September weather forecastLiège, Belgium
September
Weather in September
Come September, autumn begins its descent on Liège. Temperatures fall to a high of around 19°C (66.2°F), marking the start of cooler days and evenings. September experiences a slight drop in rainfall, just in time to enjoy the initial stages of the fall landscape. Shortened daylight hours and lower UV indexes cement September as a bridge from summer to fall. Preparing for the onset of autumn, September maintains remnants of summer warmth while heralding the arrival of fall foliage.Temperature
September in Liège is marked by a subtle drop in average high-temperatures, transitioning from a pleasant 22°C (71.6°F) in August to an enjoyable 19°C (66.2°F). The nighttime temperature dips to a cool 11°C (51.8°F) on average during September.Rainfall
In September, the rain falls for 14 days. Throughout September, 61mm (2.4") of precipitation is accumulated. Throughout the year, there are 196 rainfall days, and 630mm (24.8") of precipitation is accumulated.Daylight
In Liège, the average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 06:52 and sunset at 20:22. On the last day of September, sunrise is at 07:37 and sunset at 19:17 CEST.
Sunshine
In September, the average sunshine is 5h.UV index
In September, the average daily maximum UV index in Liège, Belgium, is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Act with care - The need to guard against sun damage is communicated. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Liège, Belgium
- Average high temperature in September: 19°C
The warmest months (with the highest average high temperature) are July and August (22°C).
The month with the lowest average high temperature is January (3°C).
- Average low temperature in September: 11°C
The months with the highest average low temperature are July and August (13°C).
The coldest month (with the lowest average low temperature) is January (-2°C).
Average rainfall in September
Liège, Belgium
- Average rainfall in September: 61mm
The wettest month (with the highest rainfall) is July (74mm).
The driest months (with the least rainfall) are January and April (36mm).
Average rainfall days in September
Liège, Belgium
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is January (19 days).
The month with the least rainy days is September (14 days).
Average daylight in September /
Average sunshine in September
Liège, Belgium
- Average daylight in September: 12h and 36min
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: 5h
The months with the most sunshine are May, June, July and August (Average sunshine: 6h).
The months with the least sunshine are January and December (Average sunshine: 1h).
Average UV index in September
Liège, Belgium
- Average UV index in September: 4
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 1).
