September weather forecastHollenfels, Luxembourg
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Hollenfels, Luxembourg, with temperature in the range of an average low of 8.6°C (47.5°F) and an average high of 17.8°C (64°F).Temperature
Hollenfels's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's pleasant 21.7°C (71.1°F) to an enjoyable 17.8°C (64°F). Hollenfels observes an average low-temperature of 8.6°C (47.5°F) during September nights.Humidity
In September, the average relative humidity is 82%.Rainfall
In September, in Hollenfels, the rain falls for 13.5 days. Throughout September, 44mm (1.73") of precipitation is accumulated. Throughout the year, there are 190.7 rainfall days, and 631mm (24.84") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Hollenfels.Daylight
The average length of the day in September is 12h and 36min.On the first day of September in Hollenfels, sunrise is at 06:52 and sunset at 20:19. On the last day of the month, sunrise is at 07:35 and sunset at 19:16 CEST.
Sunshine
The average sunshine in September in Hollenfels is 7.8h.UV index
In Hollenfels, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 3 in September interprets into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hollenfels, Luxembourg
- Average high temperature in September: 17.8°C
The warmest month (with the highest average high temperature) is August (21.7°C).
The month with the lowest average high temperature is January (2.7°C).
- Average low temperature in September: 8.6°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 (-1.3°C).
Average pressure in September
Hollenfels, Luxembourg
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is December (1018mbar).
The month with the lowest atmospheric pressure is November (1013.9mbar).
Average wind speed in September
Hollenfels, Luxembourg
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is February (15.9km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).
Average humidity in September
Hollenfels, Luxembourg
- Average humidity in September: 82%
The month with the highest relative humidity is December (92%).
The months with the lowest relative humidity are April and August (79%).
Average rainfall in September
Hollenfels, Luxembourg
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is December (70mm).
The driest month (with the least rainfall) is April (36mm).
Average rainfall days in September
Hollenfels, Luxembourg
- Average rainfall days in September: 13.5 days
The months with the highest number of rainy days are June and July (19.1 days).
The month with the least rainy days is February (12.7 days).
Average snowfall in September
Hollenfels, Luxembourg
- Average snowfall in September: 0mm
The month with the highest snowfall is January (78mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Hollenfels, Luxembourg
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hollenfels, Luxembourg
- Average daylight in September: 12h and 36min
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: 7h and 48min
The month with the most sunshine is July (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).
Average sunshine days in September
Hollenfels, Luxembourg
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is June (8.1 days).
Average UV index in September
Hollenfels, 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, March, November and December (UV index 2).
Average cloud cover in September
Hollenfels, Luxembourg
- Average cloud cover in September: 43
The month with the most cloud cover is December (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in September
Hollenfels, Luxembourg
- Average visibility in September: 8km
The months with the highest visibility are March, April and August (9km).
The months with the lowest visibility are November and December (7km).
