Bangkok · December
Run in the pre-dawn.
Average high is 87°F with a 72°F overnight low. Humid heat punishes mid-morning — get out before sunrise for the only truly comfortable window.
Avg high / low
87° / 72°F
Humidity
66%
Rain days
7/mo
Wind
8 mph
What December feels like in Bangkok
Sunrise
06:33
Mid-month average
Sunset
17:53
Mid-month average
Time-of-day breakdown
Morning
Steady cool air, low wind, and good light. The standard runner window in most months.
Midday
Heat peaks here. Skip unless you've got shade and pace tolerance.
Evening
Cools off after sunset but still warm. Good for easy efforts; avoid hard intervals if you're chasing pace.
What to wear running in Bangkok in December
The kit for December in Bangkok: light, breathable, and moisture-wicking — singlet or short-sleeve only.
December vs the surrounding months
vs November
-1° avg high
-8 rain days
Bangkok in November →
December
87°F avg high
7 rain days
Best: pre-dawn
vs January
0° avg high
0 rain days
Bangkok in January →
Frequently Asked Questions
What is the best time of day to run in Bangkok in December?+
Pre-dawn. Humid heat punishes mid-morning — get out before sunrise for the only truly comfortable window.
What's the average temperature in Bangkok in December?+
Average high 87°F, average low 72°F.
How does December compare to surrounding months in Bangkok?+
Compared to November (avg high 88°F), December is cooler. Compared to January (avg high 88°F), December is cooler.
Does it rain often in Bangkok in December?+
Expect about 7 measurable rain days in December, on average.