September weather forecastRumeln, Germany

September

Weather in September

September, the first month of the autumn in Rumeln, is still a refreshing month, with an average temperature varying between 19.4°C (66.9°F) and 11.6°C (52.9°F).

Temperature

September ushers in a minute temperature change, with average high-temperatures reducing from August's moderately hot 23.8°C (74.8°F) to a comfortable 19.4°C (66.9°F). An average low-temperature of 11.6°C (52.9°F) is noted during the nights in September.

Humidity

In September, the average relative humidity is 76%.

Rainfall

In Rumeln, in September, it is raining for 9.6 days, with typically 15mm (0.59") of accumulated precipitation. Throughout the year, there are 156.3 rainfall days, and 267mm (10.51") of precipitation is accumulated.

Snowfall

In Rumeln, 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 the month, sunrise is at 06:47 and sunset at 20:19. On the last day of September, sunrise is at 07:33 and sunset at 19:13 CEST.

Sunshine

In September, the average sunshine is 8.3h.

UV index

In Rumeln, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 4 during September, leads to the following recommendations:
Be vigilant - Preventing sunburn is recommended. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.

Frequently asked questions

An average high-temperature, in September, in Rumeln, is 19.4°C (66.9°F) and the average low-temperature is 11.6°C (52.9°F).

In September, the average relative humidity is 76%.

In Rumeln, during September, the rain falls for 9.6 days and regularly aggregates up to 15mm (0.59") of precipitation.

April through October are months without snowfall.

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

In September, on the first day of the month, sunrise is at 06:47 and sunset at 20:19. On the last day of the month, sunrise is at 07:33 and sunset at 19:13 CEST.

The average sunshine duration in September is 8.3h.

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
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
Rumeln, Germany

  • Average high temperature in September: 19.4°C

The warmest months (with the highest average high temperature) are July and August (23.8°C).
The month with the lowest average high temperature is January (4.7°C).

  • Average low temperature in September: 11.6°C

The month with the highest average low temperature is August (15°C).
The coldest month (with the lowest average low temperature) is January (0.7°C).

Average pressure in September
Rumeln, Germany

  • Average pressure in September: 1017.6mbar

The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1013mbar).

Average wind speed in September
Rumeln, Germany

  • Average wind speed in September: 10.6km/h

The windiest month (with the highest average wind speed) is December (15.5km/h).
The calmest month (with the lowest average wind speed) is August (10.5km/h).

Average humidity in September
Rumeln, Germany

  • Average humidity in September: 76%

The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (70%).

Average rainfall in September
Rumeln, Germany

  • Average rainfall in September: 15mm

The wettest month (with the highest rainfall) is December (32mm).
The driest month (with the least rainfall) is April (13mm).

Average rainfall days in September
Rumeln, Germany

  • Average rainfall days in September: 9.6 days

The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is September (9.6 days).

Average snowfall in September
Rumeln, Germany

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (16mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in September
Rumeln, Germany

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.8 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
Rumeln, Germany

  • Average daylight in September: 12h and 36min

The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 7h and 54min).

  • Average sunshine in September: 8h and 18min

The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).

Average sunshine days in September
Rumeln, 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 days).

Average UV index in September
Rumeln, Germany

  • Average UV index in September: 4

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, November and December (UV index 2).

Average cloud cover in September
Rumeln, Germany

  • Average cloud cover in September: 40

The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 37).

Average visibility in September
Rumeln, Germany

  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (9km).
The month with the lowest visibility is December (8km).