Climate averages 1991–2020
Ulsan weather
in June.
A warm, wet month: the 4th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Ulsan: daytime highs average 24.4°C and nights cool to about 17.6°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 143 mm of rain on roughly 9 days, which makes June a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 31 min on an average June day.
The nearest other city in this atlas is Ungsang (20 km away). In June its highs average 24.0°C, about as warm as Ulsan, with 143 mm of rain.
Among the 79 cities listed in South Korea, Ulsan ranks joint 63rd of 79 for the warmest June highs and joint 53rd of 79 for the driest June (rainfall, lowest first). The mean June high of those 79 cities is 25.7°C; Ulsan is 1.3°C cooler than that mean.
From June to July, average highs rise by 2.9°C to 27.3°C, and monthly rainfall rises from 143 mm to 216 mm.
The annual picture
June in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Ulsan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.1°C-1.0°C | -1.0°C | 31 | 4.4 | 10.010 h |
| February | 8.2°C0.1°C | 0.1°C | 39 | 5.1 | 10.911 h |
| March | 12.3°C3.6°C | 3.6°C | 71 | 7.4 | 11.912 h |
| April | 17.3°C8.1°C | 8.1°C | 92 | 7.5 | 13.113 h |
| May | 21.6°C13.0°C | 13.0°C | 100 | 7.8 | 14.014 h |
| June, selected | 24.4°C17.6°C | 17.6°C | 143 | 9.1 | 14.515 h |
| July | 27.3°C22.2°C | 22.2°C | 216 | 13.3 | 14.314 h |
| August | 28.3°C23.5°C | 23.5°C | 213 | 14.1 | 13.513 h |
| September | 24.6°C19.4°C | 19.4°C | 173 | 10.4 | 12.412 h |
| October | 20.1°C13.5°C | 13.5°C | 73 | 5.1 | 11.311 h |
| November | 14.3°C6.8°C | 6.8°C | 48 | 4.9 | 10.310 h |
| December | 8.0°C0.8°C | 0.8°C | 27 | 3.6 | 9.810 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Ungsang in JuneSouth Korea · 20 kmHigh 24.0°C · Low 17.6°C · 143 mm rain
- Yangsan in JuneSouth Korea · 34 kmHigh 25.3°C · Low 17.8°C · 159 mm rain
- Gijang in JuneSouth Korea · 34 kmHigh 22.8°C · Low 18.1°C · 165 mm rain
- Gyeongju in JuneSouth Korea · 35 kmHigh 26.7°C · Low 17.7°C · 129 mm rain
- Kimhae in JuneSouth Korea · 52 kmHigh 24.4°C · Low 17.7°C · 159 mm rain
- Pohang in JuneSouth Korea · 55 kmHigh 25.2°C · Low 17.9°C · 120 mm rain
- Busan in JuneSouth Korea · 55 kmHigh 22.8°C · Low 17.9°C · 167 mm rain
- Gyeongsan-si in JuneSouth Korea · 61 kmHigh 28.0°C · Low 17.8°C · 127 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Ulsan) is explained once on the Ulsan year overview and on the Sources, method and limits page.
Ungsang lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.