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South Korea > Ansan-si

Water temperature in Ansan-si

Detailed information about the current water temperature in Ansan-si. 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 Ansan-si now

40.8

°F

March 11, 00:26

Trend:

increasing

Yesterday:

40.0°F

Tomorrow:

41.2°F

Sunrise:

06:51

Sunset:

18:36

Day Length:

11 h. 45 min.

Ansan-si in March

Minimum:

41.0°F

Average:

42.6°F

Maximum:

45.2°F

Sea water temperature in Ansan-si today

As of now, in Ansan-si, the water temperature is 40.8°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 0.8°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 also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 44.2°F on 2020, while the historical minimum was 37.3°F on 2025.

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 histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 42.0°F, with minimum temperature starting at 41.2°F, while the maximum might reach 42.6°F.

Daily water temperature in Ansan-si

Date Current Year

actual* / forecast**

 last year 10 years average
Feb 25 39.4°F 36.1°F 38.4°F
Feb 26 38.9°F 35.6°F 38.2°F
Feb 27 38.7°F 35.6°F 38.0°F
Feb 28 36.1°F 35.6°F 38.0°F
Mar 1 36.4°F 36.2°F 38.1°F
Mar 2 37.5°F 36.5°F 38.4°F
Mar 3 38.7°F 37.5°F 38.8°F
Mar 4 37.9°F 37.8°F 38.8°F
Mar 5 39.2°F 38.1°F 39.2°F
Mar 6 39.3°F 38.4°F 39.3°F
Mar 7 40.2°F 38.7°F 39.4°F
Mar 8 40.6°F 38.9°F 39.4°F
Mar 9 40.7°F 37.7°F 39.5°F
Mar 10 40.0°F 35.5°F 39.2°F
Mar 11 40.8°F 37.3°F 40.0°F
Mar 12 41.2°F 37.9°F 40.4°F
Mar 13 41.6°F 38.3°F 40.8°F
Mar 14 42.1°F 40.1°F 41.3°F
Mar 15 41.9°F 40.4°F 41.1°F
Mar 16 42.1°F 41.1°F 41.3°F
Mar 17 42.3°F 41.0°F 41.5°F
Mar 18 42.6°F 41.3°F 41.8°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 Ansan-si by month

January

February

March

April

May

June

July

August

September

October

November

December

In Ansan-si, the months July through September offer comfortable swimming conditions, which amounts to 82 swimming days.
The warmest water in Ansan-si was recorded on August 16, 2024, reaching a 84.2°F. While the coldest temperature occurred on February 16, 2026, dipping to 32.3°F. The average readings by season are 41.9°F in Winter, 49.5°F in Spring, 74.0°F in Summer, and 67.0°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Anyang-si 40.7°F 7mi
Hwaseong-si 40.6°F 8mi
Incheon 40.2°F 11mi
Bucheon-si 40.1°F 12mi
Goyang-si 41.8°F 23mi

* current water temperature in this city

** straight line distance from Ansan-si