Surf Forecasts:
Jumunjin surf forecast from 4 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 12PM (local time) - 10ft (3.0m), 9s period, NE swell with onshore winds.
- Most powerful swell: Wednesday 9 Sep, 9AM (local time) - 10ft (3.0m), 8s period, NE swell with 1,169 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 12AM (local time) - 4.5ft (1.3m), 7s period with ENE 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 Tuesday (Sep 08) at 12AM. The primary swell is predicted to be 1.3m and 7s period. 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 3.0m 8s and forecast to arrive on Wednesday (Sep 09) at 9AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (KST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Tue 8th Sep) | 4.5ft (1.3m) 7s |
| Best Surf | 12PM (Wed 9th Sep) | 10ft (3.0m) 9s |
| Most Powerful | 9AM (Wed 9th Sep) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Jumunjin over the next 16 days.
Short Range ForecastLight rain (total 6mm), mostly falling on Sat afternoon. Warm (max 23°C on Sat morning, min 21°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 13mm), heaviest on Wed morning. Warm (max 23°C on Tue afternoon, min 18°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
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 6 | NE 6 | NE 5 | NE 8 | ENE 6 | NE 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | NE 8 | NE 8 | NE 8 | NE 6 | NE 6 | E 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 41 | 75 | 55 | 99 | 108 | 62 | 147 | 236 | 249 | 177 | 115 | 128 | 137 | 1169 | 783 | 345 | 136 | 116 | 57 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | cross-on | cross-on | cross-off | cross-off | on | glassy | on | on | on | on | on | glassy |
High Tide | 7:53AM0.30m | 9:11AM0.31m | 2:29AM0.23m | 10:35AM0.31m | 2:32AM0.23m | 11:50AM0.32m | 2:49AM0.23m | 12:54PM0.33m | 3:08AM0.23m | 1:51PM0.32m | |||||||||
Low Tide | 4:36PM0.07m | 5:51PM0.05m | 4:24AM0.23m | 6:51PM0.04m | 5:54AM0.21m | 7:41PM0.03m | 6:56AM0.19m | 8:24PM0.03m | 7:49AM0.16m | 9:02PM0.04m | |||||||||
 |  |  |  | | | | |  |  | | | |  |  | | | |  | |
 | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — |
 | 6:51 | — | 6:49 | — | — | 6:47 | — | — | 6:45 | — | — | 6:45 | — | — | 6:43 | — | — | 6:40 | — |
mm | — | — | 1 | 2 | 2 | 1 | — | — | — | — | — | — | 2 | 11 | — | — | — | — | — |
Temp °C | 22 | 23 | 23 | 22 | 23 | 23 | 22 | 23 | 23 | 20 | 22 | 23 | 21 | 19 | 19 | 20 | 21 | 21 | 20 |
Feels °C | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 20 | 21 | 20 | 22 | 24 | 22 | 16 | 16 | 16 | 18 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | ENE 6 | ESE 5 | ESE 5 | ESE 5 | — | ESE 6 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | — | NE 8 | NE 8 | NE 6 | NE 6 | NE 6 |
| kJ | 41 | 2 | 9 | 9 | — | 62 | 147 | 236 | 249 | 177 | 115 | 128 | 137 | — | 783 | 345 | 136 | 116 | 36 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 57 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NE 6 | NE 5 | NE 8 | ENE 6 | NE 7 | NE 6 | N 4 | N 4 | — | — | — | — | NE 8 | — | — | — | — | — |
| kJ | — | 75 | 55 | 99 | 108 | 54 | 51 | 14 | 16 | — | — | — | — | 1169 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 568 | 633 | 633 | 633 | 653 | 655 | 560 | 560 | 560 | 0 | 0 | 560 | 0 | 653 | 653 | 653 | 633 | 653 | 0 |
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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