38 Line Surf Break

Lat Long: 38.00° N 128.73° E

38 Line Surf Forecast and Surf Report

Issued: 2 am 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's 38 Line sea temperature is
23.6°C
1.2° 

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 12 Sep 2026:

  • Best quality surf: Saturday 19 Sep, 9PM (local time) - 5ft (1.5m), 8s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Saturday 19 Sep, 9AM (local time) - 5.5ft (1.7m), 7s period, ENE swell with 319 kJ wave energy.
  • Next surfable swell (1★+): Monday 14 Sep, 9PM (local time) - 4.5ft (1.4m), 6s 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 Monday (Sep 14) at 9PM. The primary swell is predicted to be 1.4m and 6s period. 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 1.7m 7s and forecast to arrive on Saturday (Sep 19) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Monday (Sep 14) at 12PM.

Wave TypeTime (KST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Mon 14th Sep)4.5ft (1.4m) 6s
Best Surf 9PM (Sat 19th Sep)5ft (1.5m) 8s
Most Powerful 9AM (Sat 19th Sep)5.5ft (1.7m) 7s

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


The Lowdown

Righto, let’s have a look what’s on the cards for 38 Line over the next couple of weeks.

Straight off the bat, I gotta be honest with you – the start of this run is a bit of a flat patch. We’re looking at a few days of tiny, messy leftovers with poor conditions. From Sunday the 13th through to Monday morning the 14th, we’re talking ankle-snappers around 1 foot from the ESE with a short, weak period of just 4 seconds. The combined energy is next to nothing (4). About the only positive is a bit of glassy, offshore wind making the surface tidy, but there’s just no push.

Things stay pretty ordinary until late in the first week. The water temp is sitting at 75°, which is a touch warmer than usual for this time of year. That’s nice if you’re having a paddle, but it doesn’t help the waves.

There’s a small bump on Tuesday morning the 15th with 3 feet from the ENE and a 6-second period. It’s glassy again, but the energy is still weak (80). That’s the best of a bad bunch for a few days, but it’s nothing to write home about.

Now, here’s where it gets interesting. The real standout window arrives on Saturday the 19th of September. We see a jump in size to 6 feet from the ENE, with a period creeping up to 7 seconds. The combined energy shoots up to (558) – that’s a proper kick. It’s a cross-onshore wind though, so the surface is going to be choppy and a bit bumpy. This one’s marginal, but if you’re a stronger paddler, the morning session will have some grunt. It’s getting into intermediate territory at 6 feet.

The best bet of the whole period, without a doubt, is Sunday morning the 20th of September. We’ve got 5 feet of groundswell from the NE with an 8-second period, and the wind is a light cross-offshore breeze. That’s clean. The energy is strong (268), and the word is “expect good surf conditions.” This is the one to circle. Crowds at 38 Line are never an issue, so you should have plenty of room.

After that, it fades back down. Monday the 21st has a glassy 3 feet, but it’s ordinary. Then we hit a bit of a windy, choppy stretch mid-week.

Looking further out, there’s another pulse on Saturday the 26th of September. The morning has 6 feet from the NE with an 8-second period and glassy conditions – dead calm wind. That’s a solid, clean swell and the energy is big (489). This one is pushing into expert territory though, especially if it’s a bit dumpy. Long-period groundswell like this can break straight on a beach break, so watch for that. It’s a promising call for the second week, but still a week and a half away, so keep an eye on it.

Summing it up: The first week is mostly weak and flat. The standout is Sunday morning, 20th September – that’s your best bet for clean, fun waves without the crowds. The Saturday the 26th has potential for something bigger, but it’s a long-range call.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 23°C on Sun afternoon, min 18°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 22°C on Thu afternoon, min 19°C on Wed night). Wind will be generally light.

Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
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
1
1
0
0
0
0
0
0
0
1
0
0
1
1
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
ESE
4
0.2
ESE
4
0.3
ESE
5
0.3
ESE
5
1.1
NNE
5
1.3
NE
7
0.9
ENE
6
0.5
NE
6
0.5
E
5
0.4
ENE
5
0.3
E
4
0.3
ESE
4
0.3
ESE
4
0.5
E
6
0.9
ESE
7
1.2
E
7
1.3
E
7
1.5
E
7
1.7
ENE
7
1.6
ENE
8
1.4
ENE
8
Wave Graph
Metric surfscale
Energy kJ
3
2
6
5
69
155
61
15
11
7
4
3
4
17
73
126
159
210
319
266
220
Wind (km/h)
5
W
5
SW
15
WSW
10
W
15
N
5
WNW
5
SSE
15
ESE
10
WSW
5
NW
5
NE
5
WSW
5
NW
10
E
5
W
10
NE
15
NE
10
NNE
15
NNE
15
NNE
10
WNW
Wind State
glassy
cross-off
off
off
cross
glassy
glassy
cross-on
off
glassy
cross-on
cross-off
glassy
on
glassy
cross-on
cross-on
cross-on
cross-on
cross
cross-off
High Tide
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
6:15AM0.28m
7:01AM0.28m
Low Tide
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
2:46PM0.11m
4:10PM0.11m
cloud
cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
light rain
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:05
6:05
6:05
6:07
6:07
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:36
6:34
6:32
6:30
6:29
6:28
 mm
2
Temp °C
22
23
21
23
22
21
21
22
20
21
21
20
21
22
21
22
22
21
21
21
19
Feels °C
24
23
20
23
20
23
21
21
20
21
22
21
23
22
23
21
22
22
20
20
19
  • 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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