Surf Forecasts:
38 Line surf forecast from 16 Aug 2026:
- Best quality surf: Monday 17 Aug, 12AM (local time) - 3.5ft (1.0m), 5s period, SE swell with glassy winds.
- Most powerful swell: Monday 17 Aug, 9PM (local time) - 3.5ft (1.0m), 8s period, SE swell with 108 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 12AM (local time) - 3.5ft (1.0m), 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 Monday (Aug 17) at 12AM. The primary swell is predicted to be 1.0m and 5s period with a secondary swell of 0.1m 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 1.0m 8s and forecast to arrive on Monday (Aug 17) at 9PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Monday (Aug 17) at 3PM.
| Wave Type | Time (KST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 17th Aug) | 3.5ft (1.0m) 5s |
| Best Surf | 12AM (Mon 17th Aug) | 3.5ft (1.0m) 5s |
| Most Powerful | 9PM (Mon 17th Aug) | 3.5ft (1.0m) 8s |
Table - best surf conditions forecast for 38 Line over the next 16 days.
The Lowdown
Alright, mates, Rusty here. Let’s get into it.
Right off the bat, I gotta be straight with you: the next couple of weeks are looking pretty grim for 38 Line (Thirty-eight-line). We’re staring down a long, flat spell with barely a ripple to get excited about. The water’s sitting at a warm 77°, which is about normal for this time of year, so at least you won’t need a thick suit. But that’s where the good news ends for a while.
We’ve got a solid stretch of nothing from now through the 25th. There are a few pulses of ankle-biters in there—like the 2ft on Monday the 17th with a glassy morning, and a similar size on the 23rd—but the wave energy is weak, with readings in the single digits and tens (like 36 and 52). It’s just not enough to push you into anything. A couple of those afternoons look glassy, which is nice, but you’d be fighting for a wave that’s barely breaking. It’s a real dry spell, and for a spot like this, that’s a long time to wait.
Then, we finally get a pulse of something on Wednesday the 26th. The afternoon sees the swell bump up to 4ft from the SE with a period of 6 seconds, and the energy jumps to a moderate 151. It’s surfable, but the winds are light and variable, turning glassy. It’s still pretty ordinary, not the kind of thing you’d call in sick for. But it’s a sign that the ocean’s waking up.
The real standout, the one you’ve been waiting for, is a week later. Mark your calendars for Monday the 31st. The swell jumps to a solid 6ft from the NE on the morning, with energy readings way up at 401. The wind is a light cross-off from the SSW, keeping things clean. This is the one. It’s a bit big for beginners, but for the intermediate crew, this is going to be fun.
The afternoon of the 31st keeps the momentum going. Swell drops slightly to 5ft but swings more to the ENE and the period bumps up to 8 seconds. The wind turns more offshore from the WSW at 12 mph, and the energy is even stronger at 492. This is the pick of the whole forecast. Clean, punchy, and with that offshore wind, 38 Line is going to be showing its best face. It’s a longer period swell, which can be a bit tricky at a beach break, but the direction and wind should make it line up well here.
Before that, on Saturday the 30th, the wind is going to be howling from the ESE at 37 mph, with heavy rain. That’s a full-blown blown-out mess, more for the kite crew than the paddle crew. Definitely sit that one out.
So, to sum it up: a long, flat, frustrating stretch, then one very promising day on the 31st. The long-range call on that Monday is promising, but as always, it’s a week out, so we’ll keep an eye on it. But right now, that’s your window.
Stay stoked.
Rusty
Short Range ForecastHeavy rain (total 27mm), heaviest during Mon night. Warm (max 31°C on Wed morning, min 23°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Fri night. Warm (max 32°C on Wed afternoon, min 23°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Sun 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||
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) | SE 3 | SE 5 | SE 6 | SSE 8 | SE 7 | SE 6 | SE 6 | SE 5 | SE 6 | SE 5 | SE 5 | SE 5 | N 3 | SE 4 | N 3 | NE 5 | NE 5 | NE 10 | NE 10 | SE 6 |
Wave Graph | ||||||||||||||||||||
3 | 46 | 31 | 39 | 94 | 24 | 15 | 7 | 11 | 6 | 4 | 4 | 1 | 1 | 1 | 1 | 1 | 4 | 14 | 39 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-off | glassy | glassy | glassy | on | cross-off | off | glassy | cross-off | glassy | cross | off | cross | cross-on | off | cross-on | cross | cross-off |
High Tide | 5:14PM0.27m | 5:58AM0.25m | 6:07PM0.24m | 6:24AM0.26m | 7:10PM0.21m | 6:53AM0.27m | 8:43PM0.19m | 7:28AM0.27m | 8:17AM0.28m | 9:15AM0.28m | ||||||||||
Low Tide | 11:46PM0.09m | 12:08PM0.12m | 00:08AM0.13m | 1:10PM0.12m | 00:22AM0.16m | 2:22PM0.12m | 00:18AM0.18m | 3:45PM0.11m | 5:04PM0.11m | 6:08PM0.10m | ||||||||||
— | — | 5:41 | — | — | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | |
7:17 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:13 | — | — | 7:10 | — | — | 7:09 | — | |
mm | — | — | — | 9 | 18 | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 3 | 4 |
Temp °C | 24 | 24 | 25 | 23 | 24 | 26 | 27 | 26 | 31 | 32 | 28 | 26 | 25 | 24 | 24 | 24 | 24 | 24 | 23 | 23 |
Feels °C | 25 | 28 | 27 | 27 | 28 | 29 | 30 | 28 | 33 | 34 | 30 | 30 | 28 | 28 | 28 | 28 | 28 | 27 | 25 | 26 |
Swell 1 Height (m) Direction Period (s) | ENE 5 | NE 5 | SE 6 | SSE 8 | SE 7 | SE 6 | — | SE 5 | SE 6 | E 6 | SE 5 | SE 5 | SE 4 | SE 4 | N 3 | — | NE 5 | — | ESE 5 | SE 6 |
3 | 1 | 31 | 39 | 94 | 24 | — | 7 | 11 | 1 | 4 | 4 | 1 | 1 | 1 | — | 1 | — | 10 | 39 | |
Swell 2 Height (m) Direction Period (s) | — | — | ESE 7 | E 6 | ESE 5 | N 3 | E 6 | ESE 5 | — | S 7 | ESE 5 | — | SE 4 | SE 4 | — | NE 5 | — | NE 10 | NE 10 | NE 8 |
— | — | 4 | 19 | 9 | 1 | 1 | 5 | — | 1 | 2 | — | 1 | 1 | — | 1 | — | 4 | 14 | 10 | |
Swell 3 Height (m) Direction Period (s) | — | — | NE 5 | ENE 5 | NE 4 | — | — | — | — | E 6 | — | — | — | — | N 6 | — | — | — | — | NE 5 |
— | — | 1 | 3 | 1 | — | — | — | — | 1 | — | — | — | — | 1 | — | — | — | — | 1 | |
Wind waves Height (m) Direction Period (s) | SE 3 | SE 5 | — | NNW 2 | — | — | SE 6 | — | — | SE 5 | — | — | N 3 | — | — | — | — | — | — | — |
3 | 46 | — | 1 | — | — | 15 | — | — | 6 | — | — | 1 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 694 | 0 | 668 | 0 | 0 | 626 | 707 | 668 | 668 | 634 | 668 | 668 | 707 | 582 | 668 | 671 | 582 | 582 | 649 | 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.











