Ulsan weather in July
Temperature, sea and sunshine in July: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in July
Good
Best time to visit: April – June, September – October
What is the weather like in Ulsan in July?
In July, Ulsan is hot: daytime highs average 27 °C, and even at night it stays warm at around 23 °C. The sea averages 23.3 °C – pleasant for swimming. Expect around 5 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 213 mm in total. The air is often humid and muggy. All in all, July is a good month for a holiday in Ulsan.
July compared
How the weather changes from June to August. Tap a month to open it.
More details for July
- Daylight
- 14 h 21 min05:18 – 19:39
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 30 daysdew point 18 °C or moreAll months
- Wind
- 17 km/haverage daily peakAll months
- Cloud cover
- 74 %on averageAll months
- Hot days
- 5 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+9Asia/Seoul
How the score comes together
- Temperatureweight 50 %99 %
- Sunshineweight 20 %33 %
- Few rainy daysweight 30 %30 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in July
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Ulsan in July: quick answers
Is Ulsan hot in July?
Yes. In July, Ulsan is hot: daytime highs average 27 °C and nights stay around 23 °C. On about 5 days the thermometer climbs to 30 °C or more.
Can you swim in Ulsan in July?
Yes. In July the sea averages 23.3 °C – pleasant for swimming.
Does it rain much in Ulsan in July?
Rain is frequent, with about 14 rainy days and 213 mm in total.
Ulsan month by month
The whole year in UlsanAll destinations: South KoreaWhere to go in JulySea temperature in July
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences