Ulsan weather in 2023
Ulsan weather in 2023, with 365 daily observations from Open-Meteo archive data.
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Use the graph view to inspect 2023 alongside other available years for Ulsan.
Year summary
In 2023, Ulsan averaged 19.7 C for daily highs and 9.3 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 -0.1 C from that baseline, and total precipitation was +113.0 mm from the baseline total.
The warmest month was August, with an average high of 30.2 C, while January had the lowest average low at -3.8 C.
The wettest month was May, totaling 223.9 mm. The hottest day reached 34.3 C on August 4, 2023.
Monthly averages and precipitation
| Month | Avg low C | Avg high C | Rain and snow mm | Days |
|---|---|---|---|---|
| January | -3.8 | 7.2 | 61.2 | 31 |
| February | -1.2 | 10.4 | 42.6 | 28 |
| March | 4.1 | 17.1 | 67.7 | 31 |
| April | 7.9 | 19.2 | 72.9 | 30 |
| May | 12.3 | 22.5 | 223.9 | 31 |
| June | 17.8 | 27.0 | 195.7 | 30 |
| July | 22.2 | 29.5 | 221.3 | 31 |
| August | 23.1 | 30.2 | 222.1 | 31 |
| September | 19.4 | 26.7 | 188.9 | 30 |
| October | 9.2 | 21.5 | 4.7 | 31 |
| November | 2.2 | 15.0 | 34.5 | 30 |
| December | -1.9 | 9.1 | 97.8 | 31 |
Daily records in 2023
| Record | Date | Value |
|---|---|---|
| Hottest day | August 4, 2023 | 34.3 C |
| Coldest night | January 25, 2023 | -13.1 C |
| Wettest day | August 10, 2023 | 87.0 mm |
Related pages
Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.