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 8.6°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.

47.5

°F

April 17, 01:14

Trend:

stable

Yesterday:

47.7°F

Tomorrow:

48.1°F

Sunrise:

05:57

Sunset:

19:10

Day Length:

13 h. 13 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 47.5°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 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 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 52.6°F on 2021, while the historical minimum was 46.5°F on 2015.

latest data

last year

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 49.0°F, with minimum temperature starting at 48.1°F, while the maximum might reach 49.7°F.

Daily water temperature in Incheon

Date	Current Year actual* / forecast**	last year	10 years average
Apr 3	45.5°F	49.1°F	46.5°F
Apr 4	45.8°F	50.0°F	47.0°F
Apr 5	45.9°F	49.9°F	47.1°F
Apr 6	46.8°F	49.5°F	47.0°F
Apr 7	46.8°F	48.8°F	47.0°F
Apr 8	47.4°F	48.5°F	47.4°F
Apr 9	47.8°F	50.0°F	47.6°F
Apr 10	48.0°F	51.2°F	47.9°F
Apr 11	48.6°F	50.6°F	47.9°F
Apr 12	48.6°F	51.2°F	48.4°F
Apr 13	48.1°F	51.3°F	48.5°F
Apr 14	48.0°F	52.2°F	49.1°F
Apr 15	48.9°F	51.7°F	49.2°F
Apr 16	47.7°F	51.6°F	49.9°F
Apr 17	47.5°F	50.9°F	49.6°F
Apr 18	48.1°F	52.4°F	50.2°F
Apr 19	48.4°F	53.9°F	50.6°F
Apr 20	48.8°F	53.6°F	51.0°F
Apr 21	49.0°F	53.3°F	51.2°F
Apr 22	49.5°F	53.2°F	51.6°F
Apr 23	49.7°F	54.2°F	51.9°F
Apr 24	49.6°F	53.8°F	51.7°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 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	46.8°F	5mi
Ansan-si	46.7°F	11mi
Anyang-si	46.6°F	13mi
Goyang-si	49.2°F	16mi
Hwaseong-si	46.7°F	18mi

* current water temperature in this city

** straight line distance from Incheon