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
Alden's average high-temperature in September is a still moderate 13.5°C (56.3°F), marking an insignificant difference from the 15.2°C (59.4°F) of August. A modest dip in temperatures to an average of 11.7°C (53.1°F) is observed throughout Alden's September nights.Humidity
In Alden, the average relative humidity in September is 78%.Rainfall
In Alden, in September, it is raining for 19.7 days, with typically 94mm (3.7") of accumulated precipitation. Throughout the year, there are 210.3 rainfall days, and 1160mm (45.67") of precipitation is accumulated.Snowfall
In Alden, snow does not fall in June through September.Daylight
In Alden, the average length of the day in September is 12h and 54min.On the first day of the month, sunrise is at 06:33 and sunset at 20:47. On the last day of September, sunrise is at 07:46 and sunset at 19:15 CEST.
Sunshine
In September, the average sunshine is 6.1h.UV index
In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A daily high UV index of 3 in September leads to these guidelines:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Alden in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Alden have in September?
What is the UV index reading in September?
Average temperature in September
Alden, Norway
- Average high temperature in September: 13.5°C
The warmest month (with the highest average high temperature) is August (15.2°C).
The month with the lowest average high temperature is February (3.8°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is August (13°C).
The coldest month (with the lowest average low temperature) is February (2.2°C).
Average pressure in September
Alden, Norway
- Average pressure in September: 1011mbar
The month with the highest atmospheric pressure is May (1014.6mbar).
The month with the lowest atmospheric pressure is December (1003.9mbar).
Average wind speed in September
Alden, Norway
- Average wind speed in September: 23.4km/h
The windiest month (with the highest average wind speed) is December (29.7km/h).
The calmest month (with the lowest average wind speed) is July (18.5km/h).
Average humidity in September
Alden, Norway
- Average humidity in September: 78%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is November (72%).
Average rainfall in September
Alden, Norway
- Average rainfall in September: 94mm
The wettest month (with the highest rainfall) is October (147mm).
The driest month (with the least rainfall) is June (50mm).
Average rainfall days in September
Alden, Norway
- Average rainfall days in September: 19.7 days
The month with the highest number of rainy days is December (21.4 days).
The months with the least rainy days are April and June (14.3 days).
Average snowfall in September
Alden, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is February (80mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Alden, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Alden, Norway
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 19h and 12min).
The month with the shortest days is December (Average daylight: 5h and 36min).
- Average sunshine in September: 6h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).
Average sunshine days in September
Alden, Norway
- Average sunshine days in September: 9.4 days
The month with the most sunshine days is June (14.2 days).
The month with the least sunshine days is December (6.4 days).
Average UV index in September
Alden, 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, October, November and December (UV index 2).
Average cloud cover in September
Alden, Norway
- Average cloud cover in September: 58
The months with the most cloud cover are January and December (Cloud cover 67).
The month with the least cloud cover is May (Cloud cover 48).
Average visibility in September
Alden, Norway
- Average visibility in September: 10km
The months with the highest visibility are May, June, July and September (10km).
The months with the lowest visibility are January, February, March, April, August, October, November and December (9km).
