Grandma's 48 hour detailed Surf Forecast

Lat Long: 20.79° N 156.56° W

Issued: 7 am 05 Nov 2026 (local time)

Forecast update in hr min

Today's Grandma's sea temperature is

26.9°C

Grandma's 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 Grandma's today (05 Nov):

Morning surf: Morning surf (05 Nov, local time) - 1.5ft (0.4m), 16s period with SSW swell.
Afternoon surf: Afternoon surf (05 Nov, local time) - 1.5ft (0.4m), 16s period with SSW swell.
Evening surf: Evening surf (05 Nov, local time) - 1.5ft (0.4m), 16s period with SSW swell.

The current surf forecast for Grandma's at 10AM is: 0.4m 16s primary swell from a South-southwest direction (forecast issued at 07:00am November 05). An open ocean swell of 1.2m 17s is not directed at the surf break, a second open ocean swell of 0.4m 6s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (HST) & Date	Wave Height	Wave Period
Morning (05 Nov)	1.5ft (0.4m)	16s
Afternoon (05 Nov)	1.5ft (0.4m)	16s
Evening (05 Nov)	1.5ft (0.4m)	16s

Table - waves today at Grandma's. (Swell directed towards the surf break)

	Short Range Forecast Light rain (total 2mm), mostly falling on Fri afternoon. Warm (max 27°C on Thu morning, min 23°C on Sat night). Wind will be generally light.
	Thursday 5							Friday 6								Saturday 7								Sun 8
	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	2 AM	5 AM
Rating (10 max)	1	1	1	1	1	1	1	1	1	2	2	1	1	1	1	1	0	1	1	1	1	1	1	1	1
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SSW 16	SSW 16	SSW 16	SSW 16	SW 16	SSW 16	SSW 16	SSW 15	SSW 15	NW 14	NW 14	SSW 16	SSW 15	SSW 15	SSW 15	SSW 15	SSW 15	SSW 14	SSW 14	SSW 14	SSW 14	SSW 14	NW 12	SSW 13	SSW 13
Wave Graph
kJ	104	103	100	100	65	98	95	92	88	305	305	82	79	73	74	72	72	77	73	61	71	61	69	57	54
Wind (km/h)	NNE	NE	NE	NNE	NE	NE	NNE	NNE	NNE	NNE	NNE	NNE	NE	NNE	NNE	NNE	NE	NE	NNE	NNE	NNE	NNE	NE	NNE	NE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	off	off	off	off	off	off	off	off	off	off	off	off	off	off	off	off	off	off	off	off	off	off	off	off	off
High Tide				1:11PM0.53m					2:13AM0.66m			1:53PM0.47m					2:51AM0.72m				2:33PM0.42m				3:28AM0.76m
Low Tide		7:18AM0.19m				7:16PM0.02m					8:19AM0.17m			7:43PM0.00m					9:13AM0.16m				8:10PM-0.00m


	6:30	—	—	—	—	—	—	—	6:31	—	—	—	—	—	—	—	6:31	—	—	—	—	—	—	—	6:31
	—	—	—	—	5:47	—	—	—	—	—	—	—	5:47	—	—	—	—	—	—	—	5:47	—	—	—	5:46
mm	—	—	—	—	—	—	—	—	—	—	—	1	1	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	24	25	27	27	26	25	25	24	24	25	26	27	26	25	24	24	24	25	26	27	25	24	24	23	23
Feels °C	25	25	28	27	26	25	26	24	24	26	27	28	27	25	24	23	22	24	25	26	23	23	23	23	24
Swell 1 Height (m) Direction Period (s)	NNW 19	NW 18	NNW 17	NNW 17	NNW 16	NNW 16	NW 16	NNW 16	NNW 15	NW 14	NW 14	NNW 14	NNW 14	NW 14	NW 14	NW 13	NW 13	NNW 13	NNW 13	NNW 13	NNW 12	NNW 12	NNW 15	NNW 14	NNW 12
kJ	617	727	789	735	691	666	565	499	377	305	305	264	261	203	189	183	175	149	147	142	131	96	125	180	241
Swell 2 Height (m) Direction Period (s)	N 12	N 12	SSW 16	SSW 16	SW 16	SSW 16	SSW 16	SSW 15	SSW 15	SSW 15	SW 15	ESE 10	SSW 15	SE 7	ESE 7	SSW 15	SSW 15	SSW 14	SSW 14	SSW 14	SSW 14	NNW 15	NW 12	NNW 12	SSW 13
kJ	72	71	100	100	65	98	95	92	88	86	57	38	79	12	19	72	72	77	73	61	71	88	69	54	54
Swell 3 Height (m) Direction Period (s)	SSW 16	SSW 16	N 11	NNW 11	NNW 11	NNE 8	NNE 7	ESE 6	NNE 6	NNE 6	SE 6	SSW 16	SE 10	SSW 15	SSW 15	SE 10	SE 10	NNE 6	SE 7	SE 7	SE 9	SSW 14	SSW 13	SSW 13	SE 6
kJ	104	103	62	39	22	6	5	10	8	8	10	82	24	73	74	23	23	11	12	13	22	61	59	57	9
Wind waves Height (m) Direction Period (s)	E 7	SE 6	E 7	E 7	ESE 6	E 6	ESE 7	E 8	E 8	E 9	E 9	E 9	E 9	E 7	NNE 5	NNE 6	NNE 6	ENE 2	E 7	E 6	NNE 6	NNE 6	NNE 6	E 6	E 6
kJ	225	10	285	328	23	18	15	298	513	702	575	619	551	442	6	10	12	1	297	141	10	11	11	253	205
Nearest Offshore or Glassy	Ma'alaea HAW - Maui	The Cove HAW - Maui	Ma'alaea HAW - Maui	Ma'alaea HAW - Maui	The Cove HAW - Maui	The Cove HAW - Maui	The Cove HAW - Maui	The Cove HAW - Maui	The Cove HAW - Maui	The Cove HAW - Maui	The Cove HAW - Maui	The Cove HAW - Maui	The Cove HAW - Maui	The Cove HAW - Maui	The Cove HAW - Maui	The Cove HAW - Maui	Kawaihae Breakwater HAW - Big Island	The Cove HAW - Maui	The Cove HAW - Maui	The Cove HAW - Maui	The Cove HAW - Maui	The Cove HAW - Maui	The Cove HAW - Maui	The Cove HAW - Maui	Ma'alaea HAW - Maui
Rating (10 max)	1	2	1	1	1	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Distance (km)	4	12	4	4	12	12	12	12	12	12	12	12	12	12	12	12	111	12	12	12	12	12	12	12	4
Best forecast wave conditions in Maui	Lahaina Breakwall/Harbour	Kihei Cove	Ma'alaea	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Shark Pit		Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour	Lahaina Breakwall/Harbour
Rating (10 max)	4	2	1	4	4	4	4	4	4	3	3	3	3	3	3	1		2	2	2	2	3	3	3	3
Best forecast wave conditions in United States	Ranches HAW - Oahu	Cortez Bank CAL - San Diego County	Ranches HAW - Oahu	Ranches HAW - Oahu	Ranches HAW - Oahu	Lincoln City Nelscott Reef Oregon North	Mouse Rock CAL - San Luis Obispo	Ghost Tree CAL - Monterey	Ghost Tree CAL - Monterey	Mouse Rock CAL - San Luis Obispo	Ranches HAW - Oahu	Fullers CAL - Monterey	Ghost Tree CAL - Monterey	Ghost Tree CAL - Monterey	Ghost Tree CAL - Monterey	Ghost Tree CAL - Monterey	Ghost Tree CAL - Monterey	Cortez Bank CAL - San Diego County	Ranches HAW - Oahu	Steamer Lane-Middle Peak CAL - Santa Cruz	Mouse Rock CAL - San Luis Obispo	Boners CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo
Rating (10 max)	5	4	5	5	5	8	4	5	5	4	4	5	5	5	5	5	5	5	3	4	4	4	4	4	4
Header Global	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Grindavik Antenas Iceland	Ranches United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Haga-Haga South Africa	Fullers United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Cortez Bank United States	Fish Boma South Africa	Fish Boma South Africa	Barbel Point South Africa	Barrancon Chile	Anawhata Road (Oaonui) New Zealand	Anawhata Road (Oaonui) New Zealand	Angourie Point Australia
Rating (10 max)	5	5	5	5	8	8	7	6	7	8	5	5	9	8	7	6	6	5	5	5	4	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)

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Grandma's 48 hour detailed Surf Forecast

How big are the waves at Grandma's today (05 Nov):

Short Range Forecast

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