Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
During the shift to September, a minor reduction in average high-temperature is observed, shifting from a refreshing 13.9°C (57°F) in August to a chilly 9.1°C (48.4°F). In Røyrvik, the average low-temperature during the month of September is a wintry 3.7°C (38.7°F).Humidity
The average relative humidity in September is 86%.Rainfall
In Røyrvik, during September, the rain falls for 19.9 days and regularly aggregates up to 105mm (4.13") of precipitation. In Røyrvik, during the entire year, the rain falls for 163.7 days and collects up to 1098mm (43.23") of precipitation.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 1.1 snowfall days, it receives 31mm (1.22") of snow. In Røyrvik, during the entire year, snow falls for 154 days and aggregates up to 3753mm (147.76") of snow.Daylight
In Røyrvik, the average length of the day in September is 13h and 3min.On the first day of September, sunrise is at 05:47 and sunset at 20:23. On the last day of the month, sunrise is at 07:13 and sunset at 18:37 CEST.
Sunshine
In Røyrvik, the average sunshine in September is 5h.UV index
In Røyrvik, the average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 2 suggests this advice:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How many days does it rain in September in Røyrvik?
When does it start snowing?
How many hours of daylight does Røyrvik have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Røyrvik have in September?
What is the UV index reading in September?
Average temperature in September
Røyrvik, Norway
- Average high temperature in September: 9.1°C
The warmest month (with the highest average high temperature) is July (15.3°C).
The month with the lowest average high temperature is January (-6.3°C).
- Average low temperature in September: 3.7°C
The month with the highest average low temperature is July (7.8°C).
The coldest month (with the lowest average low temperature) is February (-12.3°C).
Average pressure in September
Røyrvik, Norway
- Average pressure in September: 1010.5mbar
The month with the highest atmospheric pressure is May (1014.5mbar).
The month with the lowest atmospheric pressure is December (1003.5mbar).
Average wind speed in September
Røyrvik, Norway
- Average wind speed in September: 11.4km/h
The windiest month (with the highest average wind speed) is March (13.5km/h).
The calmest month (with the lowest average wind speed) is August (9.7km/h).
Average humidity in September
Røyrvik, Norway
- Average humidity in September: 86%
The months with the highest relative humidity are January, February and April (94%).
The month with the lowest relative humidity is June (76%).
Average rainfall in September
Røyrvik, Norway
- Average rainfall in September: 105mm
The wettest month (with the highest rainfall) is January (141mm).
The driest month (with the least rainfall) is June (67mm).
Average rainfall days in September
Røyrvik, Norway
- Average rainfall days in September: 19.9 days
The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
Røyrvik, Norway
- Average snowfall in September: 31mm
The month with the highest snowfall is January (716mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Røyrvik, Norway
- Average snowfall days in September: 1.1 days
The month with the highest number of snowfall days is March (24.6 days).
The month with the least snowfall days is August (0 days).
Average daylight in September /
Average sunshine in September
Røyrvik, Norway
- Average daylight in September: 13h and 1min
The month with the longest days is June (Average daylight: 21h and 30min).
The month with the shortest days is December (Average daylight: 4h and 0min).
- Average sunshine in September: 5h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is December (Average sunshine: 1h and 6min).
Average sunshine days in September
Røyrvik, Norway
- Average sunshine days in September: 7.3 days
The month with the most sunshine days is November (8.9 days).
The month with the least sunshine days is June (5.4 days).
Average UV index in September
Røyrvik, Norway
- Average UV index in September: 2
The months with the highest UV index are June and July (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
Røyrvik, Norway
- Average cloud cover in September: 66
The month with the most cloud cover is March (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 58).
Average visibility in September
Røyrvik, Norway
- Average visibility in September: 8km
The months with the highest visibility are June and July (9km).
The month with the lowest visibility is April (5km).
