September weather forecastLienne, Belgium
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Lienne, Belgium, with temperature in the range of an average low of 8.9°C (48°F) and an average high of 17.8°C (64°F).Temperature
A mild drop in Lienne's average high-temperature is observed in September, transitioning from an agreeable 21.7°C (71.1°F) in August to an enjoyable 17.8°C (64°F). An average low-temperature of 8.9°C (48°F) is recorded during the nights in September in Lienne.Humidity
In September, the average relative humidity in Lienne is 82%.Rainfall
In Lienne, during September, the rain falls for 13.1 days and regularly aggregates up to 32mm (1.26") of precipitation. Throughout the year, in Lienne, Belgium, there are 184.4 rainfall days, and 539mm (21.22") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Lienne, the average length of the day in September is 12h and 37min.On the first day of September, sunrise is at 06:55 and sunset at 20:23. On the last day of the month, sunrise is at 07:39 and sunset at 19:19 CEST.
Sunshine
The average sunshine in September in Lienne, Belgium, is 7.7h.UV index
In September, the average daily maximum UV index in Lienne is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lienne, Belgium
- Average high temperature in September: 17.8°C
The warmest months (with the highest average high temperature) are July and August (21.7°C).
The month with the lowest average high temperature is January (3.6°C).
- Average low temperature in September: 8.9°C
The month with the highest average low temperature is August (11.8°C).
The coldest month (with the lowest average low temperature) is January (-0.8°C).
Average pressure in September
Lienne, Belgium
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is September (1017.7mbar).
The month with the lowest atmospheric pressure is November (1013.2mbar).
Average wind speed in September
Lienne, Belgium
- Average wind speed in September: 10.7km/h
The windiest month (with the highest average wind speed) is December (16.8km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).
Average humidity in September
Lienne, Belgium
- Average humidity in September: 82%
The month with the highest relative humidity is December (91%).
The months with the lowest relative humidity are April and August (79%).
Average rainfall in September
Lienne, Belgium
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is December (66mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in September
Lienne, Belgium
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (11.8 days).
Average snowfall in September
Lienne, Belgium
- Average snowfall in September: 0mm
The month with the highest snowfall is January (72mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Lienne, Belgium
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lienne, Belgium
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in September: 7h and 42min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Lienne, Belgium
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is March (13.7 days).
The month with the least sunshine days is December (9.2 days).
Average UV index in September
Lienne, Belgium
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Lienne, Belgium
- Average cloud cover in September: 44
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in September
Lienne, Belgium
- Average visibility in September: 8km
The months with the highest visibility are March and April (9km).
The months with the lowest visibility are January, February, May, June, July, August, September, October, November and December (8km).
