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

81.2

°F

August 4, 22:28

Trend:

increasing

Yesterday:

80.0°F

Tomorrow:

81.6°F

Sunrise:

05:39

Sunset:

19:38

Day Length:

13 h. 59 min.

Ansan-si in August

Minimum:

39.8°F

Average:

41.3°F

Maximum:

44.6°F

Sea water temperature in Ansan-si today

As of now, in Ansan-si, the water temperature is 81.2°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 1.7°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable 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 81.9°F on 2025, while the historical minimum was 75.9°F on 2020.

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 81.9°F, with minimum temperature starting at 81.6°F, while the maximum might reach 82.2°F.

Daily water temperature in Ansan-si

Date Current Year

actual* / forecast**

last year 10 years average
Jul 21 78.2°F 77.5°F 76.3°F
Jul 22 77.7°F 79.1°F 76.7°F
Jul 23 77.5°F 78.5°F 76.7°F
Jul 24 76.0°F 79.6°F 76.7°F
Jul 25 77.5°F 79.7°F 77.1°F
Jul 26 78.1°F 81.4°F 77.6°F
Jul 27 79.5°F 82.2°F 78.1°F
Jul 28 78.4°F 80.9°F 78.0°F
Jul 29 78.0°F 81.2°F 78.6°F
Jul 30 78.6°F 80.7°F 78.8°F
Jul 31 78.5°F 80.4°F 79.0°F
Aug 1 80.8°F 80.4°F 79.5°F
Aug 2 80.8°F 82.2°F 79.6°F
Aug 3 80.0°F 82.4°F 79.6°F
Aug 4 81.2°F 81.9°F 79.4°F
Aug 5 81.6°F 80.9°F 79.9°F
Aug 6 81.7°F 81.2°F 80.0°F
Aug 7 82.1°F 80.3°F 80.3°F
Aug 8 82.1°F 80.3°F 80.4°F
Aug 9 82.2°F 80.3°F 80.5°F
Aug 10 81.8°F 80.0°F 80.1°F
Aug 11 82.0°F 80.2°F 80.3°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 81 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, 49.6°F in Spring, 74.1°F in Summer, and 67.0°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Anyang-si 80.6°F 7mi
Hwaseong-si 80.7°F 8mi
Incheon 83.5°F 11mi
Bucheon-si 83.9°F 12mi
Goyang-si 82.8°F 23mi

* current water temperature in this city

** straight line distance from Ansan-si