Shanghai · August
Run in the pre-dawn.
Average high is 89°F with a 78°F overnight low. Humidity averages 81% — 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
89° / 78°F
Humidity
81%
Rain days
21/mo
Wind
11 mph
What August feels like in Shanghai
Sunrise
05:20
Mid-month average
Sunset
18:35
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 Shanghai in August
The kit for August in Shanghai: light, breathable, and moisture-wicking — singlet or short-sleeve only, a water-resistant cap or jacket on standby.
August vs the surrounding months
vs July
0° avg high
-1 rain days
Shanghai in July →
August
89°F avg high
21 rain days
Best: pre-dawn
vs September
+7° avg high
+3 rain days
Shanghai in September →
Frequently Asked Questions
What is the best time of day to run in Shanghai in August?+
Pre-dawn. Humid heat punishes mid-morning — get out before sunrise for the only truly comfortable window.
What's the average temperature in Shanghai in August?+
Average high 89°F, average low 78°F.
How does August compare to surrounding months in Shanghai?+
Compared to July (avg high 89°F), August is warmer. Compared to September (avg high 81°F), August is warmer.
Does it rain often in Shanghai in August?+
Expect about 21 measurable rain days in August, on average.