Warmest sea in South Korea in July

62 coastal locations in South Korea ranked by their typical July sea temperature. Region-wide average in July: 23.2°C. The top of the list is where to find the warmest swimming this month.

Warmest in July

Seogwipo

25.9°C July mean in South Korea

Regional July average

23.2°C

across all 62 coastal locations in South Korea

Vs annual mean

+6.0°C

above the year-round regional average

What the South Korea sea feels like in July

Water at this temperature is very pleasant to swim in. If you tend to wear a wetsuit when swimming, you might consider removing it now to avoid the body overheating.

South Korea monthly average 9.9°C to 26.2°C

Warmest month August 26.2°C
Coldest month February 9.9°C
Annual mean 17.1°C
Months above 20°C 4 of 12

Where July fits in the year

July sits inside the regional pattern shown on the left. Pick a different month to see how the ranking shifts.

All twelve South Korea month rankings:

South Korea sea temperature map (live)

The map shows today's latest reading at every South Korea location. The list below is based on the typical July mean, useful for trip planning weeks or months ahead.

Zoom in to see individual locations. Click a pin for water temperatures. View list →

°C -2 0 1 3 5 7 9 11 13 15 17 19 21 24 27 30 35

Top 50 warmest South Korea locations in July

Sorted by the typical July mean built from a decade of daily readings at each location. Click any place for its 30-day chart, monthly profile, and full 10-year history.

#	Location	Country	July mean
1	Seogwipo Jeju-do	South Korea	25.9°C
2	Hwasun Jeju-do	South Korea	25.8°C
3	Jukdo Jeju-do	South Korea	25.6°C
4	Jeju	South Korea	25.1°C
5	Jejudo	South Korea	25.1°C
6	Udo Sudo Jeju-do	South Korea	25.0°C
7	Boryeong	South Korea	24.6°C
8	Kunsan	South Korea	24.6°C
9	Wido Jeollabuk-do	South Korea	24.4°C
10	Chujado Jeju-do	South Korea	24.4°C
11	Busan	South Korea	24.1°C
12	Eocheongdo Jeollabuk-do	South Korea	24.0°C
13	Sinhyeon	South Korea	23.9°C
14	Ulsan	South Korea	23.9°C
15	Gadeokdo Busan	South Korea	23.8°C
16	Chinhae	South Korea	23.8°C
17	Masan	South Korea	23.8°C
18	Geoje	South Korea	23.8°C
19	Kyosai	South Korea	23.8°C
20	Jisepo Gyeongsangnam-do	South Korea	23.7°C
21	Gwanyang Jeollanam-do	South Korea	23.7°C
22	Yeosu Jeollanam-do	South Korea	23.7°C
23	Ulleungdo Gyeongsangbuk-do	South Korea	23.7°C
24	Reisui	South Korea	23.6°C
25	Yokjido Gyeongsangnam-do	South Korea	23.5°C

Show 25 more ▸

26	Jumunjin Gangwon-do	South Korea	23.5°C
27	Sunchun	South Korea	23.5°C
28	Sokcho	South Korea	23.5°C
29	Gangneung	South Korea	23.4°C
30	Mukho Gangwon-do	South Korea	23.4°C
31	Soando Jeollanam-do	South Korea	23.4°C
32	Geomundo Jeollanam-do	South Korea	23.3°C
33	Yongpyong	South Korea	23.3°C
34	Cheongsando Jeollanam-do	South Korea	23.3°C
35	Tonghae	South Korea	23.3°C
36	Wando Jeollanam-do	South Korea	23.3°C
37	Gampo Gyeongsangbuk-do	South Korea	23.2°C
38	Jukbyeon Gyeongsangbuk-do	South Korea	23.1°C
39	Daeheuksando Jeollanam-do	South Korea	23.0°C
40	Narodo Jeollanam-do	South Korea	23.0°C
41	Geumdangdo Jeollanam-do	South Korea	22.9°C
42	Moppo	South Korea	22.8°C
43	Sinan	South Korea	22.8°C
44	Ganggu Gyeongsangnam-do	South Korea	22.7°C
45	Daeyeonpyeongdo Incheon	South Korea	22.5°C
46	Anheung Chungcheongnam-do	South Korea	22.5°C
47	Hoko	South Korea	22.4°C
48	Pohang	South Korea	22.4°C
49	Byeokpajin Jeollanam-do	South Korea	21.9°C
50	Eoranjin Jeollanam-do	South Korea	21.9°C

Coldest 10 in South Korea in July

Same data the other way. Helpful if you want to know which South Korea coasts to avoid for swimming in July.

#	Location	Country	July mean
1	Taesal Li	South Korea	20.6°C
2	Hwaseong	South Korea	20.6°C
3	Incheon	South Korea	20.6°C
4	Ansan	South Korea	20.9°C
5	Goyang	South Korea	20.9°C
6	Seoul	South Korea	20.9°C
7	Mohang-ri Chungcheongnam-do	South Korea	21.5°C
8	Baengnyeongdo Incheon	South Korea	21.7°C
9	Daecheongdo Incheon	South Korea	21.7°C
10	Hataedo Jeollanam-do	South Korea	21.9°C