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Surf Forecasts:
Castles surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 am Monday 11 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 8AM is: 1.7m 9s primary swell from a East direction and 0.4m 12s secondary swell from a Southeast direction (forecast issued at 02:00am May 11). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | 5ft (1.6m) | 9s |
| Afternoon (11 May) | 4.5ft (1.4m) | 9s |
| Evening (11 May) | 5.5ft (1.7m) | 9s |
Table - waves today at Castles. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 81mm), heaviest during Mon afternoon. Warm (max 24°C on Tue night, min 21°C on Mon afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Monday 11 | Tuesday 12 | Wednesday 13 | ||||||||||||||||||||||
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 8 | E 9 | E 9 | E 9 | E 9 | ESE 9 | E 9 | E 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | ESE 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | ESE 10 | ESE 10 | |
517 | 476 | 435 | 412 | 363 | 333 | 332 | 505 | 708 | 676 | 560 | 493 | 432 | 349 | 304 | 269 | 281 | 256 | 268 | 268 | 196 | 192 | 140 | 158 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | on | cross | cross | cross-on | on | on | on | on | on | cross-on | cross | cross | cross | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 2:09AM1.53m | 1:52PM1.52m | 3:01AM1.63m | 3:19PM1.62m | 3:46AM1.75m | 4:26PM1.76m | ||||||||||||||||||
Low Tide | 8:04AM0.95m | 8:28PM0.65m | 9:14AM0.75m | 9:32PM0.64m | 10:10AM0.51m | |||||||||||||||||||
 | |  |  |  |  | |  | | |  | | | | | | | | |  | | | |  | |
 | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:06 | — |
— | — | — | 2 | 6 | 23 | 32 | 1 | 1 | 1 | 2 | 6 | 5 | 2 | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 22 | 23 | 23 | 23 | 23 | 21 | 21 | 22 | 21 | 22 | 22 | 22 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 |
21 | 23 | 24 | 25 | 26 | 20 | 20 | 20 | 21 | 23 | 23 | 23 | 24 | 24 | 24 | 26 | 25 | 25 | 26 | 26 | 25 | 24 | 25 | 25 | |
Swell 1 Height (m) Direction Period (s) | SE 13 | E 9 | E 9 | E 9 | E 9 | ESE 9 | E 9 | N 6 | — | — | ESE 9 | ESE 9 | E 9 | ESE 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | ESE 10 | ESE 10 |
 kJ | 56 | 476 | 435 | 412 | 363 | 333 | 332 | 1 | — | — | 560 | 493 | 432 | 349 | 304 | 269 | 281 | 256 | 268 | 268 | 196 | 192 | 140 | 158 |
Swell 2 Height (m) Direction Period (s) | N 6 | SE 12 | SE 12 | SE 12 | SE 11 | SE 11 | SE 10 | N 6 | — | — | — | — | — | S 11 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | W 5 | W 5 | ENE 10 | ENE 9 | ENE 9 | ENE 9 |
| kJ | 3 | 52 | 51 | 47 | 43 | 30 | 37 | 1 | — | — | — | — | — | 2 | 7 | 7 | 6 | 7 | 15 | 11 | 71 | 49 | 90 | 88 |
Swell 3 Height (m) Direction Period (s) | — | N 6 | N 6 | N 6 | N 6 | N 6 | N 6 | — | — | — | — | — | — | — | S 11 | S 11 | — | S 10 | SE 8 | SSE 8 | WNW 5 | WNW 4 | NW 4 | SSE 7 |
| kJ | — | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | 2 | 2 | — | 2 | 17 | 13 | 12 | 8 | 5 | 11 |
Wind waves Height (m) Direction Period (s) | E 8 | — | — | — | — | — | — | E 9 | ESE 9 | ESE 9 | — | — | — | WSW 4 | SW 4 | WSW 4 | W 4 | W 4 | — | NNW 3 | N 3 | N 3 | — | NW 4 |
| kJ | 517 | — | — | — | — | — | — | 505 | 708 | 676 | — | — | — | 10 | 7 | 13 | 13 | 15 | — | 1 | 2 | 2 | — | 6 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 33 | 33 | 596 | 67 | 16 | 687 | 33 | 596 | 67 | 588 | 17 | 596 | 588 | 16 | 16 | 16 | 16 | 16 | 0 | 0 | 0 | 16 | 16 | 0 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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