What is the current water temperature in Incheon?

As of now, in Incheon, the water temperature is 27.75°C. It's safe to say that the water is comfortably warm for various water-related activities.

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.

82.0

°F

August 30, 04:23

Trend:

decreasing

Yesterday:

82.1°F

Tomorrow:

81.7°F

Sunrise:

06:01

Sunset:

19:06

Day Length:

13 h. 5 min.

Incheon in September

Minimum:

38.5°F

Average:

40.6°F

Maximum:

44.3°F

Sea water temperature in Incheon today

As of now, in Incheon, the water temperature is 82.0°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 4.1°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 fall 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 maximum temperature for this date. The maximum temperature recorded for this date was 81.8°F on 2024, while the historical minimum was 76.1°F on 2021.

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 shows a gradual cooling trend. The average temperature is expected to be 81.5°F, the minimum temperature may reach 81.3°F, and the maximum might stay at 81.8°F.

Daily water temperature in Incheon

Date	Current Year actual* / forecast**	last year	10 years average
Aug 16	80.5°F	84.7°F	80.6°F
Aug 17	81.0°F	84.2°F	80.4°F
Aug 18	82.3°F	85.3°F	80.6°F
Aug 19	81.7°F	84.0°F	80.3°F
Aug 20	81.6°F	84.5°F	80.2°F
Aug 21	82.0°F	84.0°F	80.2°F
Aug 22	82.0°F	83.8°F	80.2°F
Aug 23	82.5°F	82.6°F	79.9°F
Aug 24	82.7°F	82.2°F	79.7°F
Aug 25	83.4°F	82.3°F	79.7°F
Aug 26	83.2°F	83.0°F	79.3°F
Aug 27	81.9°F	82.2°F	78.7°F
Aug 28	81.2°F	81.1°F	78.2°F
Aug 29	82.1°F	81.7°F	78.0°F
Aug 30	82.0°F	81.8°F	77.9°F
Aug 31	81.7°F	82.3°F	77.6°F
Sep 1	81.8°F	82.6°F	77.7°F
Sep 2	81.4°F	82.1°F	77.3°F
Sep 3	81.5°F	81.8°F	77.5°F
Sep 4	81.5°F	81.2°F	77.4°F
Sep 5	81.4°F	81.3°F	77.3°F
Sep 6	81.3°F	80.7°F	77.2°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 83 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, 74.4°F in Summer, and 66.9°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Bucheon-si	81.9°F	5mi
Ansan-si	80.6°F	11mi
Anyang-si	80.2°F	13mi
Goyang-si	80.0°F	16mi
Hwaseong-si	80.3°F	18mi

* current water temperature in this city

** straight line distance from Incheon