
Surf Forecasts:
38 Line surf forecast from 8 Aug 2026:
- Best quality surf: Thursday 13 Aug, 12AM (local time) - 10ft (3.0m), 10s period, NE swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 3AM (local time) - 11ft (3.5m), 10s period, NE swell with 2,203 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 12AM (local time) - 4ft (1.2m), 6s period with ENE 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 10) at 12AM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 0.1m and 9s. 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 3.5m 10s and forecast to arrive on Thursday (Aug 13) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Wednesday (Aug 12) at 3PM.
| Wave Type | Time (KST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 10th Aug) | 4ft (1.2m) 6s |
| Best Surf | 12AM (Thu 13th Aug) | 10ft (3.0m) 10s |
| Most Powerful | 3AM (Thu 13th Aug) | 11ft (3.5m) 10s |
Table - best surf conditions forecast for 38 Line over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about what we’ve got cookin’ over the next couple of weeks.
We’re looking at a bit of a slow start, but there’s a solid pulse of energy headed our way mid-period that’ll get the blood pumpin’. The ocean’s been a bit lazy, but don’t write it off just yet.
The first real chance to get wet comes Sunday morning, August 9th, at 38 Line. It’s not gonna be pretty, though. We’ve got a 5ft NE swell, but it’s short-period at 7 seconds, and that light rain with a cross-off wind from the NNW at 12 mph won’t do you any favours. The wave energy is weak (226), and honestly, it’s a marginal call. The water is a steamy 82°, which is much warmer than normal for this time of year – that’s a three-degree anomaly, so you’ll feel like you’re in a bath.
Monday the 10th and Tuesday the 11th are a write-off. The swell drops to under 3ft, winds are onshore or cross-on, and the energy fades into the double digits. You’re better off doing something else.
Wednesday the 12th shows a little bump, with 5-5ft NE swell and cross-off winds, but the energy is still moderate (207-248). It’s clean enough, but nothing to write home about.
Now, here’s where it gets interesting. Thursday morning, August 13th, is the standout. We’ve got a 10ft NE swell pumping in with a 9-second period, and the wave energy is massive (1311). The wind is cross from the north at 19 mph, but this is strictly for experts only – 10ft is too big for most. It’s a risk of thunderstorms, and the forecast says the swell might be too big for the break, so keep your wits about you. The afternoon drops to 8ft and the wind lightens, but it’s still a big, lumpy day.
After that, the swell backs right off. From Friday the 14th onward, we’re looking at a long stretch of small, weak surf. Friday afternoon gives you a glassy 2ft wave, but it’s gutless with an energy reading of just 79. The next week is a desert – from August 16th through the 24th, the swell barely tickles 3ft, and most days are flat or close to it. There’s a glassy morning on August 20th with a 2ft NE swell, but it’s weak (46) and not worth paddling out for.
In short: the only real action is that Thursday the 13th. If you’re an experienced charger, that’s your window. Otherwise, it’s a long, quiet run with very little to offer.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Sun morning. Warm (max 25°C on Mon morning, min 22°C on Sun morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 30mm), heaviest during Wed night. Warm (max 27°C on Fri morning, min 23°C on Wed night). Winds decreasing (fresh winds from the N on Thu morning, calm by Thu night). | ||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||
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) | NE 7 | NE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | NE 8 | NE 10 | NE 9 | NE 9 | NE 8 | NE 7 | NE 7 | NE 6 | NE 6 | NE 6 | NE 6 |
Wave Graph | |||||||||||||||||||||
226 | 181 | 114 | 121 | 118 | 111 | 84 | 91 | 139 | 207 | 248 | 1838 | 1311 | 827 | 248 | 102 | 44 | 56 | 30 | 16 | 19 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | glassy | on | on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross | cross | cross-on | cross | glassy | off | cross-off | cross | off |
High Tide | 10:44AM0.32m | 3:01AM0.24m | 3:29AM0.24m | 12:54PM0.35m | 3:56AM0.24m | 1:51PM0.36m | 4:21AM0.23m | 2:44PM0.35m | 4:46AM0.23m | 3:35PM0.33m | 5:10AM0.24m | 4:24PM0.30m | |||||||||
Low Tide | 7:03PM0.03m | 5:41AM0.23m | 7:57PM0.01m | 6:48AM0.21m | 8:46PM-0.00m | 7:45AM0.20m | 9:30PM-0.00m | 8:37AM0.17m | 10:10PM0.01m | 9:28AM0.15m | 10:46PM0.03m | 10:19AM0.13m | 11:18PM0.06m | ||||||||
5:33 | — | — | 5:33 | — | — | 5:35 | — | — | 5:35 | — | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — | |
— | 7:25 | — | — | 7:24 | — | — | 7:23 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:19 | — | |
mm | 6 | 1 | — | — | — | — | — | — | — | — | — | 8 | 9 | 5 | 6 | 2 | — | — | — | — | — |
Temp °C | 23 | 23 | 24 | 25 | 25 | 24 | 25 | 25 | 25 | 24 | 24 | 25 | 25 | 26 | 26 | 27 | 27 | 25 | 27 | 27 | 25 |
Feels °C | 24 | 25 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 22 | 22 | 25 | 25 | 29 | 29 | 31 | 30 | 28 | 29 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | — | N 11 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | NE 8 | NE 10 | NE 9 | NE 9 | NE 8 | NE 7 | ENE 7 | NE 6 | NE 6 | NE 6 | NE 6 |
— | 2 | 114 | 121 | 118 | 111 | 84 | 91 | 139 | 207 | 248 | 1507 | 1311 | 827 | 248 | 102 | 29 | 56 | 30 | 16 | 19 | |
Swell 2 Height (m) Direction Period (s) | — | — | NE 9 | — | — | — | — | — | — | — | — | — | — | — | ENE 8 | ENE 7 | ESE 6 | ESE 5 | SE 4 | — | — |
— | — | 3 | — | — | — | — | — | — | — | — | — | — | — | 11 | 5 | 6 | 2 | 1 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 6 | ESE 6 | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 27 | 4 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NE 7 | NE 6 | — | — | — | — | — | — | — | — | NNW 4 | NE 10 | — | — | — | N 5 | NE 7 | — | — | — | — |
226 | 181 | — | — | — | — | — | — | — | — | 19 | 1838 | — | — | — | 7 | 44 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 513 | 582 | 0 | 513 | 703 | 16 | 582 | 582 | 582 | 582 | 634 | 513 | 319 | 26 | 319 | 16 | 0 | 0 | 649 | 707 | 569 |
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.











