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Surf Forecasts:
Castles surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 am Tuesday 12 May 2026 JSTForecast update in hr min s Forecast update imminent
Castles surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Castles sea temperature is
24.2° C
(Which is 1.1°C colder than average for this time of year)How big are the waves at Castles today?
The current surf forecast for Castles at 12PM is: 1.5m 9s primary swell from a East direction (forecast issued at 08:00am May 12). An open ocean swell of 0.1m 5s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 5ft (1.6m) | 9s |
| Afternoon (12 May) | 4.5ft (1.4m) | 9s |
| Evening (12 May) | 4.5ft (1.3m) | 9s |
Table - waves today at Castles. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 4mm), mostly falling on Tue morning. Warm (max 23°C on Tue morning, min 22°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 12 | Wednesday 13 | Thursday 14 | Fri 15 | |||||||||||||||||||||
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 | E 9 | E 9 | ESE 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | ESE 10 | ENE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | |
413 | 402 | 347 | 311 | 275 | 287 | 246 | 262 | 268 | 266 | 157 | 125 | 125 | 136 | 163 | 128 | 128 | 125 | 123 | 120 | 115 | 115 | 86 | 94 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross-on | cross | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | on | on | on | cross-on | |
High Tide | 3:01AM1.63m | 3:19PM1.62m | 3:46AM1.75m | 4:26PM1.76m | 4:28AM1.88m | 5:23PM1.89m | ||||||||||||||||||
Low Tide | 9:14AM0.75m | 9:32PM0.64m | 10:10AM0.51m | 10:27PM0.63m | 10:59AM0.27m | 11:15PM0.64m | ||||||||||||||||||
 |  | | | |  | | | |  | | | | |  | | | | | |  | | | | |
 | 5:45 | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 |
 | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:07 | — | — | 7:07 |
1 | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | |
Temp °C | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 23 | 23 | 23 | 22 | 22 | 22 | 22 |
23 | 24 | 24 | 25 | 25 | 25 | 25 | 26 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 22 | 22 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | |
Swell 1 Height (m) Direction Period (s) | SSE 9 | E 9 | E 9 | ESE 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 10 |
 kJ | 8 | 402 | 347 | 311 | 275 | 287 | 246 | 262 | 268 | 266 | 157 | 125 | 125 | 136 | 163 | 128 | 128 | 125 | 123 | 120 | 115 | 115 | 86 | 94 |
Swell 2 Height (m) Direction Period (s) | W 5 | — | SW 5 | WSW 4 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SSE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | SSE 7 | SSE 7 | SSE 7 | ENE 9 | ENE 8 |
| kJ | 1 | — | 1 | 2 | 11 | 18 | 17 | 17 | 17 | 17 | 12 | 121 | 110 | 108 | 84 | 86 | 84 | 64 | 64 | 9 | 9 | 9 | 49 | 41 |
Swell 3 Height (m) Direction Period (s) | W 5 | — | — | S 11 | WSW 4 | SW 4 | SW 4 | WSW 4 | WSW 4 | SW 4 | — | SSE 8 | SSE 8 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SE 12 | SE 12 | SSE 7 | SSE 6 |
| kJ | 1 | — | — | 2 | 1 | 2 | 2 | 1 | 1 | 1 | — | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 9 | 9 | 6 | 6 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | ESE 9 | — | — | — | — | — | — | — | — | ENE 10 | ENE 10 | — | — | — | — | — | — | ENE 3 | E 3 | ENE 9 | ENE 9 | ENE 9 | E 4 | E 4 |
| kJ | 413 | — | — | — | — | — | — | — | — | 145 | 129 | — | — | — | — | — | — | 2 | 3 | 84 | 65 | 65 | 6 | 7 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 596 | 596 | 596 | 596 | 92 | 92 | 92 | 92 | 23 | 29 | 17 | 588 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 63 | 92 | 16 | 588 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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