Water temperature in Haeju in July

Is it warm enough to swim in Haeju in July? Average water temperature in Haeju in July is 24°C and therefore suitable for comfortable swimming. The warmest sea in Haeju in July is 30.5°C, and the coldest is 19.6°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Haeju

Changes water temperature in Haeju in July 2025, 2024

To get an accurate forecast for the water temperature in Haeju for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Haeju, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of July.

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 July	21.1°C	24.2°C	19.6°C	24.7°C
2 July	21.2°C	24.2°C	19.7°C	24.2°C
3 July	21.4°C	23.1°C	20.1°C	25.3°C
4 July	21.5°C	22.6°C	20.5°C	25.2°C
5 July	21.7°C	22.9°C	20.4°C	25.1°C
6 July	21.7°C	22.5°C	20.8°C	25.9°C
7 July	22.7°C	22.7°C	20.7°C	25.4°C
8 July	24.5°C	25°C	21.2°C	25.2°C
9 July	26.5°C	24.8°C	21.3°C	26.5°C
10 July	26.9°C	24.2°C	21.3°C	26.9°C
11 July	25.4°C	25.7°C	20.7°C	26.4°C
12 July	26.2°C	25.8°C	20.8°C	26.2°C
13 July	24.6°C	25.8°C	20.8°C	25.8°C
14 July	24.4°C	25°C	21°C	26.3°C
15 July	24.4°C	25.6°C	21.1°C	26.2°C

Day	2025	2024	Min	Max
16 July	24.4°C	25.4°C	21.4°C	25.6°C
17 July	24.2°C	25.1°C	21.4°C	26.4°C
18 July	24.2°C	24.7°C	21.7°C	26.3°C
19 July	24.2°C	25.4°C	22.2°C	27.4°C
20 July	25.5°C	25.5°C	21.9°C	28.3°C
21 July	25.7°C	25.3°C	22°C	28.4°C
22 July	26°C	24.5°C	22.6°C	29°C
23 July	26.5°C	25.5°C	22.7°C	28.9°C
24 July	26.8°C	23.9°C	23°C	29.3°C
25 July	26.7°C	24.4°C	23.1°C	29.7°C
26 July	27.5°C	24.5°C	23.2°C	29.5°C
27 July	27.2°C	26.2°C	23.2°C	29.1°C
28 July	28.2°C	26.1°C	23.2°C	30.2°C
29 July	26.4°C	26°C	23.3°C	30.5°C
30 July	26.2°C	25.8°C	23.2°C	29.5°C
31 July	26.1°C	26.1°C	23.1°C	29.5°C

Average water temperature in Haeju in July over a decade

2016	2017	2018	2019	2020
24°C	24.9°C	24.7°C	25.2°C	24°C

2021	2022	2023	2024	2025
26.7°C	25.4°C	25.1°C	24.8°C	24.8°C

Haeju sea state in July

Chart comparing the height of waves in Haeju in July over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Haeju water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Temperature in neighboring cities

The nearest locations with the average water temperature in July. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Ganghwado	23.1°C	18.9°C	27.9°C
Nampo	24°C	19°C	30.1°C
Boryeong	23.9°C	19.6°C	28.5°C
Kunsan	24.4°C	20.3°C	27.9°C
Sokcho	22.8°C	19.4°C	27.3°C
Gangneung	22.6°C	19.3°C	27.2°C
Tonghae	22.5°C	18.1°C	27.6°C
Dachangshandao	21.9°C	18.6°C	26.3°C
Weihai	22.9°C	18.5°C	26.6°C
Sinan	22.8°C	19.1°C	27°C

Haeju photo gallery

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Our report for Haeju is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature