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
Weather in September
Temperature
Transition into September subtly marks a drop in the average high-temperature, moderately moving from a pleasant 22.6°C (72.7°F) in August to a comfortable 18.5°C (65.3°F). An average temperature of 9°C (48.2°F) is recorded in Walferdange during the nights in September.Humidity
In September, the average relative humidity is 80%.Rainfall
In Walferdange, during September, the rain falls for 11.3 days and regularly aggregates up to 35mm (1.38") of precipitation. In Walferdange, Luxembourg, during the entire year, the rain falls for 171.5 days and collects up to 545mm (21.46") of precipitation.Snowfall
In Walferdange, snow does not fall in June through September.Daylight
The average length of the day in September in Walferdange is 12h and 36min.On the first day of September in Walferdange, 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 September, the average sunshine is 8.1h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 3 in September translates into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
What are September temperatures in Walferdange?
What is the average humidity in September in Walferdange?
How much does it rain in Walferdange in September?
When it does not snow in Walferdange?
Does it snow in Walferdange in September?
What is the average length of the day in September in Walferdange?
What time are sunrise and sunset in September in Walferdange?
How many hours of sunshine does Walferdange have in September?
What is the UV index reading in September in Walferdange?
Average temperature in September
Walferdange, 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
Walferdange, 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
Walferdange, 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
Walferdange, 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
Walferdange, 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
Walferdange, 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
Walferdange, 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
Walferdange, 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
Walferdange, Luxembourg
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 12min).
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
Walferdange, 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
Walferdange, 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
Walferdange, 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
Walferdange, 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).
Walferdange, Luxembourg
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