September weather forecast and climate
Heidelberg, Germany

What is the temperature in September in Heidelberg?

The average high-temperature, in September, is 21.5°C (70.7°F), while the average low-temperature is 10.6°C (51.1°F).

How much does it rain in Heidelberg in September?

In Heidelberg, in September, typically, 53mm (2.1") of precipitation is accumulated.
Average temperature in September - Heidelberg, Germany
  • Average high temperature in September: 21.5°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 (3.8°C).

  • Average low temperature in September: 10.6°C

The month with the highest average low temperature is July (14°C).
The coldest month (with the lowest average low temperature) is January (-1.4°C).

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

The wettest month (with the highest rainfall) is June (86mm).
Driest months (with the lowest rainfall) are February, March and September (53mm).

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

The month with the longest days is June (Average daylight: 16.2h).
The month with shortest days is December (Average daylight: 8.3h).

  • 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: 1.1h).