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
September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a warm 23.2°C (73.8°F) in August to a refreshing 18.8°C (65.8°F). Nighttime temperature dips to a mean of 9°C (48.2°F) during September.Humidity
In September, the average relative humidity is 79%.Rainfall
In Allna, during September, the rain falls for 14 days and regularly aggregates up to 32mm (1.26") of precipitation. In Allna, Germany, during the entire year, the rain falls for 166.7 days and collects up to 424mm (16.69") of precipitation.Snowfall
In Allna, Germany, snow does not fall in June through September.Daylight
In Allna, Germany, the average length of the day in September is 12h and 38min.On the first day of September in Allna, sunrise is at 06:40 and sunset at 20:10. On the last day of the month, sunrise is at 07:24 and sunset at 19:05 CEST.
Sunshine
In Allna, the average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 3 in September translates into this advice:
Exercise prevention - Precautions against solar damage are endorsed. To guard against the harmful effects of the Sun, minimize exposure during midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
What is the usual temperature for Allna in September?
What is the average humidity in September in Allna?
How much does it rain in Allna in September?
When it does not snow in Allna?
Does it snow in Allna in September?
What is the average length of the day in September in Allna?
When are sunrise and sunset in September in Allna?
How many hours of sunshine does Allna have in September?
What is the UV index reading in September in Allna?
Average temperature in September
Allna, Germany
- Average high temperature in September: 18.8°C
The warmest month (with the highest average high temperature) is July (23.3°C).
The month with the lowest average high temperature is January (2.5°C).
- Average low temperature in September: 9°C
The month with the highest average low temperature is August (12.5°C).
The coldest month (with the lowest average low temperature) is January (-2°C).
Average pressure in September
Allna, Germany
- Average pressure in September: 1017.8mbar
The month with the highest atmospheric pressure is September (1017.8mbar).
The month with the lowest atmospheric pressure is November (1014.1mbar).
Average wind speed in September
Allna, Germany
- Average wind speed in September: 8.7km/h
The windiest month (with the highest average wind speed) is December (12.3km/h).
The calmest month (with the lowest average wind speed) is August (8.5km/h).
Average humidity in September
Allna, Germany
- Average humidity in September: 79%
The months with the highest relative humidity are January and December (90%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in September
Allna, Germany
- Average rainfall in September: 32mm
The wettest months (with the highest rainfall) are July and August (57mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Allna, Germany
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is February (9.8 days).
Average snowfall in September
Allna, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is December (51mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Allna, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Allna, Germany
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).
Average sunshine days in September
Allna, Germany
- Average sunshine days in September: 12.8 days
The month with the most sunshine days is October (16.9 days).
The month with the least sunshine days is June (8.6 days).
Average UV index in September
Allna, Germany
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in September
Allna, Germany
- Average cloud cover in September: 41
The month with the most cloud cover is December (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in September
Allna, Germany
- Average visibility in September: 8km
The months with the highest visibility are April, June, July and August (9km).
The months with the lowest visibility are January, February, October, November and December (7km).
Allna, Germany
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