38 Line Surf Break

Lat Long: 38.00° N 128.73° E

38 Line Surf Forecast and Surf Report

Issued: 2 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's 38 Line sea temperature is
24.9° C
0.6° 

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


38 Line surf forecast from 18 Aug 2026:

  • Best quality surf: Monday 24 Aug, 3AM (local time) - 5ft (1.5m), 7s period, SSE swell with offshore winds.
  • Most powerful swell: Monday 24 Aug, 3AM (local time) - 5ft (1.5m), 7s period, SSE swell with 199 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 9PM (local time) - 4.5ft (1.3m), 5s period with SE swell.

Best Forecast Surf Conditions for 38 Line this week:

The surf forecast for 38 Line over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 9PM. The primary swell is predicted to be 1.3m and 5s period with a secondary swell of 0.1m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at 38 Line in the next 16 days are 1.5m 7s and forecast to arrive on Monday (Aug 24) at 3AM. Winds are predicted to be offshore at the time the swell arrives.

Wave TypeTime (KST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sun 23rd Aug)4.5ft (1.3m) 5s
Best Surf 3AM (Mon 24th Aug)5ft (1.5m) 7s
Most Powerful 3AM (Mon 24th Aug)5ft (1.5m) 7s

Table - best surf conditions forecast for 38 Line over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s be straight with you – this stretch at 38 Line is one of those quiet spells where you’re better off checking the tide pools than paddling out. The whole 16-day window is a tough watch, with nothing but flat or tiny, weak wash for the first week and a half.

Tuesday 18th to Sunday 23rd August is a write-off. We’re talking ankle-snappers from 0.7 ft to 2 ft, mostly short period junk. The combined energy is barely a whisper – the best of that run is a paltry 23 on Sunday afternoon. The winds are glassy at times, but there’s simply no swell to work with. It’s a blank run, and honestly, for this area, when it goes quiet, it can stay that way for a bit. Nothing to get excited about.

Then we get a tiny flicker Monday 24th August. The morning shows a slight bump to 3 ft from the SSE, with a period of 7 seconds and a combined energy of 142 – that’s weak but at least it’s something. The wind is a clean cross-off from the WSW, so the surface will be okay. But it’s still just a knee-high slosh. Not really worth the wetsuit, but if you’re desperate, you could get a few close-out crumbles.

Tuesday 25th through to Saturday 29th is flat again. The odd 0.3 ft to 1 ft. Forget it. Then on Saturday 29th afternoon, things change. The swell jumps to 5 ft from the NE with a period of 6 seconds and a combined energy of 172. The wind is onshore from the east at 9 mph, which is going to chop it up. It’s not clean, but it’s the first sign of real size.

Sunday 30th August keeps the 4 ft NE swell going, but the wind is cross-onshore from the NE and NNE, making it a bit of a mess. The energy is around 94-100, so it’s got some push, but it’s not what you’d call quality.

Monday 31st August is a similar story with 3 ft from the NNE, but a moderate cross-shore wind from the north at 12 mph will build a chop. The energy sits at 115 in the afternoon.

Tuesday 1st September is the big one, but it’s a wild one. The swell hits 8 ft in the morning and 10 ft in the afternoon from the NNE, with a period of 8 seconds. The combined energy is 915 in the morning and a massive 1671 in the afternoon. That is serious, heavy water. The problem is the wind shifts from cross-on to a full-on cross-onshore gale from the ENE at 22 mph. This is a beast for experts only – it’s going to be a washing machine, better suited for kites than paddles, honestly.

Now, here’s the one standout. The best on offer is Wednesday 2nd September. After the storm passes, the wind swings offshore from the west at 6 mph, and that makes all the difference. The swell is still a solid 7 ft from the NE with an 8-second period, and combined energy of 650. That’s a proper, powerful swell with offshore wind. It’s going to be big and clean, but that 7 ft size is expert territory. It’ll wall up, and with the offshore wind, the face will be smooth. If you’re skilled and hungry, that’s your window. The afternoon gets a bit messy with a cross-onshore breeze, so hit the morning.

So, bottom line: you’ve got a long, flat wait. The only real chance for a decent session is that Wednesday morning, 2nd September, at 38 Line. It’s a long way out, but the signs are promising. Stay patient.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 30°C on Tue afternoon, min 23°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 11mm), heaviest on Fri morning. Warm (max 27°C on Sun afternoon, min 23°C on Fri morning). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
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
SSE
6
0.5
E
5
0.4
SE
7
0.4
SE
6
0.2
ESE
5
0.2
ESE
5
0.2
SSE
5
0.2
ESE
4
0.2
E
4
0.2
NNE
5
0.3
NE
4
0.2
SSE
3
0.1
NE
11
0.3
NE
9
0.3
NE
8
0.7
ESE
4
1.3
SE
6
0.9
SSE
7
0.6
SE
6
0.5
SE
8
Wave Graph
Metric surfscale
Energy kJ
13
13
13
8
2
2
3
1
1
3
2
1
0
5
12
10
16
116
78
33
31
Wind (km/h)
5
S
10
SSW
15
WSW
10
SW
5
NE
10
W
5
NW
0
NNW
5
WSW
10
S
10
SSE
10
SSW
5
NNW
5
NW
5
S
5
S
5
S
10
WSW
10
WSW
5
NE
10
SW
Wind State
glassy
cross-off
cross-off
cross-off
glassy
off
glassy
glassy
glassy
cross
cross-on
cross-off
cross-off
glassy
glassy
glassy
cross
cross-off
cross-off
cross-on
cross-off
High Tide
7:10PM0.21m
6:53AM0.27m
8:43PM0.19m
7:28AM0.27m
8:17AM0.28m
9:15AM0.28m
10:25AM0.29m
3:19AM0.23m
Low Tide
1:10PM0.12m
00:22AM0.16m
2:22PM0.12m
00:18AM0.18m
3:45PM0.11m
5:04PM0.11m
6:08PM0.10m
6:57PM0.08m
5:32AM0.23m
7:38PM0.07m
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
part cloud
light rain
light rain
light rain
part cloud
cloud
light rain
cloud
cloud
part cloud
part cloud
light rain
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
5:41
5:43
5:43
5:45
5:46
5:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
7:14
7:13
7:10
7:09
7:07
7:07
 mm
3
3
3
2
2
Temp °C
27
30
27
30
30
27
25
24
24
23
24
24
24
24
24
26
27
27
27
26
25
Feels °C
30
32
28
33
33
30
29
28
28
26
27
27
28
28
28
29
31
30
30
29
28
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  • 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 38 Line Surf forecast

The above surf forecast table for 38 Line provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at 38 Line can be found by selecting the local surf guide option on the grey menu. Our 38 Line 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 (38 Line) 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 38 Line 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.

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

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