Seoul · August
Run in the morning.
Comfortable average high of 84°F, dipping to 72°F at night. Humidity averages 82% — the limiting factor on most runs. Expect 19 rain days — plan around the radar. Humidity rises with the sun — morning runs catch the driest, coolest window.
Avg high / low
84° / 72°F
Humidity
82%
Rain days
19/mo
Wind
9 mph
What August feels like in Seoul
Sunrise
05:48
Mid-month average
Sunset
19:23
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 Seoul in August
The kit for August in Seoul: shorts and a short-sleeve are the standard kit, a water-resistant cap or jacket on standby.
August vs the surrounding months
vs July
0° avg high
-1 rain days
Seoul in July →
August
84°F avg high
19 rain days
Best: morning
vs September
+7° avg high
+8 rain days
Seoul in September →
Frequently Asked Questions
What is the best time of day to run in Seoul in August?+
Morning. Humidity rises with the sun — morning runs catch the driest, coolest window.
What's the average temperature in Seoul in August?+
Average high 84°F, average low 72°F.
How does August compare to surrounding months in Seoul?+
Compared to July (avg high 84°F), August is cooler. Compared to September (avg high 77°F), August is warmer.
Does it rain often in Seoul in August?+
Expect about 19 measurable rain days in August, on average.