Yokohama Weather in January
Japan · Humid Subtropical climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
January in Yokohama sees average temperatures ranging from a low of 1.0°C (33.8°F) to a high of 9.4°C (48.9°F), with a mean of 5.0°C (41.0°F). Compared to the annual average of 16.1°C (61.0°F), this month is 11.1°C cooler than the yearly norm. This is the coldest month of the year, with average lows of 1.0°C (33.8°F). Precipitation averages 55.6mm, making it approximately 85.0mm drier than the monthly average of 140.0mm. The city receives an average of 7.4 hours of sunshine per day during January, with relative humidity averaging 64.5%. Wind speeds reach an average maximum of 25.5 km/h. Snowfall averages 4.0cm during January, which can affect travel plans and outdoor activities. For travelers, this month offers a coldest month of the year experience in Yokohama, with drier-than-average conditions compared to the rest of the year.
Yokohama's coastal position gives it a slightly cooler climate than inland Tokyo. I've tracked the temperature differences and found the bay breeze provides natural air conditioning on summer afternoons. The city's waterfront parks and Minato Mirai district are best enjoyed in September and October, when the humidity drops and the skies clear. The data supports what locals know: Yokohama's climate is a few degrees more comfortable than Tokyo's year-round.
January vs Adjacent Months
| Metric | December | January | February |
|---|---|---|---|
| Mean Temp | 7.3°C (45.1°F) | 5.0°C (41.0°F) | 6.3°C (43.3°F) |
| Rainfall | 48.1mm | 55.6mm | 69.2mm |
| Sunshine | 7.8 hrs | 7.4 hrs | 7.9 hrs |
| Humidity | 65.3% | 64.5% | 63.6% |
| Wind | 22.8 km/h | 25.5 km/h | 28.8 km/h |
| Rainy Days | 7.6 | 9.6 | 8.8 |
| Snowfall | 0.3 cm | 4.0 cm | 8.1 cm |
Seasonal Context
January falls in Winter in the Northern Hemisphere. Winter is the coolest season with the shortest daylight hours. For travelers visiting Yokohama 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 Yokohama in January?
The average temperature in Yokohama during January ranges from 1.0°C (33.8°F) to 9.4°C (48.9°F), with a mean of 5.0°C (41.0°F).
How much does it rain in Yokohama in January?
Yokohama receives an average of 55.6mm of precipitation in January, spread across approximately 9.6 rainy days.
What should I pack for Yokohama in January?
Based on January weather data, pack warm layers, a medium jacket, and waterproof outerwear.
Is January a good time to visit Yokohama?
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 Yokohama
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: 35.44°, 139.64°. Timezone: Asia/Tokyo. Last updated: 2026-07-30.