Finland · 1991–2020 normal
Perniö in
January.
Typical January weather in Perniö: -1°C by day, -7°C at night, 50 mm of rain over 10.4 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high-1°C
Typical low-7°C
Rain50 mm
Wet days10.4
Comfort score 5 this month (July leads the year at 84). Daylight is calculated as 6 h 36 from latitude 60.20°. Open-water sea temperature is 2.6°C (39 km from the place centre).
Event window
Long northern nights in January
At 60.2° the calculated mid-month daylight is 6 h 36. That darkness, not an aurora observation, is why this latitude is sought for northern or southern lights in January. Typical nights are -7°C.
Event window
Frost-level nights in January
The measured night-time normal is -7°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 642113
- NOAA station
- FIE00142035 · SALO KARKKA
- Station distance
- 19.3 km from the place centre
- Coverage
- Good coverage · 23 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.