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

48hr Weather and Surf, issued 8 am Friday 22 May 2026 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 24.1° C
(Which is 1.6°C colder than average for this time of year)

How big are the waves at Castles today?

The current surf forecast for Castles at 1PM is: 0.9m 9s primary swell from a East-southeast direction and 0.1m 10s secondary swell from a East direction (forecast issued at 08:00am May 22). An open ocean swell of 0.8m 4s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (JST) & Date	Wave Height	Wave Period
Morning (22 May)	3.5ft (1.0m)	9s
Afternoon (22 May)	3ft (0.9m)	9s
Evening (22 May)	3ft (0.9m)	9s

Table - waves today at Castles. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

	Short Range Forecast Heavy rain (total 37mm), heaviest during Fri night. Warm (max 27°C on Sat night, min 23°C on Fri afternoon). Wind will be generally light.
	Friday 22						Saturday 23								Sunday 24								Mon 25
	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	12 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	12 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	12 AM	3 AM
Rating (10 max)	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	0	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	ESE 10	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 10	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9
Wave Graph
kJ	193	189	156	153	153	153	153	144	153	153	153	149	113	113	113	115	118	129	118	124	121	119	119	119
Wind (km/h)	SW	SW	SW	SW	SW	SSW	SSW	WSW	SW	SSW	SW	SW	SW	SSW	SSW	SSW	SW	WSW	WSW	WSW	SW	SW	SW	SSW
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross	cross	cross	cross-off	cross	cross	cross	cross-off	cross	cross-on	cross	cross	cross	cross	cross-on	cross-on	cross	cross-off	cross-off	cross-off	cross	cross	cross	cross-on
High Tide			10:21AM1.79m					00:33AM1.61m			11:37AM1.65m					1:37AM1.60m				1:14PM1.56m				2:33AM1.63m
Low Tide	4:43AM1.05m				5:31PM0.37m				5:55AM1.06m					6:37PM0.55m				7:21AM0.99m				7:48PM0.68m


	5:39	—	—	—	—	—	—	5:39	—	—	—	—	—	—	—	5:39	—	—	—	—	—	—	—	5:39
	—	—	—	—	7:10	—	—	—	—	—	—	—	7:12	—	—	—	—	—	—	—	7:12	—	—	7:13
mm	1	1	1	3	3	—	—	4	3	2	1	3	3	1	—	1	3	1	—	1	1	1	2	2
Temp °C	25	26	25	24	23	24	25	24	24	25	26	24	25	25	25	26	27	27	27	27	27	27	26	26
Feels °C	27	28	26	26	22	25	26	25	26	27	27	25	26	27	27	28	28	29	29	29	30	31	29	29
Swell 1 Height (m) Direction Period (s)	ESE 10	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	W 6	W 6	WSW 6	WSW 6	ESE 10	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9
kJ	193	189	156	153	153	153	153	144	153	153	153	149	113	75	63	85	70	129	118	124	121	119	119	119
Swell 2 Height (m) Direction Period (s)	E 11	E 10	E 10	E 10	E 10	E 10	E 10	E 9	—	N 6	N 6	NNW 8	NNW 8	ESE 9	ESE 9	ESE 9	ESE 9	NNW 7	W 6	W 6	W 7	W 7	W 7	NE 10
kJ	2	2	2	2	2	2	2	2	—	1	1	6	6	113	113	115	118	4	27	18	26	23	14	48
Swell 3 Height (m) Direction Period (s)	NE 11	W 7	—	—	—	W 7	NE 10	NE 9	—	N 9	N 8	E 9	—	NNW 7	NNW 7	NNW 7	NNW 7	N 7	N 7	N 7	ENE 11	NE 10	NE 10	W 6
kJ	5	1	—	—	—	1	4	3	—	2	1	2	—	5	5	5	4	4	1	1	12	27	35	13
Wind waves Height (m) Direction Period (s)	WSW 6	WSW 6	WSW 4	WSW 4	WSW 5	WSW 5	WSW 5	SW 5	WSW 5	WSW 5	WSW 5	WSW 5	WSW 6	SW 6	SW 5	SW 5	—	WSW 6	SSW 4	SW 6	SW 6	SW 6	SW 6	SW 6
kJ	40	31	18	32	25	27	33	35	45	42	44	86	145	36	30	23	—	55	10	35	33	21	20	16
Nearest Offshore or Glassy	Yonabaru Okinawa	Ikei Island Okinawa	Yonabaru Okinawa	Castles Okinawa	Aha Rivermouth Okinawa	Yonabaru Okinawa	Aha Rivermouth Okinawa	Ikei Island Okinawa	Yonabaru Okinawa	Yonabaru Okinawa	Aha Rivermouth Okinawa	Fulung Beach North	Ikei Island Okinawa	Yonabaru Okinawa	Yonabaru Okinawa	Steps Okinawa	Yonabaru Okinawa	Castles Okinawa	Castles Okinawa	Castles Okinawa	Yonabaru Okinawa	Yonabaru Okinawa	Yonabaru Okinawa	Yonabaru Okinawa
Rating (10 max)	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Distance (km)	16	48	16	0	94	16	94	48	16	16	94	588	48	16	16	28	16	0	0	0	16	16	16	16
Best forecast wave conditions in Okinawa	Ko-Chan (Hedo Point)	Ko-Chan (Hedo Point)	Ada	Ko-Chan (Hedo Point)	Ko-Chan (Hedo Point)	Ko-Chan (Hedo Point)	Ko-Chan (Hedo Point)	Ko-Chan (Hedo Point)	Ko-Chan (Hedo Point)	Ko-Chan (Hedo Point)	Ko-Chan (Hedo Point)		Aha Rivermouth	Ko-Chan (Hedo Point)	Ko-Chan (Hedo Point)	Ko-Chan (Hedo Point)	Ko-Chan (Hedo Point)	Ko-Chan (Hedo Point)	Ko-Chan (Hedo Point)	Ko-Chan (Hedo Point)	Ko-Chan (Hedo Point)	Ko-Chan (Hedo Point)	Ko-Chan (Hedo Point)	Ko-Chan (Hedo Point)
Rating (10 max)	2	1	1	1	1	1	1	1	1	1	1		1	1	1	1	1	1	1	1	1	1	1	2
Best forecast wave conditions in Japan	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Kaifu Rivermouth Shikoku	Kaifu Rivermouth Shikoku	Omaezaki Shizuoka	Niyodo Rivermouth Shikoku	Nunoshima Shikoku	Niyodo Rivermouth Shikoku	Fukuoka Kyu Shu	Fukuoka Kyu Shu	Uchiboso Chiba	Yasuda Rivermouth Shikoku	Yasuda Rivermouth Shikoku	Nagata Kyu Shu	Shida Chiba	Dragons Leaf Kyu Shu	Okuragahama Kyu Shu	Okuragahama Kyu Shu	Hashikui Bay Shikoku	Yasuda Rivermouth Shikoku	Yasuda Rivermouth Shikoku	Okuragahama Kyu Shu	Takegashima Shikoku	Takegashima Shikoku
Rating (10 max)	2	2	1	1	1	1	1	1	1	1	1	4	4	1	2	3	4	4	3	3	4	3	3	3
Header Global	Tahai Chile	Barra de Guaratiba Brazil	Trial Harbour Australia	Trial Harbour Australia	Trial Harbour Australia	Trial Harbour Australia	Trial Harbour Australia	Easter Reef Australia	Arrawarra Australia	Dunedin - Bobs Beach New Zealand	Saint Leu Reunion	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Cannibal Bay New Zealand	Papatowai New Zealand	Etang-Sale Reunion	Chameau Mauritius	Chameau Mauritius	Chameau Mauritius	Chameau Mauritius	Chameau Mauritius
Rating (10 max)	5	4	5	7	7	7	6	5	7	5	5	6	7	8	7	6	5	5	5	5	5	6	5	5

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

Latest Updates

Ben Mondy

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Castles Surf Forecast

Castles surfForecast / Okinawa / Japan

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