Banzai Pipeline and Backdoor 48 hour detailed Surf Forecast

Lat Long: 21.65° N 158.07° W

Issued: 7 am 13 Sep 2026 (local time)

Forecast update in hr min

Today's Banzai Pipeline and Backdoor sea temperature is

27.0°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 (13 Sep):

Morning surf: Morning surf (13 Sep, local time) - 3ft (0.9m), 9s period with NNE swell.
Afternoon surf: Afternoon surf (13 Sep, local time) - 3ft (0.9m), 9s period with NNE swell.
Evening surf: Evening surf (13 Sep, local time) - 3ft (0.9m), 9s period with NE swell.

The current surf forecast for Banzai Pipeline and Backdoor at 11AM is: 0.9m 9s primary swell from a North-northeast direction and 0.3m 12s secondary swell from a Southwest direction (forecast issued at 07:00am September 13). An open ocean swell of 0.7m 9s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (HST) & Date	Wave Height	Wave Period
Morning (13 Sep)	3ft (0.9m)	9s
Afternoon (13 Sep)	3ft (0.9m)	9s
Evening (13 Sep)	3ft (0.9m)	9s

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

	Short Range Forecast Mostly dry. Warm (max 27°C on Tue morning, min 24°C on Sun night). Wind will be generally light.
	Sunday 13							Monday 14								Tuesday 15
	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	0	0	1	0	0	0	0	0	0	1	0	0	1	1	0	1	1
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	NNE 9	NNE 9	NNE 9	NNE 9	NE 9	NE 9	NE 9	NE 9	NE 8	NE 8	NE 8	SW 22	NE 8	SW 22	SW 21	SW 21	NE 8	NNE 8	SW 20	SW 20	NNE 8	SW 19	SW 19
Wave Graph
kJ	135	138	138	135	112	112	112	123	120	118	100	82	80	73	72	72	51	37	188	186	52	184	184
Wind (km/h)	ENE	E	ENE	ENE	ENE	ENE	E	E	ENE	ENE	E	ENE	ENE	ENE	ENE	E	E	E	ENE	ENE	ENE	E	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	4:01AM0.62m				3:11PM0.54m				4:45AM0.62m				3:14PM0.49m					5:33AM0.61m			2:56PM0.46m
Low Tide			9:53AM0.31m				9:42PM0.12m				10:39AM0.37m				10:01PM0.12m					11:37AM0.42m			10:21PM0.13m


	6:18	—	—	—	—	—	—	—	6:18	—	—	—	—	—	—	—	6:18	—	—	—	—	—	—
	—	—	—	—	6:37	—	—	—	—	—	—	—	6:36	—	—	—	—	—	—	—	6:35	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	24	25	26	26	26	25	24	24	24	25	26	26	26	25	25	25	25	25	27	27	27	26	26
Feels °C	25	26	27	26	26	25	24	25	25	26	26	26	26	25	26	27	26	26	29	28	29	28	27
Swell 1 Height (m) Direction Period (s)	NNE 9	NNE 9	NNE 9	NNE 9	NE 9	NE 9	NE 9	NE 9	NE 8	NE 8	NE 8	NE 8	NE 8	NE 8	NE 8	NE 8	NE 8	NNE 8	NNE 8	NNE 8	NNE 8	NNE 8	NNE 8
kJ	135	138	138	135	112	112	112	123	120	118	100	82	80	69	67	53	51	37	51	39	52	39	39
Swell 2 Height (m) Direction Period (s)	SW 13	SW 12	SW 12	NW 13	SSW 15	SSW 15	ENE 8	SW 12	SW 14	SSW 11	SSW 14	SW 22	SW 22	SW 22	SW 13	SW 21	SW 21	SSW 21	SW 20	SW 20	E 12	SW 19	SW 19
kJ	43	25	24	28	21	21	24	24	51	13	19	79	119	73	28	72	116	170	188	186	44	184	184
Swell 3 Height (m) Direction Period (s)	SSW 16	SW 15	SSW 15	SW 15	SSW 12	SSW 12	SSW 12	NW 12	NW 12	SSW 14	SW 11	SSW 14	SSW 14	WNW 11	SW 21	SSW 13	E 13	NE 8	E 12	E 12	SSW 19	E 11	E 11
kJ	24	36	22	33	14	14	14	23	23	19	5	19	18	12	72	17	31	16	26	45	148	39	38
Wind waves Height (m) Direction Period (s)	ENE 9	E 9	E 9	E 9	E 9	ENE 9	E 3	E 4	E 4	ENE 4	ENE 4	ENE 5	ENE 4	ENE 5	ENE 5	ENE 5	ENE 5	ENE 5	ENE 5	ENE 5	ENE 5	ENE 5	ENE 5
kJ	84	79	78	57	56	58	5	7	12	18	26	22	21	24	25	34	37	50	50	48	46	46	48
Nearest Offshore or Glassy	Banzai Pipeline and Backdoor HAW - Oahu	Banzai Pipeline and Backdoor HAW - Oahu	Banzai Pipeline and Backdoor HAW - Oahu	Banzai Pipeline and Backdoor HAW - Oahu	Waimea Bay/Pinballs HAW - Oahu	Off the Wall/Insanities HAW - Oahu	Log Cabins HAW - Oahu	Off the Wall/Insanities HAW - Oahu	Banzai Pipeline and Backdoor HAW - Oahu	Off the Wall/Insanities HAW - Oahu	Off the Wall/Insanities HAW - Oahu	Aligator Rock HAW - Oahu	Yokohama Bay HAW - Oahu	Off the Wall/Insanities HAW - Oahu	Off the Wall/Insanities HAW - Oahu	Banzai Pipeline and Backdoor HAW - Oahu	Off the Wall/Insanities HAW - Oahu	Chuns Reef HAW - Oahu	Off the Wall/Insanities HAW - Oahu	Off the Wall/Insanities HAW - Oahu	Off the Wall/Insanities HAW - Oahu	Off the Wall/Insanities HAW - Oahu	Off the Wall/Insanities HAW - Oahu
Rating (10 max)	1	1	1	1	1	1	1	1	1	1	1	1	2	1	1	1	1	1	2	2	1	2	2
Distance (km)	0	0	0	0	1	0	0	0	0	0	0	3	22	0	0	0	0	4	0	0	0	0	0
Best forecast wave conditions in Oahu	Tennis Courts	Pipeline	Ranches	Pipeline	Tennis Courts	Tennis Courts	Ranches	Tennis Courts	Ranches	Ranches	Ranches	Chuns and Jocks Reefs	Ranches	Ranches	Ranches	Ranches	Ranches	Bomboras	Off the Wall/Insanities	Off the Wall/Insanities	Ranches	Off the Wall/Insanities	Ranches
Rating (10 max)	2	2	1	2	1	1	1	1	2	1	1	1	2	2	2	2	1	2	2	2	1	2	3
Best forecast wave conditions in United States	Boners CAL - San Luis Obispo	Pipeline HAW - Oahu	Ranches HAW - Oahu	Pipeline HAW - Oahu	Super Tubes CAL - Ventura	Boners CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Waiaha Rivermouth / Honls HAW - Big Island	Ranches HAW - Oahu	Steamer Lane-Middle Peak CAL - Santa Cruz	Ranches HAW - Oahu	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Magics HAW - Big Island	Cojo CAL - Santa Barbara	Ma'alaea HAW - Maui	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Ranches HAW - Oahu
Rating (10 max)	3	2	1	2	1	4	3	3	3	1	1	2	2	4	3	3	3	2	2	2	2	2	3
Header Global	Ouano Lefts New Caledonia	Gas Bay Australia	Ouano Lefts New Caledonia	Fish Boma South Africa	Injidup Carpark Australia	Cobblestones Australia	Cloudbreak Fiji	Gas Bay Australia	Gas Bay Australia	Glen Eden South Africa	Hole-in-the-Wall South Africa	Cow Bombie Australia	Cobblestones Australia	Cobblestones Australia	Cow Bombie Australia	Cow Bombie Australia	Saint Leu Reunion	Etang-Sale Reunion	Saint Leu Reunion	Etang-Sale Reunion	Antiques Maldives	Etang-Sale Reunion	Etang-Sale Reunion
Rating (10 max)	5	6	6	5	5	6	5	6	6	8	7	5	5	5	5	5	5	8	6	6	4	5	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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Banzai Pipeline and Backdoor 48 hour detailed Surf Forecast

How big are the waves at Banzai Pipeline and Backdoor today (13 Sep):

Short Range Forecast

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