Climate averages 1991–2020
Sendai weather
in December.
A cold, 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 cold month in Sendai: daytime highs average 6.9°C and nights cool to about 0.3°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 58 mm of rain on roughly 11 days, which makes December a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 34 min on an average December day.
The nearest other city in this atlas is Natori-shi (11 km away). In December its highs average 7.6°C, 0.7°C warmer than Sendai, with 55 mm of rain.
Among the 303 cities listed in Japan, Sendai ranks joint 259th of 303 for the warmest December highs and joint 60th of 303 for the driest December (rainfall, lowest first). The mean December high of those 303 cities is 9.5°C; Sendai is 2.6°C cooler than that mean.
From December to January, average highs fall by 2.8°C to 4.1°C, and monthly rainfall rises from 58 mm to 63 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
Sendai climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 4.1°C-2.6°C | -2.6°C | 63 | 11.1 | 9.810 h |
| February | 4.9°C-2.9°C | -2.9°C | 49 | 9.3 | 10.711 h |
| March | 8.4°C-0.1°C | -0.1°C | 87 | 11.6 | 11.912 h |
| April | 13.8°C4.7°C | 4.7°C | 94 | 11.2 | 13.213 h |
| May | 18.3°C10.3°C | 10.3°C | 103 | 11.4 | 14.214 h |
| June | 21.2°C15.1°C | 15.1°C | 129 | 13.4 | 14.815 h |
| July | 24.7°C19.4°C | 19.4°C | 187 | 17.3 | 14.515 h |
| August | 26.2°C21.0°C | 21.0°C | 169 | 16.1 | 13.614 h |
| September | 23.3°C17.7°C | 17.7°C | 167 | 14.3 | 12.512 h |
| October | 18.2°C11.6°C | 11.6°C | 141 | 11.0 | 11.211 h |
| November | 12.6°C5.2°C | 5.2°C | 63 | 9.3 | 10.110 h |
| December, selected | 6.9°C0.3°C | 0.3°C | 58 | 11.0 | 9.610 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
- Natori-shi in DecemberJapan · 11 kmHigh 7.6°C · Low 1.7°C · 55 mm rain
- Ōsaki in DecemberJapan · 37 kmHigh 6.2°C · Low -1.5°C · 58 mm rain
- Ishinomaki in DecemberJapan · 41 kmHigh 7.5°C · Low 2.6°C · 56 mm rain
- Yamagata in DecemberJapan · 44 kmHigh 3.9°C · Low -3.0°C · 120 mm rain
- Tome in DecemberJapan · 55 kmHigh 6.3°C · Low -0.9°C · 52 mm rain
- Fukushima in DecemberJapan · 67 kmHigh 6.9°C · Low -1.0°C · 55 mm rain
- Ichinoseki in DecemberJapan · 76 kmHigh 5.3°C · Low -1.9°C · 58 mm rain
- Yonezawa in DecemberJapan · 77 kmHigh 4.7°C · Low -1.6°C · 181 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 Sendai) is explained once on the Sendai year overview and on the Sources, method and limits page.