September weather forecastKoetschette, Luxembourg

September

Weather in September

September, the first month of the autumn in Koetschette, is also an enjoyable month, with an average temperature varying between 17.8°C (64°F) and 8.6°C (47.5°F).

Temperature

In September, the average high-temperature marginally drops from an agreeable 21.7°C (71.1°F) in August to an enjoyable 17.8°C (64°F). Nighttime temperature in Koetschette experiences an average drop to a chilly 8.6°C (47.5°F) in September.

Humidity

In September, the average relative humidity is 82%.

Rainfall

In September, in Koetschette, the rain falls for 13.5 days. Throughout September, 44mm (1.73") of precipitation is accumulated. Throughout the year, in Koetschette, there are 190.7 rainfall days, and 631mm (24.84") of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September is 12h and 37min.
On the first day of September, sunrise is at 06:52 and sunset at 20:20. On the last day of the month, sunrise is at 07:35 and sunset at 19:17 CEST.

Sunshine

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

UV index

The average daily maximum UV index in September in Koetschette is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.

Frequently asked questions

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

The average relative humidity in September in Koetschette is 82%.

In Koetschette, in September, during 13.5 rainfall days, 44mm (1.73") of precipitation is typically accumulated.

June through September are months without snowfall in Koetschette.

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

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

In September, on the first day of the month, sunrise is at 06:52 and sunset at 20:20. On the last day of the month, in Koetschette, Luxembourg, sunrise is at 07:35 and sunset at 19:17 CEST.

The average sunshine duration in September is 7.8h.

The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
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
Koetschette, 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
Koetschette, 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
Koetschette, 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
Koetschette, 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
Koetschette, 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
Koetschette, 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
Koetschette, 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
Koetschette, 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
Koetschette, 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
Koetschette, 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
Koetschette, 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
Koetschette, 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
Koetschette, 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).