All data are in degrees Fahrenheit

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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

33.7

°F

February 16, 10:24

Trend:

increasing

Yesterday:

33.4°F

Tomorrow:

33.7°F

Sunrise:

07:22

Sunset:

18:13

Day Length:

10 h. 51 min.

Ansan-si in February

Minimum:

41.0°F

Average:

42.8°F

Maximum:

45.0°F

Sea water temperature in Ansan-si today

As of now, in Ansan-si, the water temperature is 33.7°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 4.0°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 water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 40.2°F on 2020, while the historical minimum was 34.7°F on 2025.

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 34.2°F, with minimum temperature starting at 33.7°F, while the maximum might reach 34.6°F.

Daily water temperature in Ansan-si

Date Current Year

actual* / forecast**

last year 10 years average
Feb 2 35.2°F 37.1°F 37.8°F
Feb 3 33.5°F 37.4°F 37.8°F
Feb 4 34.0°F 37.7°F 37.9°F
Feb 5 32.8°F 37.9°F 37.7°F
Feb 6 33.3°F 37.5°F 37.7°F
Feb 7 33.3°F 37.5°F 37.5°F
Feb 8 33.0°F 37.4°F 37.5°F
Feb 9 33.2°F 36.8°F 37.3°F
Feb 10 33.6°F 35.9°F 37.3°F
Feb 11 34.1°F 35.3°F 37.1°F
Feb 12 34.0°F 35.5°F 37.2°F
Feb 13 35.6°F 35.9°F 37.2°F
Feb 14 35.9°F 34.8°F 37.4°F
Feb 15 33.4°F 34.1°F 37.5°F
Feb 16 33.7°F 34.7°F 37.7°F
Feb 17 33.7°F 34.0°F 37.7°F
Feb 18 33.9°F 35.2°F 37.9°F
Feb 19 34.2°F 35.5°F 38.2°F
Feb 20 34.2°F 36.0°F 38.2°F
Feb 21 34.1°F 36.5°F 38.1°F
Feb 22 34.6°F 36.8°F 38.6°F
Feb 23 34.6°F 36.8°F 38.7°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 Ansan-si by month

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 5, 2026, dipping to 32.8°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 33.4°F 7mi
Hwaseong-si 33.9°F 8mi
Incheon 36.3°F 11mi
Bucheon-si 36.9°F 12mi
Goyang-si 35.5°F 23mi

* current water temperature in this city

** straight line distance from Ansan-si