September weather forecastJülich, Germany
September
Weather in September
September, the first month of the autumn in Jülich, is still a refreshing month, with temperature in the range of an average low of 10.5°C (50.9°F) and an average high of 18.8°C (65.8°F).Temperature
September is marked by a subtle drop in average high-temperatures, transitioning from an agreeable 22.7°C (72.9°F) in August to a comfortable 18.8°C (65.8°F). Jülich's nights in September experience an average temperature drop to a cool 10.5°C (50.9°F).Humidity
The average relative humidity in September in Jülich, Germany, is 79%.Rainfall
In Jülich, Germany, in September, during 13.4 rainfall days, 32mm (1.26") of precipitation is typically accumulated. Throughout the year, in Jülich, Germany, there are 185.5 rainfall days, and 509mm (20.04") of precipitation is accumulated.Snowfall
In Jülich, snow does not fall in April through October.Daylight
The average length of the day in September in Jülich is 12h and 38min.On the first day of the month, sunrise is at 06:49 and sunset at 20:19. On the last day of September, sunrise is at 07:34 and sunset at 19:14 CEST.
Sunshine
In September, the average sunshine is 8.1h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Jülich, Germany
- Average high temperature in September: 18.8°C
The warmest month (with the highest average high temperature) is August (22.7°C).
The month with the lowest average high temperature is January (4.3°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (0.3°C).
Average pressure in September
Jülich, 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 (1013.1mbar).
Average wind speed in September
Jülich, Germany
- Average wind speed in September: 11.2km/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 (11km/h).
Average humidity in September
Jülich, Germany
- Average humidity in September: 79%
The months with the highest relative humidity are January and December (87%).
The months with the lowest relative humidity are April and August (75%).
Average rainfall in September
Jülich, Germany
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is June (55mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in September
Jülich, Germany
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is February (12.1 days).
Average snowfall in September
Jülich, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is February (53mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Jülich, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.1 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
Jülich, Germany
- Average daylight in September: 12h and 36min
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 6min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).
Average sunshine days in September
Jülich, Germany
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is October (14.5 days).
The month with the least sunshine days is June (9 days).
Average UV index in September
Jülich, 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
Jülich, Germany
- Average cloud cover in September: 40
The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Jülich, Germany
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January and December (8km).








