September weather forecastNy, Belgium
September
Weather in September
September, the first month of the autumn in Ny, is also an enjoyable month, with an average temperature ranging between max 18°C (64.4°F) and min 9°C (48.2°F).Temperature
The commencement of September indicates a gentle shift in the average high-temperature, receding from August's pleasant 21.7°C (71.1°F) to a comfortable 18°C (64.4°F). September in Ny witnesses an average low-temperature hovering around a chilly 9°C (48.2°F).Humidity
In September, the average relative humidity in Ny is 82%.Rainfall
In September, in Ny, the rain falls for 13.5 days. Throughout September, 39mm (1.54") of precipitation is accumulated. Throughout the year, there are 184.8 rainfall days, and 546mm (21.5") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Ny.Daylight
In September, the average length of the day in Ny is 12h and 37min.On the first day of September, sunrise is at 06:53 and sunset at 20:22. On the last day of the month, sunrise is at 07:37 and sunset at 19:18 CEST.
Sunshine
The average sunshine in September in Ny, Belgium, is 7.6h.UV index
In Ny, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 3 during September translates into the following directions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ny, Belgium
- Average high temperature in September: 18°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: 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
Ny, Belgium
- 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 (1013.2mbar).
Average wind speed in September
Ny, 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
Ny, 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
Ny, Belgium
- Average rainfall in September: 39mm
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
Ny, Belgium
- Average rainfall days in September: 13.5 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
Ny, 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
Ny, 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
Ny, 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 36min
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
Ny, Belgium
- Average sunshine days in September: 13.3 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
Ny, 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
Ny, 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
Ny, 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).
