Tokyo weather in January
Temperature, sea and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Fair
Best time to visit: April – July, September – November
What is the weather like in Tokyo in January?
In January, Tokyo is cold: daytime highs average 8 °C, and nights often drop below freezing (0 °C). The sea averages 13.1 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain falls on about 6 days, adding up to 62 mm. All in all, January is a so-so month for a holiday in Tokyo.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 47 | 40 | 41 |
| Day | 11° | 8° | 9° |
| Night | 3° | 0° | 0° |
| Sea | 16° | 13° | 12° |
| Sun | 6 h | 7 h | 7 h |
| Rain days | 7 | 6 | 8 |
More details for January
- Daylight
- 9 h 59 min06:50 – 16:49
- UV index
- 3 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or more
- Wind
- 20 km/haverage daily peak
- Cloud cover
- 39 %on average
- Hot days
- 0 days30 °C or more
- Snow days
- 1 day1 cm or more of fresh snow
- Time zone
- UTC+9Asia/Tokyo
How the score comes together
- Temperatureweight 50 %2 %
- Sunshineweight 20 %68 %
- Few rainy daysweight 30 %83 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in January
- Warm jacket
Tokyo in January: quick answers
Is Tokyo hot in January?
No. In January, Tokyo is cold: daytime highs average 8 °C and nights drop to about 0 °C.
Can you swim in Tokyo in January?
Only if you don't mind cold water: in January the sea averages just 13.1 °C. Comfortable swimming is possible from June to October.
Does it rain much in Tokyo in January?
Rain falls on about 6 days, adding up to 62 mm.
Tokyo month by month
The whole year in TokyoAll destinations: JapanWhere to go in January
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)