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Surf Forecasts:
Jumunjin surfForecast / South Korea / South Korea
48hr Weather and Surf, issued 2 am 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
16.3° 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 6AM is: 0.3m 4s primary swell from a North direction and 0.1m 5s secondary swell from a Southeast direction (forecast issued at 02:00am May 20). The wind direction is predicted to be glassy.
| Time (KST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 1ft (0.3m) | 4s |
| Afternoon (20 May) | 1ft (0.3m) | 4s |
| Evening (20 May) | 3.5ft (1.0m) | 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 135mm), heaviest during Wed night. Very mild (max 17°C on Wed night, min 12°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | ||||||||||||||||||||||
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 | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
NE 5 | N 3 | N 4 | N 4 | N 4 | NNE 4 | ENE 3 | ENE 4 | E 5 | ENE 6 | E 6 | E 7 | ENE 7 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | |
1 | 1 | 2 | 2 | 3 | 3 | 7 | 35 | 61 | 106 | 217 | 360 | 503 | 588 | 408 | 1030 | 949 | 782 | 678 | 541 | 499 | 373 | 310 | 256 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | glassy | glassy | glassy | cross-off | on | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | |
High Tide | 7:32AM0.24m | 4:38PM0.35m | 8:50AM0.23m | 5:32PM0.33m | 9:58AM0.23m | 6:33PM0.30m | ||||||||||||||||||
Low Tide | 11:49PM-0.01m | 10:21AM0.22m | 00:47AM0.01m | 11:08AM0.22m | 1:48AM0.03m | 12:21PM0.22m | ||||||||||||||||||
 | |  | |  |  | |  | | | | | | | |  | |  |  |  | | | | | |
 | — | 5:11 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:30 | — | — | — | — | — | — | — | 7:31 | — | — | — | — | — | — | — | 7:32 | — |
— | — | 1 | 5 | 9 | 13 | 21 | 23 | 15 | 11 | 6 | 10 | 6 | 6 | 4 | 4 | 2 | — | — | — | — | — | — | — | |
Temp °C | 20 | 21 | 17 | 15 | 15 | 14 | 15 | 16 | 16 | 16 | 17 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 15 | 16 | 16 | 16 | 14 |
19 | 20 | 17 | 15 | 15 | 13 | 13 | 14 | 14 | 15 | 16 | 13 | 14 | 13 | 11 | 12 | 13 | 11 | 12 | 12 | 13 | 14 | 15 | 13 | |
Swell 1 Height (m) Direction Period (s) | NNW 3 | SE 5 | N 4 | N 4 | N 4 | NNE 4 | — | — | NE 9 | NE 9 | — | — | E 7 | E 7 | E 8 | — | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
 kJ | 1 | 1 | 2 | 2 | 3 | 3 | — | — | 3 | 3 | — | — | 187 | 311 | 408 | — | 949 | 782 | 678 | 541 | 499 | 373 | 310 | 256 |
Swell 2 Height (m) Direction Period (s) | SE 4 | NE 5 | SE 5 | SE 4 | SE 4 | SE 4 | — | — | — | — | — | — | — | — | — | — | S 7 | S 7 | — | — | — | — | — | — |
| kJ | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | NE 5 | NE 5 | NE 5 | NE 5 | NE 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | N 3 | — | NNW 4 | — | N 4 | ENE 3 | ENE 4 | E 5 | ENE 6 | E 6 | E 7 | ENE 7 | ENE 8 | NE 7 | ENE 8 | — | N 6 | N 6 | N 6 | N 5 | N 6 | N 6 | NNW 6 |
| kJ | — | 1 | — | 2 | — | 3 | 7 | 35 | 61 | 106 | 217 | 360 | 503 | 588 | 365 | 1030 | — | 74 | 68 | 56 | 34 | 31 | 23 | 10 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 653 | 653 | 653 | 653 | 653 | 653 | 653 | 679 | 653 | 653 | 653 | 690 | 304 | 691 | 304 | 633 | 560 | 498 | 16 | 633 | 568 | 691 | 10 | 10 |
Best forecast wave conditions in South Korea | ||||||||||||||||||||||||
Best forecast wave conditions in South Korea | ||||||||||||||||||||||||
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