Grandma's Surf Break

Lat Long: 20.79° N 156.56° W

Grandma's 48 hour detailed Surf Forecast

Issued: 7 am 05 Aug 2026 (local time)

Forecast update in  hr  min

Today's Grandma's sea temperature is
26.7° 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 (05 Aug):

  • Morning surf: Morning surf (05 Aug, local time) - 1.5ft (0.4m), 15s period with SW swell.
  • Afternoon surf: Afternoon surf (05 Aug, local time) - 1.5ft (0.4m), 15s period with SW swell.
  • Evening surf: Evening surf (05 Aug, local time) - 1.5ft (0.4m), 15s period with SW swell.

The current surf forecast for Grandma's at 10AM is: 0.4m 11s primary swell from a South-southwest direction and 0.3m 13s secondary swell from a South direction (forecast issued at 07:00am August 05). An open ocean swell of 0.6m 4s is not directed at the surf break. The wind direction is predicted to be glassy.

Time (HST) & DateWave HeightWave Period
Morning (05 Aug)1.5ft (0.4m)15s
Afternoon (05 Aug)1.5ft (0.4m)15s
Evening (05 Aug)1.5ft (0.4m)15s

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


Short Range Forecast

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

Wednesday
5
Thursday
6
Friday
7
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
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
0
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)
0.4
SW
15
0.4
SW
15
0.3
SW
15
0.4
SW
15
0.4
SW
15
0.4
SW
15
0.4
SW
15
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
14
0.4
SSW
14
0.4
SSW
14
0.4
SSW
14
0.4
SW
14
0.3
SW
21
0.4
SW
20
0.4
SW
19
0.4
SW
19
Wave Graph
Metric surfscale
Energy kJ
57
57
40
60
60
59
59
60
53
54
51
53
53
52
53
81
80
77
49
69
99
96
96
Wind (km/h)
10
NE
10
NNE
5
NNW
5
NE
15
N
15
NNE
10
NNE
5
NNE
5
NE
5
NW
5
WSW
5
ENE
15
NE
15
NNE
15
NNE
10
NNE
10
NNE
15
NE
5
NNW
5
W
5
N
10
NNE
10
NNE
Wind State
off
off
glassy
off
cross-off
cross-off
cross-off
off
off
glassy
glassy
glassy
off
off
cross-off
off
off
off
cross-off
cross-on
glassy
off
cross-off
High Tide
10:07AM0.62m
8:49PM0.34m
11:13AM0.69m
10:23PM0.29m
12:14PM0.76m
Low Tide
2:24AM0.02m
4:22PM0.27m
3:14AM0.02m
6:20PM0.24m
4:12AM0.01m
7:41PM0.19m
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:01
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:01
7:00
7:00
 mm
Temp °C
25
26
27
28
27
26
25
25
25
25
27
27
27
25
25
24
24
25
27
28
27
26
25
Feels °C
28
29
30
31
28
27
27
28
28
28
30
30
28
26
26
25
25
26
30
31
31
29
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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