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
In September, the average high-temperature marginally drops from a warm 23.3°C (73.9°F) in August to a comfortable 19°C (66.2°F). September sees the temperature falling to a mean low of 9.3°C (48.7°F).Humidity
In September, the average relative humidity is 79%.Rainfall
In Hirzweiler, in September, it is raining for 11.8 days, with typically 37mm (1.46") of accumulated precipitation. In Hirzweiler, during the entire year, the rain falls for 169.4 days and collects up to 538mm (21.18") of precipitation.Snowfall
In Hirzweiler, snow does not fall in April, June through September.Daylight
In September, the average length of the day is 12h and 36min.On the first day of the month, sunrise is at 06:48 and sunset at 20:14. On the last day of September, in Hirzweiler, sunrise is at 07:30 and sunset at 19:12 CEST.
Sunshine
In Hirzweiler, the average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September in Hirzweiler is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Be vigilant - Preventing sunburn is recommended. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September in Hirzweiler?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Hirzweiler, Germany
- Average high temperature in September: 19°C
The warmest month (with the highest average high temperature) is July (23.6°C).
The month with the lowest average high temperature is January (3.3°C).
- Average low temperature in September: 9.3°C
The month with the highest average low temperature is July (12.7°C).
The coldest month (with the lowest average low temperature) is January (-1.3°C).
Average pressure in September
Hirzweiler, Germany
- Average pressure in September: 1018.1mbar
The month with the highest atmospheric pressure is December (1018.8mbar).
The month with the lowest atmospheric pressure is November (1014.6mbar).
Average wind speed in September
Hirzweiler, Germany
- Average wind speed in September: 9.4km/h
The windiest month (with the highest average wind speed) is February (13.6km/h).
The calmest month (with the lowest average wind speed) is August (9.1km/h).
Average humidity in September
Hirzweiler, Germany
- Average humidity in September: 79%
The month with the highest relative humidity is December (91%).
The months with the lowest relative humidity are April, July and August (75%).
Average rainfall in September
Hirzweiler, Germany
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is December (64mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in September
Hirzweiler, Germany
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (11.5 days).
Average snowfall in September
Hirzweiler, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is December (70mm).
The months with the least snowfall are April, June, July, August and September (0mm).
Average snowfall days in September
Hirzweiler, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hirzweiler, Germany
- 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 18min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in September
Hirzweiler, Germany
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is September (16.1 days).
The month with the least sunshine days is December (10.2 days).
Average UV index in September
Hirzweiler, Germany
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Hirzweiler, Germany
- 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 35).
Average visibility in September
Hirzweiler, Germany
- Average visibility in September: 8km
The months with the highest visibility are March, April, June, July and August (9km).
The months with the lowest visibility are January, November and December (7km).
