Historical weather in Daejeon, South Korea
Daejeon weather history for 2023-2025, with daily temperatures, precipitation, monthly summaries, and records from Open-Meteo archive data.
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Weather summary
Across 2023-2025, Daejeon averaged 19.3 C for daily highs and 9.6 C for daily lows across 1096 daily observations.
The warmest month was July 2025, with an average high of 33.1 C, while January 2023 had the lowest average low at -5.0 C.
The wettest month was July 2023, totaling 482.6 mm of precipitation.
The hottest day reached 38.4 C on July 29, 2025; the coldest night fell to -15.2 C on January 25, 2023.
Monthly summary table
| Year | Month | Avg low C | Avg high C | Rain and snow mm | Days |
|---|---|---|---|---|---|
| 2023 | January | -5.0 | 4.7 | 36.0 | 31 |
| 2023 | February | -3.2 | 7.8 | 6.4 | 28 |
| 2023 | March | 2.7 | 17.2 | 23.4 | 31 |
| 2023 | April | 7.5 | 20.3 | 60.4 | 30 |
| 2023 | May | 13.0 | 25.0 | 115.3 | 31 |
| 2023 | June | 18.6 | 29.8 | 162.7 | 30 |
| 2023 | July | 22.6 | 29.8 | 482.6 | 31 |
| 2023 | August | 23.1 | 30.9 | 360.7 | 31 |
| 2023 | September | 19.0 | 26.7 | 245.7 | 30 |
| 2023 | October | 9.6 | 20.1 | 13.3 | 31 |
| 2023 | November | 2.7 | 12.3 | 68.6 | 30 |
| 2023 | December | -1.7 | 6.7 | 96.7 | 31 |
| 2024 | January | -3.9 | 5.1 | 30.1 | 31 |
| 2024 | February | -0.4 | 8.5 | 89.7 | 29 |
| 2024 | March | 0.9 | 12.0 | 59.4 | 31 |
| 2024 | April | 9.1 | 20.9 | 47.6 | 30 |
| 2024 | May | 11.9 | 23.9 | 135.2 | 31 |
| 2024 | June | 17.5 | 29.9 | 99.9 | 30 |
| 2024 | July | 23.5 | 30.1 | 383.9 | 31 |
| 2024 | August | 24.4 | 33.0 | 65.4 | 31 |
| 2024 | September | 21.7 | 30.4 | 118.6 | 30 |
| 2024 | October | 11.6 | 20.5 | 106.2 | 31 |
| 2024 | November | 4.8 | 14.5 | 45.9 | 30 |
| 2024 | December | -2.1 | 5.2 | 5.5 | 31 |
| 2025 | January | -3.8 | 4.5 | 9.3 | 31 |
| 2025 | February | -4.5 | 3.8 | 13.3 | 28 |
| 2025 | March | 2.0 | 12.7 | 53.6 | 31 |
| 2025 | April | 7.2 | 20.2 | 69.5 | 30 |
| 2025 | May | 12.3 | 23.7 | 85.4 | 31 |
| 2025 | June | 18.9 | 28.8 | 280.7 | 30 |
| 2025 | July | 23.7 | 33.1 | 178.4 | 31 |
| 2025 | August | 23.8 | 32.1 | 94.3 | 31 |
| 2025 | September | 20.1 | 27.3 | 206.8 | 30 |
| 2025 | October | 13.3 | 21.2 | 168.8 | 31 |
| 2025 | November | 3.8 | 14.1 | 17.7 | 30 |
| 2025 | December | -2.2 | 6.5 | 30.0 | 31 |
Daily weather records
| Record | Date | Value |
|---|---|---|
| Hottest day | July 29, 2025 | 38.4 C |
| Coldest night | January 25, 2023 | -15.2 C |
| Wettest day | August 10, 2023 | 183.5 mm |
Related pages
Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.