Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September in Belval indicates a minor shift in the average high-temperature, from August's agreeable 22.8°C (73°F) to an enjoyable 18.5°C (65.3°F). September nights in Belval cool down to an average low-temperature of 9.5°C (49.1°F).Humidity
In September, the average relative humidity is 79%.Rainfall
In September, the rain falls for 12.5 days. Throughout September, 40mm (1.57") of precipitation is accumulated. Throughout the year, in Belval, Luxembourg, there are 187.2 rainfall days, and 636mm (25.04") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Belval.Daylight
The average length of the day in September in Belval is 12h and 36min.On the first day of the month, sunrise is at 06:52 and sunset at 20:19. On the last day of September, sunrise is at 07:35 and sunset at 19:16 CEST.
Sunshine
In Belval, Luxembourg, the average sunshine in September is 8h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 3 during September leads to these instructions:
Ensure safety - Recommendations to avert sunburn are presented. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Frequently asked questions
What is the usual temperature for Belval in September?
What is the average humidity in September in Belval?
How many days does it rain in September in Belval?
When it does not snow in Belval?
Does it snow in Belval in September?
How many hours of daylight does Belval have in September?
What time are sunrise and sunset in September in Belval?
How long on average sun shines in September in Belval?
How high is the UV index in September in Belval?
Average temperature in September
Belval, Luxembourg
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is January (3.4°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is August (12.6°C).
The coldest month (with the lowest average low temperature) is January (-0.9°C).
Average pressure in September
Belval, Luxembourg
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is November (1014.1mbar).
Average wind speed in September
Belval, Luxembourg
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is February (15.6km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).
Average humidity in September
Belval, Luxembourg
- Average humidity in September: 79%
The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is August (76%).
Average rainfall in September
Belval, Luxembourg
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is December (75mm).
The driest month (with the least rainfall) is April (39mm).
Average rainfall days in September
Belval, Luxembourg
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is September (12.5 days).
Average snowfall in September
Belval, Luxembourg
- Average snowfall in September: 0mm
The month with the highest snowfall is January (85mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Belval, Luxembourg
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Belval, Luxembourg
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).
Average sunshine days in September
Belval, Luxembourg
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is December (8 days).
Average UV index in September
Belval, Luxembourg
- 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, November and December (UV index 2).
Average cloud cover in September
Belval, Luxembourg
- Average cloud cover in September: 41
The month with the most cloud cover is December (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Belval, Luxembourg
- Average visibility in September: 8km
The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are November and December (7km).
Belval, Luxembourg
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