Taipei · September
Run in the pre-dawn.
Average high is 87°F with a 76°F overnight low. Humidity averages 82% — the limiting factor on most runs. Expect 21 rain days — plan around the radar. Humid heat punishes mid-morning — get out before sunrise for the only truly comfortable window.
Avg high / low
87° / 76°F
Humidity
82%
Rain days
21/mo
Wind
10 mph
What September feels like in Taipei
Sunrise
05:40
Mid-month average
Sunset
17:58
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
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 Taipei in September
The kit for September in Taipei: light, breathable, and moisture-wicking — singlet or short-sleeve only, a water-resistant cap or jacket on standby.
September vs the surrounding months
vs August
-3° avg high
-4 rain days
Taipei in August →
September
87°F avg high
21 rain days
Best: pre-dawn
vs October
+6° avg high
+2 rain days
Taipei in October →
Frequently Asked Questions
What is the best time of day to run in Taipei in September?+
Pre-dawn. Humid heat punishes mid-morning — get out before sunrise for the only truly comfortable window.
What's the average temperature in Taipei in September?+
Average high 87°F, average low 76°F.
How does September compare to surrounding months in Taipei?+
Compared to August (avg high 90°F), September is cooler. Compared to October (avg high 80°F), September is warmer.
Does it rain often in Taipei in September?+
Expect about 21 measurable rain days in September, on average.