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 average high-temperature slightly decreases in September, shifting from a moderately hot 23.3°C (73.9°F) in August to a comfortable 19°C (66.2°F). An average nighttime temperature of 9.3°C (48.7°F) is noted in Merchweiler during the month of September.Humidity
The average relative humidity in September in Merchweiler, Germany, is 79%.Rainfall
In Merchweiler, during September, the rain falls for 11.8 days and regularly aggregates up to 37mm (1.46") of precipitation. Throughout the year, there are 169.4 rainfall days, and 538mm (21.18") of precipitation is accumulated.Snowfall
April, June through September are months without snowfall in Merchweiler.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, sunrise is at 07:30 and sunset at 19:12 CEST.
Sunshine
In September, the average sunshine is 8.2h.UV index
In Merchweiler, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 3 in September translates into these instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Merchweiler?
What is the average humidity in September in Merchweiler?
How much does it rain in Merchweiler in September?
When it does not snow in Merchweiler?
Does it snow in Merchweiler in September?
How many hours of daylight does Merchweiler have in September?
When are sunrise and sunset in September in Merchweiler?
How many hours of sunshine does Merchweiler have in September?
What is the UV index reading in September in Merchweiler?
Average temperature in September
Merchweiler, 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
Merchweiler, 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
Merchweiler, 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
Merchweiler, 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
Merchweiler, 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
Merchweiler, 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
Merchweiler, 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
Merchweiler, 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
Merchweiler, 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
Merchweiler, 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
Merchweiler, 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
Merchweiler, 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
Merchweiler, 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).
