September weather forecastStegen, Luxembourg

September

Weather in September

The first month of the autumn, September, is also an enjoyable month in Stegen, Luxembourg, with temperature in the range of an average high of 17.8°C (64°F) and an average low of 8.6°C (47.5°F).

Temperature

With the arrival of September, Stegen experiences a modest decline in average high-temperatures, transitioning from a pleasant 21.7°C (71.1°F) in August to a comfortable 17.8°C (64°F). An average temperature of 8.6°C (47.5°F) marks the nights in September.

Humidity

The average relative humidity in September in Stegen, Luxembourg, is 82%.

Rainfall

In Stegen, during September, the rain falls for 13.5 days and regularly aggregates up to 44mm (1.73") of precipitation. In Stegen, during the entire year, the rain falls for 190.7 days and collects up to 631mm (24.84") of precipitation.

Snowfall

June through September are months without snowfall in Stegen.

Daylight

In September, the average length of the day in Stegen is 12h and 37min.
On the first day of September, sunrise is at 06:51 and sunset at 20:18. On the last day of the month, sunrise is at 07:34 and sunset at 19:15 CEST.

Sunshine

In Stegen, the average sunshine in September is 7.8h.

UV index

The average daily maximum UV index in September in Stegen is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 3 during September translates into the following directions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Frequently asked questions

In September, the average high-temperature and low-temperature are 17.8°C (64°F) and 8.6°C (47.5°F) respectively.

In September, the average relative humidity is 82%.

In September, the rain falls for 13.5 days. Throughout September, 44mm (1.73") of precipitation is accumulated.

June through September are months without snowfall.

In Stegen, in September, it doesn't snow. In October, it regularly snows.

In September, the average day length is 12h and 37min.

On the first day of September in Stegen, sunrise is at 06:51 and sunset at 20:18. On the last day of the month, sunrise is at 07:34 and sunset at 19:15 CEST.

The average sunshine duration in September in Stegen, Luxembourg, is 7.8h.

In Stegen, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Stegen, 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
Stegen, 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
Stegen, 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
Stegen, 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
Stegen, 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
Stegen, 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
Stegen, 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
Stegen, 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
Stegen, Luxembourg

  • 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 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
Stegen, 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
Stegen, 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
Stegen, 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
Stegen, 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).