Average wind speed in September
Lillehammer, Norway
- Average wind speed in September: 9km/h
The windiest month (with the highest average wind speed) is June (9.3km/h).
The calmest month (with the lowest average wind speed) is November (7.6km/h).
Average humidity in September
Lillehammer, Norway
- Average humidity in September: 82%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is June (70%).
Average rainfall in September
Lillehammer, Norway
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is July (78mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in September
Lillehammer, Norway
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is July (20.9 days).
The month with the least rainy days is February (3.5 days).
Average snowfall in September
Lillehammer, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is January (237mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Lillehammer, Norway
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and March (16.3 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lillehammer, Norway
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 19h and 12min).
The month with the shortest days is December (Average daylight: 5h and 42min).
- Average sunshine in September: 7h and 6min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 42min).
Average sunshine days in September
Lillehammer, Norway
- Average sunshine days in September: 14 days
The month with the most sunshine days is December (14.2 days).
The month with the least sunshine days is July (7.2 days).
Average UV index in September
Lillehammer, Norway
- Average UV index in September: 2
The months with the highest UV index are May, June and July (UV index 4).
The months with the lowest UV index are January, February, March, October and December (UV index 1).
Average cloud cover in September
Lillehammer, Norway
- Average cloud cover in September: 53
The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is June (Cloud cover 48).
Average visibility in September
Lillehammer, 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 (6km).
