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 transition into September involves a small decrease in the average high-temperature, dipping slightly from a pleasant 22.3°C (72.1°F) in August to a comfortable 18.2°C (64.8°F). September witnesses an average nighttime temperature of 11.2°C (52.2°F) in Sterley.Humidity
In September, the average relative humidity in Sterley is 80%.Rainfall
In Sterley, in September, it is raining for 13.7 days, with typically 31mm (1.22") of accumulated precipitation. Throughout the year, there are 167.7 rainfall days, and 403mm (15.87") of precipitation is accumulated.Snowfall
In Sterley, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 41min.On the first day of the month, sunrise is at 06:26 and sunset at 20:06. On the last day of September, in Sterley, sunrise is at 07:17 and sunset at 18:55 CEST.
Sunshine
The average sunshine in September in Sterley is 8h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, an average UV index of 4 transforms into the following instructions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Sterley in September?
What is the average humidity in September in Sterley?
How many days does it rain in September in Sterley?
When it does not snow in Sterley?
How many hours of daylight does Sterley have in September?
What time are sunrise and sunset in September in Sterley?
How long on average sun shines in September in Sterley?
What is the UV index intensity in September in Sterley?
Average temperature in September
Sterley, Germany
- Average high temperature in September: 18.2°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 (2.6°C).
- Average low temperature in September: 11.2°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is February (-0.8°C).
Average pressure in September
Sterley, 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 (1011.9mbar).
Average wind speed in September
Sterley, Germany
- Average wind speed in September: 13.6km/h
The windiest month (with the highest average wind speed) is December (18.6km/h).
The calmest month (with the lowest average wind speed) is August (12.8km/h).
Average humidity in September
Sterley, Germany
- Average humidity in September: 80%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Sterley, Germany
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is June (47mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in September
Sterley, Germany
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is February (10.3 days).
Average snowfall in September
Sterley, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is December (25mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Sterley, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.4 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
Sterley, 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 36min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in September
Sterley, Germany
- Average sunshine days in September: 12.9 days
The month with the most sunshine days is April (15.6 days).
The month with the least sunshine days is December (10.1 days).
Average UV index in September
Sterley, Germany
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Sterley, Germany
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Sterley, 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).
