September weather forecastLaarne, Belgium
September
Weather in September
September, the first month of the autumn in Laarne, is still a refreshing month, with an average temperature varying between 19.6°C (67.3°F) and 11.7°C (53.1°F).Temperature
Laarne's weather subtly changes with the onset of September, barely falling from a warm 23°C (73.4°F) in August to an enjoyable 19.6°C (67.3°F). Laarne observes an average nighttime low-temperature of 11.7°C (53.1°F) during the month of September.Humidity
In September, the average relative humidity in Laarne is 78%.Rainfall
September is the month with the least rainfall. Rain falls for 10.1 days and accumulates 13mm (0.51") of precipitation.Snowfall
In Laarne, snow does not fall in April through November.Daylight
The average length of the day in September in Laarne is 12h and 38min.On the first day of September, sunrise is at 06:58 and sunset at 20:29. On the last day of the month, sunrise is at 07:44 and sunset at 19:24 CEST.
Sunshine
In Laarne, the average sunshine in September is 7.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Laarne, Belgium
- Average high temperature in September: 19.6°C
The warmest month (with the highest average high temperature) is July (23.1°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is August (14.2°C).
The coldest months (with the lowest average low temperature) are January and February (1.7°C).
Average pressure in September
Laarne, Belgium
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is September (1017.4mbar).
The month with the lowest atmospheric pressure is November (1012mbar).
Average wind speed in September
Laarne, Belgium
- Average wind speed in September: 12.2km/h
The windiest month (with the highest average wind speed) is December (17.2km/h).
The calmest month (with the lowest average wind speed) is August (12km/h).
Average humidity in September
Laarne, Belgium
- Average humidity in September: 78%
The month with the highest relative humidity is December (87%).
The months with the lowest relative humidity are April, July and August (74%).
Average rainfall in September
Laarne, Belgium
- Average rainfall in September: 13mm
The wettest month (with the highest rainfall) is June (34mm).
The driest month (with the least rainfall) is September (13mm).
Average rainfall days in September
Laarne, Belgium
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is September (10.1 days).
Average snowfall in September
Laarne, Belgium
- Average snowfall in September: 0mm
The month with the highest snowfall is January (14mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Laarne, Belgium
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Laarne, Belgium
- 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: 7h and 12min
The month with the most sunshine is June (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Laarne, Belgium
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in September
Laarne, Belgium
- 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
Laarne, Belgium
- Average cloud cover in September: 44
The months with the most cloud cover are January and December (Cloud cover 63).
The months with the least cloud cover are April and August (Cloud cover 42).
Average visibility in September
Laarne, Belgium
- 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).
