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Surf Forecasts:

Grandma's surf break

Grandma's surfForecast / HAW – Maui / USA

information circle48hr Weather and Surf, issued 1 am Sunday 23 Nov 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
26.2° C
 (Which is normal for this time of year)

How big are the waves at Grandma's today?

The current surf forecast for Grandma's at 9AM is: 0.8m 14s primary swell from a Northwest direction and 0.3m 11s secondary swell from a South-southeast direction (forecast issued at 01:00am November 23). An open ocean swell of 0.9m 6s is not directed at the surf break. The wind direction is predicted to be glassy and the swell rating is 2.

Time (HST) & DateWave HeightWave Period
Morning (23 Nov)2.5ft (0.8m)14s
Afternoon (23 Nov)1ft (0.3m)11s
Evening (23 Nov)2ft (0.6m)13s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Sunday
23
Monday
24
Tuesday
25
11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM
Rating
(10 max)
2
2
2
2
1
2
0
1
1
1
1
1
0
1
1
1
1
1
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.9
NW
0.9
NW
0.8
NW
0.8
NW
0.8
NW
0.8
NW
0.3
SSE
0.6
NW
0.6
NW
0.6
NW
0.6
NW
0.6
NW
0.3
SSE
0.5
NW
0.5
NW
0.5
NW
0.5
NW
0.5
NW
0.3
SSE
0.3
SSE
0.3
SSE
0.3
S
0.3
SSE
0.3
SSE
Period(s) (?)161515141414111313131313101212121212101010101111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)36234426225124824523144142140138134207572716968191919162524
Wind
(km/h)
5
N
5
NNE
5
NE
5
NNE
5
WNW
5
W
5
WNW
10
N
10
NE
10
NNE
10
NE
5
NE
5
W
5
SW
0
SSW
5
NE
5
NNE
0
N
5
ENE
0
NE
0
WNW
5
NE
5
NNE
5
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		glassglassoffcrossglassglasscross-
off		offoffoffoffglassglassglassoffglassglassglassglassglassglasscross-
off		glass
High Tide
/ height (m)
6:08AM
0.76
6:19PM
0.23
6:51AM
0.73
7:28PM
0.23
7:37AM
0.71
Low Tide
/ height (m)
10:26PM
0.05
1:25PM
0.12
11:07PM
0.08
2:16PM
0.12
11:54PM
0.11
3:03PM
0.10
Sunday
23
Monday
24
Tuesday
25
Sunrise---6:41-------6:41-------6:41----
Sunset------5:44-------5:43-------5:43-
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
Rain (mm)
------------------------
Temp. °C252424242626252523232323252625242424232425262524
Feels °C (?)282727262829282724242424262827262727252728282727
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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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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