September weather forecastUndredal, Norway
September
Weather in September
The first month of the autumn, September, is still a chilly month in Undredal, Norway, with an average temperature ranging between max 9°C (48.2°F) and min 3.2°C (37.8°F).Temperature
September ushers in a minute temperature change, with average high-temperatures reducing from August's moderate 13.6°C (56.5°F) to a frosty 9°C (48.2°F). In Undredal, September nights witness a steady temperature drop to a cold 3.2°C (37.8°F).Humidity
The average relative humidity in September is 83%.Rainfall
In Undredal, in September, it is raining for 16.5 days, with typically 68mm (2.68") of accumulated precipitation. Throughout the year, there are 189.4 rainfall days, and 1022mm (40.24") of precipitation is accumulated.Snowfall
In Undredal, snow does not fall in June through September.Daylight
In Undredal, the average length of the day in September is 12h and 53min.On the first day of the month, sunrise is at 06:25 and sunset at 20:37. On the last day of September, sunrise is at 07:36 and sunset at 19:06 CEST.
Sunshine
In Undredal, the average sunshine in September is 6.7h.UV index
In September, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 2 during September leads to these instructions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Avoiding the Sun during its peak radiation time around midday is a healthy practice. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Undredal, Norway
- Average high temperature in September: 9°C
The warmest month (with the highest average high temperature) is July (14.9°C).
The month with the lowest average high temperature is January (-6°C).
- Average low temperature in September: 3.2°C
The month with the highest average low temperature is July (6.8°C).
The coldest month (with the lowest average low temperature) is January (-11.8°C).
Average pressure in September
Undredal, Norway
- Average pressure in September: 1011.9mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1006.3mbar).
Average wind speed in September
Undredal, Norway
- Average wind speed in September: 9.5km/h
The windiest month (with the highest average wind speed) is January (10.9km/h).
The calmest month (with the lowest average wind speed) is August (7.8km/h).
Average humidity in September
Undredal, Norway
- Average humidity in September: 83%
The month with the highest relative humidity is December (93%).
The months with the lowest relative humidity are June and July (75%).
Average rainfall in September
Undredal, Norway
- Average rainfall in September: 68mm
The wettest month (with the highest rainfall) is December (143mm).
The driest month (with the least rainfall) is June (54mm).
Average rainfall days in September
Undredal, Norway
- Average rainfall days in September: 16.5 days
The month with the highest number of rainy days is August (18.6 days).
The month with the least rainy days is February (11.7 days).
Average snowfall in September
Undredal, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is January (618mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Undredal, Norway
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Undredal, Norway
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 19h and 6min).
The month with the shortest days is December (Average daylight: 5h and 42min).
- Average sunshine in September: 6h and 42min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in September
Undredal, Norway
- Average sunshine days in September: 11.7 days
The month with the most sunshine days is October (13.1 days).
The month with the least sunshine days is December (5.9 days).
Average UV index in September
Undredal, Norway
- Average UV index in September: 2
The months with the highest UV index are May, June, July and August (UV index 3).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in September
Undredal, Norway
- Average cloud cover in September: 57
The month with the most cloud cover is March (Cloud cover 68).
The month with the least cloud cover is June (Cloud cover 50).
Average visibility in September
Undredal, Norway
- Average visibility in September: 8km
The months with the highest visibility are June, July and August (9km).
The months with the lowest visibility are January, February, March, April and December (6km).
