China Walls 48 hour detailed Surf Forecast

Lat Long: 21.27° N 157.71° W

Issued: 7 am 21 Sep 2026 (local time)

Forecast update in hr min

Today's China Walls sea temperature is

27.6°C

China Walls 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 China Walls today (21 Sep):

Morning surf: Morning surf (21 Sep, local time) - 3ft (0.9m), 14s period with SSW swell.
Afternoon surf: Afternoon surf (21 Sep, local time) - 2.5ft (0.8m), 14s period with SSW swell.
Evening surf: Evening surf (21 Sep, local time) - 2.5ft (0.8m), 13s period with SSW swell.

The current surf forecast for China Walls at 11AM is: 0.8m 14s primary swell from a South-southwest direction and 0.3m 14s secondary swell from a Southwest direction (forecast issued at 07:00am September 21). An open ocean swell of 2.0m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (HST) & Date	Wave Height	Wave Period
Morning (21 Sep)	3ft (0.9m)	14s
Afternoon (21 Sep)	2.5ft (0.8m)	14s
Evening (21 Sep)	2.5ft (0.8m)	13s

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

	Short Range Forecast Mostly dry. Warm (max 26°C on Mon morning, min 25°C on Mon morning). Mainly fresh winds.
	Monday 21							Tuesday 22								Wednesday 23
	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	1	1	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	E 8	SSW 14	SSW 14	SSW 14	SSW 13	SSW 13	S 13	S 13	SSW 13	SSW 13	SSW 13	S 12	S 12	S 12	E 9	E 9	E 9	SW 17	SW 17	SW 17	SW 16	SSW 16	SSW 16
Wave Graph
kJ	566	331	265	250	239	236	171	168	178	176	170	153	146	106	367	800	641	148	145	138	125	166	164
Wind (km/h)	ENE	ENE	NE	ENE	NE	NE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	NE	NE	ENE	ENE	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				12:07PM0.59m				00:31AM0.29m				12:42PM0.61m				1:04AM0.34m				1:14PM0.61m
Low Tide	5:00AM0.13m					7:32PM0.11m				5:55AM0.11m				7:51PM0.09m				6:42AM0.09m					8:09PM0.08m


	6:18	—	—	—	—	—	—	—	6:18	—	—	—	—	—	—	—	6:18	—	—	—	—	—	—
	—	—	—	—	6:28	—	—	—	—	—	—	—	6:27	—	—	—	—	—	—	—	6:25	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	25	25	26	25	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26
Feels °C	21	21	24	22	25	25	25	25	25	25	25	24	24	25	25	25	25	24	23	23	24	24	24
Swell 1 Height (m) Direction Period (s)	SSW 14	SSW 14	SSW 14	SSW 14	SSW 13	SSW 13	S 13	S 13	SSW 13	SSW 13	SSW 13	S 12	S 12	S 12	E 9	ENE 9	S 13	S 13	S 13	S 13	S 12	SSW 16	SSW 16
kJ	336	331	265	250	239	236	171	168	178	176	170	153	146	106	367	599	117	121	121	82	75	166	164
Swell 2 Height (m) Direction Period (s)	SW 15	SSW 15	SW 14	SW 14	SW 14	SW 14	SW 13	SW 13	NNW 13	NNW 13	N 12	N 12	N 12	N 11	S 12	S 12	N 11	NNW 10	SW 17	SW 17	SW 16	S 12	S 12
kJ	33	21	32	32	31	31	46	46	58	55	75	72	69	63	106	110	57	35	145	138	125	75	76
Swell 3 Height (m) Direction Period (s)	W 12	W 12	W 11	W 11	W 11	W 11	W 11	N 14	W 13	SSW 13	SSW 19	SW 19	SW 19	SW 17	N 11	N 11	SSW 17	SW 17	NNW 10	NNW 10	NNW 10	NNW 10	NNW 10
kJ	11	11	10	9	9	9	10	15	13	17	36	57	92	72	61	61	119	148	34	34	33	33	31
Wind waves Height (m) Direction Period (s)	E 8	ENE 8	ENE 8	ENE 8	ENE 8	ENE 8	ENE 8	ENE 8	ENE 8	ENE 8	ENE 8	ENE 8	ENE 8	ENE 8	NE 8	E 9	E 9	ENE 10	ENE 10	ENE 10	ENE 10	ENE 9	ENE 9
kJ	566	481	449	416	408	418	384	384	361	361	330	370	359	448	143	800	641	696	696	614	631	517	552
Nearest Offshore or Glassy	Ko Olina Resort HAW - Oahu	Power Plant HAW - Oahu	Ko Olina Resort HAW - Oahu	Ko Olina Resort HAW - Oahu	Lahaina Breakwall/Harbour HAW - Maui	Ko Olina Resort HAW - Oahu	Ko Olina Resort HAW - Oahu	Ko Olina Resort HAW - Oahu	Ko Olina Resort HAW - Oahu	Ko Olina Resort HAW - Oahu	Ko Olina Resort HAW - Oahu	Maili Point HAW - Oahu	Maili Point HAW - Oahu	Nanakuli Blackrocks HAW - Oahu	Power Plant HAW - Oahu	Ko Olina Resort HAW - Oahu	Ko Olina Resort HAW - Oahu	Ko Olina Resort HAW - Oahu	Nanakuli Blackrocks HAW - Oahu	Pokai Bay HAW - Oahu	Maili Point HAW - Oahu	Nanakuli Blackrocks HAW - Oahu	Ko Olina Resort HAW - Oahu
Rating (10 max)	2	2	2	2	1	2	2	1	1	1	1	2	2	2	1	1	1	1	2	2	2	2	1
Distance (km)	43	44	43	43	114	43	43	43	43	43	43	51	51	45	44	43	43	43	45	54	51	45	43
Best forecast wave conditions in Oahu	Yokohama Bay	Yokohama Bay	Kaena Point	Yokohama Bay		Yokohama Bay	Yokohama Bay	Kaena Point	Kaena Point	Ranches	Ranches	Ranches	Yokohama Bay	Kaena Point	Kaena Point	Makaha (Outside)	Ranches	Ranches	Ranches	Makaha (Outside)	Yokohama Bay	Yokohama Bay	Yokohama Bay
Rating (10 max)	2	2	2	2		2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2
Best forecast wave conditions in United States	Mouse Rock CAL - San Luis Obispo	Turtles Washington	Majors Bay HAW - Kaua'i	Majors Bay HAW - Kaua'i	Magics HAW - Big Island	Lincoln City Nelscott Reef Oregon North	Super Tubes CAL - Ventura	Lincoln City Nelscott Reef Oregon North	Boners CAL - San Luis Obispo	Magics HAW - Big Island	Ranches HAW - Oahu	Super Tubes CAL - Ventura	Steamer Lane-The Point CAL - Santa Cruz	Mouse Rock CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Ranches HAW - Oahu	Fort Point CAL - Marin County	Fullers CAL - Monterey	Cortez Bank CAL - San Diego County	Lincoln City Nelscott Reef Oregon North
Rating (10 max)	3	3	3	3	2	4	2	4	3	2	2	2	4	3	3	3	4	4	2	3	4	4	4
Header Global	Ouano Lefts New Caledonia	Ouano Lefts New Caledonia	Easter Reef Australia	Cobblestones Australia	Benkunqut Indonesia	Cloudbreak Fiji	Trial Harbour Australia	Trial Harbour Australia	Dunedin - Bobs Beach New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Afife Portugal	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Stent Road New Zealand	Anawhata Road (Oaonui) New Zealand	Anawhata Road (Oaonui) New Zealand	Chameau Mauritius	Black Rocks Mauritius	Rio Nexpa Mexico	Papatowai New Zealand
Rating (10 max)	6	6	9	5	4	5	9	9	8	9	9	9	4	7	7	6	6	5	5	5	5	9	5

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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China Walls 48 hour detailed Surf Forecast

How big are the waves at China Walls today (21 Sep):

Short Range Forecast

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