Big Lefts 48 hour detailed Surf Forecast

Lat Long: 21.29° N 157.85° W

Issued: 7 am 12 Sep 2026 (local time)

Forecast update in hr min

Today's Big Lefts sea temperature is

27.4°C

Big Lefts 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 Big Lefts today (12 Sep):

Morning surf: Morning surf (12 Sep, local time) - 2.5ft (0.7m), 15s period with SW swell.
Afternoon surf: Afternoon surf (12 Sep, local time) - 1.5ft (0.5m), 16s period with SW swell.
Evening surf: Evening surf (12 Sep, local time) - 1.5ft (0.4m), 16s period with SSW swell.

The current surf forecast for Big Lefts at 2PM is: 0.5m 16s primary swell from a Southwest direction and 0.7m 10s secondary swell from a East-northeast direction (forecast issued at 07:00am September 12). An open ocean swell of 0.7m 9s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (HST) & Date	Wave Height	Wave Period
Morning (12 Sep)	2.5ft (0.7m)	15s
Afternoon (12 Sep)	1.5ft (0.5m)	16s
Evening (12 Sep)	1.5ft (0.4m)	16s

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

	Short Range Forecast Mostly dry. Warm (max 26°C on Sat morning, min 24°C on Sun night). Wind will be generally light.
	Saturday 12							Sunday 13								Monday 14
	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)	2	2	2	2	2	1	1	0	2	0	0	0	0	0	0	0	0	0	0	1	1	1	1
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SW 15	SW 15	SW 15	SW 16	SW 16	SW 16	ENE 9	ENE 9	SSW 14	ENE 9	SW 15	SSW 15	SSW 15	SW 14	SW 12	SW 12	SW 14	SW 14	SW 23	SW 22	SW 22	SW 22	SSW 21
Wave Graph
kJ	223	223	242	122	124	124	116	84	121	32	107	84	84	54	37	38	97	54	86	237	227	227	180
Wind (km/h)	NE	NE	ENE	ENE	ENE	NE	ENE	ENE	ENE	ENE	ENE	ENE	NE	NE	ENE	ENE	NE	ENE	ENE	ENE	NE	NE	NE
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	4:51AM0.54m				4:42PM0.50m					5:31AM0.57m				5:11PM0.43m				6:14AM0.58m				5:40PM0.36m
Low Tide			10:52AM0.13m				10:56PM0.05m					11:45AM0.17m				11:19PM0.06m				12:45PM0.20m


	6:16	—	—	—	—	—	—	—	6:16	—	—	—	—	—	—	—	6:18	—	—	—	—	—	—
	—	—	—	—	6:37	—	—	—	—	—	—	—	6:36	—	—	—	—	—	—	—	6:35	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	25	25	26	26	26	26	25	25	25	25	26	26	26	25	25	24	24	25	26	26	26	25	25
Feels °C	26	25	26	26	26	26	25	26	26	26	26	26	26	24	25	24	24	24	25	25	25	25	25
Swell 1 Height (m) Direction Period (s)	ENE 10	ENE 10	ENE 10	ENE 10	NE 9	NNE 9	NNE 9	NNE 9	NNE 9	NNE 9	NNE 9	NNE 9	NNE 9	NE 9	NE 9	NE 9	NE 8	NE 9	NE 8	NE 8	SW 22	NE 8	NE 8
kJ	167	131	128	100	81	101	101	99	99	99	99	99	99	95	93	79	86	77	58	55	227	54	53
Swell 2 Height (m) Direction Period (s)	SW 15	SW 15	NE 8	NE 9	ENE 10	SW 16	SSW 16	ENE 9	ENE 9	E 5	E 5	SSW 15	SSW 15	ENE 8	SW 12	SW 12	SW 14	SW 14	SW 14	SW 22	SW 14	SSW 14	SSW 13
kJ	223	223	74	79	98	124	98	84	84	17	17	84	84	24	37	38	97	50	49	237	49	71	69
Swell 3 Height (m) Direction Period (s)	NE 8	NE 8	SW 15	SW 16	SW 16	SSW 13	SSW 13	SSW 13	SSW 14	ENE 9	SW 15	ENE 9	SW 12	SW 14	ENE 8	ENE 8	SSW 24	SSW 24	SW 23	SW 14	SSW 11	SW 22	SSW 21
kJ	64	67	242	122	124	69	69	68	121	32	107	31	37	54	14	14	54	54	86	49	12	227	180
Wind waves Height (m) Direction Period (s)	—	—	—	—	—	ENE 10	ENE 9	ENE 5	E 5	—	—	E 5	ENE 9	ENE 4	ENE 4	ENE 4	E 4	ENE 4	ENE 5	ENE 5	NE 8	ENE 5	ENE 5
kJ	—	—	—	—	—	94	116	13	15	—	—	11	59	7	11	13	13	20	33	38	171	27	24
Nearest Offshore or Glassy	Ala Moana Courts HAW - Oahu	Ala Moana Courts HAW - Oahu	Ala Moana Courts HAW - Oahu	Ala Moana Courts HAW - Oahu	Ala Moana Courts HAW - Oahu	Ala Moana Courts HAW - Oahu	Ala Moana Courts HAW - Oahu	Ala Moana Courts HAW - Oahu	Ala Moana Courts HAW - Oahu	Ala Moana Bowls HAW - Oahu	Reef Runway (Hickam Harbor) HAW - Oahu	Ko Olina Resort HAW - Oahu	Ala Moana Courts HAW - Oahu	Ala Moana Courts HAW - Oahu	Reef Runway (Hickam Harbor) HAW - Oahu	Abalolo Reef HAW - Oahu	Ala Moana Courts HAW - Oahu	Barber's Point - Coast Guard Jetty HAW - Oahu	Ko Olina Resort HAW - Oahu	Paradise HAW - Oahu	Ala Moana Courts HAW - Oahu	Ala Moana Courts HAW - Oahu	Ala Moana Courts HAW - Oahu
Rating (10 max)	2	2	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	2	2	2	2
Distance (km)	0	0	0	0	0	0	0	0	0	1	11	29	0	0	11	5	0	26	29	3	0	0	0
Best forecast wave conditions in Oahu	Pipeline	Pipeline	Pipeline	Pipeline	Consessions/Big Rights	Ranches	Jockos Point	Pipeline	Pipeline	Pipeline	Pipeline	Pipeline	Ranches	Ranches	Ranches	Ranches	Pipeline	Ranches	Ranches	Kaena Point	Ranches	Ranches	Ranches
Rating (10 max)	2	2	2	2	2	2	2	2	2	2	2	2	1	1	1	1	2	1	1	2	2	2	2
Best forecast wave conditions in United States	Mouse Rock CAL - San Luis Obispo	Pipeline HAW - Oahu	Pipeline HAW - Oahu	Pipeline HAW - Oahu	Consessions/Big Rights HAW - Oahu	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Pipeline HAW - Oahu	Pipeline HAW - Oahu	Pipeline HAW - Oahu	Super Tubes CAL - Ventura	Boners CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Mouse Rock 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
Rating (10 max)	2	2	2	2	2	2	3	3	3	2	2	2	2	4	3	3	3	1	1	2	2	4	3
Header Global	Asu Indonesia	Asu Indonesia	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Mangahume New Zealand	Papatowai New Zealand	Frigates Fiji	Fish Boma South Africa	Fish Boma South Africa	Papatowai New Zealand	Cobblestones Australia	Noises Australia	Restaurants Fiji	Frigates Fiji	Gas Bay Australia	Cintsa West South Africa	Hole-in-the-Wall South Africa	Cobblestones Australia	Cobblestones Australia	Supertubes Australia	Gas Bay Australia
Rating (10 max)	5	5	9	9	9	8	7	6	5	5	5	5	6	6	5	6	6	6	8	5	5	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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Big Lefts 48 hour detailed Surf Forecast

How big are the waves at Big Lefts today (12 Sep):

Short Range Forecast

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