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Surf Forecasts:
Uchiumi surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 8 pm Tuesday 12 May 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
21.7° C
(Which is slightly cooler than normal)How big are the waves at Uchiumi today?
The current surf forecast for Uchiumi at 3AM is: 1.5m 9s primary swell from a East-southeast direction and 0.1m 8s secondary swell from a South direction (forecast issued at 08:00pm May 12). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 May) | 4.5ft (1.4m) | 9s |
| Afternoon (13 May) | 4.5ft (1.3m) | 9s |
| Evening (13 May) | 4ft (1.2m) | 9s |
Table - waves today at Uchiumi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 23mm), heaviest during Tue night. Warm (max 21°C on Wed afternoon, min 17°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 12 | Wednesday 13 | Thursday 14 | Friday 15 | |||||||||||||||||||||
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 | 12 PM | 3 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
ESE 9 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | |
329 | 391 | 383 | 383 | 314 | 307 | 307 | 260 | 260 | 254 | 216 | 211 | 203 | 169 | 203 | 207 | 217 | 226 | 231 | 231 | 220 | 184 | 142 | 142 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | glassy | glassy | cross-off | glassy | glassy | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-on | on | cross-on | on | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | on | |
High Tide | 3:24PM1.62m | 3:31AM1.81m | 4:16PM1.75m | 4:03AM1.87m | 5:02PM1.86m | 4:33AM1.93m | ||||||||||||||||||
Low Tide | 9:20PM0.66m | 9:57AM0.43m | 10:06PM0.69m | 10:34AM0.24m | 10:46PM0.74m | 11:09AM0.09m | ||||||||||||||||||
 |  | |  |  | | | | | |  | |  | | | | |  |  | |  | | | | |
 | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:16 | — | — | — | — |
 | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | 7:02 |
— | 1 | 2 | 3 | 2 | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 2 | 1 | 2 | |
Temp °C | 21 | 20 | 18 | 17 | 17 | 19 | 20 | 21 | 21 | 20 | 19 | 18 | 18 | 20 | 21 | 21 | 21 | 21 | 21 | 20 | 19 | 20 | 20 | 21 |
21 | 21 | 19 | 17 | 18 | 20 | 20 | 21 | 21 | 21 | 20 | 18 | 18 | 20 | 21 | 21 | 22 | 22 | 22 | 20 | 18 | 18 | 18 | 20 | |
Swell 1 Height (m) Direction Period (s) | ESE 9 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 |
 kJ | 329 | 391 | 383 | 383 | 314 | 307 | 307 | 260 | 260 | 254 | 216 | 211 | 203 | 169 | 203 | 207 | 217 | 226 | 231 | 231 | 220 | 184 | 142 | 142 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 8 | S 8 | S 8 | SE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | S 7 | S 7 |
| kJ | 2 | 1 | 1 | 1 | 3 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | — | S 11 | — | S 10 | S 10 | — | — | — | — | — | S 10 | — | — | — | S 9 | — | — | — | — | — | — | — | — | E 16 |
| kJ | — | 2 | — | 2 | 2 | — | — | — | — | — | 2 | — | — | — | 2 | — | — | — | — | — | — | — | — | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNE 3 | NE 3 | ENE 5 | E 5 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 7 | 28 | 43 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 46 | 0 | 0 | 0 | 0 | 0 | 46 | 314 | 286 | 0 | 0 | 0 | 0 | 15 | 46 | 46 | 43 | 18 | 0 | 15 | 18 | 46 | 46 | 299 |
Best forecast wave conditions in Kyu Shu | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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