Castles Surf Forecast

/ Okinawa (32 surf breaks) /

Japan (129 surf breaks) / Lat Long: (26.07° N 127.68° E)

Surf Forecasts:

Castles surfForecast / Okinawa / Japan

12 Day Weather and Surf, issued 2 am Thursday 16 Oct 2025 JST

Forecast 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 29.5° C
(Which is 2.4°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Castles this week:

The most powerful waves expected at Castles in the next 12 days are 2.0m 9s and forecast to arrive on Wednesday (Oct 22) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 10s period and expected on Tuesday (Oct 21) at 12AM.

Wave Type	Time (JST) & Date	Wave Height & Period
Next good surf (1 star+)	-	-
Best Surf	-	-
Most Powerful	9PM (Wed 22nd Oct)	6.5ft (2.0m) 9s

Table - best surf conditions forecast for Castles over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Light rain (total 4mm), mostly falling on Thu afternoon. Warm (max 29°C on Thu afternoon, min 28°C on Thu morning). Wind will be generally light.									Days 3-6 Weather Summary Heavy rain (total 42mm), heaviest during Sun night. Warm (max 28°C on Sun morning, min 24°C on Mon night). Mainly fresh winds.
	Thursday 16			Friday 17			Saturday 18			Sunday 19			Monday 20			Tuesday 21			Wednesday 22
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	NE	ESE	E	E	E	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	NE	E
Period(s) (?)	10	6	5	6	6	6	7	7	8	8	8	8	8	8	8	8	8	8	8	7	9
Wave Graph (?)
kJ (?)	25	28	65	76	83	98	148	143	254	287	280	215	209	215	187	161	165	165	136	240	646
Wind (km/h)	ESE	ENE	E	ENE	E	E	E	E	E	E	E	E	E	E	E	SE	ESE	ESE	E	E	E
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	on	on	on	cross- on	cross- on	cross- on
High Tide / height (m)		4:24PM 1.66		3:47AM 1.69	4:58PM 1.75		4:51AM 1.80	5:26PM 1.84		5:39AM 1.90	5:52PM 1.92		6:20AM 1.97		6:17PM 1.99	6:57AM 1.99		6:42PM 2.04	7:32AM 1.97		7:05PM 2.06
Low Tide / height (m)	9:20AM 0.64		9:59PM 1.08	10:22AM 0.61		10:49PM 0.86	11:08AM 0.60		11:28PM 0.65	11:45AM 0.60		12:03AM 0.47		12:18PM 0.62	12:36AM 0.33		12:48PM 0.66	1:08AM 0.23		1:16PM 0.72	1:40AM 0.19

	Thursday 16			Friday 17			Saturday 18			Sunday 19			Monday 20			Tuesday 21			Wednesday 22
Sunrise	6:28	-	-	6:28	-	-	6:28	-	-	6:28	-	-	6:30	-	-	6:30	-	-	6:31	-	-
Sunset	-	6:00	-	-	6:00	-	-	5:59	-	-	5:58	-	-	5:57	-	-	5:55	-	-	5:54	-

Rain (mm)	-	2	1	-	-	-	-	-	1	1	2	12	3	2	9	3	4	6	-	-	4
Temp. °C	28	29	28	28	28	28	28	29	28	28	28	27	27	25	25	24	25	25	27	27	27
Feels °C (?)	31	32	29	29	28	28	30	31	29	28	29	28	25	22	22	23	24	25	28	27	26

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Okinawa

Wind Update Continuing clean conditions at Castles (light winds from the E at Naha Airport 11 km from Castles). 0.5m 5s windswell from the ESE with a 0.3m 10s swell from the ENE and a 0.2m 7s swell from the ESE. 3 swells combining to make bigger set waves.
1 hour 11 minutes ago Castles

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1 h 11 min ago

7 km/h

Clean

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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 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.