Surf Forecasts:
Jumunjin surf forecast from 12 Aug 2026:
- Best quality surf: Monday 17 Aug, 6PM (local time) - 5.5ft (1.7m), 6s period, SSE swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 12AM (local time) - 7ft (2.2m), 9s period, NE swell with 695 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 12AM (local time) - 3ft (0.9m), 6s period with NNE swell.
Best Forecast Surf Conditions for Jumunjin this week:
The surf forecast for Jumunjin over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 15) at 12AM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.2m and 6s. Another secondary swell of 0.8m and 5s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Jumunjin in the next 16 days are 2.2m 9s and forecast to arrive on Thursday (Aug 13) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Monday (Aug 17) at 9AM.
| Wave Type | Time (KST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sat 15th Aug) | 3ft (0.9m) 6s |
| Best Surf | 6PM (Mon 17th Aug) | 5.5ft (1.7m) 6s |
| Most Powerful | 12AM (Thu 13th Aug) | 7ft (2.2m) 9s |
Table - best surf conditions forecast for Jumunjin over the next 16 days.
Short Range ForecastModerate rain (total 19mm), heaviest on Fri morning. Warm (max 24°C on Wed night, min 22°C on Wed afternoon). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 18mm), heaviest on Sun night. Warm (max 30°C on Tue morning, min 23°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||
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) | ENE 8 | NE 9 | NNE 8 | NNE 8 | NE 7 | NE 7 | NE 7 | NNE 6 | ENE 6 | N 5 | NNE 5 | NNE 5 | ENE 5 | ENE 5 | NE 6 | SE 6 | SE 7 | SE 6 | SE 6 | SE 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 277 | 695 | 458 | 344 | 143 | 187 | 131 | 67 | 20 | 19 | 9 | 4 | 3 | 2 | 1 | 65 | 77 | 17 | 11 | 8 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-off | glassy | glassy | glassy | glassy | cross | cross-off | cross-off | cross-off | off | off | cross-off | off |
High Tide | 4:22AM0.23m | 2:44PM0.35m | 4:47AM0.23m | 3:34PM0.33m | 5:10AM0.23m | 4:24PM0.30m | 5:34AM0.24m | 5:14PM0.27m | 5:59AM0.25m | 6:08PM0.24m | 6:25AM0.26m | 7:11PM0.21m | ||||||||
Low Tide | 9:30PM0.00m | 8:36AM0.17m | 10:10PM0.01m | 9:27AM0.15m | 10:46PM0.04m | 10:19AM0.14m | 11:18PM0.06m | 11:12AM0.12m | 11:46PM0.10m | 12:09PM0.12m | 00:08AM0.13m | 1:11PM0.12m | 00:23AM0.16m | |||||||
 |  | |  |  | | |  |  | |  | | |  | |  | | | | | |
 | — | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — | 5:39 | — | — | 5:39 | — | — | 5:41 | — | — |
 | 7:22 | — | — | 7:21 | — | — | 7:20 | — | — | 7:17 | — | — | 7:16 | — | — | 7:15 | — | — | 7:15 | — |
mm | 1 | 7 | 3 | 2 | 1 | 4 | 1 | — | — | — | — | — | 1 | 12 | 5 | — | — | — | — | — |
Temp °C | 22 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 24 | 25 | 24 | 25 | 26 | 25 | 26 | 28 | 26 | 30 | 31 | 27 |
Feels °C | 21 | 25 | 24 | 25 | 25 | 26 | 24 | 25 | 27 | 29 | 28 | 29 | 29 | 28 | 29 | 31 | 29 | 33 | 33 | 30 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | NE 9 | E 8 | E 8 | NE 7 | NE 7 | NE 7 | NNE 6 | ENE 6 | N 5 | NNE 5 | NNE 5 | ENE 5 | ENE 5 | NE 6 | E 6 | SE 7 | SE 6 | SE 6 | SE 6 |
| kJ | 277 | 695 | 169 | 142 | 143 | 187 | 131 | 67 | 20 | 19 | 9 | 4 | 3 | 2 | 1 | 1 | 77 | 17 | 11 | 8 |
Swell 2 Height (m) Direction Period (s) | — | — | — | E 8 | E 7 | ESE 6 | ESE 6 | ESE 6 | — | ENE 6 | ENE 6 | ENE 6 | NNE 5 | — | NE 6 | E 6 | E 7 | E 6 | NE 6 | E 6 |
| kJ | — | — | — | 114 | 83 | 14 | 7 | 3 | — | 13 | 7 | 3 | 2 | — | 1 | 1 | 1 | 1 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | ENE 8 | — | — | — | — | — | — | — | — | E 7 | — | — | — | — | — | — |
| kJ | — | — | — | — | 64 | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 4 | — | NNE 8 | NNE 8 | — | — | NNW 4 | NNW 5 | N 4 | — | — | SE 4 | SE 3 | SE 3 | SE 6 | SE 6 | — | — | — | — |
| kJ | 21 | — | 458 | 344 | — | — | 16 | 35 | 10 | — | — | 1 | 1 | 5 | 72 | 65 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 641 | 560 | 498 | 560 | 498 | 653 | 691 | 0 | 653 | 691 | 633 | 653 | 691 | 653 | 684 | 0 | 0 | 653 | 972 | 635 |
Best forecast wave conditions in South Korea | ||||||||||||||||||||
Best forecast wave conditions in South Korea | ||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Jumunjin surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Jumunjin Surf forecast
The above surf forecast table for Jumunjin provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Jumunjin can be found by selecting the local surf guide option on the grey menu. Our Jumunjin 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 (Jumunjin) 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 Jumunjin 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.
Jumunjin is 18 km (11 miles) from the city of Kangnung. If you plan a holiday in South Korea, look for hotels and other accommodation in Kangnung. Kangnung has rooms for a wide range of budgets as well as car hire and transport links.
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