Over the last 365 complete days, the highest daily maximum at Seoul Incheon was 36°C on Aug 8 2026 and the lowest was -6°C on Jan 20 2026. The observed high is the highest temperature in the airport's own METAR reports during the local calendar day. Updated twice a day.
The first check appears after the first archived day ends.
Scorecard appears after 7 checked days (0/7 so far).
| Month | Average high | Warmest day | Coolest day | Days |
|---|---|---|---|---|
| Oct 2026 | 20.5° | 28° | 12° | 29 |
| Sep 2026 | 26.3° | 31° | 22° | 30 |
| Aug 2026 | 30.8° | 36° | 25° | 31 |
| Jul 2026 | 29.3° | 34° | 26° | 31 |
| Jun 2026 | 26.4° | 31° | 23° | 30 |
| May 2026 | 22.5° | 28° | 15° | 31 |
| Apr 2026 | 17.4° | 24° | 11° | 30 |
| Mar 2026 | 10.6° | 18° | 4° | 31 |
| Feb 2026 | 5.9° | 15° | -5° | 28 |
| Jan 2026 | 0.3° | 9° | -6° | 31 |
| Dec 2025 | 5.3° | 13° | -5° | 31 |
| Nov 2025 | 13.3° | 18° | 5° | 30 |
| Oct 2025 | 17.5° | 18° | 17° | 2 |