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Surf Forecasts:
Jumunjin surfForecast / South Korea / South Korea
48hr Weather and Surf, issued 2 pm Wednesday 20 May 2026 KSTForecast update in hr min s Forecast update imminent
Jumunjin surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Jumunjin sea temperature is
16.4° C
(Which is 1.6°C warmer than normal for this time of year)How big are the waves at Jumunjin today?
The current surf forecast for Jumunjin at 8PM is: 0.9m 4s primary swell from a Northeast direction (forecast issued at 02:00pm May 20). The wind direction is predicted to be cross-onshore.
| Time (KST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | - | - |
| Afternoon (20 May) | 1.5ft (0.4m) | 4s |
| Evening (20 May) | 3ft (0.9m) | 4s |
Table - waves today at Jumunjin. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 118mm), heaviest during Wed night. Very mild (max 17°C on Wed night, min 13°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
N 4 | NNE 4 | NNE 4 | NE 4 | ENE 5 | E 6 | E 6 | ENE 6 | ENE 7 | ENE 7 | NE 8 | NE 8 | NE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | |
2 | 5 | 11 | 28 | 75 | 106 | 127 | 205 | 315 | 655 | 743 | 774 | 935 | 575 | 635 | 404 | 402 | 327 | 319 | 270 | 270 | 226 | 277 | 293 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | glassy | cross-off | cross-off | cross-off | cross-on | |
High Tide | 4:38PM0.35m | 8:50AM0.23m | 5:32PM0.33m | 9:58AM0.23m | 6:33PM0.30m | |||||||||||||||||||
Low Tide | 00:47AM0.01m | 11:08AM0.22m | 1:48AM0.03m | 12:21PM0.22m | 2:49AM0.05m | |||||||||||||||||||
 |  | |  | |  | |  | | | |  |  |  |  |  | | | | | | |  | | |
 | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:09 | — | — |
 | — | — | 7:30 | — | — | — | — | — | — | — | 7:31 | — | — | — | — | — | — | — | 7:32 | — | — | — | — | 7:32 |
5 | 11 | 19 | 24 | 13 | 8 | 15 | 8 | 6 | 5 | 4 | 4 | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 14 | 15 | 15 | 16 | 16 | 17 | 17 | 16 | 15 | 15 | 15 | 15 | 14 | 14 | 15 | 16 | 16 | 16 | 14 | 13 | 13 | 13 | 15 |
15 | 13 | 13 | 13 | 14 | 15 | 17 | 15 | 14 | 11 | 11 | 11 | 12 | 12 | 12 | 13 | 14 | 14 | 15 | 14 | 12 | 12 | 12 | 14 | |
Swell 1 Height (m) Direction Period (s) | N 4 | SE 4 | — | — | NE 9 | NE 9 | NE 6 | NE 6 | SE 7 | — | — | NE 8 | NE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
 kJ | 2 | 1 | — | — | 3 | 3 | 52 | 109 | 44 | — | — | 774 | 935 | 575 | 635 | 404 | 402 | 327 | 319 | 270 | 270 | 226 | 277 | 293 |
Swell 2 Height (m) Direction Period (s) | NNE 4 | — | — | — | NE 9 | — | ESE 6 | ESE 6 | — | — | — | — | — | S 7 | S 6 | — | — | — | — | — | — | — | — | — |
| kJ | 2 | — | — | — | 3 | — | 32 | 33 | — | — | — | — | — | 4 | 1 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SE 4 | — | — | — | — | — | E 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | — | — | — | — | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NNE 4 | NNE 4 | NE 4 | ENE 5 | E 6 | E 6 | ENE 6 | ENE 7 | ENE 7 | NE 8 | — | — | N 7 | N 6 | N 6 | N 6 | — | — | — | — | — | — | — |
| kJ | — | 5 | 11 | 28 | 75 | 106 | 127 | 205 | 315 | 655 | 743 | — | — | 110 | 62 | 57 | 47 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 653 | 653 | 653 | 653 | 653 | 653 | 653 | 304 | 304 | 304 | 304 | 641 | 560 | 16 | 16 | 653 | 653 | 688 | 667 | 0 | 0 | 0 | 0 | 10 |
Best forecast wave conditions in South Korea | ||||||||||||||||||||||||
Best forecast wave conditions in South Korea | ||||||||||||||||||||||||
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