Grandma's surf break

Grandma's surfForecast / HAW – Maui / USA

information circle48hr Weather and Surf, issued 1 am Thursday 05 Mar 2026 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
24.5° 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 6AM is: 0.3m 10s primary swell from a Northwest direction and 0.2m 5s secondary swell from a South-southeast direction (forecast issued at 01:00am March 05). An open ocean swell of 0.4m 8s is not directed at the surf break, a second open ocean swell of 1.7m 8s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (HST) & DateWave HeightWave Period
Morning (05 Mar)1ft (0.3m)5s
Afternoon (05 Mar)1ft (0.3m)6s
Evening (05 Mar)1ft (0.3m)5s

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


Updates in  hr  min  s Forecast update imminent
Thursday
05
Friday
06
Saturday
07
11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.3
NW
0.3
NW
0.3
NW
0.3
SSE
0.3
SSE
0.3
SSE
0.2
S
0.3
S
0.2
S
0.2
S
0.2
S
0.2
WNW
0.2
WNW
0.2
WNW
0.3
NW
0.3
NW
0.2
WNW
0.3
NW
0.3
NW
0.3
NW
0.2
WNW
0.2
WNW
0.2
WNW
0.2
WNW
Period(s) (?)10101056611512121214131313131313121212121212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)21211656610511111118171727271727252314141414
Wind
(km/h)
5
NW
5
N
5
ENE
5
NE
5
SW
10
S
5
S
10
SE
5
SE
0
NE
5
SE
10
E
5
SSE
5
WSW
10
SW
5
SE
10
NE
5
NE
10
NE
5
NE
5
SW
10
S
10
S
10
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassglassoffglassoncross-
on
cross-
on
crosscrossglassglasscross-
off
crossglassonglassoffglassoffglassglasscross-
on
cross-
on
cross-
off
High Tide
/ height (m)
5:05AM
0.53
5:49PM
0.54
5:35AM
0.46
6:33PM
0.55
6:05AM
0.39
7:22PM
0.56
Low Tide
/ height (m)
10:46PM
0.06
11:09AM
-0.01
11:34PM
0.10
11:37AM
-0.01
12:26AM
0.14
12:07PM
0.00
Thursday
05
Friday
06
Saturday
07
Sunrise---6:43-------6:41-------6:41----
Sunset------6:31-------6:31-------6:32-
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
Rain (mm)
------------------------
Temp. °C232323232525252524232324252525242322222325262525
Feels °C (?)252525252726272626262525262727262524232527272626
  • 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

Latest Updates

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.


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