Yokohama Weather in December
Japan · Humid Subtropical climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
December in Yokohama sees average temperatures ranging from a low of 3.3°C (37.9°F) to a high of 11.8°C (53.2°F), with a mean of 7.3°C (45.1°F). Compared to the annual average of 16.1°C (61.0°F), this month is 8.8°C cooler than the yearly norm. Precipitation averages 48.1mm, making it approximately 92.0mm drier than the monthly average of 140.0mm. This is the driest month of the year, with just 48.1mm of precipitation. The city receives an average of 7.8 hours of sunshine per day during December, with relative humidity averaging 65.3%. Wind speeds reach an average maximum of 22.8 km/h. Snowfall averages 0.3cm during December, which can affect travel plans and outdoor activities. For travelers, this month offers a temperature 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.
December vs Adjacent Months
| Metric | November | December | January |
|---|---|---|---|
| Mean Temp | 13.3°C (55.9°F) | 7.3°C (45.1°F) | 5.0°C (41.0°F) |
| Rainfall | 84.4mm | 48.1mm | 55.6mm |
| Sunshine | 7.6 hrs | 7.8 hrs | 7.4 hrs |
| Humidity | 72.0% | 65.3% | 64.5% |
| Wind | 23.9 km/h | 22.8 km/h | 25.5 km/h |
| Rainy Days | 10.0 | 7.6 | 9.6 |
| Snowfall | 0.0 cm | 0.3 cm | 4.0 cm |
Seasonal Context
December falls in Winter in the Northern Hemisphere. Winter is the coolest season with the shortest daylight hours. For travelers visiting Yokohama in December, 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 December?
The average temperature in Yokohama during December ranges from 3.3°C (37.9°F) to 11.8°C (53.2°F), with a mean of 7.3°C (45.1°F).
How much does it rain in Yokohama in December?
Yokohama receives an average of 48.1mm of precipitation in December, spread across approximately 7.6 rainy days. This is the driest month of the year.
What should I pack for Yokohama in December?
Based on December weather data, pack warm layers, a medium jacket, and waterproof outerwear.
Is December a good time to visit Yokohama?
December 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 December 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.