Kanaha 48 hour detailed Surf Forecast

Lat Long: 20.90° N 156.44° W

Issued: 1 am 18 Jul 2026 (local time)

Forecast update in hr min

Today's Kanaha sea temperature is

26.3° C

Kanaha 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 Kanaha today (18 Jul):

Morning surf: Morning surf (18 Jul, local time) - 5ft (1.6m), 7s period with ENE swell.
Afternoon surf: Afternoon surf (18 Jul, local time) - 5.5ft (1.7m), 8s period with ENE swell.
Evening surf: Evening surf (18 Jul, local time) - 5ft (1.5m), 8s period with E swell.

The current surf forecast for Kanaha at 8AM is: 1.6m 7s primary swell from a East-northeast direction and 0.3m 13s secondary swell from a West-northwest direction (forecast issued at 01:00am July 18). An open ocean swell of 0.1m 15s 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)	5ft (1.6m)	7s
Afternoon (18 Jul)	5.5ft (1.7m)	8s
Evening (18 Jul)	5ft (1.5m)	8s

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

	Short Range Forecast Mostly dry. Warm (max 27°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	1	1	1	1	1	1	1	1	1	1	1	1	1	1	0	1	1	1	1	0	1	0	1
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	E 6	E 7	ENE 7	ENE 8	ENE 8	ENE 8	ENE 8	E 8	ENE 8	E 8	E 8	E 8	ENE 8	ENE 8	ENE 8	E 8	E 8	ENE 8	ENE 8	ENE 8	ENE 7	ENE 7	ENE 7	ENE 7
Wave Graph
kJ	184	222	269	318	375	341	359	309	280	228	228	191	238	238	206	127	153	151	143	186	193	188	160	127
Wind (km/h)	E	ENE	E	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	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	cross-off
High Tide			5:17AM0.56m				5:32PM0.81m				6:25AM0.56m				5:50PM0.73m				7:52AM0.58m				5:59PM0.66m
Low Tide	11:54PM0.27m			10:46AM0.27m					00:26AM0.25m				11:28AM0.39m				00:59AM0.24m				12:20PM0.49m


	—	5:54	—	—	—	—	—	—	—	5:54	—	—	—	—	—	—	—	5:54	—	—	—	—	—	—
	—	—	—	—	—	7:08	—	—	—	—	—	—	—	7:08	—	—	—	—	—	—	—	7:07	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	25	25	25	27	27	26	25	25	24	24	25	26	26	26	25	25	24	24	25	26	26	26	25	25
Feels °C	25	25	25	27	27	26	25	25	24	24	25	25	25	25	25	25	24	25	26	27	27	27	25	26
Swell 1 Height (m) Direction Period (s)	NNE 8	NNE 7	WNW 13	WNW 13	WNW 13	WNW 13	WNW 13	NNE 8	WNW 13	NNE 6	NNE 6	NNE 7	W 12	W 12	W 12	NNE 8	NNE 8	NNE 8	NNE 8	W 12	SW 18	SW 18	E 13	E 12
kJ	21	17	34	34	34	34	34	12	33	13	23	42	11	11	11	54	35	23	23	11	12	12	13	12
Swell 2 Height (m) Direction Period (s)	WNW 13	WNW 13	SW 15	SW 15	NE 9	NNE 8	NNE 8	WNW 13	SW 14	NNE 8	W 12	W 12	W 20	W 20	W 19	W 12	W 12	W 12	W 12	SW 18	W 12	W 12	W 12	W 12
kJ	60	35	9	9	3	14	13	33	8	12	12	11	8	7	7	11	11	11	11	13	10	11	11	11
Swell 3 Height (m) Direction Period (s)	SW 16	SW 16	N 9	NE 9	SW 15	SW 15	SW 15	SW 14	W 21	WNW 13	SW 14	W 20	SW 14	S 14	S 13	W 19	SW 19	SW 19	SW 18	E 14	E 13	E 13	SW 18	SW 17
kJ	10	9	2	3	9	8	8	8	9	16	8	8	7	4	4	7	14	14	13	4	3	13	12	12
Wind waves Height (m) Direction Period (s)	E 6	E 7	ENE 7	ENE 8	ENE 8	ENE 8	ENE 8	E 8	ENE 8	E 8	E 8	E 8	ENE 8	ENE 8	ENE 8	E 8	E 8	ENE 8	ENE 8	ENE 8	ENE 7	ENE 7	ENE 7	ENE 7
kJ	184	222	269	318	375	341	359	309	280	228	228	191	238	238	206	127	153	151	143	186	193	188	160	127
Nearest Offshore or Glassy	Ma'alaea HAW - Maui	Ma'alaea HAW - Maui	Ma'alaea HAW - Maui	Ma'alaea HAW - Maui	Ma'alaea HAW - Maui	Ma'alaea HAW - Maui	Ma'alaea HAW - Maui	Ma'alaea HAW - Maui	Kihei Cove HAW - Maui	Ma'alaea HAW - Maui	Ma'alaea HAW - Maui	Ma'alaea HAW - Maui	Kihei Cove HAW - Maui	Ma'alaea HAW - Maui	Kihei Cove HAW - Maui	Ma'alaea HAW - Maui	Kanaha HAW - Maui	Kanaha HAW - Maui	Kanaha HAW - Maui	Kanaha HAW - Maui	Ma'alaea HAW - Maui	Ma'alaea HAW - Maui	Ma'alaea HAW - Maui	Kanaha HAW - Maui
Rating (10 max)	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	2	2	2	1
Distance (km)	14	14	14	14	14	14	14	14	19	14	14	14	19	14	19	14	0	0	0	0	14	14	14	0
Best forecast wave conditions in Maui	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Shark Pit	Ma'alaea	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Shark Pit	Shark Pit	Shark Pit	Shark Pit	Shark Pit	Lahaina Breakwall/Harbour	Shark Pit	Shark Pit	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Shark Pit	Shark Pit	Shark Pit	Shark Pit	Shark Pit
Rating (10 max)	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	2	2	2	2	2
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	Ranches HAW - Oahu	Ranches HAW - Oahu	Super Tubes CAL - Ventura	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	Shark Pit HAW - Maui	Rincon - Rivermouth CAL - Ventura	Super Tubes CAL - Ventura	Ghost Tree CAL - Monterey	Mouse Rock CAL - San Luis Obispo
Rating (10 max)	3	3	2	1	1	1	3	3	3	3	1	1	1	1	3	3	3	3	1	2	2	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

Ben Mondy

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 Kanaha 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.

Kanaha 48 hour detailed Surf Forecast

How big are the waves at Kanaha today (18 Jul):

Short Range Forecast

Latest Updates

How Our WaveFinder Tool Makes Forecasting Easier Than Ever Before

The Five Best Forecasts For International Surfing Day 2026

Best Surf Travel Deals & Discounts For 2026 To Help Make Surf Travel Cheaper

Let Our Surf Alerts Do All Your Forecast Heavy Lifting

Talking To Maddie Meddings on New Film Undercurrents. (And Then Watch It!)

FREE! Surf-Forecast.com widget for your website