All data are in degrees Fahrenheit

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Water temperature in Ulsan

Detailed information about the current water temperature in Ulsan. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Ulsan now

79.4

°F

July 27, 17:17

Trend:

stable

Yesterday:

79.8°F

Tomorrow:

79.9°F

Sunrise:

05:27

Sunset:

19:31

Day Length:

14 h. 4 min.

Ulsan in August

Minimum:

56.9°F

Average:

58.9°F

Maximum:

61.4°F

Sea water temperature in Ulsan today

As of now, in Ulsan, the water temperature is 79.4°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 2.0°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to rise a bit.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 80.4°F on 2021, while the historical minimum was 74.2°F on 2020.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 81.1°F, with minimum temperature starting at 79.9°F, while the maximum might reach 82.3°F.

Daily water temperature in Ulsan

Date Current Year

actual* / forecast**

last year 10 years average
Jul 13 77.7°F 74.1°F 73.9°F
Jul 14 78.7°F 74.3°F 74.1°F
Jul 15 75.7°F 75.3°F 74.1°F
Jul 16 77.7°F 75.9°F 74.6°F
Jul 17 77.8°F 75.7°F 74.9°F
Jul 18 77.3°F 75.5°F 75.0°F
Jul 19 77.5°F 75.7°F 75.1°F
Jul 20 77.1°F 75.7°F 75.8°F
Jul 21 77.6°F 75.3°F 76.1°F
Jul 22 78.7°F 77.3°F 76.6°F
Jul 23 78.8°F 78.5°F 76.9°F
Jul 24 78.1°F 77.3°F 77.0°F
Jul 25 79.2°F 79.1°F 77.3°F
Jul 26 79.8°F 79.1°F 77.4°F
Jul 27 79.4°F 80.2°F 77.3°F
Jul 28 79.9°F 80.1°F 77.9°F
Jul 29 80.5°F 80.1°F 78.4°F
Jul 30 80.7°F 81.9°F 78.7°F
Jul 31 81.1°F 82.8°F 79.1°F
Aug 1 81.5°F 82.7°F 79.5°F
Aug 2 81.7°F 82.1°F 79.7°F
Aug 3 82.3°F 82.8°F 80.2°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Ulsan by month

In Ulsan, the months July through September offer comfortable swimming conditions, which amounts to 93 swimming days.
The warmest water in Ulsan was recorded on August 18, 2024, reaching a 85.3°F. While the coldest temperature occurred on March 1, 2025, dipping to 52.5°F. The average readings by season are 58.2°F in Winter, 58.6°F in Spring, 74.5°F in Summer, and 71.4°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Pohang 77.7°F 34mi
Busan 80.6°F 34mi
Changwon 83.9°F 42mi

* current water temperature in this city

** straight line distance from Ulsan