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 sea temperature 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
With the onset of September, Olderdalen experiences a modest temperature adjustment, with the average high-temperature gently receding from a cool 12.2°C (54°F) in August to a frosty 8.8°C (47.8°F). A steady low-temperature average of 5.3°C (41.5°F) is logged during September, reflecting a modest dip from daytime readings.Humidity
The average relative humidity in September is 82%.Rainfall
In September, the rain falls for 17.9 days. Throughout September, 67mm (2.64") of precipitation is accumulated. In Olderdalen, during the entire year, the rain falls for 161.9 days and collects up to 769mm (30.28") of precipitation.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 1 snowfall days, it receives 27mm (1.06") of snow. In Olderdalen, during the entire year, snow falls for 121.3 days and aggregates up to 2376mm (93.54") of snow.Sea temperature
In September, the average sea temperature in Olderdalen is 9.8°C (49.6°F).Note: Dipping in 9.8°C (49.6°F) at temperatures less than 10°C (50°F) without proper gear can lead to pronounced cold shock and breathing difficulties.
Daylight
The average length of the day in September is 13h and 20min.On the first day of the month, sunrise is at 04:58 and sunset at 20:17. On the last day of September, sunrise is at 06:51 and sunset at 18:04 CEST.
Sunshine
The average sunshine in September is 6.9h.UV index
In Olderdalen, the average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.Note: The UV index of 2 in September translates into these instructions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Note this! The Sun's UV radiation can nearly be doubled by the reflection off 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 much does it rain in September?
When does it start snowing?
What is the sea water temperature in September?
How many hours of daylight does Olderdalen have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Olderdalen, Norway
- Average high temperature in September: 8.8°C
The warmest month (with the highest average high temperature) is July (12.8°C).
The month with the lowest average high temperature is January (-4.8°C).
- Average low temperature in September: 5.3°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 (-9.1°C).
Average pressure in September
Olderdalen, Norway
- Average pressure in September: 1009.2mbar
The month with the highest atmospheric pressure is May (1013.9mbar).
The month with the lowest atmospheric pressure is December (1001.2mbar).
Average wind speed in September
Olderdalen, Norway
- Average wind speed in September: 13.3km/h
The windiest month (with the highest average wind speed) is January (20.4km/h).
The calmest month (with the lowest average wind speed) is July (10.3km/h).
Average humidity in September
Olderdalen, Norway
- Average humidity in September: 82%
The month with the highest relative humidity is April (87%).
The months with the lowest relative humidity are July and August (80%).
Average rainfall in September
Olderdalen, Norway
- Average rainfall in September: 67mm
The wettest month (with the highest rainfall) is March (79mm).
The driest month (with the least rainfall) is May (57mm).
Average rainfall days in September
Olderdalen, Norway
- Average rainfall days in September: 17.9 days
The month with the highest number of rainy days is July (20.6 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in September
Olderdalen, Norway
- Average snowfall in September: 27mm
The month with the highest snowfall is March (470mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Olderdalen, Norway
- Average snowfall days in September: 1 days
The month with the highest number of snowfall days is March (22.2 days).
The months with the least snowfall days are July and August (0 days).
Average sea temperature in September
Olderdalen, Norway
- Average sea temperature in September: 9.8°C
The best month for swimming (with the highest average sea temperature) is August (11.3°C).
The coldest month (with the lowest average sea temperature) is March (4.1°C).
Average daylight in September /
Average sunshine in September
Olderdalen, Norway
- Average daylight in September: 13h and 2min
The month with the longest days is August (Average daylight: 18h and 0min).
The months with the shortest days are June and December (Average daylight: 0h and 0min).
- Average sunshine in September: 6h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 0h and 24min).
Average sunshine days in September
Olderdalen, Norway
- Average sunshine days in September: 7.6 days
The month with the most sunshine days is January (12.4 days).
The month with the least sunshine days is March (6.2 days).
Average UV index in September
Olderdalen, Norway
- Average UV index in September: 2
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are March and April (UV index 1).
Average cloud cover in September
Olderdalen, Norway
- Average cloud cover in September: 54
The month with the most cloud cover is March (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 53).
Average visibility in September
Olderdalen, Norway
- Average visibility in September: 9km
The months with the highest visibility are January, February, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are March, April and May (8km).
