Grandma's 48 hour detailed Surf Forecast

Lat Long: 20.79° N 156.56° W

Issued: 7 pm 13 Nov 2026 (local time)

Forecast update in hr min

Today's Grandma's sea temperature is

26.4°C

Grandma's surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Surf Forecasts:

	Short Range Forecast Mostly dry. Warm (max 27°C on Sat morning, min 23°C on Fri night). Wind will be generally light.
	Fri 13			Saturday 14								Sunday 15								Mon 16
	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	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	NW 13	NW 13	NW 13	NNW 15	SE 6	E 6	NNW 16	NNW 14	NNW 14	E 6	NNW 13	NW 12	NNW 20	SE 8	NNW 16	N 16	E 7	SSW 14	SSW 14	E 7	E 7
Wave Graph
kJ	82	82	80	0	5	0	0	0	0	0	0	0	0	28	0	0	0	18	20	0	0
Wind (km/h)	NE	NNE	NNE	NE	NNE	NNE	NNE	NE	NE	NE	NE	NE	NE	NE	NNE	NNE	NE	NE	NE	NE	NE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	off	cross-off	off	off	off	off	glassy	off	off	off	off	off	off	off	off	off	off	off	off	off	off
High Tide		7:06PM0.25m				7:33AM0.71m					8:25PM0.26m				8:25AM0.68m				9:44PM0.29m
Low Tide	2:04PM0.15m			11:46PM0.11m					2:58PM0.14m			00:40AM0.15m					3:48PM0.12m			1:46AM0.19m


	—	—	—	—	6:35	—	—	—	—	—	—	—	6:35	—	—	—	—	—	—	—	6:35
	5:45	—	—	—	—	—	—	—	5:45	—	—	—	—	—	—	—	5:45	—	—	—	5:45
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	26	24	24	23	23	24	27	27	26	25	24	24	24	24	26	27	26	24	24	23	23
Feels °C	26	25	24	23	23	25	29	28	25	25	22	23	23	23	26	27	26	24	24	23	24
Swell 1 Height (m) Direction Period (s)	NW 13	NW 13	NW 13	NNW 15	NNW 17	NNW 14	NNW 16	NNW 14	NNW 14	NNW 13	NNW 13	NW 12	ESE 7	NNW 18	NNW 16	N 16	N 15	NNW 14	NNW 13	NNW 12	N 12
kJ	82	82	80	144	414	131	273	186	178	116	98	35	20	249	454	496	441	322	290	205	134
Swell 2 Height (m) Direction Period (s)	N 10	N 10	NNE 10	NNW 18	NNE 10	NNW 16	SE 6	SE 6	SE 5	N 8	SE 6	NNE 6	NW 12	SE 8	ESE 8	ESE 7	ESE 7	NNE 7	SSW 14	ESE 7	N 14
kJ	53	33	34	180	33	149	9	8	7	12	8	7	34	28	22	36	34	9	20	20	103
Swell 3 Height (m) Direction Period (s)	SE 6	SE 6	NNW 16	NNE 10	SE 6	N 10	N 10	NNE 10	N 9	SE 6	N 7	N 13	NNW 20	NW 12	N 12	N 12	NNE 7	SSW 14	S 11	NNE 6	ESE 7
kJ	8	10	105	33	5	31	17	18	14	8	8	31	75	35	46	42	9	18	9	4	20
Wind waves Height (m) Direction Period (s)	E 6	E 6	E 6	E 6	E 6	E 6	E 6	E 6	E 6	E 6	—	—	ENE 2	—	E 7	E 7	E 7	ESE 7	ESE 7	E 7	E 7
kJ	184	200	165	134	149	170	175	162	151	141	—	—	1	—	374	460	456	26	29	319	328
Nearest Offshore or Glassy	The Cove HAW - Maui	The Cove HAW - Maui	Kihei Cove HAW - Maui	Kihei Cove HAW - Maui	Ma'alaea HAW - Maui	Ma'alaea HAW - Maui	Ma'alaea HAW - Maui	Ma'alaea HAW - Maui	Kihei Cove HAW - Maui	Shark Pit HAW - Maui	Shark Pit HAW - Maui	Lahaina Breakwall/Harbour HAW - Maui	Shark Pit HAW - Maui	Sixtynine HAW - Big Island	Kua Bay HAW - Big Island	Kihei Cove HAW - Maui	Anaehoomalu Bay_A-Bay HAW - Big Island	Sixtynine HAW - Big Island	Kihei Cove HAW - Maui	Shark Pit HAW - Maui	Osterizers/Rainbows HAW - Maui
Rating (10 max)	1	1	1	1	1	1	1	1	1	1	1	1	1	2	3	1	3	3	1	1	3
Distance (km)	12	12	13	13	4	4	4	4	13	15	15	17	15	117	123	13	119	117	13	15	22
Best forecast wave conditions in Maui	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	Shark Pit	Lahaina Breakwall/Harbour	Shark Pit			Kihei Cove			Shark Pit	Shark Pit	S-Turns
Rating (10 max)	2	2	2	3	3	3	3	1	2	2	1	1	1			1			2	1	3
Best forecast wave conditions in United States	Ranches HAW - Oahu	Ranches HAW - Oahu	Boners CAL - San Luis Obispo	Ranches HAW - Oahu	Hilo Breakwall HAW - Big Island	Hilo Breakwall HAW - Big Island	Hilo Breakwall HAW - Big Island	Ranches HAW - Oahu	Ghost Tree CAL - Monterey	Ghost Tree CAL - Monterey	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Cojo CAL - Santa Barbara	Ranches HAW - Oahu	Boners CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Mouse Rock CAL - San Luis Obispo	Ghost Tree CAL - Monterey	Boners CAL - San Luis Obispo
Rating (10 max)	3	4	9	4	4	4	3	3	9	9	6	5	5	4	4	4	5	7	8	9	9
Header Global	Fullers United States	Fullers United States	Boners United States	Moss Landing United States	El Capitan United States	El Capitan United States	Luna Park Australia	Steamer Lane-Middle Peak United States	Fullers United States	Ghost Tree United States	Cojo United States	Trial Harbour Australia	Trial Harbour Australia	Trial Harbour Australia	Trial Harbour Australia	Kaka Point New Zealand	Boners United States	Fullers United States	Fullers United States	Fullers United States	Boners United States
Rating (10 max)	5	7	9	9	9	9	5	7	9	9	7	7	6	6	5	5	5	8	9	9	9

Map Icons:
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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

Short Range Forecast

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