September weather forecast and climate
Lahti, Finland

September, the first month of the autumn, in Lahti, is still a cool month, with average temperature ranging between max. 12.8°C (55°F) and min. 5°C (41°F).

Temperature

The average high-temperature, is 12.8°C (55°F), while the average low-temperature is 5°C (41°F).

Rainfall

In Lahti, it is raining for 14 days, with typically 70mm (2.8") of accumulated precipitation. In Lahti, during the entire year, the rain falls for 144 days and collects up to 650mm (25.6") of precipitation.

Daylight

In Lahti, the average length of the day in September is 12.9h.

What is the temperature in September in Lahti?

In September, the average high-temperature is 12.8°C (55°F), and the average low-temperature is 5°C (41°F).

How much does it rain in Lahti in September?

In Lahti, in September, it is raining for 14 days, with typically 70mm (2.8") of accumulated precipitation.

How many hours of daylight does Lahti have in September?

In Lahti, Finland, the average length of the day in September is 12.9h.
Average temperature in September - Lahti, Finland
  • Average high temperature in September: 12.8°C

The warmest month (with the highest average high temperature) is July (22.2°C).
The month with the lowest average high temperature is February (-2.8°C).

  • Average low temperature in September: 5°C

The month with the highest average low temperature is July (11.1°C).
The coldest month (with the lowest average low temperature) is February (-12.2°C).

Average rainfall in September - Lahti, Finland
  • Average rainfall in September: 70mm

The wettest month (with the highest rainfall) is August (80mm).
Driest months (with the lowest rainfall) are February and April (30mm).

Average rainfall days in September - Lahti, Finland
  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is October (17 days).
The month with the lowest number of rainy days is February (8 days).

Average daylight in September - Lahti, Finland
  • Average daylight in September: 12.9h

The month with the longest days is June (Average daylight: 19.1h).
The month with shortest days is December (Average daylight: 5.7h).

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