Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Härnösand, Sweden

  • Average high temperature in September: 14.9°C

The warmest month (with the highest average high temperature) is July (21.2°C).
The month with the lowest average high temperature is January (-1.7°C).

  • Average low temperature in September: 6.9°C

The month with the highest average low temperature is July (12.7°C).
Coldest months (with the lowest average low temperature) are January and February (-8.2°C).

  • Average rainfall in September: 81.3mm

The wettest month (with the highest rainfall) is September (81.3mm).
The driest month (with the lowest rainfall) is February (41.7mm).

  • Average sea temperature in September: 12.8°C

The best month for swimming (with the highest average sea temperature) is August (17°C).
Coldest months (with the lowest average sea temperature) are February and March (0.3°C).

  • Average daylight in September: 13h

The month with the longest days is June (Average daylight: 19.9h).
The month with shortest days is December (Average daylight: 5.1h).