September weather forecast
Heinerscheid, Luxembourg

September

Weather in September

September, the first month of the autumn in Heinerscheid, is still a comfortable month, with temperature in the range of an average low of 8.3°C (46.9°F) and an average high of 17.3°C (63.1°F).

Temperature

September brings a slight decrease in the average high-temperature, shifting from an agreeable 20.9°C (69.6°F) in August to an enjoyable 17.3°C (63.1°F). Heinerscheid observes an average nighttime temperature of 8.3°C (46.9°F) during September.

Humidity

In Heinerscheid, the average relative humidity in September is 83%.

Rainfall

In Heinerscheid, Luxembourg, in September, it is raining for 13.1 days, with typically 39mm (1.54") of accumulated precipitation. Throughout the year, there are 167 rainfall days, and 571mm (22.48") of precipitation is accumulated.

Snowfall

In Heinerscheid, snow does not fall in June through September.

Daylight

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

Sunshine

The average sunshine in September is 7.3h.

UV index

The average daily maximum UV index in September in Heinerscheid is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 3 in September translates into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Frequently asked questions

What is the average September temperature in Heinerscheid?
In Heinerscheid, 17.3°C (63.1°F) is the average high-temperature and 8.3°C (46.9°F) is the average low-temperature during September.
What is the average humidity in September in Heinerscheid?
In Heinerscheid, Luxembourg, the average relative humidity in September is 83%.
How many days does it rain in September in Heinerscheid?
In Heinerscheid, Luxembourg, in September, during 13.1 rainfall days, 39mm (1.54") of precipitation is typically accumulated.
When it does not snow in Heinerscheid?
June through September are months without snowfall in Heinerscheid.
Does it snow in Heinerscheid in September?
In Heinerscheid, in September, it doesn't snow. In October, it regularly snows.
How many hours of daylight does Heinerscheid have in September?
The average day length in September in Heinerscheid, Luxembourg, is 12h and 37min.
When is the sunrise / sunset in September in Heinerscheid?
On the first day of September in Heinerscheid, Luxembourg, sunrise is at 06:51 and sunset at 20:19. On the last day of the month, sunrise is at 07:34 and sunset at 19:15 CEST.
How many hours of sunshine does Heinerscheid have in September?
The average sunshine duration in September in Heinerscheid is 7.3h.
How high is the UV index in September in Heinerscheid?
In Heinerscheid, Luxembourg, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Heinerscheid, Luxembourg
  • Average high temperature in September: 17.3°C

The warmest month (with the highest average high temperature) is August (20.9°C).
The month with the lowest average high temperature is January (2.4°C).

  • Average low temperature in September: 8.3°C

The month with the highest average low temperature is July (11.2°C).
The coldest month (with the lowest average low temperature) is January (-1.9°C).

Average pressure in September
Heinerscheid, Luxembourg
  • Average pressure in September: 1017.7mbar

The months with the highest atmospheric pressure are September and December (1017.7mbar).
The month with the lowest atmospheric pressure is November (1013.7mbar).

Average wind speed in September
Heinerscheid, Luxembourg
  • Average wind speed in September: 10.4km/h

The windiest month (with the highest average wind speed) is February (16.2km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).

Average humidity in September
Heinerscheid, Luxembourg
  • Average humidity in September: 83%

The months with the highest relative humidity are January, November and December (92%).
The month with the lowest relative humidity is April (79%).

Average rainfall in September
Heinerscheid, Luxembourg
  • Average rainfall in September: 39mm

The wettest month (with the highest rainfall) is December (66mm).
The driest month (with the least rainfall) is April (31mm).

Average rainfall days in September
Heinerscheid, Luxembourg
  • Average rainfall days in September: 13.1 days

The months with the highest number of rainy days are June and July (17.3 days).
The month with the least rainy days is February (9.2 days).

Average snowfall in September
Heinerscheid, Luxembourg
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (105mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Heinerscheid, Luxembourg
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Heinerscheid, Luxembourg
  • Average daylight in September: 12h and 4min

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 2min

The months with the most sunshine are July and August (Average sunshine: 8h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 42min).

Average sunshine days in September
Heinerscheid, Luxembourg
  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is October (15.9 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in September
Heinerscheid, Luxembourg
  • Average UV index in September: 3

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in September
Heinerscheid, Luxembourg
  • Average cloud cover in September: 47

The month with the most cloud cover is December (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 43).

Average visibility in September
Heinerscheid, Luxembourg
  • Average visibility in September: 8km

The month with the highest visibility is April (9km).
The months with the lowest visibility are November and December (7km).

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