September weather forecastHeiderscheid, Luxembourg
September
Weather in September
September, the first month of the autumn in Heiderscheid, is still a comfortable month, with an average temperature ranging between max 17.5°C (63.5°F) and min 8.1°C (46.6°F).Temperature
The shift from August to September includes a small decrease in the average high-temperature, from a pleasant 20.9°C (69.6°F) to a refreshing 17.5°C (63.5°F). In September, the temperature in Heiderscheid drops to an average of 8.1°C (46.6°F) at night.Humidity
The average relative humidity in September in Heiderscheid, Luxembourg, is 83%.Rainfall
In Heiderscheid, in September, it is raining for 14.5 days, with typically 44mm (1.73") of accumulated precipitation. Throughout the year, in Heiderscheid, there are 189.8 rainfall days, and 651mm (25.63") of precipitation is accumulated.Snowfall
In Heiderscheid, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 06:52 and sunset at 20:19. On the last day of September, in Heiderscheid, Luxembourg, sunrise is at 07:35 and sunset at 19:16 CEST.
Sunshine
The average sunshine in September in Heiderscheid is 7.1h.UV index
In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The UV index of 3 in September translates into these instructions:
Guard yourself - Precautionary measures against sun damage are advocated. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Heiderscheid, Luxembourg
- Average high temperature in September: 17.5°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 (2.5°C).
- Average low temperature in September: 8.1°C
The months with the highest average low temperature are July and August (11.1°C).
The coldest months (with the lowest average low temperature) are January and February (-1.8°C).
Average pressure in September
Heiderscheid, Luxembourg
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is December (1017.8mbar).
The month with the lowest atmospheric pressure is November (1013.8mbar).
Average wind speed in September
Heiderscheid, Luxembourg
- Average wind speed in September: 10.5km/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 (10km/h).
Average humidity in September
Heiderscheid, Luxembourg
- Average humidity in September: 83%
The month with the highest relative humidity is December (93%).
The month with the lowest relative humidity is April (79%).
Average rainfall in September
Heiderscheid, Luxembourg
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is December (76mm).
The driest month (with the least rainfall) is April (37mm).
Average rainfall days in September
Heiderscheid, Luxembourg
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is February (11.1 days).
Average snowfall in September
Heiderscheid, Luxembourg
- Average snowfall in September: 0mm
The month with the highest snowfall is February (90mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Heiderscheid, Luxembourg
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Heiderscheid, 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 6min
The month with the most sunshine is July (Average sunshine: 8h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 36min).
Average sunshine days in September
Heiderscheid, Luxembourg
- Average sunshine days in September: 12.8 days
The month with the most sunshine days is September (12.8 days).
The month with the least sunshine days is June (7.2 days).
Average UV index in September
Heiderscheid, 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
Heiderscheid, Luxembourg
- Average cloud cover in September: 48
The month with the most cloud cover is December (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 44).
Average visibility in September
Heiderscheid, Luxembourg
- Average visibility in September: 8km
The month with the highest visibility is April (9km).
The months with the lowest visibility are January, October, November and December (7km).
