September weather forecastMerzenich, Germany

September

Weather in September

September, the first month of the autumn in Merzenich, is also an enjoyable month, with an average temperature varying between 10.3°C (50.5°F) and 18.5°C (65.3°F).

Temperature

In the transition to September, Merzenich observes a minor drop in the average high-temperature, shifting from an agreeable 22.7°C (72.9°F) in August to a refreshing 18.5°C (65.3°F). Merzenich's temperature in September lowers to a consistent average of 10.3°C (50.5°F) during the nights.

Humidity

In Merzenich, the average relative humidity in September is 79%.

Rainfall

In September, in Merzenich, the rain falls for 11.5 days. Throughout September, 23mm (0.91") of precipitation is accumulated. Throughout the year, in Merzenich, Germany, there are 166.4 rainfall days, and 370mm (14.57") of precipitation is accumulated.

Snowfall

In Merzenich, snow does not fall in April through October.

Daylight

In September, the average length of the day is 12h and 38min.
On the first day of the month, sunrise is at 06:48 and sunset at 20:18. On the last day of September, sunrise is at 07:33 and sunset at 19:13 CEST.

Sunshine

In Merzenich, Germany, the average sunshine in September is 8.2h.

UV index

The average daily maximum UV index in September in Merzenich is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily maximum UV index of 3 in September translates into the following instructions:
Exercise prevention - Protecting skin and eyes from harm is required. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.

Frequently asked questions

The high-temperature during September is 18.5°C (65.3°F) and the low-temperature is 10.3°C (50.5°F).

In Merzenich, the average relative humidity in September is 79%.

In Merzenich, Germany, in September, it is raining for 11.5 days, with typically 23mm (0.91") of accumulated precipitation.

In Merzenich, snow does not fall in April through October.

In Merzenich, Germany, the average day length in September is 12h and 38min.

In September, on the first day of the month, sunrise is at 06:48 and sunset at 20:18. On the last day of the month, in Merzenich, sunrise is at 07:33 and sunset at 19:13 CEST.

In September, the average sunshine duration is 8.2h.

In September, the average daily maximum UV index in Merzenich, Germany, is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Merzenich, Germany

  • Average high temperature in September: 18.5°C

The warmest month (with the highest average high temperature) is August (22.7°C).
The month with the lowest average high temperature is January (4°C).

  • Average low temperature in September: 10.3°C

The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is February (-0.1°C).

Average pressure in September
Merzenich, Germany

  • Average pressure in September: 1017.7mbar

The month with the highest atmospheric pressure is September (1017.7mbar).
The month with the lowest atmospheric pressure is November (1013.3mbar).

Average wind speed in September
Merzenich, Germany

  • Average wind speed in September: 10.9km/h

The windiest month (with the highest average wind speed) is December (16.6km/h).
The calmest month (with the lowest average wind speed) is August (10.6km/h).

Average humidity in September
Merzenich, Germany

  • Average humidity in September: 79%

The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (75%).

Average rainfall in September
Merzenich, Germany

  • Average rainfall in September: 23mm

The wettest month (with the highest rainfall) is June (44mm).
The driest month (with the least rainfall) is April (22mm).

Average rainfall days in September
Merzenich, Germany

  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (11.1 days).

Average snowfall in September
Merzenich, Germany

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (43mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in September
Merzenich, Germany

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (5.7 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
Merzenich, Germany

  • Average daylight in September: 12h and 36min

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: 8h and 12min

The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).

Average sunshine days in September
Merzenich, Germany

  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in September
Merzenich, Germany

  • 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
Merzenich, Germany

  • Average cloud cover in September: 40

The month with the most cloud cover is December (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 38).

Average visibility in September
Merzenich, Germany

  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).