Grandma's Surf Break

Lat Long: 20.79° N 156.56° W

Issued: 7 pm 30 Jun 2026 (local time)

Forecast update in  hr  min

Today's Grandma's sea temperature is
26.2° C

Normal for this time of year

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 (01 Jul):

  • Afternoon surf: Afternoon surf (01 Jul, local time) - 1.5ft (0.5m), 13s period with SSW swell.
  • Evening surf: Evening surf (01 Jul, local time) - 1.5ft (0.5m), 13s period with S swell.

The current surf forecast for Grandma's at 12AM is: 0.5m 13s primary swell from a South direction and 0.4m 15s secondary swell from a Southwest direction (forecast issued at 07:00pm June 30). An open ocean swell of 1.5m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (HST) & DateWave HeightWave Period
Morning (01 Jul)--
Afternoon (01 Jul)1.5ft (0.5m)13s
Evening (01 Jul)1.5ft (0.5m)13s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 28°C on Wed afternoon, min 23°C on Thu night). Wind will be generally light.

Tue
30
Wednesday
1
Thursday
2
Fri
3
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
1
1
1
1
1
1
1
1
1
1
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)
0.5
SSW
13
0.5
S
13
0.5
S
13
0.5
S
13
0.5
S
13
0.5
SSW
13
0.5
SSW
14
0.5
SSW
14
0.4
SSW
15
0.5
SSW
14
0.5
SSW
14
0.5
SSW
14
0.5
SSW
14
0.5
SSW
14
0.5
SSW
14
0.3
SSW
19
0.5
SSW
14
0.4
SSW
18
0.4
SSW
18
0.4
SSW
18
0.4
SSW
18
0.4
SSW
17
0.5
SSW
17
0.6
SSW
17
Wave Graph
Metric surfscale
Energy kJ
102
90
86
85
86
102
113
118
84
116
110
104
105
111
115
79
104
127
126
126
106
119
166
224
Wind (km/h)
15
N
10
NNE
10
NNE
10
NNE
10
NNE
10
NNE
5
NNE
10
ENE
20
ENE
20
NE
15
NNE
20
NNE
20
NNE
20
NNE
15
NNE
10
NE
15
NNE
20
NNE
15
NNE
10
NNE
15
NE
15
NNE
10
N
5
ENE
Wind State
cross-off
cross-off
off
off
off
off
glassy
cross-off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
cross-off
glassy
High Tide
4:55PM0.78m
5:02AM0.26m
5:29PM0.77m
5:48AM0.27m
6:03PM0.73m
6:39AM0.29m
Low Tide
11:58PM0.08m
9:59AM0.01m
00:30AM0.07m
10:41AM0.04m
1:02AM0.06m
11:26AM0.08m
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
clear
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>
5:48
5:48
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:10
7:10
7:10
7:10
 mm
Temp °C
27
26
26
25
25
26
27
28
27
25
25
24
24
25
27
27
27
25
24
24
23
24
27
27
Feels °C
28
29
28
27
27
29
30
30
27
25
26
24
24
24
28
28
27
25
25
25
23
24
28
29
Swell 1
Height (m)
Direction
Period (s)
0.5
SSW
13
0.5
S
13
0.5
S
13
0.5
S
13
0.5
S
13
0.5
SSW
13
0.5
SSW
14
0.5
SSW
14
0.4
SSW
15
0.5
SSW
14
0.5
SSW
14
0.5
SSW
14
0.5
SSW
14
0.5
SSW
14
0.5
SSW
14
0.4
SSW
14
0.5
SSW
14
0.4
SSW
13
0.4
SSW
18
0.4
SSW
13
0.4
SSW
13
0.4
SSW
17
0.5
SSW
17
0.6
SSW
17
Energy kJ
102
90
86
85
86
102
113
118
84
116
110
104
105
111
115
79
104
68
126
68
70
119
166
224
Swell 2
Height (m)
Direction
Period (s)
0.2
SSW
15
0.4
NNE
5
0.4
SW
15
0.4
SW
15
0.4
SW
15
0.3
SE
6
0.3
SE
6
0.3
NNE
8
0.3
SSW
13
0.3
SE
6
0.3
NNE
7
0.3
NNE
7
0.3
SSW
20
0.3
SSW
20
0.4
NNE
6
0.3
SSW
19
0.3
SSW
18
0.4
SSW
18
0.4
SSW
13
0.4
SSW
18
0.4
SSW
18
0.4
SSW
13
0.4
SSW
13
0.3
NNE
7
Energy kJ
21
9
56
56
55
5
5
12
33
5
11
10
75
75
13
73
65
127
68
126
106
68
69
11
Swell 3
Height (m)
Direction
Period (s)
0.2
S
18
0.4
SW
15
0.3
NNE
5
0.3
NNE
8
0.3
NNE
8
0.3
NNE
8
0.3
NNE
8
0.3
SE
5
0.3
NNE
8
0.2
SSW
21
0.3
SE
5
0.2
SSW
20
0.2
ESE
5
0.1
SE
5
0.3
SSW
20
0.3
N
6
0.3
SE
5
0.2
SSE
11
0.2
S
11
0.3
SE
5
0.3
NNE
6
0.3
NNE
7
0.3
NNE
8
0.3
SSW
12
Energy kJ
25
56
6
13
13
13
12
4
11
45
4
39
2
1
75
6
3
11
9
4
8
9
11
28
Wind waves
Height (m)
Direction
Period (s)
0.3
NNE
4
0.8
E
5
1.4
E
5
1.1
E
6
1.2
E
6
1.5
E
6
1.5
E
6
1.7
E
6
1.5
E
8
0.3
NNE
8
0.3
NNE
3
1.4
E
8
0.3
NNE
7
0.4
NNE
3
0.9
E
5
1.3
E
8
0.4
NNE
6
0.5
N
3
0.4
NNE
8
0.3
NNE
6
1
E
5
1
E
5
0.9
E
5
0.9
E
5
Energy kJ
4
27
102
72
89
149
159
205
291
11
1
253
9
3
42
212
12
5
19
8
52
52
40
37
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
2
2
Distance (km)
4
4
4
4
4
4
4
12
13
12
12
12
12
12
4
4
12
12
12
4
4
4
4
12
Best forecast wave conditions in Maui
Rating
(10 max)
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
2
2
Best forecast wave conditions in United States
Rating
(10 max)
2
2
3
3
3
1
2
1
1
2
3
3
3
2
1
2
3
4
1
2
2
1
2
2
Header Global
Rating
(10 max)
5
5
5
5
5
4
5
5
8
5
7
7
6
5
6
7
9
9
5
5
6
6
5
5
  • 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
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