
Surf Forecasts:
38 Line surf forecast from 9 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 9PM (local time) - 10ft (3.0m), 9s period, NE swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 12AM (local time) - 10ft (3.0m), 10s period, NE swell with 1,552 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 3AM (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 3AM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 0.2m and 8s. 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 3.0m 10s and forecast to arrive on Thursday (Aug 13) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (KST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 10th Aug) | 4ft (1.2m) 6s |
| Best Surf | 9PM (Wed 12th Aug) | 10ft (3.0m) 9s |
| Most Powerful | 12AM (Thu 13th Aug) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for 38 Line over the next 16 days.
The Lowdown
Alright, let's get into it. The next couple of weeks are lookin’ a bit grim for the most part, with only one real window that’s got any fire in it. We’re looking at a long stretch of small, junky waves for the most part, so don't get your hopes up too high. The ocean’s gonna be pretty quiet, but there’s one day that stands out like a sore thumb, and it’s worth planning for.
The first few days are pretty much a write-off. We’ve got some small swell on the 9th, around 5-6ft, but it’s coming with a cross-shore wind and a short 7-second period. The energy is weak to moderate, around 226-267, and the water’s gonna be a mess. It’s just not worth paddling out for that chop. The water temp is a notable 82°F, which is 7°F warmer than usual for this time of year, so if you do get in, it’s gonna feel like a bath. The swell direction is from the NE, which is fine for 38 Line, but the wind just kills it.
The 10th and 11th are smaller, with the swell dropping to around 3-4ft. The winds are lighter on the 11th, and Tuesday morning looks glassy, but the swell is just too weak and short-period to get excited about. The energy drops right down to the 80s and 90s. It’s surfable, but it’s gonna be a grovel on a log, not a proper session.
We get a little pulse on the 12th, with the swell back up to 5-6ft, but the wind is howling from the north at 12-15 mph, making it a cross-shore mess. Energy is moderate, around 250-276, but again, the conditions will be poor.
Now, here’s the one to circle on your calendar: Thursday morning, the 13th of August. This is the standout of the whole period. We’ve got a solid 10ft of NE swell with a 9-second period, and the energy is strong, way up at 1608. The wind is a cross-offshore from the north at 18 mph, which is going to groom it and keep it clean. The forecast says it might be too big for this break, and honestly, at 10ft, it’s going to be a handful. This is a session for the experienced crew only. The break is fairly consistent, so you’ll get your waves, but the power is real. The afternoon on the 13th drops to 8ft, but the wind goes cross-shore and it gets messy.
After that, it’s a slow slide back into nothing. The 14th has some junky 4-4ft cross-on waves, and then from the 15th onwards, we’re looking at a long run of tiny, weak surf. The swell drops below 3ft, periods shorten to 5-6 seconds, and the energy is minimal to non-existent. There are a few glassy mornings, like the 16th and the 20th, but with 2-2ft of swell, it's barely a ripple. The ocean is just flat and weak. The 22nd and beyond is basically nothing, with energy readings in single digits or zero. The last few days are a complete blank.
So, the takeaway is this: the 13th of August is the only day with any real size and power, and it’s only for experts. Everything else is a flat, weak, or messy battle. Keep your expectations low and wait for that one morning.
Rusty
Short Range ForecastModerate rain (total 10mm), heaviest 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 49mm), heaviest during Thu night. Warm (max 27°C on Fri afternoon, min 22°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
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 | ENE 8 | E 7 | NE 7 | ENE 7 | ENE 6 | NE 7 | NE 6 |
Wave Graph | |||||||||||||||||||||
226 | 186 | 114 | 114 | 121 | 111 | 84 | 91 | 139 | 250 | 276 | 1552 | 1328 | 988 | 501 | 153 | 93 | 57 | 26 | 49 | 34 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | on | on | cross-on | glassy | cross-on | cross | cross | cross | cross-off | cross-off | cross | on | cross-on | cross-on | off | cross | cross-on | 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 | 9 | 1 | — | — | — | — | — | — | — | — | — | 8 | 7 | 9 | 15 | 6 | 4 | — | — | — | — |
Temp °C | 23 | 24 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 26 | 26 | 27 | 25 | 26 | 27 | 26 |
Feels °C | 24 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 24 | 22 | 23 | 24 | 25 | 26 | 28 | 28 | 30 | 28 | 29 | 30 | 30 |
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 | ENE 9 | NE 9 | ENE 8 | E 7 | NE 7 | ENE 7 | ENE 6 | NE 7 | NE 6 |
— | 2 | 114 | 114 | 121 | 111 | 84 | 91 | 139 | 250 | 276 | 1552 | 280 | 988 | 501 | 153 | 93 | 57 | 26 | 49 | 34 | |
Swell 2 Height (m) Direction Period (s) | — | NNE 7 | NE 9 | — | — | — | — | — | — | — | — | — | — | — | SE 9 | NNE 7 | SE 6 | N 5 | NNE 5 | ESE 4 | SE 4 |
— | 79 | 3 | — | — | — | — | — | — | — | — | — | — | — | 3 | 93 | 15 | 8 | 4 | 2 | 1 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 6 | N 6 | SE 5 | ESE 4 | ESE 4 | ESE 4 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 52 | 9 | 6 | 2 | 2 | 2 | |
Wind waves Height (m) Direction Period (s) | NE 7 | NE 6 | — | — | — | — | — | — | — | — | — | — | NE 9 | — | ENE 8 | — | — | — | — | N 4 | — |
226 | 186 | — | — | — | — | — | — | — | — | — | — | 1328 | — | 469 | — | — | — | — | 3 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 513 | 582 | 73 | 582 | 668 | 16 | 0 | 703 | 582 | 582 | 634 | 513 | 319 | 626 | 513 | 513 | 769 | 0 | 634 | 707 | 582 |
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.











