Rockpiles 48 hour detailed Surf Forecast

Lat Long: 21.28° N 157.84° W

Issued: 7 am 22 Sep 2026 (local time)

Forecast update in hr min

Today's Rockpiles sea temperature is

27.7°C

Rockpiles 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 Rockpiles today (22 Sep):

Morning surf: Morning surf (22 Sep, local time) - 5ft (1.5m), 8s period with ENE swell.
Afternoon surf: Afternoon surf (22 Sep, local time) - 5.5ft (1.7m), 8s period with ENE swell.
Evening surf: Evening surf (22 Sep, local time) - 6.5ft (2.0m), 8s period with E swell.

The current surf forecast for Rockpiles at 2PM is: 1.6m 8s primary swell from a East-northeast direction and 0.7m 12s secondary swell from a South direction (forecast issued at 07:00am September 22). An open ocean swell of 0.5m 12s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (HST) & Date	Wave Height	Wave Period
Morning (22 Sep)	5ft (1.5m)	8s
Afternoon (22 Sep)	5.5ft (1.7m)	8s
Evening (22 Sep)	6.5ft (2.0m)	8s

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

	Short Range Forecast Mostly dry. Warm (max 27°C on Tue morning, min 25°C on Tue night). Mainly strong winds.
	Tuesday 22							Wednesday 23								Thursday 24
	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)	2	1	0	0	0	1	1	1	1	2	1	1	0	0	1	1	0	0	0	0	1	1	1
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	ENE 8	ENE 8	ENE 8	ENE 8	ENE 8	ENE 8	E 8	E 9	E 10	E 10	ENE 10	E 9	E 9	E 9	E 9	E 9	E 7	E 7	E 8	E 8	E 8	E 8	E 8
Wave Graph
kJ	330	291	291	330	414	547	617	650	739	767	784	792	777	694	646	562	404	427	551	566	634	650	653
Wind (km/h)	NE	NE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	NE	ENE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off
High Tide				1:41PM0.62m					2:04AM0.37m				2:12PM0.62m				2:36AM0.43m				2:42PM0.60m
Low Tide		6:43AM0.13m					8:34PM0.11m			7:31AM0.11m					8:51PM0.09m				8:17AM0.10m				9:09PM0.07m


	6:20	—	—	—	—	—	—	—	6:20	—	—	—	—	—	—	—	6:20	—	—	—	—	—	—
	—	—	—	—	6:27	—	—	—	—	—	—	—	6:25	—	—	—	—	—	—	—	6:24	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	26	26	27	27	26	26	25	26	26	26	27	26	26	26	26	26	25	26	26	26	26	25	26
Feels °C	27	26	26	25	24	25	24	25	24	24	24	23	23	24	25	26	22	23	23	23	23	21	23
Swell 1 Height (m) Direction Period (s)	SSW 13	SSW 13	SSW 13	S 12	S 12	S 12	S 12	E 9	S 13	S 13	S 13	S 12	S 12	SSW 16	SSW 16	SSW 16	SSW 16	SW 16	SW 15	SW 17	SSW 17	SSW 14	SW 15
kJ	178	176	170	153	146	106	106	650	117	119	121	110	75	166	164	166	166	255	242	298	377	134	220
Swell 2 Height (m) Direction Period (s)	NNW 13	NNW 13	N 12	N 12	N 12	N 11	N 11	S 12	N 11	SW 17	SW 17	SW 17	SW 16	S 12	S 12	S 12	S 12	S 12	S 12	S 12	S 12	SSW 17	SSW 18
kJ	58	55	75	72	69	63	61	110	57	148	145	138	125	75	76	76	72	71	44	44	44	197	123
Swell 3 Height (m) Direction Period (s)	W 13	W 13	SSW 19	SW 19	SW 19	SW 17	SW 17	N 11	SSW 17	NNW 10	NNW 10	NNW 10	NNW 10	NNW 10	NNW 10	NNW 10	NNW 10	NNW 10	NNW 11	NNW 10	NNW 10	S 12	S 12
kJ	13	13	36	57	92	72	74	61	119	35	34	34	33	32	32	31	18	18	39	35	33	44	42
Wind waves Height (m) Direction Period (s)	ENE 8	ENE 8	ENE 8	ENE 8	ENE 8	ENE 8	E 8	—	E 10	E 10	ENE 10	E 9	E 9	E 9	E 9	E 9	E 7	E 7	E 8	E 8	E 8	E 8	E 8
kJ	330	291	291	330	414	547	617	—	739	767	784	792	777	694	646	562	404	427	551	566	634	650	653
Nearest Offshore or Glassy	Bomboras HAW - Oahu	Bomboras HAW - Oahu	Ko Olina Resort HAW - Oahu	Maili Point HAW - Oahu	Maili Cloudbreak HAW - Oahu	Maili Point HAW - Oahu	Nanakuli Tracks HAW - Oahu	Nanakuli Tracks HAW - Oahu	Ko Olina Resort HAW - Oahu	Ko Olina Resort HAW - Oahu	Maili Point HAW - Oahu	Maili Point HAW - Oahu	Pokai Bay HAW - Oahu	Nanakuli Blackrocks HAW - Oahu	Ko Olina Resort HAW - Oahu	Ko Olina Resort HAW - Oahu	Nanakuli Tracks HAW - Oahu	Pokai Bay HAW - Oahu	Pokai Bay HAW - Oahu	Pokai Bay HAW - Oahu	Keaau HAW - Oahu	Lahilahi Point HAW - Oahu	Pokai Bay HAW - Oahu
Rating (10 max)	1	1	1	1	2	2	2	1	1	1	2	2	2	2	1	1	2	2	2	2	1	2	2
Distance (km)	1	1	30	38	39	38	31	31	30	30	38	38	41	32	30	30	31	41	41	41	47	44	41
Best forecast wave conditions in Oahu	The Cove	Ranches	Ranches	Makaha	Yokohama Bay	Kaena Point	Makaha	Ranches	Ranches	Ranches	Ranches	Yokohama Bay	Yokohama Bay	Kaena Point	Kaena Point	Ranches	Kaena Point	Makaha	Makaha	Makaha	Ranches	Makaha	Makaha
Rating (10 max)	3	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	1	2	2
Best forecast wave conditions in United States	Lincoln City Nelscott Reef Oregon North	Magics HAW - Big Island	Ranches HAW - Oahu	Rincon - Rivermouth CAL - Ventura	Lincoln City Nelscott Reef Oregon North	Boners CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Mavericks CAL - San Mateo	Ranches HAW - Oahu	Pakalas HAW - Kaua'i	Mouse Rock CAL - San Luis Obispo	Cortez Bank CAL - San Diego County	Cortez Bank CAL - San Diego County	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Lincoln City Nelscott Reef Oregon North	Magics HAW - Big Island	Fullers CAL - Monterey	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo
Rating (10 max)	4	2	2	2	3	4	4	4	4	3	2	3	3	4	4	3	3	3	2	3	4	3	3
Header Global	Dunedin - Bobs Beach New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Little Wanganui New Zealand	Papatowai New Zealand	Shipwreck Bay-Supertubes New Zealand	Anawhata Road (Oaonui) New Zealand	Anawhata Road (Oaonui) New Zealand	Chameau Mauritius	Pascuales Mexico	Papatowai New Zealand	Barra de Guaratiba Brazil	Barra de Guaratiba Brazil	Barra de Guaratiba Brazil	Barra de Guaratiba Brazil	Barra de Guaratiba Brazil	Barra de Guaratiba Brazil	Barra de Guaratiba Brazil	Inishcrone Ireland	Easky Left Ireland
Rating (10 max)	9	9	9	9	8	7	6	6	6	5	5	5	6	5	4	4	4	4	4	4	4	7	9

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

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Rockpiles 48 hour detailed Surf Forecast

How big are the waves at Rockpiles today (22 Sep):

Short Range Forecast

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