Grandma's Surf Break

Lat Long: 20.79° N 156.56° W

Grandma's 48 hour detailed Surf Forecast

Issued: 1 am 22 Oct 2026 (local time)

Forecast update in  hr  min

Today's Grandma's sea temperature is
27.0°C
0.4° 

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 (22 Oct):

  • Morning surf: Morning surf (22 Oct, local time) - 1.5ft (0.4m), 14s period with SW swell.
  • Afternoon surf: Afternoon surf (22 Oct, local time) - 1.5ft (0.4m), 14s period with SW swell.
  • Evening surf: Evening surf (22 Oct, local time) - 1.5ft (0.4m), 13s period with SW swell.

The current surf forecast for Grandma's at 8AM is: 0.4m 14s primary swell from a Southwest direction (forecast issued at 01:00am October 22). An open ocean swell of 0.2m 6s is not directed at the surf break, a second open ocean swell of 0.6m 5s is not directed at the surf break. The wind direction is predicted to be glassy.

Time (HST) & DateWave HeightWave Period
Morning (22 Oct)1.5ft (0.4m)14s
Afternoon (22 Oct)1.5ft (0.4m)14s
Evening (22 Oct)1.5ft (0.4m)13s

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


Short Range Forecast

Mostly dry. Warm (max 27°C on Fri afternoon, min 23°C on Sat night). Wind will be generally light.

Thursday
22
Friday
23
Saturday
24
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
0
1
1
0
1
1
1
1
1
1
1
0
0
0
1
1
1
1
0
1
0
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)
0.4
SW
15
0.4
SW
14
0.4
SW
14
0.4
SW
14
0.4
SW
14
0.4
SW
14
0.4
SW
14
0.4
SW
13
0.4
SW
13
0.4
SW
13
0.4
SW
13
0.4
SW
13
0.4
SW
13
0.4
SSW
15
0.5
SSW
16
0.6
SSW
16
0.4
SSW
16
0.4
SSW
17
0.4
SSW
17
0.6
SSW
14
0.7
SSW
14
0.7
SSW
14
0.6
SSW
15
0.5
SSW
16
Wave Graph
Metric surfscale
Energy kJ
54
54
53
52
49
47
46
45
45
44
44
44
45
77
137
196
90
95
101
143
204
215
184
144
Wind (km/h)
5
NE
5
NE
5
E
5
SW
0
SSW
5
ENE
5
NE
5
N
0
NNW
0
NW
5
NE
5
N
5
NNE
15
NNE
15
NNE
15
N
15
NNE
15
NNE
15
NNE
15
N
10
NNE
15
NNE
20
NNE
15
NNE
Wind State
off
off
glassy
on
glassy
glassy
glassy
glassy
glassy
glassy
off
cross-off
glassy
off
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
off
cross-off
High Tide
1:37AM0.53m
1:25PM0.60m
2:13AM0.61m
2:02PM0.55m
2:51AM0.69m
2:40PM0.50m
Low Tide
7:04AM0.16m
7:34PM0.05m
7:59AM0.15m
8:00PM0.02m
8:53AM0.13m
8:28PM-0.00m
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
6:24
—
—
—
—
—
—
—
6:24
—
—
—
—
—
—
—
6:24
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
5:57
—
—
—
—
—
—
—
5:55
—
—
—
—
—
—
—
5:54
—
—
 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
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Temp °C
24
24
25
26
26
26
26
25
24
24
24
26
27
26
24
24
24
24
24
26
27
25
24
24
Feels °C
26
26
28
28
29
29
29
28
27
27
26
28
30
27
25
25
25
25
24
26
28
25
23
24
  • 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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