Finland · 1991–2020 normal
Siuntio in
September.
Typical September weather in Siuntio: 15°C by day, 8.9°C at night, 59 mm of rain over 8.6 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high15°C
Typical low8.9°C
Rain59 mm
Wet days8.6
Comfort score 51 this month (July leads the year at 82). Daylight is calculated as 12 h 46 from latitude 60.14°. Open-water sea temperature is 14.4°C (22 km from the place centre).
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 636608
- NOAA station
- FIE00142106 · LOHJA PORLA
- Station distance
- 15.2 km from the place centre
- Coverage
- Strong coverage · 30 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.