Surf Forecasts:
38 Line surf forecast from 21 Aug 2026:
- Best quality surf: Thursday 27 Aug, 9PM (local time) - 3.5ft (1.0m), 6s period, NE swell with cross-offshore winds.
- Most powerful swell: Thursday 27 Aug, 3PM (local time) - 4ft (1.2m), 6s period, NNE swell with 96 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 9PM (local time) - 3.5ft (1.0m), 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 1.0m and 6s period with a secondary swell of 0.1m and 5s. Another secondary swell of 0.2m and 6s is also forecast. 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 1.2m 6s and forecast to arrive on Thursday (Aug 27) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Wednesday (Aug 26) at 6PM.
| Wave Type | Time (KST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 27th Aug) | 3.5ft (1.0m) 6s |
| Best Surf | 9PM (Thu 27th Aug) | 3.5ft (1.0m) 6s |
| Most Powerful | 3PM (Thu 27th Aug) | 4ft (1.2m) 6s |
Table - best surf conditions forecast for 38 Line over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on the cards for the next couple of weeks.
To be honest, we're looking at a pretty flat spell for a while. The first real surf action doesn't show up until the morning of Thursday, 27th August, and even then it's nothing to write home about. We've got a solid stretch of days with next to nothing, so don't rush to grab your board just yet.
Thursday, 27th August sees a tiny pulse of swell, but it's a messy one. The morning offers a 2ft NE swell, but it's cross-shore wind from the north at 15 km/h, keeping things choppy. Energy is very weak (38). The afternoon actually gets a bit more size, pushing 4ft from the NNE, but the wind swings to a cross-onshore and the energy jumps to moderate (108). Still, the conditions are rated poor, so it's more of a look-see than a go-time.
Friday, 28th August is the first glimmer of hope. The morning goes glassy with a calm wind, and a 3ft NE swell is on offer. The energy is still low (81), but it's clean. It's surfable, but very ordinary. Not a standout, but if you're jonesing, you could get a few knee-high waves.
Saturday, 29th August the swell lifts a bit more. The morning brings a 4ft NE swell with a period of 10 seconds, bumping the energy to 221 (moderate). The wind is light cross-onshore, so it's a bit bumpy, but the size is there. It's a marginal call, but worth a check.
Sunday, 30th August is actually the pick of the first week. The morning glass off with a 4ft ESE swell, and it's clean. The energy is solid (215) and the conditions are rated as "good." This is a nice little window for some fun waves, especially for the intermediate crew. The break is 38 Line, and it's a fairly consistent exposed spot that likes an E swell. This ESE direction is close enough to get some good lines.
The Big One - Friday, 4th September. Now, this is a long way off, so take it with a grain of salt, but the forecast is eye-opening. We're looking at a massive 10ft NE swell rolling in during the morning. The energy is a staggering 2688, which is very strong. The wind is glassy, so it will be clean. But listen, 10ft is expert territory. This is a serious, powerful groundswell that will be closing out the beach break. For the experienced crew, it could be a day of life, but for everyone else, sit this one out. The afternoon drops to a still-heavy 8ft, but the wind goes cross-onshore, making it messy.
Saturday, 5th September is interesting. The morning has a clean, glassy 4ft NNE swell with moderate energy (370). That's a much more manageable size for the average surfer, and the conditions look good. That could be the real sweet spot after the giant Friday.
Overall, the water temp is running a touch warmer than normal at 78°, which is nice. The standout window is the morning of Sunday, 30th August for some clean, fun-sized waves. The big one on Friday, 4th September is a monster for experts only, and the following Saturday morning might be the best compromise for the rest of us.
Rusty.
Short Range ForecastModerate rain (total 13mm), heaviest on Sat morning. Warm (max 27°C on Fri morning, min 23°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Wed night. Warm (max 31°C on Mon morning, min 23°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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) | — | — | SSE 3 | NE 11 | NE 10 | NE 9 | NE 8 | NE 7 | N 6 | — | SE 4 | NW 4 | NNW 5 | — | — | — | NE 9 | NE 8 | NE 6 | NNE 6 | NE 6 |
Wave Graph | |||||||||||||||||||||
0 | 0 | 1 | 5 | 4 | 3 | 2 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 9 | 88 | 96 | 52 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | off | cross | cross-off | glassy | cross-on | cross-off | off | glassy | glassy | glassy | on | glassy | cross | cross | cross-off | cross | cross | cross-off |
High Tide | 9:15AM0.28m | 10:25AM0.29m | 3:19AM0.23m | 3:14AM0.23m | 12:24PM0.31m | 3:22AM0.23m | 1:10PM0.31m | 3:35AM0.23m | 1:53PM0.32m | ||||||||||||
Low Tide | 5:04PM0.11m | 6:08PM0.10m | 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 | ||||||||||
5:43 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | |
— | 7:10 | — | — | 7:09 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:04 | — | — | 7:02 | — | |
mm | 2 | — | 1 | 5 | — | — | — | 5 | — | — | — | — | — | — | — | — | — | 3 | 3 | 1 | — |
Temp °C | 27 | 27 | 26 | 23 | 25 | 25 | 27 | 27 | 27 | 31 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 25 | 23 | 24 | 22 |
Feels °C | 29 | 29 | 29 | 26 | 28 | 29 | 29 | 30 | 32 | 33 | 32 | 31 | 32 | 31 | 32 | 29 | 29 | 29 | 24 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | — | — | SSE 3 | NE 11 | NE 10 | SE 3 | ESE 3 | NE 7 | — | — | SE 4 | — | NNW 5 | — | — | — | NE 9 | NE 6 | NE 6 | — | NE 6 |
— | — | 1 | 5 | 4 | 1 | 1 | 2 | — | — | 1 | — | 2 | — | — | — | 3 | 5 | 88 | — | 52 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | NE 9 | NE 8 | NE 7 | N 6 | — | — | NW 4 | — | — | — | — | — | NE 8 | SE 4 | — | ESE 5 |
— | — | — | — | — | 3 | 2 | 2 | 1 | — | — | 1 | — | — | — | — | — | 9 | 1 | — | 2 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 6 | SE 4 | — | — | SE 6 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — | 1 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | SSE 3 | — | — | — | — | — | — | — | — | — | — | — | NNE 4 | — | NNE 6 | — |
— | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | 5 | — | 96 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 668 | 707 | 582 | 582 | 712 | 582 | 582 | 707 | 569 | 582 | 569 | 569 | 569 | 569 | 569 | 925 | 925 | 925 | 582 | 569 | 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.











