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Surf Forecasts:
Castles surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 am Tuesday 28 Apr 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
23.9° C
(Which is slightly cooler than normal)How big are the waves at Castles today?
The current surf forecast for Castles at 10AM is: 0.6m 9s primary swell from a East-northeast direction and 0.4m 8s secondary swell from a Southeast direction (forecast issued at 02:00am April 28). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Apr) | 2ft (0.6m) | 9s |
| Afternoon (28 Apr) | 1.5ft (0.5m) | 8s |
| Evening (28 Apr) | 1.5ft (0.4m) | 8s |
Table - waves today at Castles. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 11mm), heaviest on Wed night. Warm (max 24°C on Wed night, min 20°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 28 | Wednesday 29 | Thursday 30 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SE 7 | ENE 8 | SSE 6 | SE 7 | SE 7 | SE 7 | S 4 | S 5 | ESE 6 | ESE 9 | ESE 9 | |
76 | 73 | 71 | 53 | 50 | 41 | 40 | 27 | 26 | 26 | 26 | 26 | 21 | 13 | 13 | 27 | 13 | 13 | 12 | 18 | 45 | 16 | 45 | 46 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | glassy | glassy | glassy | on | on | on | on | on | on | on | on | on | on | on | on | on | cross-on | cross | cross | cross-off | off | off | off | |
High Tide | 4:54AM1.70m | 5:18PM1.76m | 5:24AM1.80m | 6:03PM1.84m | 5:53AM1.89m | 6:44PM1.87m | ||||||||||||||||||
Low Tide | 10:38PM0.54m | 11:02AM0.50m | 11:20PM0.55m | 11:41AM0.31m | 11:56PM0.57m | 12:17PM0.17m | ||||||||||||||||||
 |  |  |  | | | | | | | | |  | | |  |  |  |  | | |  | |  | |
 | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:59 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 3 | 2 | — | 2 | 1 | 1 | — | |
Temp °C | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 21 | 22 | 22 | 22 | 22 | 22 | 23 | 24 | 24 | 23 | 22 | 21 | 21 |
20 | 21 | 21 | 20 | 20 | 20 | 21 | 20 | 20 | 19 | 18 | 19 | 21 | 21 | 22 | 22 | 22 | 23 | 24 | 24 | 24 | 22 | 21 | 19 | |
Swell 1 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SE 7 | NNW 8 | NNW 8 | NNW 8 | SSW 5 | SSW 5 | SSW 5 |
 kJ | 76 | 73 | 71 | 53 | 50 | 41 | 40 | 27 | 26 | 26 | 26 | 26 | 21 | 13 | 13 | 13 | 13 | 12 | 27 | 35 | 37 | 56 | 37 | 27 |
Swell 2 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 6 | ESE 8 | SE 7 | ENE 8 | SE 7 | SE 7 | SE 8 | NNW 8 | ESE 9 | ESE 9 |
| kJ | 11 | 17 | 16 | 15 | 15 | 20 | 20 | 9 | 18 | 17 | 17 | 17 | 12 | 11 | 6 | 6 | 13 | 13 | 11 | 11 | 18 | 35 | 45 | 46 |
Swell 3 Height (m) Direction Period (s) | N 5 | N 5 | N 5 | N 5 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 11 | SE 11 | SE 11 | SE 11 | E 10 | ESE 8 | E 10 | E 10 | NNW 9 | ENE 8 | ENE 8 | ENE 8 | ESE 6 | NNW 8 | ENE 10 |
| kJ | 2 | 2 | 2 | 2 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 2 | 6 | 2 | 8 | 8 | 12 | 6 | 6 | 16 | 32 | 10 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | SE 2 | SE 3 | SE 3 | SE 3 | SSE 4 | SSE 6 | SSE 4 | SSE 4 | S 4 | S 4 | S 5 | — | NW 4 | NW 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 4 | 5 | 5 | 27 | 8 | 10 | 9 | 18 | 45 | — | 4 | 156 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 17 | 0 | 0 | 0 | 94 | 1309 | 106 | 608 | 106 | 713 | 605 | 588 | 596 | 824 | 1309 | 824 | 714 | 715 | 1267 | 94 | 16 | 23 | 23 | 0 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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