Grandma's Surf Break

Lat Long: 20.79° N 156.56° W

Grandma's 48 hour detailed Surf Forecast

Issued: 7 pm 08 Jul 2026 (local time)

Forecast update in  hr  min

Today's Grandma's sea temperature is
26.3° 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 (09 Jul):

  • Afternoon surf: Afternoon surf (09 Jul, local time) - 2ft (0.6m), 14s period with SSW swell.
  • Evening surf: Evening surf (09 Jul, local time) - 2ft (0.6m), 13s period with S swell.

The current surf forecast for Grandma's at 12AM is: 0.6m 13s primary swell from a South direction (forecast issued at 07:00pm July 08). An open ocean swell of 0.4m 6s is not directed at the surf break, a second open ocean swell of 1.4m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (HST) & DateWave HeightWave Period
Morning (09 Jul)--
Afternoon (09 Jul)2ft (0.6m)14s
Evening (09 Jul)2ft (0.6m)13s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Fri afternoon. Warm (max 28°C on Thu afternoon, min 24°C on Wed night). Wind will be generally light.

Wed
8
Thursday
9
Friday
10
Sat
11
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
2 AM
5 AM
8 AM
11 AM
2 PM
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
0
0
0
1
1
1
1
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
14
0.6
S
13
0.6
S
13
0.6
S
13
0.6
S
13
0.6
S
13
0.6
S
12
0.5
S
12
0.5
S
12
0.5
S
12
0.5
S
12
0.5
S
12
0.5
S
12
0.5
S
12
0.5
S
12
0.5
S
12
0.4
SSW
12
0.4
SSW
12
0.4
SSW
12
0.4
SW
19
0.4
SW
19
0.4
SW
19
0.5
SW
18
0.5
SW
18
Wave Graph
Metric surfscale
Energy kJ
143
130
128
126
123
117
113
78
78
78
77
75
72
71
71
72
48
48
46
96
131
129
162
155
Wind (km/h)
15
NNE
15
NNE
10
NNE
5
N
10
NNE
10
NNE
5
NNW
10
NE
20
NE
20
NNE
15
NNE
15
NNE
15
NNE
20
NNE
20
NNE
15
NNE
20
NNE
20
NNE
15
NNE
15
NNE
20
NE
25
NE
20
NE
20
NNE
Wind State
off
off
off
cross-off
cross-off
off
glassy
off
off
off
cross-off
off
off
off
off
off
off
off
off
cross-off
off
off
off
off
High Tide
10:35PM0.33m
12:36PM0.71m
11:51PM0.28m
1:28PM0.79m
1:02AM0.26m
Low Tide
5:58PM0.24m
4:47AM-0.04m
7:30PM0.19m
5:37AM-0.05m
8:38PM0.14m
6:28AM-0.07m
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
5:50
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:10
7:10
7:10
7:10
 mm
1
1
Temp °C
27
25
25
25
24
26
27
28
27
25
25
25
25
25
26
27
26
25
25
24
24
25
27
27
Feels °C
28
26
27
28
26
28
30
30
28
26
26
27
27
26
26
28
27
26
26
25
24
24
26
27
  • 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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