Swimming in South Korea in april 2025 Sea temperature by city in april

Do you want to go to the beach in South Korea in april 2025? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in april in South Korea by city and our opinion on the chances of enjoying pleasant sea conditions.

Sea temperature in South Korea in april 2025

Here, find the average sea temperature in South Korea in april in several coastal cities.

South in april

on average:

59°F

min: 56°F / max: 62°F

on average:

59°F

min: 55°F / max: 62°F

Namhae

on average:

57°F

min: 54°F / max: 61°F

Tongyeong

on average:

58°F

min: 56°F / max: 61°F

Ulsan

on average:

58°F

min: 54°F / max: 62°F

Yeosu

on average:

57°F

min: 53°F / max: 61°F

Northeast in april

on average:

54°F

min: 49°F / max: 58°F

on average:

53°F

min: 47°F / max: 58°F

North West in april

on average:

47°F

min: 41°F / max: 54°F

Ansan-si

on average:

47°F

min: 41°F / max: 54°F

Hwaseong-si

on average:

48°F

min: 41°F / max: 54°F

East in april

on average:

58°F

min: 52°F / max: 63°F

Gyeongju

on average:

58°F

min: 52°F / max: 63°F

Uljin

on average:

55°F

min: 51°F / max: 59°F

West in april

Gunsan

on average:

49°F

min: 43°F / max: 54°F

Where should you go swimming in South Korea in the month of april?

Swimming in South Korea in april is cold (in the best case scenario)

In april in South Korea swimming conditions vary by city. Details below:

Swimming in april in Gaigeturi is possible... with a wetsuit! Indeed, the water is cold at this time of year with an average temperature of 60°F (min: 56°F/max: 63°F).

Forget about swimming in Busan, Jeju Island (Jejudo), Gangneung, Incheon, Pohang, Sokcho, Gyeongju, Namhae, Tongyeong, Uljin, Ulsan, Yeosu, Ansan-si, Goseong, Gunsan, Haenam, Hwaseong-si, Jangan, Moppo, Muan, Oepo and Seogwipo in april! The water temperature is freezing, reaching as low as 56°F (and only 62°F at the best of times). Our advice: plan on sightseeing, and don't bring your beach towel!

Where to go swimming in South Korea in april: the map of sea temperatures

ideal swimming pleasant swimming cool swimming cold swimming freezing swimming

Water temperature and seasonal norms in april

Busan

April
Average sea temperature 59°F
Minimum sea temperature 56°F
Maximum sea temperature 62°F
Average outside temperature 58°F
Maximum outside temperature 61°F
Minimum outside temperature 54°F
Precipitation 3.7in
Number of days of precipitation 5 jour(s)
(16%)
Cloud cover 34%
Our opinion freezing swimming

More information on swimming in Busan in april

Jeju Island (Jejudo)

April
Average sea temperature 59°F
Minimum sea temperature 55°F
Maximum sea temperature 62°F
Average outside temperature 58°F
Maximum outside temperature 61°F
Minimum outside temperature 54°F
Precipitation 5.9in
Number of days of precipitation 5 jour(s)
(18%)
Cloud cover 39%
Our opinion freezing swimming

More information on swimming in Jeju Island (Jejudo) in april

Gangneung

April
Average sea temperature 54°F
Minimum sea temperature 49°F
Maximum sea temperature 58°F
Average outside temperature 52°F
Maximum outside temperature 59°F
Minimum outside temperature 45°F
Precipitation 3.9in
Number of days of precipitation 5 jour(s)
(16%)
Cloud cover 31%
Our opinion freezing swimming

More information on swimming in Gangneung in april

Incheon

April
Average sea temperature 47°F
Minimum sea temperature 41°F
Maximum sea temperature 54°F
Average outside temperature 56°F
Maximum outside temperature 61°F
Minimum outside temperature 50°F
Precipitation 3.5in
Number of days of precipitation 4 jour(s)
(13%)
Cloud cover 32%
Our opinion freezing swimming

More information on swimming in Incheon in april

Pohang

April
Average sea temperature 58°F
Minimum sea temperature 52°F
Maximum sea temperature 63°F
Average outside temperature 56°F
Maximum outside temperature 61°F
Minimum outside temperature 49°F
Precipitation 5.2in
Number of days of precipitation 5 jour(s)
(18%)
Cloud cover 33%
Our opinion freezing swimming

More information on swimming in Pohang in april

List of coastal cities in South Korea

Busan in aprilfreezing swimming
Jeju Island (Jejudo) in aprilfreezing swimming
Gangneung in aprilfreezing swimming
Incheon in aprilfreezing swimming
Pohang in aprilfreezing swimming
Sokcho in aprilfreezing swimming
Gyeongju in aprilfreezing swimming
Namhae in aprilfreezing swimming
Tongyeong in aprilfreezing swimming
Uljin in aprilfreezing swimming
Ulsan in aprilfreezing swimming
Yeosu in aprilfreezing swimming
Ansan-si in aprilfreezing swimming
Gaigeturi in aprilcold swimming
Goseong in aprilfreezing swimming
Gunsan in aprilfreezing swimming
Haenam in aprilfreezing swimming
Hwaseong-si in aprilfreezing swimming
Jangan in aprilfreezing swimming
Moppo in aprilfreezing swimming
Muan in aprilfreezing swimming
Oepo in aprilfreezing swimming
Seogwipo in aprilfreezing swimming
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