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Surf Forecasts:
Uchiumi surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 8 am Wednesday 13 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 2PM is: 1.3m 9s primary swell from a East-southeast direction and 0.2m 8s secondary swell from a South-southeast direction (forecast issued at 08:00am May 13). The wind direction is predicted to be cross-onshore.
| 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 ForecastLight rain (total 5mm), mostly falling on Fri night. Warm (max 21°C on Thu morning, min 18°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 13 | Thursday 14 | Friday 15 | Sat 16 | |||||||||||||||||||||
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 | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
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 | E 7 | E 8 | E 8 | E 8 | |
314 | 307 | 266 | 260 | 260 | 254 | 216 | 211 | 203 | 169 | 169 | 173 | 217 | 226 | 235 | 225 | 220 | 219 | 142 | 108 | 153 | 357 | 359 | 408 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | on | glassy | on | glassy | cross | cross | cross | cross-on | on | cross-on | on | cross | cross | cross | cross | cross-on | cross-on | on | on | on | on | cross-on | |
High Tide | 3:31AM1.81m | 4:16PM1.75m | 4:03AM1.87m | 5:02PM1.86m | 4:33AM1.93m | 5:45PM1.93m | ||||||||||||||||||
Low Tide | 9:57AM0.43m | 10:06PM0.69m | 10:34AM0.24m | 10:46PM0.74m | 11:09AM0.09m | 11:23PM0.80m | ||||||||||||||||||
 | | |  | |  |  | | | | | |  |  | | | | | | | |  | | | |
 | 5:18 | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:16 |
 | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:02 | — | — | 7:04 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | |
Temp °C | 17 | 19 | 20 | 20 | 20 | 19 | 18 | 18 | 18 | 20 | 21 | 21 | 21 | 20 | 19 | 18 | 18 | 20 | 21 | 21 | 21 | 20 | 20 | 20 |
17 | 19 | 19 | 20 | 20 | 20 | 18 | 18 | 19 | 20 | 21 | 20 | 22 | 20 | 19 | 17 | 17 | 18 | 18 | 18 | 19 | 18 | 19 | 20 | |
Swell 1 Height (m) Direction Period (s) | 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 | E 9 | E 8 | E 8 | E 8 |
 kJ | 314 | 307 | 266 | 260 | 260 | 254 | 216 | 211 | 203 | 169 | 169 | 173 | 217 | 226 | 235 | 225 | 220 | 219 | 142 | 108 | 108 | 249 | 359 | 408 |
Swell 2 Height (m) Direction Period (s) | 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 | S 7 | E 9 | S 6 | S 6 |
| kJ | 3 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 1 | 87 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | S 10 | — | — | — | — | S 10 | S 10 | — | — | — | — | — | — | NNE 3 | — | — | — | — | — | E 16 | E 16 | S 7 | E 16 | — |
| kJ | 2 | — | — | — | — | 2 | 2 | — | — | — | — | — | — | 1 | — | — | — | — | — | 5 | 5 | 1 | 5 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | ENE 2 | ENE 2 | — | — | — | NNE 3 | NNE 3 | ENE 5 | E 6 | E 6 | E 7 | E 8 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | 1 | 7 | 42 | 39 | 86 | 153 | 357 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 312 | 0 | 43 | 0 | 2 | 2 | 2 | 15 | 46 | 299 | 46 | 2 | 13 | 2 | 18 | 46 | 382 | 299 | 46 | 43 | 43 | 43 |
Best forecast wave conditions in Kyu Shu | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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