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Surf Forecasts
Grandma's surf break

Grandma's surfForecast / HAW – Maui / USA

information circle48hr Weather and Surf, issued 1 am Wednesday 02 Apr 2025 HST
Forecast update in hr  min  s Forecast 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
25.0° C
 (Which is slightly warmer than usual)

How big are the waves at Grandma's today?

The current surf forecast for Grandma's at 4AM is: 0.3m 11s primary swell from a West-northwest direction and 0.5m 6s secondary swell from a South direction (forecast issued at 01:00am April 02). An open ocean swell of 0.4m 11s is not directed at the surf break, a second open ocean swell of 0.9m 6s is not directed at the surf break. The wind direction is predicted to be glassy.

Time (HST) & DateWave HeightWave Period
Morning (02 Apr)1ft (0.3m)10s
Afternoon (02 Apr)1.5ft (0.4m)16s
Evening (02 Apr)1.5ft (0.5m)16s

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

Hourly12 Days
Maui Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 
Wednesday
02
Thursday
03
Friday
04
Saturday
05
Sunday
06
Monday
07
Tuesday
08
Wednesday
09
11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM
Rating
(10 max)
1
0
0
0
0
0
0
1
1
1
1
1
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.4
SW
0.3
WNW
0.5
S
0.5
S
0.4
SW
0.4
SW
0.5
SW
0.5
SW
0.4
SSW
0.4
SSW
0.4
SSW
0.4
SW
0.4
SW
0.4
SSW
0.4
SSW
0.4
SSW
0.4
SSW
0.4
SSW
0.4
SSW
0.4
SSW
0.4
SSW
0.4
SW
0.4
SW
0.4
SW
0.4
SW
0.4
SW
0.3
SSW
0.3
SSW
0.3
SSE
0.3
SSW
0.3
SSW
0.3
SSW
0.2
SSW
0.2
SSW
0.3
SSW
0.3
SSW
0.3
SSW
0.3
SSW
0.2
SSW
0.2
SSW
0.3
SSW
0.4
SSW
0.4
SSW
0.4
SSW
0.5
SSW
0.4
SSW
0.4
SW
0.5
S
0.5
S
0.5
S
0.5
S
0.5
S
0.4
SSW
0.5
S
0.5
S
0.5
S
0.4
SW
0.4
SSW
0.4
SSW
0.4
SSW
Period(s) (?)181166161616161616161615151515151514141414141413131313615151414131313131313161618181818181717161616161616161516151515
Wave
Graph
(?)Metric surfscale
Energy (?)80222220666612712710010010064578685848484828180514947464534346424241201734343434172550104124123178104751511371341321328613112411373737372
Wind
(km/h)
5
ENE
5
NE
5
S
0
NW
10
SSW
15
WSW
10
W
5
NW
5
NE
5
ESE
5
N
5
NNW
15
WNW
10
WSW
10
W
0
NNE
5
SE
10
ENE
5
NNE
5
NNE
5
WSW
5
ENE
5
E
15
NNE
10
NE
15
NE
10
NNE
5
NNE
0
S
15
E
15
NNE
10
NE
10
NNE
10
NNE
5
NNE
5
NE
5
NW
10
ENE
10
E
10
NNE
10
NNE
10
NNE
10
NE
10
NNE
0
N
10
NE
5
ENE
15
NNE
10
NNE
10
NNE
10
NNE
10
NE
5
NNW
10
E
20
NNE
15
NNE
20
NE
15
NNE
15
NE
20
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassglassglassglassononcross-
on		glassoffcross-
off		glassglasscross-
on		cross-
on		cross-
on		glassglassoffoffglassglassglasscross-
off		offoffoffoffcross-
off		glasscross-
off		cross-
off		offoffoffcross-
off		offglasscross-
off		cross-
off		offoffoffoffoffglassoffoffcross-
off		offoffoffoffcross-
off		cross-
off		offoffoffoffoffoff
High Tide
/ height (m)
6:51AM
0.25
8:10PM
0.69
8:08AM
0.20
9:19PM
0.68
9:46AM
0.20
10:27PM
0.66
11:11AM
0.23
11:30PM
0.65
12:15PM
0.28
12:23AM
0.64
1:06PM
0.34
1:09AM
0.61
1:49PM
0.41
1:48AM
0.58
Low Tide
/ height (m)
1:59AM
0.12
12:20PM
-0.02
3:35AM
0.12
1:12PM
0.02
5:15AM
0.11
2:17PM
0.05
6:19AM
0.09
3:37PM
0.09
6:59AM
0.07
4:58PM
0.09
7:28AM
0.05
6:10PM
0.09
7:51AM
0.04
7:09PM
0.09
Wednesday
02
Thursday
03
Friday
04
Saturday
05
Sunday
06
Monday
07
Tuesday
08
Wednesday
09
Sunrise---6:18-------6:16-------6:16-------6:16-------6:15-------6:13-------6:13-------6:11
Sunset------6:40-------6:40-------6:40-------6:42-------6:42-------6:42-------6:42-----
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Rain (mm)
------------------------------------------------------------
Temp. °C252424242525242524232324262525252423232426262624232322242626252424232324262627252423222426262624232222232626252423222324
Feels °C (?)272626272625242725242526262626282624242627282724242322252826242525242526282628262524222528272724242323232727242422222323
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
<span class="translation_missing" title="translation missing: en.leaflet.map_placeholder_alt">Map Placeholder Alt</span>

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 Grandma's 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.

View detailed surf forecast for Grandma's at:
surf-forecast.com

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