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

81.9

°F

July 24, 18:24

Trend:

increasing

Yesterday:

80.3°F

Tomorrow:

82.1°F

Sunrise:

05:40

Sunset:

19:40

Day Length:

14 h. 0 min.

Jeju City in July

Minimum:

59.4°F

Average:

60.9°F

Maximum:

62.0°F

Sea water temperature in Jeju City today

As of now, in Jeju City, the water temperature is 81.9°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 2.5°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable increase in temperature. This indicates a warming trend over the past day. 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 83.0°F on 2017, while the historical minimum was 73.7°F on 2020.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 82.6°F, with minimum temperature starting at 82.1°F, while the maximum might reach 83.9°F.

Daily water temperature in Jeju City

Date Current Year

actual* / forecast**

last year 10 years average
Jul 10 75.0°F 81.7°F 76.0°F
Jul 11 76.3°F 80.2°F 76.2°F
Jul 12 76.8°F 79.8°F 76.6°F
Jul 13 77.2°F 79.6°F 76.9°F
Jul 14 77.0°F 78.8°F 76.9°F
Jul 15 77.9°F 79.2°F 77.3°F
Jul 16 77.3°F 79.1°F 77.5°F
Jul 17 77.4°F 78.8°F 77.6°F
Jul 18 78.6°F 79.3°F 77.7°F
Jul 19 79.7°F 79.3°F 78.2°F
Jul 20 78.9°F 80.3°F 78.7°F
Jul 21 79.5°F 80.3°F 78.9°F
Jul 22 79.4°F 82.9°F 78.9°F
Jul 23 80.3°F 83.0°F 79.1°F
Jul 24 81.9°F 82.2°F 79.3°F
Jul 25 82.1°F 80.0°F 79.5°F
Jul 26 82.1°F 79.7°F 79.6°F
Jul 27 82.1°F 81.0°F 79.6°F
Jul 28 82.2°F 80.4°F 79.6°F
Jul 29 82.9°F 81.3°F 80.4°F
Jul 30 83.0°F 81.3°F 80.4°F
Jul 31 83.9°F 83.5°F 81.3°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, 59.8°F in Spring, 76.0°F in Summer, and 72.9°F in Autumn.