Surf Forecasts:
38 Line surf forecast from 7 Aug 2026:
- Best quality surf: Thursday 13 Aug, 9AM (local time) - 10ft (3.0m), 9s period, NE swell with onshore winds.
- Most powerful swell: Wednesday 12 Aug, 6PM (local time) - 11ft (3.5m), 10s period, NE swell with 2,450 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 6PM (local time) - 4.5ft (1.4m), 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 Sunday (Aug 09) at 6PM. The primary swell is predicted to be 1.4m and 6s period with a secondary swell of 0.1m and 11s. Another secondary swell of 0.1m and 11s 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 3.5m 10s and forecast to arrive on Wednesday (Aug 12) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Sunday (Aug 09) at 3AM.
| Wave Type | Time (KST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Sun 9th Aug) | 4.5ft (1.4m) 6s |
| Best Surf | 9AM (Thu 13th Aug) | 10ft (3.0m) 9s |
| Most Powerful | 6PM (Wed 12th Aug) | 11ft (3.5m) 10s |
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 cookin’ at 38 Line.
For the first stretch, it’s pretty flat. From Friday the 7th through Saturday afternoon the 8th, there’s nothing worth waxing up for. The water’s warm – 82°, which is a solid 6° warmer than usual for this time of year, so it’s like bathwater.
Saturday afternoon shows a little bump, with a 6ft swell from the NNE, but it’s short-period at 7 seconds, and the wind is cross-offshore. The combined energy is moderate (282), but the overall quality is marginal. Not your day.
Sunday the 9th stays meh, with 4ft to 5ft of NNE/NE swell, still short period, and cross or cross-off winds. The energy is moderate (153-179), but it’s not clean. Monday and Tuesday are the same story – onshore and cross-onshore winds, small swell, poor conditions.
Now, the real standout is Thursday morning, the 13th of August. This is the one. We’ve got a solid 10ft swell from the NNE with a 9-second period, and the combined energy is a massive 2630 – that’s strong wave energy. The wind is onshore, but the forecast says wind and tide are favorable. The catch is, the swell is predicted to be too big for this break. This is expert-only territory. If you’re a charger, this could be a morning of a lifetime. Beginners, stay on the beach – 10ft is no joke.
Friday the 14th is your best bet for the average surfer. The swell drops to 4ft from the NE in the morning, with a clean cross-offshore wind from the NNW, and the period is 8 seconds. The energy is moderate (313), and the conditions are clean. It’s the most user-friendly option of the whole forecast.
After that, it fades out hard. From Saturday the 15th through the 22nd, it’s a long, slow decline. Swell drops below 3ft, periods shorten, and winds are mostly cross-onshore. There are a few glassy mornings on the 19th and 22nd, but the swell is tiny – 1.0ft to 2ft. Not enough for a decent ride.
So, the best on offer: Thursday the 13th morning for the big-wave crew, but it’s serious. For everyone else, Friday the 14th morning is your cleanest chance. The second week is a write-off.
Rusty.
Short Range ForecastHeavy rain (total 35mm), heaviest during Sat afternoon. Warm (max 28°C on Fri afternoon, min 21°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 34mm), heaviest during Wed night. Warm (max 26°C on Wed night, min 23°C on Tue night). Winds increasing (light winds from the E on Mon afternoon, fresh winds from the NNE by Wed afternoon). | ||||||||||||||||||||
Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | |||||||||||||||
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) | — | ESE 2 | SE 3 | NE 4 | NNE 7 | NNE 8 | NNE 7 | NE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | NE 8 | NE 8 | NNE 10 | NE 9 | NE 9 | NE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 1 | 1 | 16 | 282 | 376 | 149 | 172 | 118 | 90 | 104 | 125 | 102 | 139 | 228 | 328 | 1261 | 1338 | 1374 | 890 | 443 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-off | cross-on | cross-off | cross-off | cross-off | cross | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | on | cross-on | cross-on |
High Tide | 1:07AM0.21m | 9:36AM0.30m | 2:30AM0.23m | 10:44AM0.32m | 3:01AM0.24m | 3:29AM0.24m | 12:54PM0.35m | 3:56AM0.24m | 1:51PM0.36m | 4:21AM0.23m | 2:44PM0.35m | ||||||||||
Low Tide | 4:45PM0.08m | 2:19AM0.21m | 6:00PM0.05m | 4:10AM0.22m | 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 | ||||||||
 | |  |  |  |  | |  | |  |  |  | | | | | | | | | | |
 | 5:31 | — | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:35 | — | — | 5:35 | — | — | 5:37 | — | — |
 | — | 7:29 | — | — | 7:27 | — | — | 7:25 | — | — | 7:24 | — | — | 7:23 | — | — | 7:22 | — | — | 7:22 | — |
mm | — | — | 2 | 4 | 6 | 6 | 9 | 2 | 6 | 1 | — | — | — | — | 1 | 4 | 5 | 23 | 7 | 4 | 12 |
Temp °C | 27 | 28 | 27 | 26 | 23 | 22 | 23 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 25 | 26 | 27 | 28 | 27 |
Feels °C | 31 | 31 | 32 | 29 | 23 | 21 | 24 | 25 | 26 | 26 | 26 | 25 | 23 | 23 | 22 | 22 | 23 | 26 | 29 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | — | — | E 4 | ESE 5 | — | NNE 8 | NNE 7 | N 11 | NE 9 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | NE 8 | ENE 10 | ENE 10 | NE 9 | NE 9 | NE 8 |
| kJ | — | — | 1 | 3 | — | 376 | 149 | 2 | 3 | 90 | 104 | 125 | 102 | 139 | 228 | 328 | 674 | 1100 | 679 | 890 | 443 |
Swell 2 Height (m) Direction Period (s) | — | — | — | E 6 | — | ESE 5 | E 5 | NE 11 | — | — | — | — | — | — | — | — | — | — | ENE 9 | — | ESE 6 |
| kJ | — | — | — | 1 | — | 8 | 4 | 5 | — | — | — | — | — | — | — | — | — | — | 577 | — | 41 |
Swell 3 Height (m) Direction Period (s) | — | — | E 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | ESE 2 | SE 3 | NE 4 | NNE 7 | — | — | NE 6 | ENE 6 | — | — | — | — | — | — | — | NE 8 | NNE 10 | NE 9 | — | — |
| kJ | — | 1 | 1 | 16 | 282 | — | — | 172 | 118 | — | — | — | — | — | — | — | 1261 | 1338 | 1374 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1017 | 983 | 929 | 694 | 707 | 582 | 582 | 513 | 513 | 513 | 703 | 649 | 582 | 649 | 582 | 582 | 634 | 319 | 513 | 694 | 319 |
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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