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 onset of September entails a subtle temperature shift, as the average high-temperature eases from a moderately hot 23.2°C (73.8°F) in August to an enjoyable 19.4°C (66.9°F). Heinsberg observes an average low-temperature of 11.1°C (52°F) during September.Humidity
The average relative humidity in September is 78%.Rainfall
In Heinsberg, during September, the rain falls for 10.8 days and regularly aggregates up to 23mm (0.91") of precipitation. Throughout the year, there are 164.3 rainfall days, and 397mm (15.63") of precipitation is accumulated.Snowfall
In Heinsberg, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 38min.On the first day of September in Heinsberg, sunrise is at 06:49 and sunset at 20:20. On the last day of the month, sunrise is at 07:35 and sunset at 19:15 CEST.
Sunshine
In Heinsberg, the average sunshine in September is 8.1h.UV index
The average daily maximum UV index in September in Heinsberg 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: A maximum daily UV index of 4 during September morphs into the following directions:
Make use of precautions - It is urged to ward off sun damage. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Heinsberg in September?
What is the average humidity in September in Heinsberg?
How many days does it rain in September in Heinsberg?
When it does not snow in Heinsberg?
How many hours of daylight does Heinsberg have in September?
When are sunrise and sunset in September in Heinsberg?
How long on average sun shines in September in Heinsberg?
What is the UV index reading in September in Heinsberg?
Average temperature in September
Heinsberg, Germany
- Average high temperature in September: 19.4°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 (4.8°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is August (14.3°C).
The coldest months (with the lowest average low temperature) are January and February (1°C).
Average pressure in September
Heinsberg, Germany
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1012.9mbar).
Average wind speed in September
Heinsberg, Germany
- Average wind speed in September: 11.4km/h
The windiest month (with the highest average wind speed) is December (17.3km/h).
The calmest month (with the lowest average wind speed) is August (11.1km/h).
Average humidity in September
Heinsberg, Germany
- Average humidity in September: 78%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Heinsberg, Germany
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is June (42mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in September
Heinsberg, Germany
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is September (10.8 days).
Average snowfall in September
Heinsberg, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (31mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Heinsberg, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.7 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
Heinsberg, Germany
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 8h and 1min
The months with the most sunshine are July and August (Average sunshine: 9h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).
Average sunshine days in September
Heinsberg, Germany
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in September
Heinsberg, 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, February, November and December (UV index 2).
Average cloud cover in September
Heinsberg, Germany
- Average cloud cover in September: 40
The month with the most cloud cover is December (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Heinsberg, Germany
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
