September weather forecastArnum, Germany

September

Weather in September

September, the first month of the autumn in Arnum, is still a comfortable month, with an average temperature fluctuating between 19.1°C (66.4°F) and 10.8°C (51.4°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 19.1°C (66.4°F). During September, the nighttime temperature averages to a fresh 10.8°C (51.4°F).

Humidity

In Arnum, the average relative humidity in September is 76%.

Rainfall

In Arnum, in September, during 13.8 rainfall days, 32mm (1.26") of precipitation is typically accumulated. Throughout the year, there are 187.8 rainfall days, and 489mm (19.25") of precipitation is accumulated.

Snowfall

In Arnum, snow does not fall in May through October.

Daylight

The average length of the day in September is 12h and 40min.
On the first day of the month, sunrise is at 06:33 and sunset at 20:08. On the last day of September, sunrise is at 07:21 and sunset at 19:00 CEST.

Sunshine

In Arnum, the average sunshine in September is 8.3h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: In September, the maximum UV index of 4 suggests these recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Minimize direct exposure to the Sun during midday when its radiation is at its peak. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Frequently asked questions

September temperatures vary between a high-temperature of 19.1°C (66.4°F) and a low-temperature of 10.8°C (51.4°F).

In Arnum, the average relative humidity in September is 76%.

In Arnum, in September, it is raining for 13.8 days, with typically 32mm (1.26") of accumulated precipitation.

In Arnum, snow does not fall in May through October.

In Arnum, the average day length in September is 12h and 40min.

On the first day of September, sunrise is at 06:33 and sunset at 20:08. On the last day of the month, sunrise is at 07:21 and sunset at 19:00 CEST.

In Arnum, the average sunshine duration in September is 8.3h.

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe 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
Arnum, Germany

  • Average high temperature in September: 19.1°C

The warmest month (with the highest average high temperature) is August (23.8°C).
The month with the lowest average high temperature is January (3°C).

  • Average low temperature in September: 10.8°C

The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (-0.9°C).

Average pressure in September
Arnum, Germany

  • Average pressure in September: 1017.2mbar

The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1013mbar).

Average wind speed in September
Arnum, Germany

  • Average wind speed in September: 11.6km/h

The windiest month (with the highest average wind speed) is December (16.2km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).

Average humidity in September
Arnum, Germany

  • Average humidity in September: 76%

The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is August (70%).

Average rainfall in September
Arnum, Germany

  • Average rainfall in September: 32mm

The wettest month (with the highest rainfall) is July (53mm).
The driest month (with the least rainfall) is April (22mm).

Average rainfall days in September
Arnum, Germany

  • Average rainfall days in September: 13.8 days

The months with the highest number of rainy days are May and July (18.3 days).
The month with the least rainy days is February (13.4 days).

Average snowfall in September
Arnum, Germany

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (59mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in September
Arnum, Germany

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.9 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
Arnum, Germany

  • Average daylight in September: 12h and 42min

The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).

  • Average sunshine in September: 8h and 18min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).

Average sunshine days in September
Arnum, Germany

  • Average sunshine days in September: 12.8 days

The month with the most sunshine days is October (14.1 days).
The month with the least sunshine days is December (7.5 days).

Average UV index in September
Arnum, 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
Arnum, Germany

  • Average cloud cover in September: 42

The month with the most cloud cover is December (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 37).

Average visibility in September
Arnum, Germany

  • Average visibility in September: 9km

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