Backdoor 48 hour detailed Surf Forecast

Lat Long: 21.67° N 158.05° W

Issued: 1 pm 14 Jul 2026 (local time)

Forecast update in hr min

Today's Backdoor sea temperature is

26.0° C

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 Backdoor today (14 Jul):

Morning surf: Morning surf (14 Jul, local time) - 4ft (1.2m), 7s period with NNE swell.
Afternoon surf: Afternoon surf (14 Jul, local time) - 5ft (1.5m), 8s period with NE swell.
Evening surf: Evening surf (14 Jul, local time) - 4.5ft (1.3m), 8s period with NE swell.

The current surf forecast for Backdoor at 7PM is: 1.3m 8s primary swell from a Northeast direction (forecast issued at 01:00pm July 14). An open ocean swell of 0.6m 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 (14 Jul)	4ft (1.2m)	7s
Afternoon (14 Jul)	5ft (1.5m)	8s
Evening (14 Jul)	4.5ft (1.3m)	8s

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

	Short Range Forecast Light rain (total 5mm), mostly falling on Tue afternoon. Warm (max 26°C on Wed afternoon, min 24°C on Tue night). Wind will be generally light.
	Tue 14					Wednesday 15								Thursday 16								Fri 17
	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	2 AM	5 AM	8 AM
Rating (10 max)	2	2	1	1	2	1	1	1	1	1	1	1	1	1	1	1	1	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	NE 8	NE 8	W 16	NE 8	NE 8	NE 8	W 15	W 15	W 15	W 15	W 15	W 15	W 15	W 15	W 15	W 14	W 14	W 14	W 14	W 14	W 14	W 14	W 14	W 14
Wave Graph
kJ	248	248	194	200	172	204	229	227	224	221	218	215	215	212	209	206	153	150	150	150	150	148	148	103
Wind (km/h)	ENE	ENE	ENE	ENE	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E
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			3:42PM0.87m				2:16AM0.36m				4:17PM0.84m				3:16AM0.37m				4:48PM0.79m				4:19AM0.39m
Low Tide					10:57PM0.30m				8:33AM-0.00m					11:24PM0.28m			9:15AM0.06m					11:51PM0.26m


	—	—	—	—	—	—	5:58	—	—	—	—	—	—	—	5:58	—	—	—	—	—	—	—	5:58	—
	—	—	7:17	—	—	—	—	—	—	—	7:17	—	—	—	—	—	—	—	7:16	—	—	—	—	7:16
mm	1	1	—	—	—	—	—	—	—	1	1	1	1	—	—	—	—	—	—	—	—	—	—	—
Temp °C	25	25	25	24	24	24	24	24	25	26	25	25	24	24	24	25	26	26	26	25	25	24	24	25
Feels °C	24	24	24	24	25	25	25	24	25	26	25	26	24	24	24	25	26	26	25	25	25	23	23	24
Swell 1 Height (m) Direction Period (s)	W 16	W 16	E 8	NE 8	NE 8	NE 8	NE 7	NE 7	W 15	NNE 8	NNE 8	NNE 8	W 15	W 15	W 15	W 14	NNE 7	W 14	W 14	W 14	W 14	W 14	W 14	NNE 8
kJ	134	190	58	200	160	204	160	156	224	65	60	62	215	212	209	206	47	150	150	150	150	148	148	35
Swell 2 Height (m) Direction Period (s)	SW 14	SW 14	W 16	E 8	W 15	W 15	W 15	W 15	SSW 13	W 15	W 15	W 15	SW 15	SW 16	SW 16	SW 13	W 14	NNE 7	NNE 7	NNE 7	NNE 7	NNE 7	NNE 8	W 14
kJ	91	89	190	41	172	170	229	227	64	221	218	215	112	121	122	43	153	42	30	29	27	29	35	103
Swell 3 Height (m) Direction Period (s)	SW 19	SSW 19	SW 14	W 16	E 8	SW 13	SW 17	SSW 13	SW 18	SSW 13	SSW 14	SW 14	SSW 19	SW 20	SW 20	SW 16	SW 13	SW 17	SW 13	SW 13	SSW 17	SW 13	SW 12	SW 12
kJ	58	37	89	186	40	43	77	65	79	63	78	103	37	15	15	65	43	72	44	44	113	40	22	36
Wind waves Height (m) Direction Period (s)	NE 8	NE 8	NE 7	—	—	—	—	—	NE 7	ENE 7	ENE 7	ENE 7	ENE 7	ENE 7	ENE 7	ENE 7	E 6	E 6	E 6	E 6	E 6	E 6	ENE 6	ENE 6
kJ	248	248	194	—	—	—	—	—	156	118	108	125	178	178	178	158	92	124	151	151	126	146	160	139
Nearest Offshore or Glassy	Yokohama Bay HAW - Oahu	Yokohama Bay HAW - Oahu	Yokohama Bay HAW - Oahu	Off the Wall/Insanities HAW - Oahu	Backdoor HAW - Oahu	Banzai Pipeline and Backdoor HAW - Oahu	Banzai Pipeline and Backdoor HAW - Oahu	Banzai Pipeline and Backdoor HAW - Oahu	Banzai Pipeline and Backdoor HAW - Oahu	Banzai Pipeline and Backdoor HAW - Oahu	Banzai Pipeline and Backdoor HAW - Oahu	Banzai Pipeline and Backdoor HAW - Oahu	Banzai Pipeline and Backdoor HAW - Oahu	Banzai Pipeline and Backdoor HAW - Oahu	Banzai Pipeline and Backdoor HAW - Oahu	Banzai Pipeline and Backdoor 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	Off the Wall/Insanities HAW - Oahu	Off the Wall/Insanities HAW - Oahu	Off the Wall/Insanities HAW - Oahu
Rating (10 max)	3	3	3	2	2	2	2	2	2	2	2	2	2	2	2	2	2	1	1	1	1	1	2	1
Distance (km)	24	24	24	2	0	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2
Best forecast wave conditions in Oahu	Maili Point	Bomboras	Maili Point	Ranches	Ranches	Tennis Courts	Tennis Courts	Ranches	Waimea Bay/Pinballs	Waimea Bay/Pinballs	Waimea Bay/Pinballs	Ranches	Ranches	Ranches	Ranches	Ranches	Ranches	Off the Wall/Insanities	Ranches	Ranches	Ranches	Ranches	Ranches	Ranches
Rating (10 max)	3	3	3	2	2	2	2	2	2	2	2	2	2	2	2	2	2	1	2	2	2	2	2	2
Best forecast wave conditions in United States	Majors Bay HAW - Kaua'i	Infinities HAW - Kaua'i	Kahalu'u HAW - Big Island	Mouse Rock CAL - San Luis Obispo	Magics HAW - Big Island	Mouse Rock CAL - San Luis Obispo	Tennis Courts HAW - Oahu	Ranches HAW - Oahu	Waimea Bay/Pinballs HAW - Oahu	Waimea Bay/Pinballs HAW - Oahu	Waimea Bay/Pinballs HAW - Oahu	Ranches HAW - Oahu	Boners CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Magics 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	Boners CAL - San Luis Obispo
Rating (10 max)	3	3	3	2	3	3	2	2	2	2	2	2	4	4	4	3	2	2	2	4	4	3	3	3
Header Global	Cathedral Rock Australia	Cathedral Rock Australia	Asu Indonesia	Anawhata Road (Oaonui) New Zealand	Anawhata Road (Oaonui) New Zealand	Balnarring Point Australia	The Hoek South Africa	Cape St Martin South Africa	Hell South Africa	Fish Boma South Africa	Boneyards South Africa	Boneyards South Africa	Dunedin - Cob Cottage New Zealand	Easter Reef Australia	Otago Peninsula - Allans Beach New Zealand	Easter Reef Australia	Easter Reef Australia	Easter Reef Australia	Easter Reef Australia	Papatowai New Zealand	Easter Reef Australia	Cannibal Bay New Zealand	Otago Peninsula - Allans Beach New Zealand	Dunedin - Cob Cottage New Zealand
Rating (10 max)	8	7	4	5	5	4	5	5	5	5	5	5	8	5	5	5	6	6	6	7	5	5	7	5

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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Backdoor 48 hour detailed Surf Forecast

How big are the waves at Backdoor today (14 Jul):

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