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 transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a pleasant 21.8°C (71.2°F) in August to a comfortable 18°C (64.4°F). An average temperature of 10.9°C (51.6°F) is recorded in Altenholz during the nights in September.Humidity
In Altenholz, the average relative humidity in September is 82%.Rainfall
In Altenholz, during September, the rain falls for 10.3 days and regularly aggregates up to 13mm (0.51") of precipitation. In Altenholz, during the entire year, the rain falls for 135.4 days and collects up to 234mm (9.21") of precipitation.Snowfall
In Altenholz, snow does not fall in May through October.Daylight
In Altenholz, Germany, the average length of the day in September is 12h and 42min.On the first day of the month, sunrise is at 06:28 and sunset at 20:10. On the last day of September, sunrise is at 07:20 and sunset at 18:57 CEST.
Sunshine
In September, the average sunshine in Altenholz is 7.4h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
What is the average September temperature in Altenholz?
What is the average humidity in September in Altenholz?
How much does it rain in Altenholz in September?
When it does not snow in Altenholz?
What is the average length of the day in September in Altenholz?
When are sunrise and sunset in September in Altenholz?
How long on average sun shines in September in Altenholz?
What is the UV index intensity in September in Altenholz?
Average temperature in September
Altenholz, Germany
- Average high temperature in September: 18°C
The warmest month (with the highest average high temperature) is August (21.8°C).
The month with the lowest average high temperature is January (2.8°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is January (-0.7°C).
Average pressure in September
Altenholz, Germany
- Average pressure in September: 1016mbar
The month with the highest atmospheric pressure is September (1016mbar).
The month with the lowest atmospheric pressure is November (1011.5mbar).
Average wind speed in September
Altenholz, 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
Altenholz, 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
Altenholz, Germany
- Average rainfall in September: 13mm
The wettest month (with the highest rainfall) is July (30mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in September
Altenholz, Germany
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in September
Altenholz, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is February (24mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Altenholz, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.3 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
Altenholz, Germany
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is August (Average sunshine: 8h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in September
Altenholz, Germany
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in September
Altenholz, Germany
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Altenholz, Germany
- Average cloud cover in September: 49
The month with the most cloud cover is December (Cloud cover 71).
The months with the least cloud cover are April and August (Cloud cover 43).
Average visibility in September
Altenholz, 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).
Altenholz, Germany
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