What is the current water temperature in Incheon?

Q: What is the current water temperature in Incheon?

As of now, in Incheon, the water temperature is 12.32°C. 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.

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Water temperature in Incheon

Detailed information about the current water temperature in Incheon. 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.

54.2

°F

May 10, 00:51

Trend:

stable

Yesterday:

53.9°F

Tomorrow:

54.1°F

Sunrise:

05:29

Sunset:

19:30

Day Length:

14 h. 1 min.

Incheon in May

Minimum:

39.2°F

Average:

41.2°F

Maximum:

44.2°F

Sea water temperature in Incheon today

As of now, in Incheon, the water temperature is 54.2°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 2.6°F lower than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's reading indicates a minor change compared to the average water temperature of the last two weeks, but the overall trend remains steady. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 58.3°F on 2024, while the historical minimum was 54.0°F on 2015.

latest data

last year

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the minimum recorded over the past years. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 55.0°F, with minimum temperature starting at 54.1°F, while the maximum might reach 55.8°F.

Daily water temperature in Incheon

Date	Current Year actual* / forecast**	last year	10 years average
Apr 26	52.7°F	54.7°F	52.5°F
Apr 27	53.3°F	55.4°F	53.0°F
Apr 28	53.8°F	55.9°F	53.3°F
Apr 29	53.6°F	55.4°F	53.2°F
Apr 30	54.4°F	57.2°F	53.3°F
May 1	56.1°F	56.0°F	54.2°F
May 2	54.6°F	57.5°F	54.4°F
May 3	54.7°F	57.3°F	54.8°F
May 4	54.5°F	59.0°F	55.0°F
May 5	54.4°F	58.9°F	55.5°F
May 6	53.4°F	58.7°F	55.5°F
May 7	53.7°F	58.6°F	56.0°F
May 8	53.7°F	58.4°F	56.0°F
May 9	53.9°F	57.6°F	56.4°F
May 10	54.2°F	58.3°F	56.8°F
May 11	54.1°F	58.2°F	56.7°F
May 12	54.2°F	58.3°F	56.8°F
May 13	54.9°F	59.0°F	57.5°F
May 14	55.0°F	59.1°F	57.6°F
May 15	55.5°F	60.6°F	58.0°F
May 16	55.5°F	61.4°F	58.1°F
May 17	55.8°F	61.0°F	58.4°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 Incheon by month

In Incheon, the months July through September offer comfortable swimming conditions, which amounts to 82 swimming days.

The warmest water in Incheon was recorded on August 18, 2024, reaching a 85.3°F. While the coldest temperature occurred on February 15, 2025, dipping to 33.7°F. The average readings by season are 41.2°F in Winter, 49.9°F in Spring, 74.3°F in Summer, and 66.9°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Bucheon-si	54.2°F	5mi
Ansan-si	52.8°F	11mi
Anyang-si	52.7°F	13mi
Goyang-si	55.7°F	16mi
Hwaseong-si	52.9°F	18mi

* current water temperature in this city

** straight line distance from Incheon