Weather in Kosai in January
Kosai, Japan averages a high of 9°C (48.2°F) and low of 1.5°C (34.7°F) in January, with 5 rain days and 8.3 hours of daily sunshine. Travel score: 64.2/100 (Good). The best time to visit Kosai is May.
High
9°C48°F
Low
2°C35°F
🌧️
5
rain days
☀️
8.3
hrs/day sunshine
💧
66%
humidity
64— Good
January in Kosai is cool and mostly dry — bundle up and enjoy the cool weather.
What are the average temperatures in Kosai?
How much does it rain in Kosai in January?
Kosai receives an average of 61.2mm of rainfall across 5 rainy days in January. The annual total is 1872.1mm.
What should I pack for Kosai in January?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Warm coat
Cool weather with highs around 9°C
🧶
Sweaters and warm layers
Layer up for comfort
🧤
Warm gloves
Cold nights around 2°C
🧣
Warm scarf
Protect against cold winds
Traveling to Japan in January?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31