Banzai Pipeline and Backdoor 48 hour detailed Surf Forecast

Lat Long: 21.65° N 158.07° W

Issued: 1 am 18 Jul 2026 (local time)

Forecast update in hr min

Today's Banzai Pipeline and Backdoor sea temperature is

26.3° C

Banzai Pipeline and Backdoor 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 Banzai Pipeline and Backdoor today (18 Jul):

Morning surf: Morning surf (18 Jul, local time) - 1.5ft (0.4m), 13s period with WNW swell.
Afternoon surf: Afternoon surf (18 Jul, local time) - 1.5ft (0.4m), 13s period with WNW swell.
Evening surf: Evening surf (18 Jul, local time) - 1ft (0.3m), 13s period with WNW swell.

The current surf forecast for Banzai Pipeline and Backdoor at 5AM is: 0.4m 13s primary swell from a West-northwest direction (forecast issued at 01:00am July 18). An open ocean swell of 0.4m 15s is not directed at the surf break, a second open ocean swell of 1.8m 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 (18 Jul)	1.5ft (0.4m)	13s
Afternoon (18 Jul)	1.5ft (0.4m)	13s
Evening (18 Jul)	1ft (0.3m)	13s

Table - waves today at Banzai Pipeline and Backdoor. (Swell directed towards the surf break)

	Short Range Forecast Mostly dry. Warm (max 26°C on Sat morning, min 24°C on Sat night). Wind will be generally light.
	Saturday 18								Sunday 19								Monday 20
	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	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)	WNW 13	WNW 13	WNW 13	WNW 13	WNW 13	WNW 13	WNW 13	WNW 13	WNW 13	WNW 12	WNW 12	WNW 12	WNW 12	WNW 12	WNW 12	WNW 12	WNW 12	NNE 8	W 12	W 12	W 12	W 12	W 12	W 11
Wave Graph
kJ	60	58	57	57	57	57	57	33	32	29	29	29	29	29	29	28	14	51	11	11	11	11	10	10
Wind (km/h)	E	E	E	E	E	ENE	ENE	ENE	ENE	E	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	E	ENE	ENE	ENE	ENE	E
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	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			5:30AM0.40m				5:34PM0.65m				6:57AM0.43m				5:45PM0.58m					8:57AM0.47m			5:34PM0.52m
Low Tide	00:19AM0.24m			10:35AM0.25m					00:47AM0.21m				11:17AM0.35m				1:17AM0.19m				12:21PM0.45m


	—	5:58	—	—	—	—	—	—	—	5:58	—	—	—	—	—	—	—	6:00	—	—	—	—	—	—
	—	—	—	—	—	7:16	—	—	—	—	—	—	—	7:16	—	—	—	—	—	—	—	7:15	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	25	24	25	26	26	25	24	24	24	24	24	26	26	25	25	24	24	24	25	26	26	26	24	24
Feels °C	25	23	24	24	25	24	23	23	24	24	23	25	25	24	24	24	24	24	25	26	26	26	24	24
Swell 1 Height (m) Direction Period (s)	NNE 7	WNW 13	WNW 13	WNW 13	WNW 13	WNW 13	WNW 13	WNW 13	NNE 7	NNE 7	NNE 7	WNW 12	WNW 12	WNW 12	WNW 12	WNW 12	WNW 12	NNE 8	SSW 12	SSW 12	SSW 18	SSW 18	SSW 11	SSW 17
kJ	28	58	57	57	57	57	57	33	19	20	21	29	29	29	29	28	14	51	14	13	31	31	12	28
Swell 2 Height (m) Direction Period (s)	WNW 13	SW 15	SSW 15	SSW 14	SSW 14	SSW 14	NNE 8	NNE 8	WNW 13	WNW 12	WNW 12	SSW 11	SSW 13	SSW 13	SSW 13	SSW 13	SSW 12	W 12	W 12	SSW 18	SSW 11	SSW 12	SSW 18	SSW 11
kJ	60	56	21	41	41	41	14	13	32	29	29	12	17	17	17	17	15	11	11	32	12	13	30	12
Swell 3 Height (m) Direction Period (s)	SSW 15	S 13	SSW 11	SSW 11	SSW 11	NNE 8	SSW 14	SSW 14	SSW 14	SSW 14	SSW 12	SSW 14	SW 20	SW 20	SW 19	SW 19	SW 19	SSW 12	SSW 18	W 12	W 12	W 12	W 12	W 11
kJ	87	3	12	11	11	14	41	40	19	19	13	18	15	15	15	14	14	14	33	11	11	11	10	10
Wind waves Height (m) Direction Period (s)	E 6	E 7	E 7	E 7	ENE 7	ENE 8	ENE 8	ENE 8	E 8	E 8	E 8	ENE 8	ENE 8	ENE 8	ENE 8	ENE 8	ENE 8	E 8	ENE 8	ENE 8	ENE 7	ENE 7	ENE 7	ENE 7
kJ	178	284	335	320	365	427	385	416	341	349	295	310	310	310	273	284	266	182	226	220	237	242	203	197
Nearest Offshore or Glassy	Banzai Pipeline and Backdoor HAW - Oahu	Yokohama Bay HAW - Oahu	Yokohama Bay HAW - Oahu	Yokohama Bay HAW - Oahu	Yokohama Bay HAW - Oahu	Yokohama Bay HAW - Oahu	Off the Wall/Insanities HAW - Oahu	Yokohama Bay HAW - Oahu	Off the Wall/Insanities HAW - Oahu	Yokohama Bay HAW - Oahu	Off the Wall/Insanities HAW - Oahu	Yokohama Bay HAW - Oahu	Yokohama Bay HAW - Oahu	Ranches HAW - Oahu	Ranches HAW - Oahu	Yokohama Bay HAW - Oahu	Yokohama Bay HAW - Oahu	Off the Wall/Insanities HAW - Oahu	Kaena Point HAW - Oahu	Avalanche HAW - Oahu	Avalanche HAW - Oahu	Haleiwa/Toilet Bowl HAW - Oahu	Yokohama Bay HAW - Oahu	Yokohama Bay HAW - Oahu
Rating (10 max)	1	2	2	2	2	2	1	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Distance (km)	0	22	22	22	22	22	0	22	0	22	0	22	22	24	24	22	22	0	24	9	9	8	22	22
Best forecast wave conditions in Oahu	Ranches	Maili Point	Maili Point	Maili Point	Maili Point	Maili Point	Off the Wall/Insanities	Ko Olina Resort	Ranches	Ko Olina Resort	Ranches	Ranches	Ranches	Ranches	Ranches	Ranches	Ranches	Ranches	Ranches	Ranches	Ranches	Ranches	Ranches	Ranches
Rating (10 max)	1	2	2	2	2	2	1	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Best forecast wave conditions in United States	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Waiaha Rivermouth / Honls HAW - Big Island	Steamer Lane-Middle Peak CAL - Santa Cruz	Gale Point CAL - Humboldt	Steamer Lane-The Point CAL - Santa Cruz	Moonstone Beach CAL - Humboldt	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Ranches HAW - Oahu	Ranches HAW - Oahu	Ranches HAW - Oahu	Ranches HAW - Oahu	Boners CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Ranches HAW - Oahu	Ranches HAW - Oahu	Ranches HAW - Oahu	Super Tubes CAL - Ventura	Ghost Tree CAL - Monterey	Mouse Rock CAL - San Luis Obispo
Rating (10 max)	3	3	2	2	3	3	3	3	3	3	1	1	1	1	3	3	3	3	1	1	1	2	3	3
Header Global	Seconds (White Rock) New Zealand	Seconds (White Rock) New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Otago Peninsula - Allans Beach New Zealand	Otago Peninsula - Allans Beach New Zealand	Otago Peninsula - Allans Beach New Zealand	Dinner Plates New Zealand	White Rock - The Spit New Zealand	Humenga Point New Zealand	Last Chance New Zealand	Diners Beach New Zealand	Diners Beach New Zealand	Angourie Point Australia	Asu Indonesia	Asu Indonesia	Beach Road South Africa
Rating (10 max)	7	6	6	6	6	6	7	7	7	7	7	7	5	5	5	7	5	5	5	5	4	4	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)

Latest Updates

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Banzai Pipeline and Backdoor 48 hour detailed Surf Forecast

How big are the waves at Banzai Pipeline and Backdoor today (18 Jul):

Short Range Forecast

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