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
The start of September signals a gentle decrease in the average high-temperature, transitioning from an agreeable 22.3°C (72.1°F) in August to a comfortable 18.5°C (65.3°F). Apen encounters an average low-temperature of 10.8°C (51.4°F) during September nights.Humidity
In Apen, Germany, the average relative humidity in September is 82%.Rainfall
The month with the least rainfall is September, when the rain falls for 9.4 days and typically collects 12mm (0.47") of precipitation.Snowfall
In Apen, snow does not fall in April through October.Daylight
In Apen, Germany, the average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 06:39 and sunset at 20:17. On the last day of September, in Apen, Germany, sunrise is at 07:29 and sunset at 19:07 CEST.
Sunshine
In September, the average sunshine is 7.5h.UV index
The average daily maximum UV index in September in Apen is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Around midday, solar radiation is most harmful; hence, exposure should be limited. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What are September temperatures in Apen?
What is the average humidity in September in Apen?
What is the driest month in Apen?
How many days does it rain in September in Apen?
When it does not snow in Apen?
How many hours of daylight does Apen have in September?
When is the sunrise / sunset in September in Apen?
How long on average sun shines in September in Apen?
What is the UV index reading in September in Apen?
Average temperature in September
Apen, Germany
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is August (22.3°C).
The month with the lowest average high temperature is January (3.6°C).
- Average low temperature in September: 10.8°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is February (-0.1°C).
Average pressure in September
Apen, Germany
- Average pressure in September: 1016.6mbar
The month with the highest atmospheric pressure is September (1016.6mbar).
The month with the lowest atmospheric pressure is November (1011.7mbar).
Average wind speed in September
Apen, Germany
- Average wind speed in September: 13.2km/h
The windiest month (with the highest average wind speed) is December (19km/h).
The calmest month (with the lowest average wind speed) is August (12.6km/h).
Average humidity in September
Apen, Germany
- Average humidity in September: 82%
The month with the highest relative humidity is December (90%).
The months with the lowest relative humidity are April and August (78%).
Average rainfall in September
Apen, Germany
- Average rainfall in September: 12mm
The wettest month (with the highest rainfall) is June (34mm).
The driest month (with the least rainfall) is September (12mm).
Average rainfall days in September
Apen, Germany
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (9 days).
Average snowfall in September
Apen, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (18mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Apen, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Apen, Germany
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 7h and 3min
The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in September
Apen, Germany
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in September
Apen, Germany
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Apen, Germany
- Average cloud cover in September: 47
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 41).
Average visibility in September
Apen, Germany
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Apen, Germany
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