Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
A mild drop in Nommern's average high-temperature is observed in September, transitioning from a pleasant 22.6°C (72.7°F) in August to a comfortable 18.5°C (65.3°F). In the month of September, Nommern experiences an average low-temperature of 9°C (48.2°F).Humidity
The average relative humidity in September in Nommern is 80%.Rainfall
In Nommern, in September, it is raining for 11.3 days, with typically 35mm (1.38") of accumulated precipitation. Throughout the year, in Nommern, there are 171.5 rainfall days, and 545mm (21.46") of precipitation is accumulated.Snowfall
In Nommern, snow does not fall in June through September.Daylight
In Nommern, the average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 06:51 and sunset at 20:18. On the last day of September, sunrise is at 07:34 and sunset at 19:15 CEST.
Sunshine
In Nommern, the average sunshine in September is 8.1h.UV index
In Nommern, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The UV index of 3 during September leads to these advisories:
Guard yourself - Precautionary measures against sun damage are advocated. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Nommern have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Nommern have in September?
What is the UV index reading in September?
Average temperature in September
Nommern, Luxembourg
- Average high temperature in September: 18.5°C
The warmest months (with the highest average high temperature) are July and August (22.6°C).
The month with the lowest average high temperature is January (3.2°C).
- Average low temperature in September: 9°C
The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (-1.2°C).
Average pressure in September
Nommern, Luxembourg
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is November (1014.1mbar).
Average wind speed in September
Nommern, Luxembourg
- Average wind speed in September: 10.1km/h
The windiest month (with the highest average wind speed) is February (15.2km/h).
The calmest month (with the lowest average wind speed) is August (9.6km/h).
Average humidity in September
Nommern, Luxembourg
- Average humidity in September: 80%
The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is August (76%).
Average rainfall in September
Nommern, Luxembourg
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is December (61mm).
The driest month (with the least rainfall) is April (33mm).
Average rainfall days in September
Nommern, Luxembourg
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (10.8 days).
Average snowfall in September
Nommern, Luxembourg
- Average snowfall in September: 0mm
The month with the highest snowfall is December (71mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Nommern, Luxembourg
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Nommern, 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: 8h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in September
Nommern, Luxembourg
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is September (15.8 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in September
Nommern, 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, November and December (UV index 2).
Average cloud cover in September
Nommern, Luxembourg
- Average cloud cover in September: 40
The month with the most cloud cover is December (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Nommern, Luxembourg
- Average visibility in September: 8km
The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are January, February, May, June, September, October, November and December (8km).
