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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 19 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
26.1° 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 8AM is: 0.5m 14s primary swell from a Northwest direction and 0.3m 11s secondary swell from a Northwest direction (forecast issued at 01:00am November 19). An open ocean swell of 1.3m 5s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (HST) & DateWave HeightWave Period
Morning (19 Nov)1.5ft (0.5m)14s
Afternoon (19 Nov)1.5ft (0.5m)14s
Evening (19 Nov)2.5ft (0.8m)14s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Wednesday
19
Thursday
20
Friday
21
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)
1
1
1
1
1
1
1
0
1
2
2
2
2
1
0
1
1
1
1
1
1
0
1
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.4
SW
0.4
NW
0.5
NW
0.5
NW
0.5
NW
0.5
NW
0.6
NW
0.3
S
0.8
NW
0.9
NW
0.9
NW
0.9
NW
0.9
NW
0.3
SSE
0.4
SE
0.6
NW
0.6
NW
0.6
NW
0.4
SSE
0.5
NW
0.5
NW
0.4
SSE
0.5
NW
0.5
NW
Period(s) (?)12151514141414111414131313158131313141313131317
Wave
Graph
(?)Metric surfscale
Energy kJ (?)377710410293891472323126826125725743201441441446285845885137
Wind
(km/h)
10
NNE
15
NNE
15
NE
20
NNE
15
NE
5
NNE
5
NE
15
NE
10
NE
10
NNE
10
NE
10
NNE
0
NNW
0
NE
5
NE
10
NNE
10
NNE
10
NNE
5
NNE
5
NNE
5
W
5
SSE
5
SSW
5
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffoffoffoffcross-
off		offoffoffoffoffoffglassglassoffoffoffcross-
off		cross-
off		glassglasscross-
on		glassglass
High Tide
/ height (m)
3:37AM
0.76
3:19PM
0.33
4:12AM
0.77
3:58PM
0.30
4:49AM
0.78
4:39PM
0.27
Low Tide
/ height (m)
8:11PM
-0.00
10:18AM
0.15
8:42PM
0.00
11:02AM
0.14
9:15PM
0.01
11:47AM
0.13
Wednesday
19
Thursday
20
Friday
21
Sunrise---6:37-------6:39-------6:39----
Sunset------5:44-------5:44-------5:44-
part cloud
part cloud
part cloud
part cloud
rain showers
light rain
cloud
light rain
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
part cloud
thunderstorm
part cloud
part cloud
Rain (mm)
----11-2-------------1--
Temp. °C242424242525252424242424262726252424242426262625
Feels °C (?)262525242527272526252525293028272526272729282928
  • 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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