Finland · 1991–2020 normal
Lauttasaari in
December.
Typical December weather in Lauttasaari: 1.4°C by day, -2.9°C at night, 58 mm of rain over 11.3 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high1.4°C
Typical low-2.9°C
Rain58 mm
Wet days11.3
Comfort score 5 this month (July leads the year at 85). Daylight is calculated as 5 h 52 from latitude 60.16°. Open-water sea temperature is 4.2°C (4 km from the place centre).
Event window
Long northern nights in December
At 60.2° the calculated mid-month daylight is 5 h 52. That darkness, not an aurora observation, is why this latitude is sought for northern or southern lights in December. Typical nights are -2.9°C.
Event window
Frost-level nights in December
The measured night-time normal is -2.9°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 648635
- NOAA station
- FI000000304 · HELSINKI KAISANIEMI AWS
- Station distance
- 4.6 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.