Grandma's Surf Break

Lat Long: 20.79° N 156.56° W

Grandma's 48 hour detailed Surf Forecast

Issued: 1 am 03 Oct 2026 (local time)

Forecast update in  hr  min

Today's Grandma's sea temperature is
27.0°C
0.1° 

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


How big are the waves at Grandma's today (03 Oct):

  • Morning surf: Morning surf (03 Oct, local time) - 2ft (0.6m), 12s period with S swell.
  • Afternoon surf: Afternoon surf (03 Oct, local time) - 1.5ft (0.5m), 12s period with S swell.
  • Evening surf: Evening surf (03 Oct, local time) - 1.5ft (0.4m), 10s period with SSW swell.

The current surf forecast for Grandma's at 7AM is: 0.6m 12s primary swell from a South-southwest direction and 0.4m 8s secondary swell from a West direction (forecast issued at 01:00am October 03). An open ocean swell of 0.8m 8s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (HST) & DateWave HeightWave Period
Morning (03 Oct)2ft (0.6m)12s
Afternoon (03 Oct)1.5ft (0.5m)12s
Evening (03 Oct)1.5ft (0.4m)10s

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


Short Range Forecast

Mostly dry. Warm (max 28°C on Sun afternoon, min 24°C on Sat night). Wind will be generally light.

Saturday
3
Sunday
4
Monday
5
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
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SSW
12
0.6
SSW
12
0.6
S
12
0.6
S
12
0.6
S
12
0.5
S
12
0.4
SSW
10
0.5
S
11
0.5
S
12
0.5
S
12
0.4
SSW
20
0.4
SSW
20
0.4
SSW
19
0.5
SSW
19
0.6
SSW
19
0.6
SSW
18
0.6
SSW
18
0.6
SSW
18
0.7
SSW
17
0.7
SSW
17
0.7
SSW
17
0.7
SSW
16
0.7
SSW
16
0.7
SSW
16
Wave Graph
Metric surfscale
Energy kJ
117
117
108
106
103
70
33
66
69
76
129
128
124
205
277
260
249
240
315
311
300
280
273
266
Wind (km/h)
10
NNE
10
NNE
10
NNE
5
N
5
NNE
10
NNE
15
NNE
15
NNE
20
NNE
15
NE
20
NE
15
NNE
15
NNE
15
NNE
15
NE
20
NE
15
NE
15
NE
15
NE
10
NNE
10
NNE
15
NE
15
NNE
10
NNE
Wind State
off
off
off
cross-off
glassy
off
off
off
off
off
off
cross-off
off
off
off
off
off
off
off
off
off
off
off
off
High Tide
10:16AM0.76m
10:59PM0.30m
11:20AM0.76m
00:07AM0.36m
12:15PM0.75m
Low Tide
2:12AM0.11m
5:54PM0.15m
3:33AM0.14m
6:39PM0.12m
4:55AM0.14m
7:14PM0.09m
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
6:16
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—
—
—
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6:18
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—
—
—
—
—
—
6:18
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
6:12
—
—
—
—
—
—
—
6:10
—
—
—
—
—
—
—
6:09
—
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 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
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—
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Temp °C
25
24
25
27
27
26
25
25
24
24
25
27
28
27
25
25
24
24
25
27
28
27
25
24
Feels °C
27
26
26
29
30
28
26
25
24
24
24
26
28
27
25
25
24
24
25
28
29
27
26
25
  • 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
How to use the Wavefinder 

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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