Frankfurt, Germany - September weather forecast and climate information | Weather Atlas
Frankfurt
Germany
Long-term weather forecast
Long-term weather forecast
Spring in the old town of Frankfurt, Germany, with the view of Justitia statue
Spring in the old town of Frankfurt, Germany, with the view of Justitia statue
The first month of the autumn, September, is also an agreeable month in Frankfurt, Germany, with average temperature ranging between max 20.3°C (68.5°F) and min 10.5°C (50.9°F).

Temperature

In Frankfurt, the average high-temperature slightly decreases, from a moderately hot 25.1°C (77.2°F) in August, to an agreeable 20.3°C (68.5°F). In Frankfurt, Germany, the average low-temperature is 10.5°C (50.9°F).

Rainfall

In Frankfurt, during September, the rain falls for 12 days and regularly aggregates up to 53mm (2.09") of precipitation. Throughout the year, there are 169 rainfall days, and 629.3mm (24.78") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12.6h.

Sunshine

The average sunshine in Frankfurt is 5.2h.

UV index

In Frankfurt, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in September in Frankfurt?

In September, the average high-temperature is 20.3°C (68.5°F), and the average low-temperature is 10.5°C (50.9°F).

How much does it rain in Frankfurt in September?

In Frankfurt, Germany, in September, during 12 rainfall days, 53mm (2.09") of precipitation is typically accumulated.

How many hours of daylight does Frankfurt have in September?

In Frankfurt, the average length of the day in September is 12.6h.

How many hours of sunshine does Frankfurt have in September?

In Frankfurt, the average sunshine in September is 5.2h.

What is the UV index intensity in September in Frankfurt?

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV radiation.
Average temperature in September - Frankfurt, Germany
  • Average high temperature in September: 20.3°C

The warmest month (with the highest average high temperature) is July (25.5°C).
The month with the lowest average high temperature is January (4.2°C).

  • Average low temperature in September: 10.5°C

The month with the highest average low temperature is July (14.4°C).
Coldest months (with the lowest average low temperature) are January and February (-1.1°C).

Average rainfall in September - Frankfurt, Germany
  • Average rainfall in September: 53mm

The wettest month (with the highest rainfall) is July (64.7mm).
The driest month (with the lowest rainfall) is February (40.9mm).

Average rainfall days in September - Frankfurt, Germany
  • Average rainfall days in September: 12 days

Months with the highest number of rainy days are January and December (16 days).
Months with the lowest number of rainy days are September and October (12 days).

Average daylight in September / Average sunshine in September - Frankfurt, Germany
  • Average daylight in September: 12.6h

The month with the longest days is June (Average daylight: 16.3h).
The month with shortest days is December (Average daylight: 8.2h).

  • Average sunshine in September: 5.2h

The month with most sunshine is July (Average sunshine: 7.5h).
The month with least sunshine is December (Average sunshine: 1.3h).

Average UV index in September - Frankfurt, Germany
  • Average UV index in September: 4

The month with the highest UV index is June (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 1).