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
The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a warm 23.4°C (74.1°F) in August to an enjoyable 18.9°C (66°F). An average temperature of 9.3°C (48.7°F) marks the nights in Merzweiler in September.Humidity
In Merzweiler, the average relative humidity in September is 79%.Rainfall
In Merzweiler, in September, it is raining for 13.1 days, with typically 34mm (1.34") of accumulated precipitation. In Merzweiler, Germany, during the entire year, the rain falls for 153.9 days and collects up to 437mm (17.2") of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 36min.On the first day of September in Merzweiler, sunrise is at 06:46 and sunset at 20:13. On the last day of the month, sunrise is at 07:29 and sunset at 19:10 CEST.
Sunshine
The average sunshine in September is 8.1h.UV index
In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 3 during September leads to these instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Merzweiler?
What is the average humidity in September in Merzweiler?
How many days does it rain in September in Merzweiler?
When it does not snow in Merzweiler?
Does it snow in Merzweiler in September?
What is the average length of the day in September in Merzweiler?
When is the sunrise / sunset in September in Merzweiler?
How long on average sun shines in September in Merzweiler?
How high is the UV index in September in Merzweiler?
Average temperature in September
Merzweiler, Germany
- Average high temperature in September: 18.9°C
The warmest month (with the highest average high temperature) is July (23.5°C).
The month with the lowest average high temperature is January (2.9°C).
- Average low temperature in September: 9.3°C
The month with the highest average low temperature is August (12.7°C).
The coldest months (with the lowest average low temperature) are January and February (-1.3°C).
Average pressure in September
Merzweiler, Germany
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is December (1018.3mbar).
The month with the lowest atmospheric pressure is November (1014.4mbar).
Average wind speed in September
Merzweiler, Germany
- Average wind speed in September: 9km/h
The windiest month (with the highest average wind speed) is February (12.1km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).
Average humidity in September
Merzweiler, 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 (74%).
Average rainfall in September
Merzweiler, Germany
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is July (58mm).
The driest month (with the least rainfall) is January (20mm).
Average rainfall days in September
Merzweiler, Germany
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in September
Merzweiler, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is February (53mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Merzweiler, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Merzweiler, 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 12min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in September
Merzweiler, Germany
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is March (18.1 days).
The month with the least sunshine days is July (8.4 days).
Average UV index in September
Merzweiler, Germany
- Average UV index in September: 3
The months with the highest UV index are June, July and August (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
Merzweiler, Germany
- Average cloud cover in September: 42
The month with the most cloud cover is December (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Merzweiler, Germany
- Average visibility in September: 8km
The months with the highest visibility are April, June, July and August (9km).
The months with the lowest visibility are January, February, October, November and December (7km).
