Climate averages 1991–2020
Sendai weather
in January.
A cold, moderately wet month: the coolest and the joint 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a cold month in Sendai: daytime highs average 4.1°C and nights cool to about -2.6°C. By daytime temperature it is the coolest month of the year.
Expect about 63 mm of rain on roughly 11 days, which makes January a moderately wet month (the joint 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 50 min on an average January day.
The nearest other city in this atlas is Natori-shi (11 km away). In January its highs average 4.8°C, 0.7°C warmer than Sendai, with 56 mm of rain.
Among the 303 cities listed in Japan, Sendai ranks joint 252nd of 303 for the warmest January highs and joint 116th of 303 for the driest January (rainfall, lowest first). The mean January high of those 303 cities is 7.0°C; Sendai is 2.9°C cooler than that mean.
From January to February, average highs rise by 0.8°C to 4.9°C, and monthly rainfall falls from 63 mm to 49 mm.
The annual picture
January 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, selected | 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 | 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
January in nearby cities
- Natori-shi in JanuaryJapan · 11 kmHigh 4.8°C · Low -1.0°C · 56 mm rain
- Ōsaki in JanuaryJapan · 37 kmHigh 3.6°C · Low -4.2°C · 56 mm rain
- Ishinomaki in JanuaryJapan · 41 kmHigh 4.7°C · Low 0.0°C · 52 mm rain
- Yamagata in JanuaryJapan · 44 kmHigh 0.8°C · Low -6.4°C · 126 mm precipitation
- Tome in JanuaryJapan · 55 kmHigh 3.7°C · Low -3.4°C · 47 mm rain
- Fukushima in JanuaryJapan · 67 kmHigh 3.8°C · Low -4.3°C · 64 mm rain
- Ichinoseki in JanuaryJapan · 76 kmHigh 2.6°C · Low -5.2°C · 51 mm rain
- Yonezawa in JanuaryJapan · 77 kmHigh 1.7°C · Low -4.6°C · 190 mm precipitation
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.