Surf Forecasts:
Castles surf forecast from 7 Jul 2026:
- Best quality surf: Thursday 9 Jul, 3PM (local time) - 20ft (6.0m), 17s period, SE swell with cross-onshore winds.
- Most powerful swell: Friday 10 Jul, 3PM (local time) - 38ft (11.5m), 17s period, SSE swell with 77,868 kJ wave energy.
- Next surfable swell (1★+): Tuesday 7 Jul, 12PM (local time) - 5ft (1.5m), 16s 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 Tuesday (Jul 07) at 12PM. The primary swell is predicted to be 1.5m and 16s 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 11.5m 17s and forecast to arrive on Friday (Jul 10) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 8.0m 16s period and expected on Saturday (Jul 11) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Tue 7th Jul) | 5ft (1.5m) 16s |
| Best Surf | 3PM (Thu 9th Jul) | 20ft (6.0m) 17s |
| Most Powerful | 3PM (Fri 10th Jul) | 38ft (11.5m) 17s |
Table - best surf conditions forecast for Castles over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 10mm), heaviest on Thu morning. Warm (max 29°C on Tue afternoon, min 26°C on Tue night). Winds increasing (calm on Tue afternoon, near gales from the E by Thu night). | Days 4-6 Weather SummaryHeavy rain (total 61mm), heaviest during Sun night. Warm (max 29°C on Fri morning, min 27°C on Sun night). Winds decreasing (gales from the ESE on Fri afternoon, moderate winds from the SE by Sun night). | ||||||||||||||||||||
Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | |||||||||||||||
AM | 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) | ESE 13 | ESE 16 | ESE 16 | ESE 17 | ESE 16 | ESE 16 | SE 16 | SE 17 | SE 18 | SE 18 | SSE 17 | S 16 | SSE 12 | SSE 11 | SSE 11 | SSE 10 | S 10 | S 10 | S 9 | S 9 | S 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 805 | 1121 | 2162 | 4123 | 5386 | 9273 | 13031 | 19821 | 42963 | 71702 | 77868 | 63466 | 8764 | 5642 | 3261 | 2297 | 1227 | 740 | 612 | 695 | 665 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-on | cross-off | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | on | on | on |
High Tide | 11:25AM1.75m | 11:53PM1.88m | 12:40PM1.65m | 00:43AM1.90m | 2:13PM1.60m | 1:43AM1.93m | 3:50PM1.64m | 2:51AM1.98m | 5:09PM1.73m | 3:59AM2.07m | 6:10PM1.85m | 5:02AM2.16m | 7:01PM1.95m | ||||||||
Low Tide | 5:36PM0.79m | 6:30AM0.73m | 6:28PM0.95m | 7:43AM0.65m | 7:35PM1.09m | 9:00AM0.52m | 8:54PM1.18m | 10:12AM0.36m | 10:12PM1.19m | 11:15AM0.20m | 11:19PM1.14m | 12:10PM0.07m | 00:16AM1.06m | ||||||||
 | |  | | |  |  | | | |  | | | | | | | | | |  | |
 | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — |
 | — | 7:24 | — | — | 7:24 | — | — | 7:24 | — | — | 7:23 | — | — | 7:23 | — | — | 7:23 | — | — | 7:23 | — |
mm | — | — | — | — | — | 1 | 4 | 2 | 3 | 3 | 6 | 3 | 2 | 4 | 16 | 3 | 4 | 20 | 14 | 13 | 7 |
Temp °C | 28 | 29 | 28 | 28 | 29 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 29 | 29 | 27 | 26 | 28 |
Feels °C | 32 | 32 | 31 | 29 | 30 | 29 | 29 | 28 | 27 | 24 | 23 | 22 | 25 | 26 | 26 | 29 | 29 | 30 | 28 | 28 | 31 |
Swell 1 Height (m) Direction Period (s) | ESE 13 | ESE 16 | ESE 16 | ESE 17 | ESE 16 | ESE 16 | SE 16 | SE 17 | SE 18 | — | — | — | SSW 15 | SW 13 | SW 13 | WSW 11 | S 10 | S 10 | S 9 | S 9 | S 9 |
| kJ | 805 | 1121 | 2162 | 4123 | 5386 | 9273 | 13031 | 19821 | 42963 | — | — | — | 13249 | 5735 | 3369 | 657 | 1227 | 740 | 612 | 695 | 665 |
Swell 2 Height (m) Direction Period (s) | SW 9 | ESE 20 | WSW 8 | WSW 8 | WSW 8 | — | — | — | — | — | — | — | — | — | — | W 12 | SW 10 | SW 9 | SW 9 | SW 10 | SW 11 |
| kJ | 26 | 154 | 26 | 21 | 20 | — | — | — | — | — | — | — | — | — | — | 65 | 225 | 141 | 103 | 76 | 96 |
Swell 3 Height (m) Direction Period (s) | W 5 | SW 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 10 | W 8 | E 9 | ENE 9 | ENE 9 |
| kJ | 5 | 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 50 | 6 | 15 | 16 | 27 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SE 18 | SSE 17 | S 16 | SSE 12 | SSE 11 | SSE 11 | SSE 10 | ESE 7 | ESE 7 | ESE 6 | ESE 6 | E 6 |
| kJ | — | — | — | — | — | — | — | — | — | 71702 | 77868 | 63466 | 8764 | 5642 | 3261 | 2297 | 327 | 141 | 146 | 121 | 46 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 16 | 0 | 28 | 28 | 612 | 31 | 687 | 841 | 596 | 776 | 1049 | 713 | 776 | 605 | 687 | 612 | 605 | 28 | 588 | 105 | 28 |
Best forecast wave conditions in Okinawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
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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