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

74.2

°F

July 14, 16:32

Trend:

increasing

Yesterday:

74.1°F

Tomorrow:

74.5°F

Sunrise:

05:18

Sunset:

19:39

Day Length:

14 h. 21 min.

Ulsan in July

Minimum:

57.1°F

Average:

58.6°F

Maximum:

60.1°F

Sea water temperature in Ulsan today

As of now, in Ulsan, the water temperature is 74.2°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 1.0°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 considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 76.4°F on 2022, while the historical minimum was 70.8°F on 2015.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 75.3°F, with minimum temperature starting at 74.5°F, while the maximum might reach 76.6°F.

Daily water temperature in Ulsan

Date Current Year

actual* / forecast**

last year 10 years average
Jun 30 73.2°F 70.8°F 71.3°F
Jul 1 72.7°F 70.6°F 71.3°F
Jul 2 75.2°F 71.0°F 71.7°F
Jul 3 74.3°F 71.2°F 71.8°F
Jul 4 77.1°F 73.1°F 72.4°F
Jul 5 76.4°F 73.3°F 72.4°F
Jul 6 76.0°F 73.7°F 72.7°F
Jul 7 77.0°F 73.8°F 72.6°F
Jul 8 75.8°F 73.4°F 72.8°F
Jul 9 76.3°F 73.1°F 73.0°F
Jul 10 76.6°F 72.5°F 73.2°F
Jul 11 76.3°F 72.3°F 73.3°F
Jul 12 75.8°F 72.1°F 73.3°F
Jul 13 74.1°F 72.8°F 73.2°F
Jul 14 74.2°F 72.5°F 73.3°F
Jul 15 74.5°F 72.4°F 73.5°F
Jul 16 74.8°F 72.5°F 73.8°F
Jul 17 75.1°F 72.4°F 74.1°F
Jul 18 75.1°F 72.4°F 74.2°F
Jul 19 75.4°F 72.7°F 74.4°F
Jul 20 76.1°F 73.1°F 75.2°F
Jul 21 76.6°F 74.8°F 75.6°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 83 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 58.1°F in Winter, 58.4°F in Spring, 74.1°F in Summer, and 71.1°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Pohang 75.9°F 34mi
Busan 76.7°F 34mi
Changwon 78.9°F 42mi

* current water temperature in this city

** straight line distance from Ulsan