China Walls 48 hour detailed Surf Forecast

Lat Long: 21.27° N 157.71° W

Issued: 1 am 21 Jul 2026 (local time)

Forecast update in hr min

Today's China Walls sea temperature is

26.6° 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 Jul):

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

The current surf forecast for China Walls at 7AM is: 0.8m 15s primary swell from a South direction (forecast issued at 01:00am July 21). An open ocean swell of 1.2m 7s 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 Jul)	2.5ft (0.8m)	14s
Afternoon (21 Jul)	3ft (0.9m)	14s
Evening (21 Jul)	3ft (0.9m)	13s

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

	Short Range Forecast Light rain (total 6mm), mostly falling on Tue morning. Warm (max 26°C on Tue afternoon, min 24°C on Wed afternoon). Winds increasing (light winds from the ENE on Tue night, strong winds from the ENE by Thu night).
	Tuesday 21								Wednesday 22								Thursday 23
	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	11 PM
Rating (10 max)	1	1	1	1	0	0	1	1	1	2	1	0	0	1	1	1	1	1	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	S 15	S 15	S 15	S 14	S 14	S 14	S 14	S 13	S 13	S 13	S 24	SSW 24	SSW 24	SSW 23	SSW 22	SSW 22	SSW 22	SSW 21	SSW 21	SSW 20	SSW 20	SSW 20	SSW 19	SSW 19
Wave Graph
kJ	339	339	267	329	320	311	289	281	277	273	289	317	314	426	387	485	363	471	487	412	399	395	391	517
Wind (km/h)	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	NE	NE	ENE	ENE	ENE	ENE	ENE	ENE	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	cross-off
High Tide				10:08AM0.51m			7:46PM0.29m						11:08AM0.55m			8:50PM0.23m					11:59AM0.59m			10:38PM0.19m
Low Tide		2:33AM0.04m					5:25PM0.28m			3:12AM0.05m					7:38PM0.23m			3:57AM0.05m						8:24PM0.18m


	—	5:58	—	—	—	—	—	—	—	6:00	—	—	—	—	—	—	—	6:00	—	—	—	—	—	—
	—	—	—	—	—	7:14	—	—	—	—	—	—	—	7:14	—	—	—	—	—	—	—	7:13	—	—
mm	1	1	2	—	—	—	1	—	1	1	1	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	25	25	25	25	26	26	25	25	25	25	25	25	25	24	25	25	24	25	24	25	25	25	24	24
Feels °C	25	25	25	25	25	25	25	25	26	25	23	22	22	20	23	23	22	22	21	21	21	22	20	20
Swell 1 Height (m) Direction Period (s)	S 15	ENE 7	ENE 7	ENE 7	ENE 7	NE 7	S 14	S 13	S 13	S 13	S 13	S 13	E 12	E 11	S 13	E 12	S 13	E 12	SSW 21	SSW 20	SSW 20	SSW 20	SSW 19	SSW 19
kJ	339	158	136	136	117	69	289	281	277	273	273	215	134	123	212	177	157	180	487	412	399	395	391	517
Swell 2 Height (m) Direction Period (s)	SW 16	S 15	S 15	S 14	S 14	S 14	NE 7	E 13	E 13	E 12	E 12	E 12	S 13	SSW 23	E 12	S 13	SSW 22	S 13	S 12	S 12	S 11	E 11	S 11	S 13
kJ	69	339	267	329	320	311	65	85	121	107	103	138	126	426	169	160	363	155	148	97	127	86	89	85
Swell 3 Height (m) Direction Period (s)	E 12	SW 16	SW 17	SW 17	SW 17	E 7	E 7	SW 15	SW 15	SSW 26	S 24	SSW 24	SSW 24	S 13	SSW 22	SSW 22	SW 18	SSW 21	SW 16	SSW 16	SSW 16	S 11	S 14	S 11
kJ	12	69	70	72	71	46	48	60	60	217	289	317	314	125	387	485	150	471	64	100	100	90	93	56
Wind waves Height (m) Direction Period (s)	ENE 7	—	—	—	—	—	ENE 7	ENE 7	ENE 7	ENE 7	ENE 7	ENE 7	ENE 7	ENE 6	ENE 6	ENE 6	ENE 6	ENE 6	ENE 7	ENE 7	ENE 7	ENE 7	ENE 7	ENE 7
kJ	162	—	—	—	—	—	140	120	136	158	168	163	166	140	136	119	201	218	268	360	316	255	298	385
Nearest Offshore or Glassy	Waikiki HAW - Oahu	Waikiki HAW - Oahu	Waikiki HAW - Oahu	Waikiki HAW - Oahu	Ko Olina Resort HAW - Oahu	Ala Moana Courts HAW - Oahu	Waikiki HAW - Oahu	Ko Olina Resort HAW - Oahu	Sleepy Hollows HAW - Oahu	Reef Runway (Hickam Harbor) HAW - Oahu	Ko Olina Resort HAW - Oahu	Power Plant HAW - Oahu	Power Plant HAW - Oahu	Keaulanas HAW - Oahu	Ko Olina Resort HAW - Oahu	Ko Olina Resort HAW - Oahu	Ko Olina Resort HAW - Oahu	Ko Olina Resort HAW - Oahu	Power Plant HAW - Oahu	Maili Point HAW - Oahu	Lahilahi Point HAW - Oahu	Lahilahi Point HAW - Oahu	Maili Point HAW - Oahu	Maili Point HAW - Oahu
Rating (10 max)	2	2	2	2	2	2	2	2	2	2	3	3	3	3	3	3	3	3	3	3	3	3	3	3
Distance (km)	12	12	12	12	43	15	12	43	10	25	43	44	44	47	43	43	43	43	44	51	56	56	51	51
Best forecast wave conditions in Oahu	Empty Lots	The Cove	Makaha (Outside)	Paradise	Makaha (Outside)	Makaha (Outside)	Turtles Reef	Makaha (Outside)	Tennis Courts	Yokohama Bay	Makaha (Outside)	Makaha (Outside)	Makaha (Outside)	Makaha (Outside)	Yokohama Bay	Kaena Point	Turtles Reef	Kaena Point	Yokohama Bay	Kaena Point	Makaha (Outside)	Yokohama Bay	Makaha (Outside)	Yokohama Bay
Rating (10 max)	3	3	2	3	2	2	2	2	3	2	3	3	3	3	3	3	3	3	3	3	3	3	4	3
Best forecast wave conditions in United States	Mouse Rock CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Magics HAW - Big Island	Point Reyes Beach CAL - Marin County	Moonstone Beach CAL - Humboldt	Cojo CAL - Santa Barbara	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Magics HAW - Big Island	Magics HAW - Big Island	Majors Bay HAW - Kaua'i	Makaha (Outside) HAW - Oahu	Super Tubes CAL - Ventura	Acid Drops HAW - Kaua'i	Super Tubes CAL - Ventura	Super Tubes CAL - Ventura	Boners CAL - San Luis Obispo	Fullers CAL - Monterey	Majors Bay HAW - Kaua'i	Majors Bay HAW - Kaua'i	Church CAL - Orange County	Makaha (Outside) HAW - Oahu	Boners CAL - San Luis Obispo
Rating (10 max)	3	3	2	3	2	3	3	3	3	3	3	3	3	3	4	3	3	3	3	3	4	3	4	3
Header Global	Cape St Martin South Africa	Albatross South Africa	Sea Vista South Africa	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Gas Bay Australia	Cobblestones Australia	Gas Bay Australia	Cobblestones Australia	Cathedral Rock Australia	Cathedral Rock Australia	Viri Inga O Tuki Chile	Aufaga Village Samoa	Cobblestones Australia	Boneyards South Africa	Albatross South Africa	Blackfellows Australia	The Hoek South Africa	Point Roadnight Australia	Dolphin Point South Africa	Boneyards South Africa	Boneyards South Africa	Boneyards South Africa
Rating (10 max)	4	4	5	5	5	6	6	5	5	5	8	5	6	4	4	4	4	4	6	9	9	9	9	8

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 Jul):

Short Range Forecast

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