Daves Backyard 48 hour detailed Surf Forecast

Lat Long: 21.31° N 158.02° W

Issued: 7 am 04 Sep 2026 (local time)

Forecast update in hr min

Today's Daves Backyard sea temperature is

27.3°C

Daves Backyard 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 Daves Backyard today (04 Sep):

Morning surf: Morning surf (04 Sep, local time) - 4.5ft (1.4m), 13s period with S swell.
Afternoon surf: Afternoon surf (04 Sep, local time) - 5ft (1.5m), 12s period with S swell.
Evening surf: Evening surf (04 Sep, local time) - 4.5ft (1.4m), 12s period with S swell.

The current surf forecast for Daves Backyard at 12PM is: 1.5m 12s primary swell from a South direction and 0.9m 14s secondary swell from a East direction, 1.6m 7s secondary swell from a East direction (forecast issued at 07:00am September 04). The wind direction is predicted to be cross-shore.

Time (HST) & Date	Wave Height	Wave Period
Morning (04 Sep)	4.5ft (1.4m)	13s
Afternoon (04 Sep)	5ft (1.5m)	12s
Evening (04 Sep)	4.5ft (1.4m)	12s

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

	Short Range Forecast Light rain (total 7mm), mostly falling on Sun night. Warm (max 27°C on Fri morning, min 24°C on Sun night). Winds decreasing (fresh winds from the ENE on Fri morning, light winds from the ENE by Sun night).
	Friday 4							Saturday 5								Sunday 6
	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	0	1	1	2	1	2	1	3	1	1	1	2	2	3	2	1	1	1	3	4	4
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SSE 13	SSE 13	S 13	S 12	S 13	S 12	E 14	E 14	E 14	E 14	E 14	E 13	E 13	E 14	E 13	ENE 13	SSW 12	E 13	SSW 12	SSW 13	SSW 14	SSW 14	SSW 14
Wave Graph
kJ	590	659	713	574	726	649	1315	1977	1249	1731	1172	1121	1283	1342	1247	1568	1089	956	1170	1281	1823	1590	1906
Wind (km/h)	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	E	E	E	ENE	ENE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross	cross	cross	cross	cross	cross-off	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross
High Tide			10:39AM0.65m									11:53AM0.69m				11:42PM0.23m				12:50PM0.73m
Low Tide									3:13AM0.11m						8:07PM0.19m		4:50AM0.11m						8:24PM0.16m


	6:16	—	—	—	—	—	—	—	6:16	—	—	—	—	—	—	—	6:16	—	—	—	—	—	—
	—	—	—	—	6:45	—	—	—	—	—	—	—	6:44	—	—	—	—	—	—	—	6:43	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2	3	1
Temp °C	25	26	27	27	26	25	25	25	25	25	27	27	27	25	25	25	25	26	27	27	25	24	25
Feels °C	24	24	23	23	23	23	23	24	23	24	25	25	26	25	25	25	24	25	25	25	26	26	27
Swell 1 Height (m) Direction Period (s)	SSE 13	SSE 13	S 13	S 12	S 13	S 12	S 11	E 14	S 13	S 12	S 12	S 12	SSW 12	SSW 13	SSW 12	SSW 12	SSW 12	E 13	SSW 12	SSW 13	SSW 14	SSW 14	SSW 14
kJ	590	659	713	574	726	649	363	1285	800	883	841	870	1025	1202	1019	1051	1089	956	1170	1281	1823	1590	1906
Swell 2 Height (m) Direction Period (s)	E 14	E 14	E 14	E 14	E 14	E 14	S 13	S 12	SSW 19	E 14	SSW 18	SSW 18	NNE 10	NNE 10	NNE 9	E 13	E 13	SSW 12	SSE 10	E 12	E 12	E 12	SSW 18
kJ	264	253	289	357	478	492	173	678	36	1115	123	123	19	18	16	1104	971	749	19	855	841	841	352
Swell 3 Height (m) Direction Period (s)	SW 18	WSW 12	WSW 12	SW 13	SSW 13	SSW 20	SSW 20	SSW 20	SW 16	—	NNE 10	NNE 10	—	—	SSE 10	N 8	SSE 10	SSW 16	SSW 20	SSE 10	SSE 10	S 19	SSE 10
kJ	12	14	14	27	17	37	37	37	10	—	20	20	—	—	38	12	19	436	76	19	19	254	33
Wind waves Height (m) Direction Period (s)	E 7	E 7	E 7	E 7	E 7	E 7	E 14	E 14	E 14	E 14	E 14	E 13	E 13	E 14	E 13	ENE 13	—	ENE 13	E 12	ENE 12	ENE 12	E 12	E 12
kJ	243	246	272	272	272	215	1315	1977	1249	1731	1172	1121	1283	1342	1247	1568	—	681	883	619	589	1194	956
Nearest Offshore or Glassy	Ko Olina Resort HAW - Oahu	Turtles Reef HAW - Oahu	Lahilahi Point HAW - Oahu	Lahilahi Point HAW - Oahu	Sewers (Maili) 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	Ko Olina Resort HAW - Oahu	Nanakuli Tracks HAW - Oahu	Turtles Reef 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	Nanakuli Blackrocks HAW - Oahu	Maili Cloudbreak HAW - Oahu	Klausmeyers HAW - Oahu	Ko Olina Resort HAW - Oahu	Reef Runway (Hickam Harbor) HAW - Oahu
Rating (10 max)	2	3	3	3	1	3	2	3	3	3	3	4	3	3	3	3	3	3	4	4	4	4	4
Distance (km)	11	12	27	27	21	11	11	11	11	11	11	13	12	11	11	11	11	11	14	21	28	11	7
Best forecast wave conditions in Oahu	Makaha	Turtles Reef	Makaha	Makaha	Makaha	Makaha	Lahilahi Point	Makaha	Makaha	Makaha	Makaha	Nanakuli Blackrocks	Makaha	Kaena Point	Kaena Point	Kaena Point	Kaena Point	Kaena Point	Kaena Point	Kaena Point	Makaha	Kaena Point	Abalolo Reef
Rating (10 max)	2	3	3	3	3	3	2	3	3	3	3	4	4	4	4	3	3	4	4	4	4	4	4
Best forecast wave conditions in United States	Ghost Tree CAL - Monterey	Infinities HAW - Kaua'i	Pakalas HAW - Kaua'i	Lincoln City Nelscott Reef Oregon North	Magics HAW - Big Island	Fullers CAL - Monterey	Hilo Breakwall HAW - Big Island	Mouse Rock CAL - San Luis Obispo	Swamis CAL - San Diego County	Apua Point HAW - Big Island	Majors Bay HAW - Kaua'i	Majors Bay HAW - Kaua'i	Tamarack Ave. CAL - San Diego County	Hilo Breakwall HAW - Big Island	Hilo Breakwall HAW - Big Island	Hilo Breakwall HAW - Big Island	Hilo Breakwall HAW - Big Island	Thousand Steps CAL - Orange County	Thousand Steps CAL - Orange County	Church CAL - Orange County	Malibu CAL - LA County	Boners CAL - San Luis Obispo	The Wedge CAL - Orange County
Rating (10 max)	4	4	4	3	3	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4
Header Global	Cathedral Rock Australia	Trial Harbour Australia	Trial Harbour Australia	Dirk Hartog Island Australia	Ahijedero Mexico	Shipwreck Bay-Supertubes New Zealand	Trial Harbour Australia	Dunedin - Bobs Beach New Zealand	Dunedin - Bobs Beach New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Captains South Africa	Bells Beach - Bowl Australia	Gerickes Point South Africa	Hanga Poukura Chile	Injidup Carpark Australia	Injidup Carpark Australia	Gas Bay Australia	Gas Bay Australia	Cow Bombie Australia	Amanzimtoti South Africa	Amanzimtoti South Africa
Rating (10 max)	5	9	9	5	4	5	5	9	9	9	7	6	5	5	6	5	8	7	9	8	7	8	7

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

Ben Mondy

Six Sun-Soaked Summer Surf Spots: Backed by 20 years of Swell and Wind Stats (and with our 20% Summer Subscription Sale)

Ben Mondy

Summer School: The Timeline of The Boardshort

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Daves Backyard surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

Daves Backyard 48 hour detailed Surf Forecast

How big are the waves at Daves Backyard today (04 Sep):

Short Range Forecast

Latest Updates

Road Testing the new Db Surf Roller Pro

Summer's Short. Life Is Long.

Roadsurfing in the Basque country

Six Sun-Soaked Summer Surf Spots: Backed by 20 years of Swell and Wind Stats (and with our 20% Summer Subscription Sale)

Summer School: The Timeline of The Boardshort

FREE! Surf-Forecast.com widget for your website