Climate averages 1991–2020
Toyama weather
in December.
A cold, very wet month: the 10th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Toyama: daytime highs average 6.9°C and nights cool to about -0.7°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 214 mm of rain on roughly 22 days, which makes December a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 42 min on an average December day.
The nearest other city in this atlas is Imizu (11 km away). In December its highs average 7.3°C, about as warm as Toyama, with 214 mm of rain.
Among the 303 cities listed in Japan, Toyama ranks joint 259th of 303 for the warmest December highs and joint 292nd of 303 for the driest December (rainfall, lowest first). The mean December high of those 303 cities is 9.5°C; Toyama is 2.5°C cooler than that mean.
From December to January, average highs fall by 3.6°C to 3.3°C, and monthly rainfall falls from 214 mm to 211 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
Toyama climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.3°C-3.4°C | -3.4°C | 211 | 23.1 | 10.010 h |
| February | 4.0°C-3.4°C | -3.4°C | 167 | 19.2 | 10.811 h |
| March | 8.2°C-0.8°C | -0.8°C | 179 | 18.9 | 11.912 h |
| April | 15.4°C4.5°C | 4.5°C | 150 | 14.5 | 13.113 h |
| May | 20.7°C10.2°C | 10.2°C | 156 | 14.6 | 14.114 h |
| June | 23.9°C15.3°C | 15.3°C | 200 | 15.4 | 14.615 h |
| July | 27.4°C20.0°C | 20.0°C | 273 | 18.5 | 14.414 h |
| August | 28.7°C21.0°C | 21.0°C | 178 | 15.6 | 13.614 h |
| September | 24.3°C17.1°C | 17.1°C | 211 | 15.6 | 12.512 h |
| October | 18.9°C10.8°C | 10.8°C | 180 | 14.6 | 11.311 h |
| November | 13.3°C4.9°C | 4.9°C | 169 | 16.8 | 10.310 h |
| December, selected | 6.9°C-0.7°C | -0.7°C | 214 | 22.0 | 9.710 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
- Imizu in DecemberJapan · 11 kmHigh 7.3°C · Low 0.3°C · 214 mm rain
- Takaoka in DecemberJapan · 19 kmHigh 7.6°C · Low 0.7°C · 183 mm rain
- Kanazawa in DecemberJapan · 55 kmHigh 8.3°C · Low 0.8°C · 230 mm rain
- Matsutō in DecemberJapan · 61 kmHigh 8.3°C · Low 1.4°C · 230 mm rain
- Takayama in DecemberJapan · 63 kmHigh 4.5°C · Low -3.2°C · 159 mm rain
- Azumino in DecemberJapan · 75 kmHigh 4.9°C · Low -3.8°C · 107 mm rain
- Komatsu in DecemberJapan · 76 kmHigh 8.9°C · Low 2.9°C · 230 mm rain
- Matsumoto in DecemberJapan · 85 kmHigh 5.7°C · Low -3.4°C · 107 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 Toyama) is explained once on the Toyama year overview and on the Sources, method and limits page.
Imizu lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.