Jumunjin Surf Break

Lat Long: 37.88° N 128.83° E

Jumunjin Surf Forecast and Surf Report

Issued: 8 pm 30 Aug 2026 (local time)

Forecast update in  hr  min

Today's Jumunjin sea temperature is
26.3°C
2.7° 

Jumunjin surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Jumunjin surf forecast from 30 Aug 2026:

  • Best quality surf: Sunday 6 Sep, 6PM (local time) - 5ft (1.5m), 7s period, ENE swell with glassy winds.
  • Most powerful swell: Sunday 6 Sep, 3AM (local time) - 6ft (1.8m), 8s period, ENE swell with 356 kJ wave energy.
  • Next surfable swell (1★+): Monday 31 Aug, 3AM (local time) - 1.5ft (0.5m), 6s period with E swell.

Best Forecast Surf Conditions for Jumunjin this week:

The surf forecast for Jumunjin over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 31) at 3AM. The primary swell is predicted to be 0.4m and 7s period with a secondary swell of 0.4m and 6s. Another secondary swell of 0.5m and 6s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Jumunjin in the next 16 days are 1.8m 8s and forecast to arrive on Sunday (Sep 06) at 3AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Monday (Aug 31) at 9AM.

Wave TypeTime (KST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Mon 31st Aug)1.5ft (0.5m) 6s
Best Surf 6PM (Sun 6th Sep)5ft (1.5m) 7s
Most Powerful 3AM (Sun 6th Sep)6ft (1.8m) 8s

Table - best surf conditions forecast for Jumunjin over the next 16 days.


Short Range Forecast

Heavy rain (total 60mm), heaviest during Mon afternoon. Warm (max 24°C on Sun night, min 22°C on Mon morning). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 24mm), heaviest during Thu morning. Warm (max 23°C on Fri morning, min 21°C on Fri night). Wind will be generally light.

Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
0
1
0
0
1
1
0
1
0
0
0
0
0
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
NE
7
0.7
E
6
0.7
E
6
0.9
ESE
6
0.6
ENE
6
0.8
ENE
6
0.9
NE
6
0.8
NE
6
1
NE
7
0.8
NE
7
0.8
NE
7
0.8
NE
7
0.7
NE
8
1.6
NE
6
1.7
NE
7
1.5
NE
6
1.7
ENE
7
1.8
ENE
7
1.7
ENE
8
Wave Graph
Metric surfscale
Energy kJ
17
40
32
65
24
41
59
60
93
65
71
73
72
167
261
186
268
310
336
Wind (km/h)
5
SSE
10
SSE
5
SE
5
S
15
NNW
15
N
5
W
0
NNW
5
NNE
5
NW
10
N
10
N
10
N
20
NE
20
NE
20
NNE
20
NE
20
NE
15
ENE
Wind State
glassy
cross-off
cross
cross-off
cross
cross-on
glassy
glassy
on
glassy
cross-on
cross-on
cross-on
on
on
on
on
on
cross-on
High Tide
4:46AM0.25m
4:50PM0.27m
5:09AM0.26m
5:46PM0.25m
5:36AM0.27m
6:56PM0.22m
6:10AM0.28m
8:37PM0.21m
6:53AM0.29m
7:53AM0.30m
Low Tide
10:40PM0.08m
10:40AM0.11m
11:06PM0.11m
11:31AM0.10m
11:30PM0.14m
12:30PM0.09m
11:53PM0.17m
1:41PM0.08m
00:08AM0.19m
3:07PM0.08m
4:36PM0.07m
thunderstorm
mod rain
heavy rain
rain showers
light rain
light rain
light rain
light rain
light rain
light rain
light rain
cloud
mod rain
light rain
light rain
rain showers
rain showers
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:52
5:54
5:54
5:56
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
6:57
6:54
6:53
6:52
6:51
6:49
 mm
1
9
29
10
2
2
2
3
2
3
5
6
1
1
2
2
4
2
Temp °C
24
23
22
23
24
23
22
23
23
22
22
22
22
23
23
22
22
23
22
Feels °C
29
26
25
26
26
25
25
27
26
25
25
24
24
22
22
21
21
23
21
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Jumunjin Surf forecast

The above surf forecast table for Jumunjin provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Jumunjin can be found by selecting the local surf guide option on the grey menu. Our Jumunjin surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Jumunjin) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Jumunjin may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Jumunjin is 18 km (11 miles) from the city of Kangnung. If you plan a holiday in South Korea, look for hotels and other accommodation in Kangnung. Kangnung has rooms for a wide range of budgets as well as car hire and transport links.

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