September weather forecastGerolfingen, Germany

September

Weather in September

The first month of the autumn, September, is still a refreshing month in Gerolfingen, Germany, with temperature in the range of an average high of 18.5°C (65.3°F) and an average low of 9.5°C (49.1°F).

Temperature

Transition from August to September is accompanied by a temperature drop, with average high-temperatures decreasing from a moderately hot 23.7°C (74.7°F) to an enjoyable 18.5°C (65.3°F). An average temperature of 9.5°C (49.1°F) marks the nights in Gerolfingen in September.

Humidity

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

Rainfall

In September, in Gerolfingen, the rain falls for 13.5 days. Throughout September, 38mm (1.5") of precipitation is accumulated. In Gerolfingen, during the entire year, the rain falls for 163.1 days and collects up to 526mm (20.71") of precipitation.

Snowfall

June through September are months without snowfall in Gerolfingen.

Daylight

The average length of the day in September is 12h and 35min.
On the first day of September in Gerolfingen, sunrise is at 06:35 and sunset at 20:00. On the last day of the month, sunrise is at 07:16 and sunset at 18:58 CEST.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 4 during September translates into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.

Frequently asked questions

The high-temperature, in September, in Gerolfingen, records 18.5°C (65.3°F), while the low-temperature is 9.5°C (49.1°F).

In September, the average relative humidity is 79%.

In Gerolfingen, in September, during 13.5 rainfall days, 38mm (1.5") of precipitation is typically accumulated.

June through September are months without snowfall in Gerolfingen.

In Gerolfingen, Germany, in September, it doesn't snow. In October, it regularly snows.

In Gerolfingen, Germany, the average day length in September is 12h and 35min.

On the first day of September in Gerolfingen, Germany, sunrise is at 06:35 and sunset at 20:00. On the last day of the month, sunrise is at 07:16 and sunset at 18:58 CEST.

The average sunshine duration in September in Gerolfingen, Germany, is 8.6h.

The average daily maximum UV index in September in Gerolfingen, Germany, is 4. 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
Gerolfingen, Germany

  • Average high temperature in September: 18.5°C

The warmest month (with the highest average high temperature) is August (23.7°C).
The month with the lowest average high temperature is January (2°C).

  • Average low temperature in September: 9.5°C

The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (-2.4°C).

Average pressure in September
Gerolfingen, Germany

  • Average pressure in September: 1018.4mbar

The month with the highest atmospheric pressure is December (1019.4mbar).
The month with the lowest atmospheric pressure is November (1015.3mbar).

Average wind speed in September
Gerolfingen, Germany

  • Average wind speed in September: 9.5km/h

The windiest month (with the highest average wind speed) is December (14.5km/h).
The calmest month (with the lowest average wind speed) is August (9.3km/h).

Average humidity in September
Gerolfingen, Germany

  • Average humidity in September: 79%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is July (74%).

Average rainfall in September
Gerolfingen, Germany

  • Average rainfall in September: 38mm

The wettest month (with the highest rainfall) is August (74mm).
The driest month (with the least rainfall) is March (27mm).

Average rainfall days in September
Gerolfingen, Germany

  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is February (6.8 days).

Average snowfall in September
Gerolfingen, Germany

  • Average snowfall in September: 0mm

The month with the highest snowfall is December (74mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Gerolfingen, Germany

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Gerolfingen, Germany

  • Average daylight in September: 12h and 36min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in September: 8h and 36min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in September
Gerolfingen, Germany

  • Average sunshine days in September: 13.6 days

The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is June (7.6 days).

Average UV index in September
Gerolfingen, Germany

  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in September
Gerolfingen, Germany

  • Average cloud cover in September: 38

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in September
Gerolfingen, Germany

  • Average visibility in September: 9km

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