Buy Less, Surf More This Black Friday
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Castles surfForecast / Okinawa / Japan
12 Day Weather and Surf, issued 2 am Friday 05 Dec 2025 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
25.7° C
(Which is 1.2°C warmer than normal for this time of year)Best Forecast Surf Conditions for Castles this week:
The surf forecast for Castles over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Dec 11) at 9AM. The primary swell is predicted to be 1.8m and 8s period with a secondary swell of 0.2m and 6s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Castles in the next 12 days are 2.4m 9s and forecast to arrive on Friday (Dec 12) 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 1.4m 5s period and expected on Friday (Dec 05) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Thu 11th Dec) | 6ft (1.8m) 8s |
| Best Surf | 9AM (Fri 12th Dec) | 8ft (2.4m) 9s |
| Most Powerful | 9AM (Fri 12th Dec) | 8ft (2.4m) 9s |
Table - best surf conditions forecast for Castles over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Mostly dry. Warm (max 22°C on Sun morning, min 18°C on Fri morning). Mainly fresh winds. | Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Wed night. Warm (max 22°C on Wed morning, min 20°C on Mon morning). Mainly fresh winds. | ||||||||||||||||||||
Friday 05 | Saturday 06 | Sunday 07 | Monday 08 | Tuesday 09 | Wednesday 10 | Thursday 11 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 6 | 9 | 9 | 9 | 9 | 9 | 8 | 9 | 9 | 8 | 9 | 8 | 9 | 10 | 9 | 9 | 8 | 9 | 9 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 202 | 62 | 62 | 230 | 283 | 450 | 594 | 542 | 524 | 494 | 493 | 632 | 647 | 671 | 625 | 593 | 691 | 653 | 472 | 495 | 431 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross- on | cross | cross | cross- off | cross | cross | cross | cross- on | cross- on | cross- on | cross- off | cross- off | cross- off |
High Tide / height (m) | 6:31PM 2.13 | 8:11AM 1.89 | 7:16PM 2.12 | 9:01AM 1.84 | 8:03PM 2.06 | 9:50AM 1.77 | 8:51PM 1.96 | 10:39AM 1.69 | 9:42PM 1.82 | 11:30AM 1.62 | 10:41PM 1.66 | 12:21PM 1.58 | 11:51PM 1.51 | ||||||||
Low Tide / height (m) | 12:48PM 0.78 | 1:27AM -0.27 | 1:34PM 0.81 | 2:15AM -0.24 | 2:21PM 0.84 | 3:03AM -0.15 | 3:09PM 0.87 | 3:51AM 0.00 | 4:01PM 0.89 | 4:40AM 0.19 | 4:59PM 0.90 | 5:31AM 0.38 | 6:05PM 0.87 | ||||||||
Friday 05 | Saturday 06 | Sunday 07 | Monday 08 | Tuesday 09 | Wednesday 10 | Thursday 11 | |||||||||||||||
| Sunrise | 7:01 | - | - | 7:01 | - | - | 7:01 | - | - | 7:03 | - | - | 7:03 | - | - | 7:03 | - | - | 7:05 | - | - |
| Sunset | - | 5:37 | - | - | 5:37 | - | - | 5:37 | - | - | 5:37 | - | - | 5:37 | - | - | 5:37 | - | - | 5:37 | - |
 |  |  |  | | | | |  | | | | | | | | |  |  | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | 1 | - | - |
| Temp. °C | 19 | 20 | 20 | 20 | 21 | 21 | 22 | 22 | 22 | 20 | 21 | 21 | 21 | 20 | 21 | 22 | 22 | 22 | 23 | 23 | 22 |
| Feels °C (?) | 13 | 14 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 15 | 16 | 16 | 15 | 14 | 15 | 16 | 17 | 20 | 21 | 21 | 21 |
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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 12 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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