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Surf Forecasts:
Castles surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 pm Thursday 23 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 normal for this time of year)How big are the waves at Castles today?
The current surf forecast for Castles at 2AM is: 0.6m 10s primary swell from a East-northeast direction (forecast issued at 08:00pm April 23). An open ocean swell of 1.3m 6s is not directed at the surf break, a second open ocean swell of 0.6m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 Apr) | 1.5ft (0.5m) | 10s |
| Afternoon (24 Apr) | 1.5ft (0.5m) | 10s |
| Evening (24 Apr) | 1.5ft (0.5m) | 7s |
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 Thu night. Warm (max 23°C on Thu night, min 20°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||||||||
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 | 6 AM | 9 AM | 12 PM | 3 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | E 10 | SSE 6 | N 7 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | NE 10 | NE 9 | NE 9 | NE 9 | NE 9 | NE 10 | |
80 | 82 | 83 | 85 | 60 | 60 | 59 | 52 | 18 | 27 | 64 | 108 | 86 | 66 | 64 | 64 | 48 | 31 | 32 | 52 | 68 | 86 | 103 | 134 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | off | off | off | off | off | off | |
High Tide | 1:07AM1.42m | 11:27AM1.58m | 2:38AM1.44m | 1:24PM1.50m | 3:40AM1.51m | |||||||||||||||||||
Low Tide | 5:44PM0.32m | 5:51AM1.13m | 7:07PM0.46m | 7:45AM1.10m | 8:36PM0.52m | 9:18AM0.93m | ||||||||||||||||||
 |  |  |  |  |  | | |  | | |  | | | | | | | | | | | |  | |
 | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — |
 | 6:55 | — | — | — | — | — | — | — | 6:55 | — | — | — | — | — | — | — | 6:57 | — | — | — | — | — | — | 6:57 |
2 | 1 | 1 | — | — | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 24 | 23 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 20 | 20 | 21 | 21 | 21 |
24 | 25 | 23 | 22 | 21 | 22 | 20 | 20 | 20 | 20 | 19 | 18 | 18 | 18 | 19 | 19 | 19 | 20 | 20 | 19 | 19 | 20 | 20 | 19 | |
Swell 1 Height (m) Direction Period (s) | ENE 10 | ENE 10 | SW 6 | SW 6 | SW 7 | SSW 7 | SSW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SSW 7 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | NE 9 | NE 9 | NE 9 | NE 9 | NE 10 |
 kJ | 80 | 82 | 156 | 132 | 131 | 131 | 120 | 79 | 55 | 36 | 36 | 37 | 50 | 66 | 64 | 64 | 48 | 31 | 31 | 52 | 68 | 86 | 103 | 134 |
Swell 2 Height (m) Direction Period (s) | SE 13 | SE 13 | ENE 10 | ENE 10 | NW 5 | ENE 10 | ENE 10 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | ENE 10 | SSW 6 | SSE 6 | S 6 | SSW 6 | S 6 | NE 10 | N 8 | NNW 8 | S 5 | S 5 | ESE 11 |
| kJ | 43 | 43 | 83 | 85 | 18 | 60 | 59 | 17 | 18 | 17 | 12 | 10 | 31 | 31 | 10 | 10 | 10 | 9 | 32 | 31 | 19 | 2 | 2 | 11 |
Swell 3 Height (m) Direction Period (s) | N 6 | — | SE 13 | ESE 13 | ENE 10 | W 8 | W 7 | E 10 | N 7 | N 7 | ENE 10 | ENE 10 | ESE 12 | NW 5 | SW 6 | ENE 9 | ENE 10 | ENE 10 | S 5 | S 5 | S 5 | ESE 11 | ESE 11 | — |
| kJ | 1 | — | 42 | 16 | 60 | 28 | 17 | 52 | 28 | 27 | 32 | 31 | 14 | 7 | 10 | 17 | 18 | 19 | 5 | 5 | 4 | 11 | 11 | — |
Wind waves Height (m) Direction Period (s) | SW 6 | SW 6 | SW 6 | NNW 4 | — | NW 6 | NW 6 | NNW 7 | NNW 4 | NNW 4 | N 8 | N 8 | N 8 | — | — | — | — | — | — | — | — | NNW 7 | NNW 7 | NW 7 |
| kJ | 223 | 196 | 213 | 8 | — | 34 | 32 | 61 | 16 | 14 | 64 | 108 | 86 | — | — | — | — | — | — | — | — | 21 | 20 | 24 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 16 | 0 | 0 | 5 | 0 | 0 | 0 | 5 | 772 | 772 | 772 | 50 | 605 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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