Is Koshimizu hot in December?
Days are typically cold at 0.6°C, while nights average -6.6°C.
Japan · 1991–2020 normal
Koshimizu in
December.
Typical December weather in Koshimizu: 0.6°C by day, -6.6°C at night, 76 mm of rain over 14.2 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high0.6°C
Typical low-6.6°C
Rain76 mm
Wet days14.2
In the year-round weather comparison, December scores 5 out of 100 (July leads the year at 79). Daylight is calculated as 8 h 55 from latitude 43.86°. Open-water sea temperature is 3.0°C (30 km from the place centre).
December at a glance
What is Koshimizu like in December?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 76 mm across about 14 wet days.
How much daylight is there?
There are about 8 h 55 between sunrise and sunset at mid-month, calculated from the place latitude.
Is December a good time to visit?
December ranks 12 of 12 in our weather comparison; July ranks first.
Event window
Frost-level nights in December
The measured night-time normal is -6.6°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 2129447
- NOAA station
- JA000047409 · ABASHIRI
- Station distance
- 22.8 km from the place centre
- Coverage
- Good coverage · 21 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Koshimizu is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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