Jumunjin surfForecast / South Korea / South Korea

information circle48hr Weather and Surf, issued 2 am Wednesday 20 May 2026 KST
Forecast update in hr  min  s Forecast update imminent
Jumunjin surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Jumunjin sea temperature is
16.3° C
(Which is 1.6°C warmer than normal for this time of year)

How big are the waves at Jumunjin today?

The current surf forecast for Jumunjin at 6AM is: 0.3m 4s primary swell from a North direction and 0.1m 5s secondary swell from a Southeast direction (forecast issued at 02:00am May 20). The wind direction is predicted to be glassy.

Time (KST) & DateWave HeightWave Period
Morning (20 May)1ft (0.3m)4s
Afternoon (20 May)1ft (0.3m)4s
Evening (20 May)3.5ft (1.0m)4s

Table - waves today at Jumunjin. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 135mm), heaviest during Wed night. Very mild (max 17°C on Wed night, min 12°C on Fri night). Wind will be generally light.

Wednesday
20
Thursday
21
Friday
22
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.1
NE
5
0.2
N
3
0.3
N
4
0.3
N
4
0.3
N
4
0.3
NNE
4
0.6
ENE
3
1
ENE
4
1.1
E
5
1.3
ENE
6
1.7
E
6
2
E
7
2.3
ENE
7
2.3
ENE
8
1.8
E
8
3
ENE
8
2.5
ENE
8
2.4
ENE
8
2.2
ENE
8
2
ENE
8
2
ENE
8
1.7
ENE
8
1.7
ENE
8
1.5
ENE
8
Wave Graph
Metric surfscale
Energy kJ
1
1
2
2
3
3
7
35
61
106
217
360
503
588
408
1030
949
782
678
541
499
373
310
256
Wind (km/h)
5
WSW
5
WSW
5
NNE
5
SSW
5
SSE
10
ENE
15
ENE
20
E
20
E
15
ENE
20
ENE
25
ENE
20
NE
25
NNE
30
NNE
25
NNE
20
N
20
N
15
NNW
20
NNW
15
N
15
N
10
N
5
NW
cross-off
glassy
glassy
glassy
cross-off
on
cross-on
cross-on
cross-on
cross-on
on
cross-on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
High Tide
7:32AM0.24m
4:38PM0.35m
8:50AM0.23m
5:32PM0.33m
9:58AM0.23m
6:33PM0.30m
Low Tide
11:49PM-0.01m
10:21AM0.22m
00:47AM0.01m
11:08AM0.22m
1:48AM0.03m
12:21PM0.22m
cloud
cloud
light rain
light rain
mod rain
heavy rain
heavy rain
heavy rain
heavy rain
heavy rain
mod rain
mod rain
mod rain
mod rain
light rain
light rain
light rain
part cloud
part cloud
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:11
5:09
5:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:30
7:31
7:32
1
5
9
13
21
23
15
11
6
10
6
6
4
4
2
Temp °C
20
21
17
15
15
14
15
16
16
16
17
16
16
16
15
15
15
14
14
15
16
16
16
14
19
20
17
15
15
13
13
14
14
15
16
13
14
13
11
12
13
11
12
12
13
14
15
13
Swell 1
Height (m)
Direction
Period (s)
0.2
NNW
3
0.1
SE
5
0.3
N
4
0.3
N
4
0.3
N
4
0.3
NNE
4
0.1
NE
9
0.1
NE
9
1.4
E
7
1.7
E
7
1.8
E
8
2.5
ENE
8
2.4
ENE
8
2.2
ENE
8
2
ENE
8
2
ENE
8
1.7
ENE
8
1.7
ENE
8
1.5
ENE
8
Energy kJ
1
1
2
2
3
3
3
3
187
311
408
949
782
678
541
499
373
310
256
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
4
0.1
NE
5
0.1
SE
5
0.1
SE
4
0.1
SE
4
0.1
SE
4
0.1
S
7
0.1
S
7
Energy kJ
1
1
1
1
1
1
1
1
Swell 3
Height (m)
Direction
Period (s)
0.1
NE
5
0.1
NE
5
0.1
NE
5
0.1
NE
5
0.1
NE
4
Energy kJ
1
1
1
1
1
Wind waves
Height (m)
Direction
Period (s)
0.2
N
3
0.3
NNW
4
0.3
N
4
0.6
ENE
3
1
ENE
4
1.1
E
5
1.3
ENE
6
1.7
E
6
2
E
7
2.3
ENE
7
2.3
ENE
8
1.9
NE
7
3
ENE
8
1.1
N
6
1
N
6
0.9
N
6
0.9
N
5
0.7
N
6
0.6
N
6
0.4
NNW
6
Energy kJ
1
2
3
7
35
61
106
217
360
503
588
365
1030
74
68
56
34
31
23
10
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
2
2
2
2
2
2
2
2
2
1
1
1
3
2
1
3
1
1
1
2
2
Distance (km)
653
653
653
653
653
653
653
679
653
653
653
690
304
691
304
633
560
498
16
633
568
691
10
10
Best forecast wave conditions in South Korea
Rating
(10 max)
1
1
2
2
3
2
2
Best forecast wave conditions in South Korea
Rating
(10 max)
1
1
2
2
3
2
2
Header Global
Rating
(10 max)
4
4
4
5
5
5
4
4
4
5
5
4
4
5
5
4
4
4
4
5
5
5
7
8
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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