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 9.66°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.

South Korea > Incheon

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.

49.4

°F

April 4, 01:32

Trend:

increasing

Yesterday:

49.0°F

Tomorrow:

49.6°F

Sunrise:

06:16

Sunset:

18:58

Day Length:

12 h. 42 min.

Incheon in April

Minimum:

39.1°F

Average:

41.4°F

Maximum:

44.2°F

Sea water temperature in Incheon today

As of now, in Incheon, the water temperature is 49.4°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 2.2°F higher 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 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 50.0°F on 2024, while the historical minimum was 42.7°F on 2018.

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 maximum recorded over the past years. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 49.9°F, with minimum temperature starting at 49.5°F, while the maximum might reach 50.4°F.

Daily water temperature in Incheon

Date	Current Year actual* / forecast**	last year	10 years average
Mar 21	42.5°F	42.2°F	43.1°F
Mar 22	42.1°F	42.8°F	43.3°F
Mar 23	43.4°F	43.0°F	43.2°F
Mar 24	45.2°F	43.5°F	43.7°F
Mar 25	45.5°F	44.1°F	44.1°F
Mar 26	46.3°F	44.4°F	44.4°F
Mar 27	45.4°F	45.8°F	44.7°F
Mar 28	45.3°F	45.8°F	44.7°F
Mar 29	44.4°F	45.0°F	44.6°F
Mar 30	46.0°F	45.0°F	44.8°F
Mar 31	45.8°F	44.9°F	44.9°F
Apr 1	47.9°F	44.9°F	46.1°F
Apr 2	47.3°F	45.4°F	46.4°F
Apr 3	49.0°F	45.5°F	46.8°F
Apr 4	49.4°F	45.8°F	47.2°F
Apr 5	49.6°F	45.9°F	47.4°F
Apr 6	49.5°F	46.8°F	47.4°F
Apr 7	49.6°F	46.8°F	47.4°F
Apr 8	49.9°F	47.4°F	47.8°F
Apr 9	50.2°F	47.8°F	48.0°F
Apr 10	50.4°F	48.0°F	48.2°F
Apr 11	50.3°F	48.6°F	48.2°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 84 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 5, 2026, dipping to 33.1°F. The average readings by season are 41.1°F in Winter, 50.1°F in Spring, 74.6°F in Summer, and 67.0°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Bucheon-si	49.7°F	5mi
Ansan-si	48.7°F	11mi
Anyang-si	48.5°F	13mi
Goyang-si	49.2°F	16mi
Hwaseong-si	47.9°F	18mi

* current water temperature in this city

** straight line distance from Incheon