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
Weather in September
Temperature
As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from a refreshing 18.6°C (65.5°F) to a mild 14.6°C (58.3°F). In September, the temperature drops to an average of 7°C (44.6°F) at night.Humidity
In Holmen, the average relative humidity in September is 80%.Rainfall
In Holmen, during September, the rain falls for 15 days and regularly aggregates up to 68mm (2.68") of precipitation. In Holmen, Norway, during the entire year, the rain falls for 142.4 days and collects up to 654mm (25.75") of precipitation.Snowfall
In Holmen, snow does not fall in June through September.Daylight
The average length of the day in September in Holmen, Norway, is 12h and 52min.On the first day of September, sunrise is at 06:14 and sunset at 20:20. On the last day of the month, sunrise is at 07:22 and sunset at 18:53 CEST.
Sunshine
In September, the average sunshine is 7.2h.UV index
In Holmen, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 3 during September translates into the following directions:
Be vigilant - A duty to shield skin and eyes from injury exists. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
What is the temperature in September in Holmen?
What is the average humidity in September in Holmen?
How many days does it rain in September in Holmen?
When it does not snow in Holmen?
Does it snow in Holmen in September?
What is the average length of the day in September in Holmen?
What time are sunrise and sunset in September in Holmen?
How many hours of sunshine does Holmen have in September?
How high is the UV index in September in Holmen?
Average temperature in September
Holmen, Norway
- Average high temperature in September: 14.6°C
The warmest month (with the highest average high temperature) is July (20.1°C).
The month with the lowest average high temperature is January (-2.8°C).
- Average low temperature in September: 7°C
The month with the highest average low temperature is July (10.8°C).
The coldest month (with the lowest average low temperature) is February (-8.2°C).
Average pressure in September
Holmen, Norway
- Average pressure in September: 1012.5mbar
The month with the highest atmospheric pressure is April (1014.5mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in September
Holmen, Norway
- Average wind speed in September: 9.1km/h
The windiest month (with the highest average wind speed) is May (9.3km/h).
The calmest month (with the lowest average wind speed) is August (8.1km/h).
Average humidity in September
Holmen, Norway
- Average humidity in September: 80%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is May (70%).
Average rainfall in September
Holmen, Norway
- Average rainfall in September: 68mm
The wettest month (with the highest rainfall) is July (79mm).
The driest months (with the least rainfall) are January and April (27mm).
Average rainfall days in September
Holmen, Norway
- Average rainfall days in September: 15 days
The month with the highest number of rainy days is July (22 days).
The months with the least rainy days are January and February (2.8 days).
Average snowfall in September
Holmen, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is March (238mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Holmen, Norway
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Holmen, Norway
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 6min).
- Average sunshine in September: 7h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).
Average sunshine days in September
Holmen, Norway
- Average sunshine days in September: 12.3 days
The month with the most sunshine days is January (16.9 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in September
Holmen, 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 January, February, March and December (UV index 1).
Average cloud cover in September
Holmen, Norway
- Average cloud cover in September: 51
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is June (Cloud cover 47).
Average visibility in September
Holmen, 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 and March (6km).
Holmen, Norway
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