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
The advent of September brings a slight shift in average high-temperature, moving from a moderately hot 23.8°C (74.8°F) in August to a comfortable 19.1°C (66.4°F). September sees the temperature falling to a mean low of 9.2°C (48.6°F).Humidity
In Siershahn, the average relative humidity in September is 79%.Rainfall
In Siershahn, in September, it is raining for 9.5 days, with typically 16mm (0.63") of accumulated precipitation. Throughout the year, there are 136.4 rainfall days, and 244mm (9.61") of precipitation is accumulated.Snowfall
In Siershahn, snow does not fall in May through October.Daylight
In Siershahn, the average length of the day in September is 12h and 37min.On the first day of September, sunrise is at 06:44 and sunset at 20:13. On the last day of the month, sunrise is at 07:28 and sunset at 19:09 CEST.
Sunshine
In Siershahn, the average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 3 during September morphs into the following directions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Siershahn?
What is the average humidity in September in Siershahn?
How much does it rain in Siershahn in September?
When it does not snow in Siershahn?
What is the average length of the day in September in Siershahn?
What time are sunrise and sunset in September in Siershahn?
How long on average sun shines in September in Siershahn?
What is the UV index reading in September in Siershahn?
Average temperature in September
Siershahn, Germany
- Average high temperature in September: 19.1°C
The warmest month (with the highest average high temperature) is July (24°C).
The month with the lowest average high temperature is January (3.3°C).
- Average low temperature in September: 9.2°C
The month with the highest average low temperature is August (12.5°C).
The coldest month (with the lowest average low temperature) is February (-1.3°C).
Average pressure in September
Siershahn, Germany
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is September (1017.9mbar).
The month with the lowest atmospheric pressure is November (1014.1mbar).
Average wind speed in September
Siershahn, Germany
- Average wind speed in September: 8.4km/h
The windiest month (with the highest average wind speed) is February (11.2km/h).
The calmest month (with the lowest average wind speed) is August (8.1km/h).
Average humidity in September
Siershahn, 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 (73%).
Average rainfall in September
Siershahn, Germany
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is August (33mm).
The driest month (with the least rainfall) is January (15mm).
Average rainfall days in September
Siershahn, Germany
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in September
Siershahn, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (24mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Siershahn, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Siershahn, 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 6min).
- 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: 3h and 24min).
Average sunshine days in September
Siershahn, Germany
- Average sunshine days in September: 17.5 days
The months with the most sunshine days are April, September and October (17.5 days).
The month with the least sunshine days is December (12.4 days).
Average UV index in September
Siershahn, 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 January, February, November and December (UV index 2).
Average cloud cover in September
Siershahn, Germany
- Average cloud cover in September: 40
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Siershahn, Germany
- Average visibility in September: 8km
The months with the highest visibility are April and August (9km).
The months with the lowest visibility are January, February, October, November and December (7km).
