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
A minor decrease in the average high-temperature is observed during September, shifting from a moderate 13.5°C (56.3°F) in August to a chilly 9.1°C (48.4°F). An average nighttime temperature of 3.6°C (38.5°F) is witnessed in Bjerka throughout September.Humidity
In Bjerka, the average relative humidity in September is 86%.Rainfall
In September, the rain falls for 20.7 days. Throughout September, 137mm (5.39") of precipitation is accumulated. Throughout the year, there are 181.1 rainfall days, and 1306mm (51.42") of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in Bjerka. September is the first month it typically snows in Bjerka. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. In Bjerka, during the entire year, snow falls for 116.7 days and aggregates up to 3043mm (119.8") of snow.Daylight
The average length of the day in September in Bjerka, Norway, is 13h and 7min.On the first day of September, sunrise is at 05:41 and sunset at 20:27. On the last day of the month, sunrise is at 07:14 and sunset at 18:34 CEST.
Sunshine
In September, the average sunshine in Bjerka is 4.8h.UV index
The average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 2 during September leads to these instructions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Bjerka?
What is the average humidity in September in Bjerka?
How many days does it rain in September in Bjerka?
When does it start to snow in Bjerka?
What is the average length of the day in September in Bjerka?
What time are sunrise and sunset in September in Bjerka?
How long on average sun shines in September in Bjerka?
What is the UV index intensity in September in Bjerka?
Average temperature in September
Bjerka, Norway
- Average high temperature in September: 9.1°C
The warmest month (with the highest average high temperature) is July (14.8°C).
The month with the lowest average high temperature is January (-6.7°C).
- Average low temperature in September: 3.6°C
The month with the highest average low temperature is July (7.9°C).
The coldest month (with the lowest average low temperature) is February (-11.8°C).
Average pressure in September
Bjerka, Norway
- Average pressure in September: 1009.7mbar
The month with the highest atmospheric pressure is May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1002.7mbar).
Average wind speed in September
Bjerka, Norway
- Average wind speed in September: 10.9km/h
The windiest month (with the highest average wind speed) is January (14.1km/h).
The calmest month (with the lowest average wind speed) is August (9.1km/h).
Average humidity in September
Bjerka, Norway
- Average humidity in September: 86%
The month with the highest relative humidity is April (93%).
The month with the lowest relative humidity is July (77%).
Average rainfall in September
Bjerka, Norway
- Average rainfall in September: 137mm
The wettest month (with the highest rainfall) is March (160mm).
The driest month (with the least rainfall) is June (69mm).
Average rainfall days in September
Bjerka, Norway
- Average rainfall days in September: 20.7 days
The month with the highest number of rainy days is August (21.2 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in September
Bjerka, Norway
- Average snowfall in September: 1mm
The month with the highest snowfall is March (626mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Bjerka, Norway
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is March (21.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Bjerka, Norway
- Average daylight in September: 13h and 1min
The month with the longest days is July (Average daylight: 19h and 30min).
The month with the shortest days is December (Average daylight: 3h and 0min).
- Average sunshine in September: 4h and 5min
The month with the most sunshine is July (Average sunshine: 7h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 12min).
Average sunshine days in September
Bjerka, Norway
- Average sunshine days in September: 8.1 days
The month with the most sunshine days is October (9.9 days).
The month with the least sunshine days is March (7 days).
Average UV index in September
Bjerka, Norway
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, March, April, October, November and December (UV index 1).
Average cloud cover in September
Bjerka, Norway
- Average cloud cover in September: 68
The month with the most cloud cover is March (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 60).
Average visibility in September
Bjerka, Norway
- Average visibility in September: 8km
The months with the highest visibility are June, July and August (9km).
The month with the lowest visibility is April (6km).
