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Surf Forecasts:
Castles surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 am Thursday 30 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
23.3° C
(Which is 1.4°C colder than average for this time of year)How big are the waves at Castles today?
The current surf forecast for Castles at 7AM is: 1.1m 5s primary swell from a South direction and 0.4m 7s secondary swell from a Southeast direction, 0.2m 8s secondary swell from a East-northeast direction (forecast issued at 02:00am April 30). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Apr) | 4.5ft (1.4m) | 5s |
| Afternoon (30 Apr) | 3ft (0.9m) | 6s |
| Evening (30 Apr) | 1.5ft (0.5m) | 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 7mm), mostly falling on Thu morning. Warm (max 25°C on Thu morning, min 19°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||||||
Thursday 30 | Friday 1 | Saturday 2 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
SSE 4 | SSE 4 | S 5 | SSW 5 | SSW 6 | SSE 6 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 8 | E 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | |
17 | 22 | 50 | 109 | 153 | 47 | 53 | 46 | 45 | 58 | 58 | 62 | 33 | 36 | 40 | 66 | 68 | 69 | 94 | 94 | 92 | 98 | 96 | 98 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross | cross | off | off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-on | cross-on | cross-on | on | on | on | |
High Tide | 5:53AM1.89m | 6:44PM1.87m | 6:21AM1.95m | 7:21PM1.87m | 6:48AM1.98m | 7:57PM1.83m | ||||||||||||||||||
Low Tide | 11:56PM0.57m | 12:17PM0.17m | 00:29AM0.61m | 12:52PM0.07m | 1:00AM0.67m | 1:26PM0.03m | ||||||||||||||||||
 |  |  | | |  |  | | | |  | |  | | |  | | | | | | | |  | |
 | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — |
— | 3 | 4 | 4 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 24 | 24 | 24 | 25 | 25 | 21 | 21 | 20 | 20 | 20 | 19 | 19 | 19 | 20 | 20 | 19 | 19 | 19 | 19 | 20 | 20 | 21 | 21 | 21 |
24 | 24 | 24 | 24 | 23 | 20 | 19 | 18 | 19 | 18 | 15 | 15 | 14 | 16 | 16 | 15 | 16 | 16 | 16 | 17 | 17 | 18 | 19 | 19 | |
Swell 1 Height (m) Direction Period (s) | ENE 8 | SE 7 | SE 7 | NW 8 | NW 7 | WSW 7 | W 6 | WSW 6 | WSW 6 | ESE 9 | ESE 9 | ESE 9 | E 8 | E 8 | ESE 8 | NNW 7 | NW 7 | ESE 9 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
 kJ | 13 | 12 | 12 | 16 | 14 | 91 | 100 | 47 | 25 | 58 | 58 | 62 | 33 | 36 | 40 | 57 | 46 | 69 | 94 | 94 | 92 | 98 | 96 | 98 |
Swell 2 Height (m) Direction Period (s) | SE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SSE 6 | S 5 | S 5 | ESE 9 | SW 6 | SW 6 | SW 6 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | NNW 7 | NNW 7 | NNW 6 | NNW 6 | NNW 7 | NNW 7 | NNW 6 |
| kJ | 8 | 13 | 6 | 6 | 7 | 47 | 20 | 21 | 45 | 18 | 19 | 10 | 18 | 19 | 19 | 66 | 68 | 40 | 25 | 14 | 14 | 9 | 9 | 8 |
Swell 3 Height (m) Direction Period (s) | E 10 | E 10 | NNW 8 | E 10 | E 10 | ENE 10 | ESE 9 | ESE 9 | S 5 | SSE 5 | SSE 5 | S 5 | SW 6 | S 5 | SW 6 | SW 6 | SW 6 | SW 5 | NE 9 | WNW 5 | NE 10 | NE 9 | NE 9 | NE 8 |
| kJ | 8 | 8 | 6 | 8 | 2 | 19 | 53 | 46 | 14 | 9 | 10 | 5 | 6 | 2 | 1 | 1 | 1 | 1 | 3 | 3 | 4 | 3 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | SSE 4 | SSE 4 | S 5 | SSW 5 | SSW 6 | NW 7 | NW 4 | NW 9 | NW 7 | NW 7 | NW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NE 4 | NE 4 | NE 4 | ENE 4 | E 4 | E 4 | E 4 | ESE 4 | ESE 4 |
| kJ | 17 | 22 | 50 | 109 | 153 | 34 | 12 | 126 | 107 | 96 | 139 | 120 | 138 | 121 | 96 | 12 | 12 | 7 | 8 | 7 | 6 | 7 | 8 | 9 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 824 | 824 | 841 | 1045 | 772 | 0 | 0 | 5 | 0 | 0 | 731 | 738 | 785 | 852 | 720 | 63 | 29 | 17 | 17 | 41 | 605 | 605 | 605 | 605 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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