Seoul weather in 2023
Seoul weather in 2023, with 365 daily observations from Open-Meteo archive data.
Interactive graph
Open Seoul in the interactive graph
Use the graph view to inspect 2023 alongside other available years for Seoul.
Year summary
In 2023, Seoul averaged 17.1 C for daily highs and 7.9 C for daily lows.
A 1991-2020 normal is not available for this location yet, so this page compares 2023 with the 2023-2025 archive baseline. The 2023 average daily high was -0.4 C from that baseline, and total precipitation was +162.2 mm from the baseline total.
The warmest month was August, with an average high of 29.3 C, while January had the lowest average low at -7.8 C.
The wettest month was July, totaling 417.9 mm. The hottest day reached 33.9 C on June 19, 2023.
Monthly averages and precipitation
| Month | Avg low C | Avg high C | Rain and snow mm | Days |
|---|---|---|---|---|
| January | -7.8 | 1.9 | 36.3 | 31 |
| February | -4.4 | 5.8 | 2.6 | 28 |
| March | 1.2 | 14.1 | 18.1 | 31 |
| April | 6.6 | 17.7 | 103.7 | 30 |
| May | 12.2 | 22.9 | 166.8 | 31 |
| June | 17.6 | 25.9 | 220.3 | 30 |
| July | 22.1 | 28.8 | 417.9 | 31 |
| August | 22.5 | 29.3 | 311.0 | 31 |
| September | 18.6 | 25.9 | 144.9 | 30 |
| October | 9.3 | 18.9 | 25.0 | 31 |
| November | 0.9 | 9.6 | 104.3 | 30 |
| December | -4.3 | 4.2 | 81.2 | 31 |
Daily records in 2023
| Record | Date | Value |
|---|---|---|
| Hottest day | June 19, 2023 | 33.9 C |
| Coldest night | January 25, 2023 | -18.5 C |
| Wettest day | August 10, 2023 | 74.6 mm |
Related pages
Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.