All data are in degrees Fahrenheit

en

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

53.7

°F

March 17, 16:45

Trend:

stable

Yesterday:

54.0°F

Tomorrow:

54.0°F

Sunrise:

06:32

Sunset:

18:31

Day Length:

11 h. 59 min.

Ulsan in March

Minimum:

56.5°F

Average:

59.1°F

Maximum:

60.6°F

Sea water temperature in Ulsan today

As of now, in Ulsan, the water temperature is 53.7°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 2.5°F lower 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 closely matches the previous two weeks' average, indicating a stable trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 57.5°F on 2019, while the historical minimum was 54.7°F on 2022.

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 54.0°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Ulsan

Date Current Year

actual* / forecast**

last year 10 years average
Mar 3 53.2°F 56.5°F 55.7°F
Mar 4 53.3°F 56.9°F 55.7°F
Mar 5 53.5°F 57.0°F 55.7°F
Mar 6 53.5°F 56.9°F 55.8°F
Mar 7 53.3°F 56.8°F 55.7°F
Mar 8 53.4°F 55.9°F 55.6°F
Mar 9 53.3°F 55.2°F 55.5°F
Mar 10 53.6°F 56.0°F 55.4°F
Mar 11 54.0°F 57.1°F 55.8°F
Mar 12 54.5°F 56.2°F 55.8°F
Mar 13 54.8°F 56.0°F 56.0°F
Mar 14 54.0°F 56.5°F 55.9°F
Mar 15 53.9°F 56.4°F 55.7°F
Mar 16 54.0°F 54.9°F 55.9°F
Mar 17 53.7°F 55.7°F 56.2°F
Mar 18 54.0°F 57.3°F 56.5°F
Mar 19 54.1°F 57.7°F 56.6°F
Mar 20 53.8°F 56.5°F 56.3°F
Mar 21 54.0°F 57.4°F 56.5°F
Mar 22 53.9°F 57.0°F 56.4°F
Mar 23 54.2°F 56.9°F 56.7°F
Mar 24 54.2°F 57.2°F 56.7°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, 58.6°F in Spring, 74.1°F in Summer, and 71.1°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Pohang 52.4°F 34mi
Busan 53.0°F 34mi
Changwon 49.3°F 42mi

* current water temperature in this city

** straight line distance from Ulsan