Castles Beach Surf Forecast

/ HAW – Oahu (122 breaks) / Hawaii (267 breaks) /

USA (1297 breaks) / Lat Long: (21.42° N 157.74° W)

Surf Forecasts:

Castles Beach surfForecast / HAW – Oahu / USA

48hr Weather and Surf, issued 1 am Monday 17 Nov 2025 HST

Forecast update in hr min s Forecast update imminent

Castles Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Castles Beach sea temperature is 25.9° C
(Which is normal for this time of year)

How big are the waves at Castles Beach today?

The current surf forecast for Castles Beach at 3AM is: 1.2m 7s primary swell from a East direction and 0.8m 8s secondary swell from a Northeast direction (forecast issued at 01:00am November 17). An open ocean swell of 0.6m 13s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (HST) & Date	Wave Height	Wave Period
Morning (17 Nov)	4ft (1.2m)	7s
Afternoon (17 Nov)	3.5ft (1.1m)	6s
Evening (17 Nov)	3ft (0.9m)	6s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

		Monday 17								Tuesday 18								Wednesday 19
	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM
Rating (10 max)	0	0	0	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 (?)	ENE	E	E	E	E	E	E	ENE	E	E	E	E	ENE	E	E	E	ENE	ENE	ENE	ENE	E	E	E	E
Period(s) (?)	8	7	7	7	7	6	7	7	6	6	7	7	7	7	6	7	6	6	6	7	8	8	9	8
Wave Graph (?)
kJ (?)	215	127	181	152	127	85	106	75	60	86	93	62	63	92	76	89	109	171	263	851	1398	1578	1508	1412
Wind (km/h)	E	ESE	E	E	E	E	E	E	E	ENE	ENE	ENE	NE	ENE	E	ENE	ENE	ENE	ENE	E	E	E	E	E
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	on	on	on	on	on	on	on	on	on	on	on	cross- on	cross- on	on	on	cross- on	cross- on	cross- on	on	on	on	on	on	on
High Tide / height (m)		1:28AM 0.76				12:07PM 0.55				1:57AM 0.81				12:32PM 0.52					2:26AM 0.84			12:56PM 0.49
Low Tide / height (m)				7:37AM 0.40				6:38PM 0.10					8:20AM 0.39			7:00PM 0.07					9:00AM 0.39			7:25PM 0.06

		Monday 17								Tuesday 18								Wednesday 19
Sunrise	-	-	-	6:43	-	-	-	-	-	-	-	6:43	-	-	-	-	-	-	-	6:43	-	-	-	-
Sunset	-	-	-	-	-	-	5:47	-	-	-	-	-	-	-	5:47	-	-	-	-	-	-	-	5:47	-

Rain (mm)	1	1	1	-	-	-	-	-	-	-	-	1	1	1	-	-	1	2	2	4	3	1	-	1
Temp. °C	25	24	24	24	25	25	25	25	25	24	24	24	24	25	24	22	22	23	23	24	24	24	24	24
Feels °C (?)	24	23	23	23	24	25	25	25	25	26	25	24	24	23	22	19	19	20	20	20	19	19	20	21

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

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 Beach 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.