All data are in degrees Fahrenheit

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Water temperature in Jeju City

Detailed information about the current water temperature in Jeju City. 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 Jeju City now

58.9

°F

March 12, 00:26

Trend:

stable

Yesterday:

59.1°F

Tomorrow:

59.3°F

Sunrise:

06:49

Sunset:

18:39

Day Length:

11 h. 50 min.

Jeju City in March

Minimum:

59.6°F

Average:

61.0°F

Maximum:

62.6°F

Sea water temperature in Jeju City today

As of now, in Jeju City, the water temperature is 58.9°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 1.8°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

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 58.6°F on 2020, while the historical minimum was 55.6°F on 2018.

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 59.6°F, with minimum temperature starting at 59.3°F, while the maximum might reach 59.8°F.

Daily water temperature in Jeju City

Date Current Year

actual* / forecast**

last year 10 years average
Feb 26 58.6°F 55.8°F 57.5°F
Feb 27 58.7°F 55.2°F 57.6°F
Feb 28 58.9°F 55.1°F 57.9°F
Mar 1 58.8°F 55.2°F 57.5°F
Mar 2 59.0°F 56.3°F 57.7°F
Mar 3 58.8°F 56.3°F 57.7°F
Mar 4 57.8°F 56.2°F 57.2°F
Mar 5 57.9°F 55.7°F 57.3°F
Mar 6 58.3°F 54.9°F 57.3°F
Mar 7 58.2°F 55.7°F 57.3°F
Mar 8 58.8°F 55.7°F 57.6°F
Mar 9 58.7°F 56.6°F 57.6°F
Mar 10 58.6°F 56.1°F 57.6°F
Mar 11 59.1°F 56.2°F 57.4°F
Mar 12 58.9°F 55.8°F 57.1°F
Mar 13 59.3°F 55.8°F 57.5°F
Mar 14 59.7°F 56.1°F 57.9°F
Mar 15 59.8°F 56.2°F 58.0°F
Mar 16 59.8°F 56.2°F 58.0°F
Mar 17 59.7°F 56.0°F 58.0°F
Mar 18 59.5°F 56.6°F 57.7°F
Mar 19 59.4°F 56.2°F 57.6°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 Jeju City by month

In Jeju City, the months July through September offer comfortable swimming conditions, which amounts to 106 swimming days.
The warmest water in Jeju City was recorded on August 14, 2016, reaching a 86.5°F. While the coldest temperature occurred on March 6, 2025, dipping to 54.9°F. The average readings by season are 60.3°F in Winter, 59.7°F in Spring, 75.9°F in Summer, and 72.9°F in Autumn.