Castles Beach 48 hour detailed Surf Forecast

Lat Long: 21.42° N 157.74° W

Issued: 7 am 31 Oct 2026 (local time)

Forecast update in hr min

Today's Castles Beach sea temperature is

26.6°C

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

Surf Forecasts:

How big are the waves at Castles Beach today (31 Oct):

Morning surf: Morning surf (31 Oct, local time) - 4ft (1.2m), 9s period with NNE swell.
Afternoon surf: Afternoon surf (31 Oct, local time) - 3.5ft (1.1m), 9s period with NE swell.
Evening surf: Evening surf (31 Oct, local time) - 3.5ft (1.1m), 8s period with NE swell.

The current surf forecast for Castles Beach at 2PM is: 1.1m 9s primary swell from a Northeast direction and 0.5m 13s secondary swell from a South direction, 0.8m 6s secondary swell from a East direction (forecast issued at 07:00am October 31). The wind direction is predicted to be onshore.

Time (HST) & Date	Wave Height	Wave Period
Morning (31 Oct)	4ft (1.2m)	9s
Afternoon (31 Oct)	3.5ft (1.1m)	9s
Evening (31 Oct)	3.5ft (1.1m)	8s

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

	Short Range Forecast Light rain (total 7mm), mostly falling on Sat morning. Warm (max 25°C on Sat morning, min 24°C on Sun morning). Winds increasing (light winds from the E on Sat night, strong winds from the NE by Sun night).
	Saturday 31							Sunday 1								Monday 2
	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	11 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
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	NNE 9	NNE 9	NNE 9	NE 9	NE 9	NE 8	NE 8	NE 8	NE 8	S 16	S 15	NE 8	NE 8	NE 5	NE 6	NNE 6	NNE 8	NNE 8	NE 8	NNE 9	NE 8	NE 8	NE 8
Wave Graph
kJ	211	211	207	174	170	162	135	171	98	119	116	126	123	74	177	286	607	829	532	815	604	671	604
Wind (km/h)	ENE	E	E	E	ENE	E	E	ENE	ENE	NE	NE	NNE	NNE	NE	NE	NE	NE	NE	ENE	ENE	ENE	ENE	ENE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	on	on	on	on	on	on	on	on	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
High Tide		7:29AM0.79m									8:44AM0.76m				8:54PM0.34m				9:47AM0.74m
Low Tide								11:41PM0.20m						5:33PM0.32m		1:28AM0.29m						5:29PM0.28m


	6:33	—	—	—	—	—	—	—	6:33	—	—	—	—	—	—	—	6:33	—	—	—	—	—	—
	—	—	—	—	5:54	—	—	—	—	—	—	—	5:53	—	—	—	—	—	—	—	5:53	—	—
mm	—	—	1	1	1	1	—	—	—	1	1	—	—	—	—	1	—	—	—	—	—	—	—
Temp °C	24	25	25	25	25	25	25	25	25	24	25	25	25	24	24	24	24	24	24	24	24	24	24
Feels °C	25	26	26	26	26	26	27	27	27	25	26	24	23	21	21	20	18	19	19	19	19	19	19
Swell 1 Height (m) Direction Period (s)	NNE 9	NNE 9	NNE 9	NE 9	NE 9	NE 8	NW 21	NW 20	NNW 19	NNW 18	NW 18	NW 17	NW 16	NW 16	NNW 16	NNW 16	NNW 15	NNW 15	NNW 15	NNW 14	NNW 14	NNW 14	NNW 14
kJ	211	211	207	174	170	162	983	1422	1632	1760	1777	1756	1672	1631	1498	1322	1222	1102	1208	1072	1159	955	915
Swell 2 Height (m) Direction Period (s)	S 13	S 13	S 13	S 13	S 14	NW 21	NE 8	NE 8	NE 8	NE 8	S 15	E 12	E 11	E 11	S 14	S 14	S 14	E 11	NNW 10	E 11	E 11	S 12	S 13
kJ	87	85	85	87	91	454	135	171	98	98	116	43	40	38	62	36	36	21	169	21	20	12	13
Swell 3 Height (m) Direction Period (s)	E 12	E 12	E 12	E 12	NW 22	S 14	S 15	E 12	E 6	S 16	E 12	S 13	S 13	S 14	E 11	E 11	E 11	S 14	E 11	S 12	S 12	S 18	S 18
kJ	48	47	47	46	231	103	107	44	21	119	44	56	55	58	37	21	21	34	21	27	27	6	6
Wind waves Height (m) Direction Period (s)	E 6	E 6	E 6	E 6	E 6	E 6	E 6	E 6	E 5	E 6	NE 8	NE 8	NE 8	NE 5	NE 6	NNE 6	NNE 8	NNE 8	NE 8	NNE 9	NE 8	NE 8	NE 8
kJ	39	48	39	38	39	31	30	30	14	15	109	126	123	74	177	286	607	829	532	815	604	671	604
Nearest Offshore or Glassy	Ala Moana Courts HAW - Oahu	Ala Moana Courts HAW - Oahu	Ko Olina Resort HAW - Oahu	Ala Moana Courts HAW - Oahu	Ala Moana Courts HAW - Oahu	Ala Moana Courts HAW - Oahu	Ala Moana Courts HAW - Oahu	Ala Moana Courts HAW - Oahu	Ala Moana Courts HAW - Oahu	Ala Moana Courts HAW - Oahu	Ala Moana Courts HAW - Oahu	Keaulanas HAW - Oahu	Mala wharf HAW - Maui	Mala wharf HAW - Maui	Ko Olina Resort HAW - Oahu	La Perouse Bay/The Dumps HAW - Maui	Infinities HAW - Kaua'i	Infinities HAW - Kaua'i	Infinities HAW - Kaua'i	Harbors HAW - Maui	Shark Pit HAW - Maui	Pokai Bay HAW - Oahu	Maili Point HAW - Oahu
Rating (10 max)	2	2	2	2	2	2	2	1	1	1	2	4	4	4	1	1	1	1	1	1	2	4	4
Distance (km)	18	18	41	18	18	18	18	18	18	18	18	42	123	123	41	164	205	205	205	126	127	47	45
Best forecast wave conditions in Oahu	Off the Wall/Insanities	Waimea Bay/Pinballs	Waimea Bay/Pinballs	Waimea Bay/Pinballs	Off the Wall/Insanities	Waimea Bay/Pinballs	Ranches	Ranches	Pipeline	Waimea Bay/Pinballs	Makaha (Outside)	Tracks (Nanakuli)			Maili Point							Ranches	Ranches
Rating (10 max)	2	2	2	2	3	4	4	4	5	5	4	4			4							4	4
Best forecast wave conditions in United States	Mouse Rock CAL - San Luis Obispo	Cortez Bank CAL - San Diego County	The Wedge CAL - Orange County	Waimea Bay/Pinballs HAW - Oahu	Cortez Bank CAL - San Diego County	Waimea Bay/Pinballs HAW - Oahu	Ranches HAW - Oahu	Ranches HAW - Oahu	Pipeline HAW - Oahu	Waimea Bay/Pinballs HAW - Oahu	Lahaina Breakwall/Harbour HAW - Maui	Lahaina Breakwall/Harbour HAW - Maui	Lincoln City Nelscott Reef Oregon North	Lincoln City Nelscott Reef Oregon North	Ghost Tree CAL - Monterey	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Mavericks CAL - San Mateo	Ghost Tree CAL - Monterey	Boners CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo
Rating (10 max)	3	4	2	2	4	4	4	4	5	5	4	4	4	4	4	4	4	4	4	4	4	4	4
Header Global	Ahijedero Mexico	Achadas Da Cruz Portugal	Nunoshima Japan	Niyodo Rivermouth Japan	Niyodo Rivermouth Japan	Kaiser's (Hachijojima Island) Japan	Ahijedero Mexico	Ahijedero Mexico	Pipeline United States	Chuns and Jocks Reefs United States	Trial Harbour Australia	Ahijedero Mexico	Ahijedero Mexico	Ahijedero Mexico	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Bali Village Indonesia	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Boners United States	Boners United States
Rating (10 max)	4	4	5	5	5	5	4	4	5	5	5	4	4	4	5	5	5	5	4	5	5	4	4

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

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Castles Beach 48 hour detailed Surf Forecast

How big are the waves at Castles Beach today (31 Oct):

Short Range Forecast

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