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 signals a slight drop in average high-temperature, sliding from August's moderately hot 23.2°C (73.8°F) to a comfortable 18.8°C (65.8°F). Altkalen witnesses an average low-temperature of 10.9°C (51.6°F) throughout the month of September.Humidity
In Altkalen, Germany, the average relative humidity in September is 77%.Rainfall
In Altkalen, in September, it is raining for 13.3 days, with typically 29mm (1.14") of accumulated precipitation. Throughout the year, in Altkalen, there are 165.6 rainfall days, and 405mm (15.94") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day in Altkalen is 12h and 41min.On the first day of September, sunrise is at 06:18 and sunset at 19:59. On the last day of the month, sunrise is at 07:10 and sunset at 18:47 CEST.
Sunshine
In Altkalen, the average sunshine in September is 7.9h.UV index
In Altkalen, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 4 in September translates into these instructions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
What are September temperatures in Altkalen?
What is the average humidity in September in Altkalen?
How much does it rain in Altkalen in September?
When it does not snow in Altkalen?
What is the average length of the day in September in Altkalen?
When are sunrise and sunset in September in Altkalen?
How long on average sun shines in September in Altkalen?
What is the UV index intensity in September in Altkalen?
Average temperature in September
Altkalen, Germany
- Average high temperature in September: 18.8°C
The warmest month (with the highest average high temperature) is August (23.2°C).
The month with the lowest average high temperature is January (2.4°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-1.1°C).
Average pressure in September
Altkalen, Germany
- Average pressure in September: 1016.2mbar
The month with the highest atmospheric pressure is September (1016.2mbar).
The month with the lowest atmospheric pressure is November (1012.5mbar).
Average wind speed in September
Altkalen, Germany
- Average wind speed in September: 13.3km/h
The windiest month (with the highest average wind speed) is December (18.2km/h).
The calmest month (with the lowest average wind speed) is August (12.6km/h).
Average humidity in September
Altkalen, Germany
- Average humidity in September: 77%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Altkalen, Germany
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is July (51mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Altkalen, Germany
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in September
Altkalen, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (48mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Altkalen, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.7 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
Altkalen, Germany
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).
Average sunshine days in September
Altkalen, Germany
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is April (15.8 days).
The month with the least sunshine days is August (10.2 days).
Average UV index in September
Altkalen, 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 and November (UV index 1).
Average cloud cover in September
Altkalen, Germany
- Average cloud cover in September: 43
The month with the most cloud cover is December (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Altkalen, Germany
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (9km).
The months with the lowest visibility are January and November (8km).
Altkalen, Germany
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