September 2026
Historical dataDaily high, low, and average
Load the same period from the previous 15 years.
Key findings from analysis for selected period
Average highs of 27.3°C in Seoul. Hot conditions.
The most extreme day in this period:
Hottest day: 31.0°C
1 day where humidity amplified heat sensation (36.9°C heat index). 30.2°C temperature felt like 36.9°C due to 75% humidity.
Average humidity of 65% represents typical moderate moisture conditions. Generally comfortable range for most activities. Humidity varied significantly (48%-95% range).