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Helsinki weather in September 2020
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- 1414°C max day temperature
- 1717 days with some rainfall
- 77°C min night temperature
- 1313 hours of daylight per day
- 0No heat & humidity
- 7373 mm of monthly rainfall
- 33 (Moderate) UV index
- 1414°C sea temperature
The September weather guide for Helsinki, Finland shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
How warm is it in Helsinki in September?
Daytime temperatures usually reach 14°C in Helsinki in September, falling to 7°C at night.
How sunny is it in Helsinki in September?
There are normally 4 hours of bright sunshine each day in Helsinki in September - that's 33% of daylight hours.
How warm is the sea around Helsinki in September?
The average sea temperature around Helsinki in September is 14°C.
Does it rain in Helsinki in September?
There are usually 17 days with some rain in Helsinki in September and the average monthly rainfall is 73mm.
Helsinki sunrise & sunset times for September 2020
Browse the sunrise & sunset times for Helsinki in September 2020. Select a month to view Helsinki sunrise & sunset times for the next twelve months.
|Date||Sunrise times||Sunset times|
|Tuesday, 1st September 2020||06:15||20:23|
|Tuesday, 15th September 2020||06:49||19:41|
|Wednesday, 30th September 2020||07:24||18:55|
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Metric (°C / mm) | Imperial (°F / inches)
Where is warm in Finland in September for 2020/2021?
Below are average maximum temperatures at popular destinations in Finland in September. Select a destination to see more weather parameters.
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