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
September brings a slight decrease in the average high-temperature, shifting from an agreeable 22.6°C (72.7°F) in August to a refreshing 18.9°C (66°F). An average low-temperature of 10.6°C (51.1°F) is recorded during the nights in September in Landgraaf, Netherlands.Humidity
In Landgraaf, the average relative humidity in September is 79%.Rainfall
In Landgraaf, in September, it is raining for 12.6 days, with typically 32mm (1.26") of accumulated precipitation. In Landgraaf, during the entire year, the rain falls for 182.9 days and collects up to 486mm (19.13") of precipitation.Snowfall
In Landgraaf, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 38min.On the first day of September, sunrise is at 06:50 and sunset at 20:21. On the last day of the month, sunrise is at 07:35 and sunset at 19:15 CEST.
Sunshine
In Landgraaf, the average sunshine in September is 7.8h.UV index
The average daily maximum UV index in September in Landgraaf is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: In September, the UV index of 4 transforms into the following advice:
Be vigilant - Preventing sunburn is recommended. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Landgraaf in September?
What is the average humidity in September in Landgraaf?
How many days does it rain in September in Landgraaf?
When it does not snow in Landgraaf?
What is the average length of the day in September in Landgraaf?
When is the sunrise / sunset in September in Landgraaf?
How long on average sun shines in September in Landgraaf?
What is the UV index intensity in September in Landgraaf?
Average temperature in September
Landgraaf, Netherlands
- Average high temperature in September: 18.9°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 (4.3°C).
- Average low temperature in September: 10.6°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (0.4°C).
Average pressure in September
Landgraaf, Netherlands
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1013.1mbar).
Average wind speed in September
Landgraaf, Netherlands
- Average wind speed in September: 11.4km/h
The windiest month (with the highest average wind speed) is December (17.6km/h).
The calmest month (with the lowest average wind speed) is August (11.1km/h).
Average humidity in September
Landgraaf, Netherlands
- Average humidity in September: 79%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Landgraaf, Netherlands
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is December (51mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in September
Landgraaf, Netherlands
- Average rainfall days in September: 12.6 days
The months with the highest number of rainy days are May and July (18 days).
The months with the least rainy days are February, September and October (12.6 days).
Average snowfall in September
Landgraaf, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is January (48mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Landgraaf, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Landgraaf, Netherlands
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Landgraaf, Netherlands
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is October (15.5 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in September
Landgraaf, Netherlands
- Average UV index in September: 4
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
Landgraaf, Netherlands
- Average cloud cover in September: 42
The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in September
Landgraaf, Netherlands
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January and December (8km).
