Surf Forecasts:
38 Line surf forecast from 23 Aug 2026:
- Best quality surf: Thursday 27 Aug, 9PM (local time) - 3.5ft (1.1m), 6s period, NE swell with cross-offshore winds.
- Most powerful swell: Thursday 27 Aug, 9PM (local time) - 3.5ft (1.1m), 6s period, NE swell with 80 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 9PM (local time) - 3.5ft (1.1m), 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 Thursday (Aug 27) at 9PM. The primary swell is predicted to be 1.1m and 6s period with a secondary swell of 0.1m and 4s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at 38 Line in the next 16 days are 1.1m 6s and forecast to arrive on Thursday (Aug 27) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Thursday (Aug 27) at 12PM.
| Wave Type | Time (KST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 27th Aug) | 3.5ft (1.1m) 6s |
| Best Surf | 9PM (Thu 27th Aug) | 3.5ft (1.1m) 6s |
| Most Powerful | 9PM (Thu 27th Aug) | 3.5ft (1.1m) 6s |
Table - best surf conditions forecast for 38 Line over the next 16 days.
The Lowdown
Alright, Rusty here. Let's get into it.
First up, looking at the 16-day window, we've got a real slow start. The first week or so is pretty much a write-off for any decent waves. We're looking at a long stretch of tiny, weak swells that just aren't doing anything for 38 Line. The water temp is sitting at a balmy 79° right now, which is about 4° warmer than normal for this time of year – that's notably warm, so you can leave the booties at home.
The first few days, from Sunday the 23rd through to the end of August, are all about flat, weak conditions. The combined energy values are all under 100 (3, 1, 1, 1, 5, 8, 11, 36, 29, 30, 56, 79, etc.), meaning the swell is barely registering. We're talking ankle-snappers at best, 0.3ft to 3ft, with some glassy mornings but generally poor surf. It's not worth paddling out for.
The first real glimmer of anything comes on Thursday, September 3rd. A moderate cross-onshore wind kicks up the swell a bit, but it's still a messy 4ft to 5ft with a combined energy of 118 and 203. The wind is on it, so it's choppy. Not the day.
Now, hold on to your boards, because Friday, September 4th, looks like a beast. The swell jumps to 12ft in the morning and 13ft in the afternoon from the ENE and NE, with a period of 9-10 seconds. The combined energy hits 1933 and then a massive 3304. But here's the kicker: this is all on a strong cross-onshore wind. The forecast says "poor surf conditions" and "wind and tide favorable, but the swell is predicted to be too big for this break." This is a full-on, expert-only situation. If you're a seasoned charger, you might look at it, but for most of us, it's going to be a washing machine. The wind is making it ugly.
Saturday, September 5th, is the real standout, but it's still a tricky one. The morning brings a massive 31ft swell from the NNE with a period of 13 seconds. The combined energy is a staggering 28992. The wind is cross-shore at 19 mph, which is a fresh breeze. The comment says "wind and tide favorable, but the swell is predicted to be too big for this break." This swell is enormous and has a long period, which means it'll be a lot of energy. For 38 Line, a beach break, this massive long-period groundswell is going to break straight and be a complete beast. It's strictly for the absolute top-tier experts, and even then, it's a gamble. The afternoon improves slightly with a 21ft swell and a cross-offshore wind, making it cleaner, but still colossal.
The best, most accessible surf of the entire forecast is on Sunday, September 6th. The morning is the pick. The swell drops to a manageable 7ft from the NE, with a period of 11 seconds. The combined energy is a solid 1084. The wind is a light offshore from the WSW at 3 mph, making it glassy and clean. The forecast calls it "excellent surf conditions for experienced surfers." This is the one to circle. It's a solid size, but it's not the insane 31ft, and the clean conditions will make it rideable. The afternoon sees the swell drop a bit, but the wind shifts cross-on, so the morning is the window.
Monday, September 7th, is a drop-off. The swell is down to 3ft in the morning with glassy conditions, but the energy is weak (194). It's "surfable but very ordinary." After that, it fades out to nothing by the end of the forecast.
So, to sum it up: the first week is a total no-go. The second week has a massive, dangerous swell that's only for the brave. The true standout is the Sunday morning, September 6th, with 7ft from the NE, clean offshore winds, and a solid groundswell. That's your window. For the absolute experts, the Saturday morning, September 5th, is a promise of a huge, raw swell, but it's a risky one.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Mon night. Warm (max 31°C on Mon afternoon, min 23°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Thu afternoon. Warm (max 27°C on Wed afternoon, min 22°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | ESE 4 | ESE 4 | SE 3 | ESE 4 | SE 4 | N 3 | N 4 | ESE 2 | — | N 3 | NE 10 | NNE 8 | NE 7 | NE 6 | NE 6 | NE 6 | ENE 5 | NE 5 | ESE 5 | NE 7 | NE 8 |
Wave Graph | |||||||||||||||||||||
2 | 3 | 2 | 1 | 1 | 4 | 1 | 1 | 0 | 1 | 4 | 6 | 7 | 6 | 71 | 36 | 19 | 8 | 14 | 41 | 71 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-off | off | cross-on | glassy | glassy | on | cross-off | glassy | cross-on | cross-off | cross | cross-on | cross-off | glassy | on | cross-off | glassy | cross-on | off |
High Tide | 10:25AM0.29m | 3:19AM0.23m | 3:14AM0.23m | 12:24PM0.31m | 3:22AM0.23m | 1:10PM0.31m | 3:35AM0.23m | 1:53PM0.32m | 3:51AM0.23m | 2:35PM0.31m | 4:08AM0.23m | 3:17PM0.30m | |||||||||
Low Tide | 6:57PM0.08m | 5:32AM0.23m | 7:38PM0.07m | 6:31AM0.22m | 8:14PM0.06m | 7:14AM0.20m | 8:47PM0.05m | 7:53AM0.18m | 9:17PM0.04m | 8:32AM0.16m | 9:46PM0.05m | 9:12AM0.14m | 10:13PM0.06m | ||||||||
5:46 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | |
— | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:04 | — | — | 7:02 | — | — | 7:00 | — | — | 7:00 | — | |
mm | — | — | — | — | — | 1 | — | — | 1 | — | — | — | — | 1 | 2 | — | — | — | — | — | — |
Temp °C | 29 | 29 | 29 | 30 | 31 | 26 | 28 | 27 | 26 | 26 | 27 | 26 | 26 | 25 | 23 | 24 | 24 | 23 | 23 | 25 | 25 |
Feels °C | 32 | 32 | 32 | 33 | 34 | 30 | 32 | 31 | 30 | 30 | 29 | 30 | 30 | 28 | 25 | 26 | 25 | 25 | 25 | 26 | 28 |
Swell 1 Height (m) Direction Period (s) | ESE 4 | NE 7 | SE 3 | ESE 4 | — | N 3 | N 4 | — | — | — | N 3 | ESE 3 | NE 7 | NE 6 | NE 6 | NE 6 | ENE 5 | NE 5 | ESE 5 | NE 7 | NE 8 |
1 | 2 | 2 | 1 | — | 4 | 1 | — | — | — | 1 | 1 | 7 | 6 | 71 | 36 | 19 | 8 | 14 | 41 | 71 | |
Swell 2 Height (m) Direction Period (s) | NE 8 | — | N 6 | — | — | — | — | — | — | — | NE 10 | NNE 8 | ESE 3 | SE 4 | SE 4 | — | NNE 5 | ESE 5 | NE 5 | ESE 5 | ESE 5 |
2 | — | 1 | — | — | — | — | — | — | — | 4 | 6 | 1 | 1 | 1 | — | 10 | 7 | 7 | 15 | 8 | |
Swell 3 Height (m) Direction Period (s) | — | — | NE 6 | — | — | — | — | — | — | — | — | NE 6 | — | — | — | — | — | NE 6 | NE 7 | — | S 6 |
— | — | 2 | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | 1 | 9 | — | 1 | |
Wind waves Height (m) Direction Period (s) | — | ESE 4 | — | — | SE 4 | NNW 3 | — | ESE 2 | — | N 3 | — | — | NNW 2 | N 3 | — | — | — | — | — | — | — |
— | 3 | — | — | 1 | 4 | — | 1 | — | 1 | — | — | 1 | 4 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 582 | 707 | 668 | 319 | 707 | 569 | 569 | 569 | 569 | 569 | 582 | 569 | 582 | 582 | 0 | 582 | 707 | 668 | 582 | 707 | 0 |
Best forecast wave conditions in South Korea | |||||||||||||||||||||
Best forecast wave conditions in South Korea | |||||||||||||||||||||
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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.











