September weather forecastLillo, Belgium
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Lillo, Belgium, with an average temperature ranging between max 19.5°C (67.1°F) and min 11.3°C (52.3°F).Temperature
A minor decrease in the average high-temperature is observed during September, shifting from a warm 23.1°C (73.6°F) in August to a comfortable 19.5°C (67.1°F). The mean low-temperature during September nights is a fresh 11.3°C (52.3°F).Humidity
In September, the average relative humidity is 79%.Rainfall
In September, the rain falls for 12.5 days. Throughout September, 24mm (0.94") of precipitation is accumulated. In Lillo, during the entire year, the rain falls for 179.1 days and collects up to 451mm (17.76") of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 38min.On the first day of September, sunrise is at 06:56 and sunset at 20:28. On the last day of the month, sunrise is at 07:42 and sunset at 19:22 CEST.
Sunshine
The average sunshine in September is 7.6h.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 unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Exercise prevention - Warding off sunburn is urged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lillo, Belgium
- Average high temperature in September: 19.5°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 (5.2°C).
- Average low temperature in September: 11.3°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 (1.4°C).
Average pressure in September
Lillo, 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 (1012.3mbar).
Average wind speed in September
Lillo, Belgium
- Average wind speed in September: 11.8km/h
The windiest month (with the highest average wind speed) is December (17.5km/h).
The calmest month (with the lowest average wind speed) is August (11.6km/h).
Average humidity in September
Lillo, Belgium
- Average humidity in September: 79%
The month with the highest relative humidity is December (87%).
The months with the lowest relative humidity are April and August (74%).
Average rainfall in September
Lillo, Belgium
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is June (51mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in September
Lillo, Belgium
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (17.6 days).
The months with the least rainy days are February and September (12.5 days).
Average snowfall in September
Lillo, Belgium
- Average snowfall in September: 0mm
The month with the highest snowfall is February (26mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Lillo, Belgium
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.4 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
Lillo, 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 36min
The month with the most sunshine is July (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in September
Lillo, Belgium
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in September
Lillo, 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
Lillo, Belgium
- Average cloud cover in September: 43
The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is April (Cloud cover 41).
Average visibility in September
Lillo, 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).
