Grandma's Surf Forecast

/ HAW – Maui (46 breaks) / Hawaii (267 breaks) /

USA (1296 breaks)

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Grandma's Surf Forecast / HAW – Maui / USA

48hr Weather and Surf, issued 1 am Thursday 15 Apr 2021 HST

Forecast update in hr min s Update imminent

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

Today's Grandma's sea temperature is 24.3 °C (Statistics for 15 Apr 1981-2005 - mean: 24.5 max: 25.3 min: 23.4 °C)

Break

Live Wave Height (m)

Live Wind Speed (km/h)

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

Today's Grandma's sea temperature is 24.3 °C (Statistics for 15 Apr 1981-2005 - mean: 24.5 max: 25.3 min: 23.4 °C)

Recent Eyeball Surf Reports for HAW - Maui

Wind Update Offshore wind has become cross-off at Grandma's (light winds from the ENE at BUOY-KLIH1 15 km from Grandma's).
1 hour 19 minutes ago Grandma's

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1 h 19 min ago

18 km/h

ENE

Cross-Off

Please reload the page to see if there are any updates.

How big are the waves at Grandma's today?

The current surf forecast for Grandma's at 3AM is: 0.6m 14s primary swell from a South-southwest direction (forecast issued at 01:00am April 15). An open ocean swell of 0.3m 6s is not directed at the surf break, a second open ocean swell of 0.9m 5s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.

Time (HST) & Date	Wave Height	Wave Period
Morning (15 Apr)	1.5ft (0.4m)	13s
Afternoon (15 Apr)	1.5ft (0.4m)	13s
Evening (15 Apr)	1ft (0.3m)	24s

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

Hourly 12 days Maui Surf

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Updates in hr min s Update imminent



Rating (10 max)
Swell Height Map See all maps
Wave Height (m) & direction (?)
Period(s) (?)
Wave Graph (?)
Energy (?)
Wind (km/h)
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy
High Tide / height (m)
Low Tide / height (m)





Summary
Rain (mm)
Temp. °C
Chill °C (?)
Sunrise
Sunset

	Thursday 15								Friday 16								Saturday 17								Sunday 18								Monday 19								Tuesday 20								Wednesday 21								Thursday 22
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	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	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


SSW	SSW	SSW	SSW	SW	SSW	SW	SW	SW	SSW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SSW	SW	SW	SW	SW	SW	SSW	SSW	SSW	SSW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SSW	SSW	SW	SW	SW	SSW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW
14	14	14	13	15	13	24	24	24	12	15	22	21	21	21	21	20	20	20	19	19	19	19	18	18	18	18	18	17	17	17	16	16	16	16	16	16	16	16	15	15	15	15	15	14	14	14	14	14	14	14	14	13	13	19	13	13	13	12	18

165	163	111	67	59	68	102	98	98	52	34	118	162	224	162	115	101	186	186	184	251	183	173	157	154	154	207	204	202	200	140	130	127	125	124	124	124	122	119	110	106	104	84	84	54	53	52	79	51	50	48	46	46	45	59	45	44	43	39	79
NNE	NE	NNE	NNE	N	NNE	NNE	NNE	NNE	NE	NNE	NNE	NNW	N	NNE	NNE	NE	NNE	NNE	NNE	NNE	NNE	NNE	NNE	NNE	NNE	NE	NNE	WNW	SE	NE	NNE	NE	NNE	N	E	WSW	SSW	ESE	SSE	N	NW	N	ENE	SSW	SSE	SE	ENE	NNW	N	NNW	NNE	SSW	SSE	SSE	SE	NW	ENE	SE	E
off	off	off	off	cross- off	off	cross- off	cross- off	off	off	off	off	glass	cross- off	cross- off	off	off	off	off	off	cross- off	off	cross- off	off	cross- off	off	off	off	glass	glass	glass	glass	glass	glass	glass	glass	glass	cross- on	glass	glass	glass	glass	glass	glass	glass	glass	cross	glass	glass	glass	glass	glass	cross- on	glass	glass	glass	glass	glass	glass	glass
			5:52AM 0.30				6:46PM 0.62				6:38AM 0.26				7:37PM 0.61				7:45AM 0.22					8:36PM 0.61				9:16AM 0.21				9:39PM 0.61				10:40AM 0.23				10:41PM 0.61					11:44AM 0.27				11:36PM 0.62				12:34PM 0.32				12:26AM 0.62
	12:29AM 0.11				11:25AM 0.02				1:27AM 0.12				12:03PM 0.05					2:37AM 0.13			12:47PM 0.07					3:56AM 0.12			1:43PM 0.09						5:07AM 0.10			2:53PM 0.11					5:57AM 0.07			4:09PM 0.11					6:34AM 0.04				5:22PM 0.10				7:06AM 0.01
Note: the tide data above is for Kihei, Maui (Hawaii) which is 9 km away. Surf properties and timing are calculated for Grandma's.New forecast is published every 6 hours at www.surf-forecast.com. See detailed tide info and graph Offshore winds at Grandma's blow from the NE

	Thursday 15								Friday 16								Saturday 17								Sunday 18								Monday 19								Tuesday 20								Wednesday 21								Thursday 22
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	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	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

clear	some clouds	some clouds	clear	clear	clear	clear	clear	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	clear	clear	clear	clear	clear	clear	some clouds	clear	some clouds	some clouds	some clouds	some clouds	clear	clear	some clouds	some clouds	some clouds	clear	clear	clear	clear	clear	clear	some clouds	clear	clear	clear	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	clear	clear	clear	some clouds	clear	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
22	21	21	22	24	24	24	22	22	22	21	22	23	23	23	21	21	21	20	22	24	24	23	22	22	21	21	22	24	25	25	23	23	23	22	23	25	25	25	24	23	23	23	23	25	25	25	24	23	23	23	23	25	25	25	25	24	23	23	24
22	21	21	22	24	24	24	22	22	22	21	22	23	23	23	21	21	21	20	22	24	24	23	22	22	21	21	22	24	25	25	23	23	23	22	23	25	25	25	24	23	23	23	23	25	25	25	24	23	23	23	23	25	25	25	25	24	23	23	24
-	-	-	6:07	-	-	-	-	-	-	-	6:05	-	-	-	-	-	-	-	6:05	-	-	-	-	-	-	-	6:05	-	-	-	-	-	-	-	6:03	-	-	-	-	-	-	-	6:03	-	-	-	-	-	-	-	6:01	-	-	-	-	-	-	-	6:01
-	-	-	-	-	-	6:45	-	-	-	-	-	-	-	6:45	-	-	-	-	-	-	-	6:45	-	-	-	-	-	-	-	6:45	-	-	-	-	-	-	-	6:45	-	-	-	-	-	-	-	6:45	-	-	-	-	-	-	-	6:46	-	-	-	-	-

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