Grandma's Surf Break

Lat Long: 20.79° N 156.56° W

Grandma's 48 hour detailed Surf Forecast

Issued: 1 am 26 Oct 2026 (local time)

Forecast update in  hr  min

Today's Grandma's sea temperature is
26.9°C
0.3° 

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 (26 Oct):

  • Morning surf: Morning surf (26 Oct, local time) - 2.5ft (0.7m), 15s period with SSW swell.
  • Afternoon surf: Afternoon surf (26 Oct, local time) - 3ft (0.9m), 15s period with SSW swell.
  • Evening surf: Evening surf (26 Oct, local time) - 2.5ft (0.8m), 14s period with SSW swell.

The current surf forecast for Grandma's at 8AM is: 0.7m 15s primary swell from a South-southwest direction (forecast issued at 01:00am October 26). An open ocean swell of 0.6m 10s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.

Time (HST) & DateWave HeightWave Period
Morning (26 Oct)2.5ft (0.7m)15s
Afternoon (26 Oct)3ft (0.9m)15s
Evening (26 Oct)2.5ft (0.8m)14s

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


Short Range Forecast

Moderate rain (total 17mm), heaviest on Wed morning. Warm (max 26°C on Mon morning, min 21°C on Wed morning). Wind will be generally light.

Monday
26
Tuesday
27
Wednesday
28
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)
2
2
2
2
1
2
2
2
2
2
2
2
2
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)
0.7
SSW
16
0.7
SSW
16
0.7
SSW
15
0.7
SSW
15
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
0.7
SSW
14
0.7
SSW
14
0.7
SSW
14
0.8
SSW
14
0.6
S
16
0.6
S
16
0.6
S
16
0.6
S
16
0.9
SSW
16
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
0.9
SSW
14
0.8
S
14
0.8
S
14
0.8
S
13
Wave Graph
Metric surfscale
Energy kJ
266
253
231
225
360
360
355
213
198
189
243
193
190
188
186
416
375
360
355
355
346
257
239
229
Wind (km/h)
5
NE
10
NE
15
NE
5
WNW
5
WNW
5
N
10
NE
10
NNE
10
NE
10
NE
10
NE
5
NW
5
WSW
5
NNW
10
NNE
15
NNE
20
NNE
20
NNE
25
NNE
20
NNE
10
NNE
10
NNE
10
NE
10
NE
Wind State
off
off
off
glassy
cross-on
glassy
off
off
off
off
off
glassy
glassy
cross-off
off
off
off
off
off
off
off
cross-off
off
off
High Tide
4:09AM0.80m
3:56PM0.39m
4:53AM0.83m
4:39PM0.34m
5:41AM0.84m
5:29PM0.30m
Low Tide
10:39AM0.12m
9:33PM-0.02m
11:36AM0.13m
10:11PM-0.02m
12:38PM0.13m
10:54PM0.00m
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
light rain
light rain
cloud
light rain
light rain
mod rain
rain showers
part cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
6:24
—
—
—
—
—
—
—
6:26
—
—
—
—
—
—
—
6:26
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
5:53
—
—
—
—
—
—
—
5:52
—
—
—
—
—
—
—
5:52
—
—
 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
2
2
—
1
3
8
1
—
—
—
Temp °C
24
24
24
26
26
26
24
24
24
24
24
26
26
25
24
23
23
22
21
22
23
24
24
24
Feels °C
26
25
25
29
28
29
25
26
26
26
25
29
29
28
27
24
23
21
20
22
25
27
26
26
  • 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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