Climate averages 1991–2020
Kasugai weather
in December.
A cool, moderately wet month: the 10th warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cool month in Kasugai: daytime highs average 10.7°C and nights cool to about 1.2°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 55 mm of rain on roughly 6 days, which makes December a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 50 min on an average December day.
The nearest other city in this atlas is Komaki (6 km away). In December its highs average 10.2°C, about as warm as Kasugai, with 55 mm of rain.
Among the 303 cities listed in Japan, Kasugai ranks joint 98th of 303 for the warmest December highs and joint 36th of 303 for the driest December (rainfall, lowest first). The mean December high of those 303 cities is 9.5°C; Kasugai is 1.2°C warmer than that mean.
From December to January, average highs fall by 2.3°C to 8.3°C, and monthly rainfall falls from 55 mm to 54 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Kasugai climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.3°C-1.0°C | -1.0°C | 54 | 5.7 | 10.110 h |
| February | 9.5°C-0.7°C | -0.7°C | 61 | 6.6 | 10.911 h |
| March | 13.3°C2.2°C | 2.2°C | 110 | 10.1 | 11.912 h |
| April | 18.4°C7.3°C | 7.3°C | 123 | 10.6 | 13.113 h |
| May | 22.9°C12.7°C | 12.7°C | 144 | 10.6 | 14.014 h |
| June | 26.0°C17.8°C | 17.8°C | 178 | 14.3 | 14.514 h |
| July | 29.3°C22.2°C | 22.2°C | 190 | 14.9 | 14.314 h |
| August | 30.9°C23.4°C | 23.4°C | 111 | 11.7 | 13.513 h |
| September | 27.3°C19.6°C | 19.6°C | 186 | 12.1 | 12.412 h |
| October | 21.7°C13.0°C | 13.0°C | 171 | 10.3 | 11.311 h |
| November | 16.1°C6.5°C | 6.5°C | 85 | 7.2 | 10.310 h |
| December, selected | 10.7°C1.2°C | 1.2°C | 55 | 6.0 | 9.810 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Komaki in DecemberJapan · 6 kmHigh 10.2°C · Low 0.9°C · 55 mm rain
- Nagoya in DecemberJapan · 9 kmHigh 10.4°C · Low 1.4°C · 55 mm rain
- Seto in DecemberJapan · 12 kmHigh 10.2°C · Low 1.1°C · 55 mm rain
- Tajimi in DecemberJapan · 17 kmHigh 9.7°C · Low 0.6°C · 70 mm rain
- Ichinomiya in DecemberJapan · 17 kmHigh 10.1°C · Low 1.3°C · 65 mm rain
- Ama in DecemberJapan · 17 kmHigh 10.4°C · Low 1.8°C · 65 mm rain
- Kani in DecemberJapan · 19 kmHigh 9.5°C · Low 0.3°C · 68 mm rain
- Kakamigahara in DecemberJapan · 21 kmHigh 9.7°C · Low 0.6°C · 86 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Kasugai) is explained once on the Kasugai year overview and on the Sources, method and limits page.
Nagoya, Komaki and Seto lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.