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Surf Forecasts:
Uchiumi surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 2 am Thursday 23 Apr 2026 JSTForecast update in hr min s Forecast update imminent
Uchiumi surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Uchiumi sea temperature is
21.3° C
(Which is normal for this time of year)How big are the waves at Uchiumi today?
The current surf forecast for Uchiumi at 5AM is: 1.0m 11s primary swell from a East direction and 0.5m 5s secondary swell from a South direction (forecast issued at 02:00am April 23). An open ocean swell of 1.3m 6s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Apr) | 4.5ft (1.3m) | 7s |
| Afternoon (23 Apr) | 4.5ft (1.3m) | 7s |
| Evening (23 Apr) | 3ft (0.9m) | 7s |
Table - waves today at Uchiumi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 40mm), heaviest during Thu morning. Very mild (max 18°C on Sat night, min 14°C on Fri morning). Mainly fresh winds. | ||||||||||||||||||||||||
Thursday 23 | Friday 24 | Saturday 25 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
E 11 | E 11 | E 11 | S 7 | S 7 | S 7 | S 7 | SSE 7 | NNE 6 | SE 13 | E 9 | NE 7 | NE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | E 9 | E 10 | E 10 | E 10 | |
223 | 223 | 223 | 175 | 203 | 186 | 127 | 82 | 115 | 47 | 57 | 299 | 306 | 452 | 452 | 496 | 547 | 597 | 676 | 839 | 1224 | 1643 | 1854 | 1849 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross | cross | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | |
High Tide | 10:30PM1.54m | 8:43AM1.61m | 11:57PM1.49m | 9:44AM1.46m | 1:29AM1.52m | 11:46AM1.36m | ||||||||||||||||||
Low Tide | 3:24AM1.16m | 4:15PM0.33m | 4:54AM1.23m | 5:35PM0.46m | 7:12AM1.17m | 7:06PM0.52m | ||||||||||||||||||
 |  |  | |  |  | |  | |  | | | | | | | | | | | | | |  | |
 | — | 5:37 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:47 | — | — | — | — | — | — | — | 6:49 | — |
7 | 14 | 12 | 14 | — | 1 | 1 | 1 | 1 | — | — | 1 | 1 | 1 | 1 | — | 1 | 1 | — | — | 1 | 1 | 3 | 4 | |
Temp °C | 16 | 16 | 16 | 16 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 14 | 14 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 17 | 17 | 18 |
14 | 14 | 14 | 12 | 16 | 15 | 15 | 14 | 13 | 14 | 13 | 12 | 11 | 10 | 11 | 12 | 12 | 12 | 12 | 11 | 12 | 13 | 14 | 14 | |
Swell 1 Height (m) Direction Period (s) | E 11 | E 11 | E 11 | S 7 | S 7 | S 7 | S 7 | SSE 7 | S 7 | S 7 | S 7 | ENE 7 | ENE 7 | ENE 8 | E 8 | ENE 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 10 | E 10 |
 kJ | 223 | 223 | 223 | 148 | 203 | 186 | 127 | 82 | 62 | 47 | 45 | 134 | 153 | 210 | 286 | 295 | 349 | 383 | 465 | 537 | 770 | 1083 | 1375 | 1409 |
Swell 2 Height (m) Direction Period (s) | ESE 14 | ESE 13 | S 5 | E 10 | E 10 | E 10 | E 10 | E 10 | NE 6 | E 9 | E 9 | S 7 | S 7 | S 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | S 6 | S 6 | — | — | — |
| kJ | 18 | 18 | 13 | 175 | 133 | 96 | 66 | 65 | 27 | 43 | 57 | 34 | 23 | 22 | 14 | 13 | 8 | 8 | 7 | 3 | 3 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | SE 13 | ESE 13 | ESE 13 | NE 4 | NE 5 | SE 13 | ESE 13 | E 10 | SE 13 | SE 13 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | SW 7 | SE 15 | — | — | — | — |
| kJ | — | 85 | 35 | 35 | 9 | 8 | 44 | 66 | 65 | 42 | 41 | 29 | 28 | 28 | 14 | 14 | 14 | 14 | 2 | 8 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | S 4 | S 6 | NNW 3 | NNE 4 | NNE 5 | NE 5 | NE 6 | NNE 6 | NE 6 | NE 6 | NE 7 | NE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | E 9 | E 10 | E 10 | E 10 |
| kJ | — | 8 | 105 | 4 | 26 | 25 | 20 | 40 | 115 | 32 | 53 | 299 | 306 | 452 | 452 | 496 | 547 | 597 | 676 | 839 | 1224 | 1643 | 1854 | 1849 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 43 | 43 | 46 | 37 | 46 | 18 | 43 | 286 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 53 | 43 | 43 | 43 | 43 | 56 | 46 | 46 |
Best forecast wave conditions in Kyu Shu | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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