Tokyo weather in January
In January, Tokyo has an average high of 9 °C48 °F and an average low of 1 °C33 °F, with about 80 mm3.2 in of precipitation. January is the coldest month of the year and ranks 11th for precipitation.
How January compares with other months
Compared with December, January is 2.6 °C4.8 °F cooler on average. Compared with February, January is 0.9 °C1.7 °F cooler on average and wetter by 6 mm0.2 in. Daylight lasts about 10.0 hours around the middle of the month. Average relative humidity is 75% and the average cloud amount 48%.
Is January a good time to visit Tokyo?
January is not among the most comfortable months by our comfort score: it is cool (average high 9 °C48 °F), nights are cold (average low 1 °C33 °F) and it is fairly wet (80 mm3.2 in). The most comfortable months in Tokyo are May.
What to wear in January
For Tokyo in January, pack a warm coat, layers and closed shoes.
January in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Tokyo | 948 | 133 | 803.2 |
| Kawaguchi | 846 | −229 | 642.5 |
| Saitama | 745 | −228 | 532.1 |
| Yokohama | 847 | −130 | 662.6 |
| Abiko | 846 | −229 | 642.5 |
| Chiba | 948 | 133 | 803.2 |
| Koga | 846 | −229 | 642.5 |
| Kumagaya | 745 | −228 | 532.1 |
| Narita | 847 | 337 | 702.7 |
Nearby places that are more than 1 °C1.8 °F cooler: Kawaguchi, Saitama, Yokohama and Abiko.
Other months in Tokyo
- January9 °C48 °F / 1 °C33 °F
- February10 °C50 °F / 1 °C34 °F
- March13 °C56 °F / 4 °C39 °F
- April18 °C65 °F / 9 °C48 °F
- May23 °C73 °F / 14 °C57 °F
- June25 °C78 °F / 18 °C64 °F
- July29 °C84 °F / 22 °C71 °F
- August31 °C87 °F / 23 °C74 °F
- September27 °C81 °F / 20 °C68 °F
- October22 °C71 °F / 14 °C58 °F
- November17 °C62 °F / 9 °C48 °F
- December11 °C52 °F / 3 °C38 °F
Frequently asked questions
How warm is Tokyo in January?
In January the average high in Tokyo is 9 °C (48 °F) and the average low is 1 °C (33 °F).
Does it rain a lot in Tokyo in January?
On average about 80 mm (3.2 in) of precipitation falls in January; it ranks 11th of the 12 months.
Is January the warmest month in Tokyo?
No. The warmest month in Tokyo is August, with an average high of 31 °C (87 °F). The coldest month is January, with an average low of 1 °C (33 °F).
How long is the day in Tokyo in January?
In the middle of January the day in Tokyo lasts about 10.0 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Tokyo in January?
The average relative humidity in January is about 75%. This is a long-term average for the whole day.
How cloudy is Tokyo in January?
On average about 48% of the sky is covered by cloud in January. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.