Tokyo Weather in January
Japan · Humid Subtropical climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
January in Tokyo sees average temperatures ranging from a low of 0.2°C (32.4°F) to a high of 9.4°C (48.9°F), with a mean of 4.4°C (39.9°F). Compared to the annual average of 15.9°C (60.6°F), this month is 11.5°C cooler than the yearly norm. This is the coldest month of the year, with average lows of 0.2°C (32.4°F). Precipitation averages 55.0mm, making it approximately 82.0mm drier than the monthly average of 137.0mm. The city receives an average of 7.4 hours of sunshine per day during January, with relative humidity averaging 65.1%. Wind speeds reach an average maximum of 27.3 km/h. Snowfall averages 3.8cm during January, which can affect travel plans and outdoor activities. For travelers, this month offers a coldest month of the year experience in Tokyo, with drier-than-average conditions compared to the rest of the year.
If you're planning outdoor activities in Tokyo, avoid June-July like the plague. The humidity is suffocating — I've hiked in 90% humidity and it's not fun. October is the sweet spot: clear skies, 18°C, low rain. For cherry blossoms, aim for the last week of March to first week of April. The data confirms what locals have always known: autumn is Tokyo's best-kept secret.
January vs Adjacent Months
| Metric | December | January | February |
|---|---|---|---|
| Mean Temp | 6.5°C (43.7°F) | 4.4°C (39.9°F) | 5.8°C (42.4°F) |
| Rainfall | 50.3mm | 55.0mm | 59.3mm |
| Sunshine | 7.8 hrs | 7.4 hrs | 8.1 hrs |
| Humidity | 67.3% | 65.1% | 64.2% |
| Wind | 21.9 km/h | 27.3 km/h | 29.4 km/h |
| Rainy Days | 7.6 | 9.2 | 9.0 |
| Snowfall | 0.4 cm | 3.8 cm | 8.5 cm |
Seasonal Context
January falls in Winter in the Northern Hemisphere. Winter is the coolest season with the shortest daylight hours. For travelers visiting Tokyo in January, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Tokyo in January?
The average temperature in Tokyo during January ranges from 0.2°C (32.4°F) to 9.4°C (48.9°F), with a mean of 4.4°C (39.9°F).
How much does it rain in Tokyo in January?
Tokyo receives an average of 55.0mm of precipitation in January, spread across approximately 9.2 rainy days.
What should I pack for Tokyo in January?
Based on January weather data, pack heavy winter clothing, thermal layers, and a warm coat.
Is January a good time to visit Tokyo?
January is a cooler month, suitable for travelers who prefer mild weather and fewer crowds. Pack warm layers and enjoy indoor attractions.
Other Months for Tokyo
Cities with Similar January Climate (Humid Subtropical)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 35.68°, 139.69°. Timezone: Asia/Tokyo. Last updated: 2026-07-30.