Surf Forecasts:
Castles surf forecast from 15 Nov 2026:
- Best quality surf: Tuesday 24 Nov, 6PM (local time) - 5ft (1.6m), 9s period, SE swell with offshore winds.
- Most powerful swell: Tuesday 24 Nov, 9AM (local time) - 6ft (1.9m), 9s period, SE swell with 562 kJ wave energy.
- Next surfable swell (1★+): Monday 16 Nov, 3AM (local time) - 3ft (0.9m), 8s period with ESE swell.
Best Forecast Surf Conditions for Castles this week:
The surf forecast for Castles over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Nov 16) at 3AM. The primary swell is predicted to be 0.9m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Castles in the next 16 days are 1.9m 9s and forecast to arrive on Tuesday (Nov 24) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 8s period and expected on Friday (Nov 20) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 16th Nov) | 3ft (0.9m) 8s |
| Best Surf | 6PM (Tue 24th Nov) | 5ft (1.6m) 9s |
| Most Powerful | 9AM (Tue 24th Nov) | 6ft (1.9m) 9s |
Table - best surf conditions forecast for Castles over the next 16 days.
Short Range ForecastLight rain (total 2mm), mostly falling on Sun afternoon. Warm (max 24°C on Sun afternoon, min 22°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Thu morning. Warm (max 23°C on Wed afternoon, min 17°C on Thu afternoon). Winds decreasing (fresh winds from the NNW on Thu night, light winds from the NNE by Fri night). | |||||||||||||||||||
Sun 15 | Monday 16 | Tuesday 17 | Wednesday 18 | Thursday 19 | Friday 20 | Saturday 21 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | E 8 | ESE 8 | ESE 8 | E 9 | ESE 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 11 | E 11 | E 11 | E 11 | E 11 | E 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 76 | 99 | 81 | 60 | 147 | 108 | 96 | 96 | 98 | 102 | 98 | 96 | 94 | 72 | 60 | 60 | 58 | 58 | 58 | 34 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross |
High Tide | 9:33PM1.70m | 11:45AM1.51m | 10:24PM1.60m | 12:39PM1.51m | 11:39PM1.51m | 1:35PM1.55m | 1:17AM1.49m | 2:27PM1.62m | 2:48AM1.54m | 3:14PM1.72m | 3:59AM1.66m | 3:58PM1.84m | ||||||||
Low Tide | 4:04PM1.11m | 4:50AM0.47m | 4:59PM1.12m | 5:40AM0.56m | 6:13PM1.08m | 6:42AM0.65m | 7:36PM0.97m | 7:51AM0.69m | 8:47PM0.79m | 8:57AM0.71m | 9:44PM0.56m | 9:55AM0.71m | 10:35PM0.33m | |||||||
 |  |  |  | | | | | | |  |  | | |  | | | | |  | |
 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — |
 | 5:39 | — | — | 5:38 | — | — | 5:38 | — | — | 5:38 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — |
mm | 2 | — | — | — | — | — | — | — | — | — | — | 3 | 1 | — | — | — | — | — | — | — |
Temp °C | 24 | 23 | 24 | 24 | 23 | 23 | 24 | 22 | 23 | 23 | 22 | 18 | 19 | 19 | 18 | 19 | 18 | 19 | 19 | 20 |
Feels °C | 23 | 22 | 24 | 25 | 24 | 25 | 25 | 23 | 23 | 22 | 19 | 14 | 14 | 14 | 12 | 14 | 15 | 17 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | E 8 | ESE 8 | ESE 8 | E 9 | ESE 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 11 | E 11 | NNW 10 | NNW 9 | NNW 9 | NNW 8 |
| kJ | 76 | 99 | 81 | 60 | 147 | 108 | 96 | 96 | 98 | 102 | 98 | 96 | 94 | 72 | 60 | 60 | 258 | 154 | 99 | 58 |
Swell 2 Height (m) Direction Period (s) | SSW 6 | SSW 6 | NNW 6 | NW 6 | NNW 6 | NNW 7 | NNW 7 | NE 8 | NE 8 | NE 8 | ESE 6 | — | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 11 | E 11 | E 11 | E 10 |
| kJ | 43 | 29 | 54 | 34 | 27 | 19 | 18 | 3 | 10 | 9 | 4 | — | 8 | 8 | 8 | 7 | 58 | 58 | 58 | 34 |
Swell 3 Height (m) Direction Period (s) | SE 7 | SE 10 | SW 5 | SE 7 | SW 5 | SE 10 | NE 7 | E 9 | E 9 | — | NE 6 | — | — | — | NE 12 | E 12 | ENE 4 | ESE 9 | SE 9 | SE 9 |
| kJ | 16 | 4 | 7 | 23 | 1 | 4 | 2 | 2 | 2 | — | 2 | — | — | — | 6 | 3 | 4 | 8 | 12 | 12 |
Wind waves Height (m) Direction Period (s) | WNW 5 | NNW 6 | NE 4 | ENE 4 | — | — | — | NNW 6 | NNW 6 | NNW 6 | NNW 7 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 9 | NE 5 | NE 4 | ENE 4 | NE 3 |
| kJ | 14 | 51 | 2 | 1 | — | — | — | 15 | 26 | 26 | 99 | 196 | 270 | 267 | 344 | 336 | 11 | 4 | 1 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 688 | 688 | 0 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 688 | 714 | 697 | 720 | 1330 | 1012 | 0 | 0 | 63 | 63 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Information about the Castles Surf forecast
The above surf forecast table for Castles provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Castles can be found by selecting the local surf guide option on the grey menu. Our Castles surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Castles) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Castles may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Castles is 6 km (4 miles) from the city of Itoman. If you plan a holiday in Okinawa, look for hotels and other accommodation in Itoman. Itoman has rooms for a wide range of budgets as well as car hire and transport links.
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