Tokyo, Japan weather in December

Averages from 2021–2025 (155 days of record).

Average high: 53°F
Average low: 36°F
Rainy days: ~6 per month
Total precipitation: 2.2 in
Warmest recorded: 69°F
Coldest recorded: 24°F

Expect December days in Tokyo, Japan to top out around 53°F and cool to about 36°F overnight, with roughly 6 days of measurable rain across the month. In recent years December has ranged from 24°F to 69°F.

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Current Tokyo, Japan forecast → · Historical data by Open-Meteo (ERA5).