Tokyo · December
Run in the midday.
Cool month: average high 52°F, low 36°F. Cold mornings warm into runnable midday hours — the windows around noon catch the warmest temperatures.
Avg high / low
52° / 36°F
Humidity
71%
Rain days
9/mo
Wind
14 mph
What December feels like in Tokyo
Sunrise
06:43
Mid-month average
Sunset
16:30
Mid-month average
Time-of-day breakdown
Morning
Coolest, driest air of the day. The window before sunrise is the most reliable comfortable hour.
Midday
Mild but UV and traffic peak. Workable if you don't mind shifting your pace.
Evening
Warm and runnable. Crowded routes but the air's typically calm.
What to wear running in Tokyo in December
The kit for December in Tokyo: a long-sleeve or light jacket for the first mile, a wind-blocking layer for exposed routes.
December vs the surrounding months
vs November
-10° avg high
-3 rain days
Tokyo in November →
December
52°F avg high
9 rain days
Best: midday
vs January
+4° avg high
+1 rain days
Tokyo in January →
Frequently Asked Questions
What is the best time of day to run in Tokyo in December?+
Midday. Cold mornings warm into runnable midday hours — the windows around noon catch the warmest temperatures.
What's the average temperature in Tokyo in December?+
Average high 52°F, average low 36°F.
How does December compare to surrounding months in Tokyo?+
Compared to November (avg high 62°F), December is cooler. Compared to January (avg high 48°F), December is warmer.
Does it rain often in Tokyo in December?+
Expect about 9 measurable rain days in December, on average.