Surf Forecasts:
Castles surf forecast from 23 Jun 2026:
- Best quality surf: Friday 26 Jun, 12AM (local time) - 20ft (6.0m), 13s period, S swell with onshore winds.
- Most powerful swell: Friday 26 Jun, 9AM (local time) - 23ft (7.0m), 13s period, S swell with 16,916 kJ wave energy.
- Next surfable swell (1★+): Friday 26 Jun, 12AM (local time) - 20ft (6.0m), 13s period with S 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 Friday (Jun 26) at 12AM. The primary swell is predicted to be 6.0m and 13s period with a secondary swell of 5.5m and 13s. Another secondary swell of 0.4m and 10s is also forecast. The wind is predicted to be onshore as the swell arrives.
The most powerful waves expected at Castles in the next 16 days are 7.0m 13s and forecast to arrive on Friday (Jun 26) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 6.0m 13s period and expected on Friday (Jun 26) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 26th Jun) | 20ft (6.0m) 13s |
| Best Surf | 12AM (Fri 26th Jun) | 20ft (6.0m) 13s |
| Most Powerful | 9AM (Fri 26th Jun) | 23ft (7.0m) 13s |
Table - best surf conditions forecast for Castles over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 92mm), heaviest during Fri morning. Warm (max 28°C on Tue night, min 27°C on Tue night). Winds increasing (light winds from the SE on Tue night, stormy winds from the SE by Thu night). | Days 5-7 Weather SummaryHeavy rain (total 36mm), heaviest during Sun morning. Warm (max 28°C on Mon afternoon, min 26°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tue 30 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | S 14 | S 14 | S 14 | ESE 11 | SE 11 | NE 10 | S 13 | S 13 | ESE 10 | NNE 8 | ESE 10 | ESE 10 | S 7 | ESE 8 | ESE 8 | SE 9 | SE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2785 | 3305 | 5056 | 46 | 30 | 16 | 11616 | 16916 | 2418 | 96 | 68 | 107 | 74 | 46 | 41 | 23 | 21 | 55 | 71 | 73 | 70 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | on | on | on | on | cross | off | cross-off | off | cross-off | glassy | cross | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 2:07AM1.77m | 3:37PM1.54m | 2:55AM1.80m | 4:49PM1.59m | 3:41AM1.85m | 5:45PM1.65m | 4:26AM1.91m | 6:29PM1.72m | 5:07AM1.96m | 7:06PM1.78m | 5:47AM2.01m | 7:40PM1.83m | 6:25AM2.04m | ||||||||
Low Tide | 9:00AM0.71m | 8:48PM1.10m | 10:00AM0.59m | 9:48PM1.16m | 10:50AM0.47m | 10:41PM1.18m | 11:34AM0.37m | 11:28PM1.17m | 12:13PM0.28m | 00:10AM1.14m | 12:50PM0.21m | 00:49AM1.11m | 1:25PM0.18m | ||||||||
 |  | |  | |  | |  | | | |  | | | |  |  | | | | | |
 | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — | 5:39 | — | — | 5:39 | — | — | 5:39 | — |
 | 7:23 | — | 7:23 | — | — | 7:23 | — | — | 7:23 | — | — | 7:24 | — | — | 7:24 | — | — | 7:24 | — | — | 7:24 |
mm | — | — | — | 3 | — | 1 | 26 | 58 | 4 | 5 | 1 | — | 11 | 12 | 5 | 1 | — | 1 | 2 | 2 | 2 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 27 | 27 | 28 | 27 | 28 | 28 |
Feels °C | 32 | 29 | 29 | 29 | 26 | 25 | 22 | 31 | 23 | 27 | 31 | 31 | 32 | 25 | 28 | 30 | 30 | 32 | 31 | 31 | 32 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 14 | SSW 14 | SSW 14 | SSW 14 | S 13 | SSW 13 | SSW 12 | SSW 9 | SSW 9 | SSW 8 | SW 8 | ESE 8 | ESE 8 | SW 7 | SW 7 | WSW 7 | SW 7 | ESE 9 | ESE 9 |
| kJ | 2785 | 3305 | 5056 | 6278 | 9420 | 7866 | 10619 | 11893 | 4811 | 374 | 324 | 264 | 120 | 46 | 41 | 168 | 126 | 66 | 47 | 73 | 70 |
Swell 2 Height (m) Direction Period (s) | SE 12 | SE 12 | NE 10 | ESE 11 | SE 11 | NE 10 | NE 10 | NE 10 | ESE 10 | NNE 8 | NW 7 | ESE 10 | ESE 9 | NNE 8 | ESE 16 | ESE 7 | SE 9 | ESE 9 | ESE 9 | WSW 7 | SW 7 |
| kJ | 35 | 35 | 16 | 46 | 30 | 16 | 26 | 25 | 2418 | 96 | 91 | 107 | 70 | 6 | 25 | 21 | 21 | 55 | 71 | 36 | 26 |
Swell 3 Height (m) Direction Period (s) | NE 12 | NE 10 | NE 10 | NE 10 | SE 11 | — | — | — | E 18 | SE 11 | ESE 10 | NNW 7 | NW 5 | ESE 16 | NE 8 | SE 9 | ESE 7 | ESE 15 | ESE 15 | E 15 | ESE 14 |
| kJ | 21 | 17 | 26 | 15 | 30 | — | — | — | 6 | 30 | 68 | 54 | 7 | 25 | 3 | 23 | 10 | 21 | 21 | 17 | 21 |
Wind waves Height (m) Direction Period (s) | SE 8 | ESE 7 | — | — | — | — | S 13 | S 13 | NNW 6 | WNW 6 | — | — | S 7 | SW 8 | SW 8 | — | — | S 5 | S 5 | S 5 | S 6 |
| kJ | 132 | 86 | — | — | — | — | 11616 | 16916 | 477 | 263 | — | — | 74 | 754 | 582 | — | — | 20 | 14 | 8 | 15 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 588 | 731 | 697 | 596 | 805 | 713 | 596 | 596 | 596 | 16 | 0 | 0 | 0 | 588 | 596 | 588 | 588 | 28 | 28 | 48 | 16 |
Best forecast wave conditions in Okinawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Castles surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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