Climate averages 1991–2020
Kawagoe weather
in December.
A cool, moderately wet month: the 10th warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cool month in Kawagoe: daytime highs average 10.1°C and nights cool to about 0.6°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 49 mm of rain on roughly 7 days, which makes December a moderately wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 9 h 46 min on an average December day.
The nearest other city in this atlas is Sayama (9 km away). In December its highs average 10.0°C, about as warm as Kawagoe, with 61 mm of rain.
Among the 303 cities listed in Japan, Kawagoe ranks joint 169th of 303 for the warmest December highs and joint 9th of 303 for the driest December (rainfall, lowest first). The mean December high of those 303 cities is 9.5°C; Kawagoe is 0.6°C warmer than that mean.
From December to January, average highs fall by 2.5°C to 7.7°C, and monthly rainfall rises from 49 mm to 57 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
Kawagoe climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.7°C-2.3°C | -2.3°C | 57 | 6.0 | 10.010 h |
| February | 8.7°C-1.6°C | -1.6°C | 54 | 6.5 | 10.911 h |
| March | 12.3°C1.9°C | 1.9°C | 97 | 11.2 | 11.912 h |
| April | 17.4°C7.2°C | 7.2°C | 106 | 10.7 | 13.113 h |
| May | 21.9°C12.7°C | 12.7°C | 127 | 12.2 | 14.014 h |
| June | 24.5°C17.2°C | 17.2°C | 162 | 14.2 | 14.615 h |
| July | 28.1°C21.3°C | 21.3°C | 170 | 14.7 | 14.314 h |
| August | 29.4°C22.6°C | 22.6°C | 128 | 12.3 | 13.514 h |
| September | 25.6°C19.0°C | 19.0°C | 186 | 14.1 | 12.412 h |
| October | 20.1°C12.9°C | 12.9°C | 196 | 12.4 | 11.311 h |
| November | 15.0°C6.4°C | 6.4°C | 76 | 8.6 | 10.310 h |
| December, selected | 10.1°C0.6°C | 0.6°C | 49 | 6.5 | 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
- Sayama in DecemberJapan · 9 kmHigh 10.0°C · Low 0.5°C · 61 mm rain
- Sakado in DecemberJapan · 10 kmHigh 10.2°C · Low 1.1°C · 49 mm rain
- Niiza in DecemberJapan · 12 kmHigh 10.3°C · Low 1.4°C · 61 mm rain
- Tokorozawa in DecemberJapan · 12 kmHigh 9.8°C · Low 0.6°C · 61 mm rain
- Ageo in DecemberJapan · 14 kmHigh 10.3°C · Low 0.9°C · 49 mm rain
- Yono in DecemberJapan · 14 kmHigh 10.3°C · Low 1.0°C · 52 mm rain
- Iruma in DecemberJapan · 15 kmHigh 9.7°C · Low 0.4°C · 68 mm rain
- Saitama in DecemberJapan · 15 kmHigh 10.4°C · Low 1.2°C · 52 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 Kawagoe) is explained once on the Kawagoe year overview and on the Sources, method and limits page.
Ageo, Kōnosu and Kazo lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.