38 Line Surf Break

Lat Long: 38.00° N 128.73° E

38 Line Surf Forecast and Surf Report

Issued: 8 pm 11 Sep 2026 (local time)

Forecast update in  hr  min

Today's 38 Line sea temperature is
24.1°C
1.6° 

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 11 Sep 2026:

  • Best quality surf: Tuesday 15 Sep, 12AM (local time) - 4.5ft (1.3m), 7s period, NE swell with glassy winds.
  • Most powerful swell: Monday 14 Sep, 9PM (local time) - 4.5ft (1.3m), 6s period, NE swell with 141 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 15 Sep, 12AM (local time) - 4.5ft (1.3m), 7s period with NE 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 Tuesday (Sep 15) at 12AM. The primary swell is predicted to be 1.3m and 7s period with a secondary swell of 0.5m and 5s. 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 1.3m 6s and forecast to arrive on Monday (Sep 14) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Monday (Sep 14) at 12PM.

Wave TypeTime (KST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Tue 15th Sep)4.5ft (1.3m) 7s
Best Surf12AM (Tue 15th Sep)4.5ft (1.3m) 7s
Most Powerful 9PM (Mon 14th Sep)4.5ft (1.3m) 6s

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


The Lowdown

Alright folks, Rusty here. Let's talk about what we've got on the table for 38 Line.

The next week and a half looks pretty quiet for the most part. We've got a big patch of very small, weak surf that's gonna test your patience, but there's some real promise waiting for us in the final few days of this outlook if you can hold on. The first realistic sign of a wave shows up from Tuesday the 15th, but honestly, it's nothing to write home about for a while.

From Saturday the 12th right through to Monday the 21st, it's a slog. The swell stays tiny, usually around 0.7 ft to 2 ft, with periods so short (4 to 6 seconds) they barely have any push. The combined swell energy is mostly in the single digits, sometimes struggling to get past 50 – that's weak (5 to 77). It's full of "poor surf" notes. There are a few moments with glassy conditions, like Tuesday morning the 15th and Wednesday morning the 16th, but there's just no power in the water. It's frustrating because the conditions are sometimes perfect, but the ocean is asleep. You'll be sitting out there on a longboard, that's about it. The crowd situation is never an issue at this size.

Things finally start to change on Tuesday the 22nd of September as a new pulse tries to fill in. The swell jumps to 5 ft to 6 ft from the NE, with period around 6-7 seconds and energy climbing to 162-344 (moderate). But – and it's a big but – the wind turns nasty. Strong cross-onshore breezes from the NE at 15 to 25 mph are going to tear that swell apart. It's messy, choppy, and looks more like a kite-surfing session than a clean paddle. Avoid that day.

Now, here's the standout you've been waiting for.

The real action kicks off on Thursday the 24th of September. We've got a solid, clean 4 ft easterly swell with an 8-second period, and the wind goes offshore from the West. That’s a gorgeous combination. The combined energy is a moderate 228. This is the day the rip bowl starts working properly – clean faces, light offshore texture, and just enough size to get a few proper turns in. This is the pick if you're an intermediate surfer looking for a fun session without the heavy crowd pressure (it's never busy there).

But if you're an expert who wants the heavy stuff, hold your horses for Friday the 25th of September. The models are calling for a big jump: 10 ft NNE swell with a bit more period (8-9 seconds) and combined energy readings of 1047 and 1324 – that's strong, very strong. The wind looks alright with a light offshore in the morning. But, and I mean this clearly, 10 ft is a lot of water for 38 Line. It's going to be a big, powerful, draining set that's really only going to work for experienced chargers who know the inside-outside game. Beginners and even some intermediates should sit this one out – it's too big and will be a washing machine.

We close the forecast on Sunday the 27th of September with another very good one. The swell drops to a more manageable 6 ft from the ENE, period of 8 seconds (energy 500 – moderate to strong), and it looks like it'll be glassy in the morning. That could be a perfect morning session.

To sum it up: the first week is a flat, glassy dud. The absolute best on offer for the average surfer is Thursday the 24th – that offshore, shoulder-high clean day. For the brave and skilled, Friday the 25th offers the biggest swell of the period, but treat it with respect. Keep an eye on the 27th too.

Stay patient, don't sell your board, and as always, check the conditions on the day.
Rusty

Short Range Forecast

Some drizzle, heaviest during Mon afternoon. Warm (max 23°C on Sun afternoon, min 19°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Some drizzle, heaviest during Mon night. Warm (max 22°C on Tue afternoon, min 19°C on Mon night). Wind will be generally light.

Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
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
1
1
0
0
0
0
0
0
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
ESE
5
0.3
E
5
0.3
ESE
5
0.3
SE
3
0.3
SE
4
0.3
ESE
6
0.3
ESE
5
0.3
ESE
5
0.7
N
4
1.3
NE
7
0.7
NE
6
0.5
NE
5
0.4
ESE
4
0.3
E
4
0.2
E
4
0.3
ESE
3
0.3
ESE
5
0.4
ESE
5
0.7
ESE
6
Wave Graph
Metric surfscale
Energy kJ
9
4
4
2
2
6
6
5
18
138
37
14
7
3
1
2
4
9
37
Wind (km/h)
10
SW
0
SSW
10
SE
5
SW
5
W
10
SSW
15
WSW
5
WNW
15
N
5
E
0
WSW
10
E
10
WSW
5
NW
10
NE
5
SW
0
NE
10
E
5
WSW
Wind State
cross-off
glassy
cross-on
glassy
glassy
cross-off
cross-off
off
cross
glassy
glassy
on
cross-off
glassy
cross-on
cross-off
glassy
on
off
High Tide
3:46AM0.25m
3:34PM0.29m
4:06AM0.26m
4:23PM0.27m
4:27AM0.27m
5:13PM0.25m
4:50AM0.28m
6:07PM0.23m
5:14AM0.28m
7:12PM0.21m
5:42AM0.29m
9:06PM0.20m
Low Tide
9:35PM0.05m
9:25AM0.11m
10:04PM0.08m
10:10AM0.09m
10:30PM0.11m
10:56AM0.08m
10:52PM0.14m
11:43AM0.08m
11:07PM0.16m
12:34PM0.09m
11:13PM0.19m
1:32PM0.10m
10:45PM0.20m
part cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
rain showers
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
6:05
6:05
6:05
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:39
6:38
6:37
6:36
6:34
6:32
6:30
 mm
1
1
Temp °C
20
22
22
21
22
23
22
23
23
21
21
22
20
21
21
20
21
22
21
Feels °C
19
21
21
22
22
22
20
23
23
21
22
23
21
21
22
22
24
24
23
  • Map Icons:
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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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