Surf Forecasts:
38 Line surf forecast from 13 Sep 2026:
- Best quality surf: Saturday 19 Sep, 6PM (local time) - 5ft (1.5m), 7s period, NE swell with cross-offshore winds.
- Most powerful swell: Saturday 19 Sep, 6PM (local time) - 5ft (1.5m), 7s period, NE swell with 206 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 9PM (local time) - 4.5ft (1.3m), 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 Monday (Sep 14) at 9PM. The primary swell is predicted to be 1.3m and 6s period. 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 1.5m 7s and forecast to arrive on Saturday (Sep 19) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Saturday (Sep 19) at 9AM.
| Wave Type | Time (KST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Mon 14th Sep) | 4.5ft (1.3m) 6s |
| Best Surf | 6PM (Sat 19th Sep) | 5ft (1.5m) 7s |
| Most Powerful | 6PM (Sat 19th Sep) | 5ft (1.5m) 7s |
Table - best surf conditions forecast for 38 Line over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s talk about what’s happening at 38 Line for the next couple of weeks in imperial terms. The water is 75°, which is a tad warmer than average for the season.
First off, there’s a big gap of nothing good right at the beginning. From Sunday the 13th all the way through the end of the following week, it’s pretty well flat. You’re looking at a week of tiny, weak slop – waves from 0.7 to 1.0 ft with hardly any energy behind 'em (3 to 5 combined energy). The wind is all over the place, but the swell just isn’t showing up. A real bummer, but it happens.
Tuesday morning the 15th gives us a little tease – a 2 ft wave from the NE with a glassy surface, but it’s ordinary and weak (58 energy). By Friday the 18th, we get a bit of a bump to 4 ft, but it’s cross-on and choppy. The weekend of the 19th and 20th pushes up to 5 ft from the ENE and NE, but the wind stays cross or cross-on, keeping things messy. The energy is climbing into that moderate zone (198-199), but the quality is still poor.
Now, mark your calendar for Tuesday the 22nd of September. That morning is the one. We’ve got a chunky 7 ft groundswell from the NE with an 8-second period, and the wind is dead calm – glassy and clean. The combined energy is a massive 1000. That’s a powerful, heavy swell. It’s over 8 ft, so this is expert-only territory. Beginners, give this one a wide berth.
The next morning, Wednesday the 23rd, is also a good call. The swell drops to a still-healthy 4 ft from the ENE, but the wind is glass again. The energy is 217, so still a good push. A solid backup option if Tuesday is too much.
There’s one more little window of clean surf on Sunday the 27th morning with a 4 ft NNE swell and clean offshore breezes, but it’s a one-off before it fades back to tiny.
So, bottom line: the first week-plus is a total loss. The highlight is clearly Tuesday the 22nd morning – big, glassy, and powerful, for the experts only. Wednesday the 23rd morning is your next best bet for a clean, solid wave.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Sun afternoon, min 18°C on Tue night). Winds decreasing (fresh winds from the N on Mon morning, calm by Tue morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Thu morning, min 18°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sun 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||
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 5 | ESE 5 | NNE 5 | NE 6 | NE 6 | NE 6 | E 5 | E 5 | E 5 | ESE 5 | E 6 | ESE 7 | E 7 | E 7 | E 7 | ENE 7 | ENE 7 | NE 7 | NE 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 2 | 6 | 5 | 46 | 150 | 39 | 19 | 16 | 14 | 7 | 7 | 22 | 58 | 94 | 107 | 107 | 157 | 198 | 178 | 159 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross | off | glassy | cross-on | cross-off | glassy | on | cross-off | glassy | on | cross-on | cross-on | cross-on | cross | cross | cross | off |
High Tide | 4:23PM0.27m | 4:27AM0.27m | 5:13PM0.25m | 4:50AM0.28m | 6:07PM0.23m | 5:14AM0.28m | 7:12PM0.21m | 5:42AM0.29m | 9:06PM0.20m | 6:15AM0.28m | 7:01AM0.28m | |||||||||
Low Tide | 10:30PM0.11m | 10:56AM0.08m | 10:52PM0.14m | 11:43AM0.08m | 11:07PM0.16m | 12:34PM0.09m | 11:13PM0.19m | 1:32PM0.10m | 10:45PM0.20m | 2:46PM0.11m | 4:10PM0.11m | |||||||||
 |  |  | |  |  | | | | | | | | | | | | | | | |
 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — |
 | 6:37 | — | — | 6:36 | — | — | 6:34 | — | — | 6:32 | — | — | 6:30 | — | — | 6:29 | — | — | 6:28 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 23 | 22 | 21 | 21 | 22 | 20 | 21 | 21 | 20 | 22 | 22 | 21 | 22 | 22 | 20 | 21 | 21 | 18 |
Feels °C | 23 | 20 | 22 | 21 | 23 | 21 | 22 | 20 | 22 | 21 | 21 | 22 | 22 | 22 | 21 | 21 | 20 | 20 | 20 | 18 |
Swell 1 Height (m) Direction Period (s) | ESE 4 | ESE 5 | ESE 5 | E 5 | NE 6 | NE 6 | NE 6 | E 5 | E 5 | E 5 | ESE 5 | E 6 | ESE 7 | E 7 | E 7 | E 7 | ENE 7 | ENE 7 | NE 7 | NE 7 |
| kJ | 2 | 6 | 5 | 2 | 150 | 39 | 15 | 16 | 14 | 7 | 7 | 22 | 58 | 94 | 107 | 107 | 157 | 198 | 178 | 159 |
Swell 2 Height (m) Direction Period (s) | SE 6 | — | — | — | — | ENE 6 | — | NNE 5 | NE 4 | — | NE 5 | NE 5 | — | — | — | — | — | — | — | — |
| kJ | 1 | — | — | — | — | 6 | — | 2 | 1 | — | 1 | 1 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | E 6 | — | — | NE 5 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | NW 4 | NNE 5 | — | E 5 | E 5 | — | — | — | — | — | — | — | — | — | N 4 | NNW 5 | — | NW 4 |
| kJ | — | — | 4 | 46 | — | 13 | 19 | — | — | — | — | — | — | — | — | — | 7 | 40 | — | 18 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 707 | 668 | 649 | 707 | 0 | 0 | 649 | 649 | 649 | 649 | 649 | 649 | 668 | 513 | 513 | 649 | 634 | 26 | 671 | 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.
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