Warmest sea in South Korea in June

62 coastal locations in South Korea ranked by their typical June sea temperature. Region-wide average in June: 19.4°C. The top of the list is where to find the warmest swimming this month.

Warmest in June

Seogwipo

21.9°C June mean in South Korea

Regional June average

19.4°C

across all 62 coastal locations in South Korea

Vs annual mean

+2.3°C

above the year-round regional average

What the South Korea sea feels like in June

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

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 June fits in the year

June 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 June 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 June

Sorted by the typical June 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	June mean
1	Seogwipo Jeju-do	South Korea	21.9°C
2	Hwasun Jeju-do	South Korea	21.7°C
3	Jukdo Jeju-do	South Korea	21.3°C
4	Udo Sudo Jeju-do	South Korea	20.9°C
5	Jeju	South Korea	20.7°C
6	Jejudo	South Korea	20.7°C
7	Busan	South Korea	20.6°C
8	Wido Jeollabuk-do	South Korea	20.6°C
9	Sinhyeon	South Korea	20.6°C
10	Ulsan	South Korea	20.6°C
11	Gwanyang Jeollanam-do	South Korea	20.5°C
12	Yeosu Jeollanam-do	South Korea	20.5°C
13	Gadeokdo Busan	South Korea	20.4°C
14	Boryeong	South Korea	20.4°C
15	Kunsan	South Korea	20.4°C
16	Chinhae	South Korea	20.4°C
17	Masan	South Korea	20.4°C
18	Jisepo Gyeongsangnam-do	South Korea	20.3°C
19	Geoje	South Korea	20.3°C
20	Kyosai	South Korea	20.3°C
21	Chujado Jeju-do	South Korea	20.3°C
22	Gampo Gyeongsangbuk-do	South Korea	20.2°C
23	Yokjido Gyeongsangnam-do	South Korea	20.2°C
24	Sunchun	South Korea	20.1°C
25	Reisui	South Korea	20.1°C

Show 25 more ▸

26	Ulleungdo Gyeongsangbuk-do	South Korea	20.1°C
27	Ganggu Gyeongsangnam-do	South Korea	19.9°C
28	Eocheongdo Jeollabuk-do	South Korea	19.7°C
29	Geomundo Jeollanam-do	South Korea	19.7°C
30	Narodo Jeollanam-do	South Korea	19.6°C
31	Hoko	South Korea	19.6°C
32	Pohang	South Korea	19.6°C
33	Geumdangdo Jeollanam-do	South Korea	19.5°C
34	Soando Jeollanam-do	South Korea	19.4°C
35	Cheongsando Jeollanam-do	South Korea	19.4°C
36	Jukbyeon Gyeongsangbuk-do	South Korea	19.4°C
37	Wando Jeollanam-do	South Korea	19.4°C
38	Sokcho	South Korea	19.3°C
39	Gangneung	South Korea	19.3°C
40	Jumunjin Gangwon-do	South Korea	19.2°C
41	Tonghae	South Korea	19.2°C
42	Mukho Gangwon-do	South Korea	19.2°C
43	Moppo	South Korea	19.1°C
44	Sinan	South Korea	19.1°C
45	Yongpyong	South Korea	19.1°C
46	Daeheuksando Jeollanam-do	South Korea	18.6°C
47	Byeokpajin Jeollanam-do	South Korea	18.5°C
48	Eoranjin Jeollanam-do	South Korea	18.5°C
49	Modo Jeollanam-do	South Korea	18.5°C
50	Sangmado Jeollanam-do	South Korea	18.5°C

Coldest 10 in South Korea in June

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

#	Location	Country	June mean
1	Taesal Li	South Korea	16.6°C
2	Mohang-ri Chungcheongnam-do	South Korea	16.7°C
3	Baengnyeongdo Incheon	South Korea	16.8°C
4	Daecheongdo Incheon	South Korea	16.8°C
5	Hwaseong	South Korea	17.0°C
6	Incheon	South Korea	17.0°C
7	Ansan	South Korea	17.2°C
8	Goyang	South Korea	17.2°C
9	Seoul	South Korea	17.2°C
10	Anheung Chungcheongnam-do	South Korea	17.9°C