Grandma's Surf Break

Lat Long: 20.79° N 156.56° W

Issued: 7 am 04 Jul 2026 (local time)

Forecast update in  hr  min

Today's Grandma's sea temperature is
26.4° C

Slightly warmer than usual

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 (04 Jul):

  • Morning surf: Morning surf (04 Jul, local time) - 2.5ft (0.7m), 16s period with SSW swell.
  • Afternoon surf: Afternoon surf (04 Jul, local time) - 2ft (0.6m), 20s period with SSW swell.
  • Evening surf: Evening surf (04 Jul, local time) - 2.5ft (0.7m), 19s period with SSW swell.

The current surf forecast for Grandma's at 2PM is: 0.6m 20s primary swell from a South-southwest direction and 0.4m 15s secondary swell from a South-southwest direction (forecast issued at 07:00am July 04). An open ocean swell of 1.5m 5s 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 (04 Jul)2.5ft (0.7m)16s
Afternoon (04 Jul)2ft (0.6m)20s
Evening (04 Jul)2.5ft (0.7m)19s

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 Sat afternoon, min 23°C on Mon night). Wind will be generally light.

Saturday
4
Sunday
5
Monday
6
Tue
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
2 AM
Rating
(10 max)
2
2
2
2
2
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
SSW
21
0.7
SSW
16
0.7
SSW
16
0.6
SSW
20
0.6
SSW
20
0.7
SSW
20
0.7
SSW
19
0.7
SSW
19
0.7
SSW
18
0.7
SSW
18
0.7
SSW
18
0.7
SSW
18
0.9
SSW
17
0.9
SSW
16
0.9
SSW
16
0.9
SSW
16
0.8
SSW
16
0.8
SSW
16
0.9
SSW
16
0.9
SSW
16
0.8
SSW
15
0.8
SSW
15
0.8
SSW
15
0.8
SSW
15
Wave Graph
Metric surfscale
Energy kJ
260
258
253
311
298
395
387
367
333
329
326
322
433
390
376
371
346
341
362
348
300
292
288
284
Wind (km/h)
15
NNE
20
NE
15
NNE
10
NNE
15
NE
20
NNE
15
NNE
10
NNE
15
NNE
15
NE
15
NE
20
NE
20
NNE
20
NNE
15
NNE
15
NNE
15
NNE
20
NE
20
NE
20
NE
25
NNE
20
NE
20
NNE
15
NE
Wind State
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
High Tide
7:36AM0.32m
7:11PM0.63m
8:39AM0.37m
7:49PM0.56m
9:42AM0.45m
8:32PM0.48m
Low Tide
12:19PM0.13m
2:06AM0.03m
1:22PM0.19m
2:41AM0.02m
2:40PM0.23m
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:50
5:50
5:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:10
7:10
7:10
7:10
 mm
Temp °C
24
25
27
28
27
25
24
24
24
25
27
27
26
25
24
24
24
25
26
27
26
25
24
24
Feels °C
24
24
27
29
27
25
24
25
25
25
27
27
25
24
24
24
24
24
25
25
24
24
23
24
Swell 1
Height (m)
Direction
Period (s)
0.5
SSW
16
0.7
SSW
16
0.7
SSW
16
0.6
SSW
20
0.6
SSW
20
0.7
SSW
20
0.7
SSW
19
0.7
SSW
19
0.7
SSW
18
0.7
SSW
18
0.7
SSW
18
0.7
SSW
18
0.9
SSW
17
0.9
SSW
16
0.9
SSW
16
0.9
SSW
16
0.8
SSW
16
0.8
SSW
16
0.9
SSW
16
0.9
SSW
16
0.8
SSW
15
0.8
SSW
15
0.8
SSW
15
0.8
SSW
15
Energy kJ
144
223
217
311
298
395
387
367
333
329
326
322
433
390
376
371
346
341
362
348
300
292
288
284
Swell 2
Height (m)
Direction
Period (s)
0.5
SSW
21
0.5
SSW
21
0.5
SSW
21
0.4
SSW
15
0.4
SW
16
0.4
SE
6
0.5
SSW
15
0.5
SSW
15
0.4
SSW
14
0.5
S
14
0.5
S
14
0.4
SSW
13
0.3
NNE
7
0.3
NNE
7
0.3
N
6
0.4
SE
10
0.4
NE
7
0.4
NE
7
0.4
NNE
7
0.3
NNE
7
0.4
NNE
7
0.4
NNE
7
0.4
SE
6
0.3
NNE
7
Energy kJ
260
258
253
85
62
9
121
121
82
104
94
70
9
9
7
25
14
14
18
10
18
17
9
10
Swell 3
Height (m)
Direction
Period (s)
0.4
NE
8
0.4
NE
8
0.3
NNE
7
0.4
NE
7
0.4
NNE
6
0.4
SW
15
0.4
SE
6
0.4
SE
5
0.4
NE
8
0.4
NE
8
0.4
NE
8
0.4
NE
7
0.2
SSE
11
0.3
SE
11
0.2
SSW
13
0.3
N
11
0.3
SE
10
0.3
SE
10
0.2
ESE
6
0.3
SE
6
0.3
SE
6
0.1
S
10
0.3
NNE
7
0.1
S
10
Energy kJ
16
14
11
13
13
56
9
7
16
15
14
14
11
18
17
20
15
15
3
5
5
2
11
2
Wind waves
Height (m)
Direction
Period (s)
1.1
E
8
0.9
E
8
0.8
E
5
1.5
E
5
1.2
E
6
1.5
E
6
1.4
E
6
1.2
E
5
1
E
5
1
E
5
1
E
5
1.4
E
5
1.4
E
6
1.2
E
6
0.3
ESE
6
1.4
E
6
1.3
E
6
1.3
E
5
1.4
E
6
1.3
E
6
1.8
E
6
0.4
SE
6
1.6
E
6
0.4
ESE
6
Energy kJ
153
108
31
120
89
149
121
83
54
52
52
109
119
89
6
121
100
97
129
119
216
9
175
13
Nearest Offshore or Glassy
Rating
(10 max)
2
3
2
2
3
3
2
2
2
3
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Distance (km)
12
12
12
4
12
12
4
4
4
12
12
12
12
12
12
12
12
12
12
13
13
12
12
12
Best forecast wave conditions in Maui
Rating
(10 max)
2
3
2
2
3
3
2
2
2
3
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Best forecast wave conditions in United States
Rating
(10 max)
3
3
2
2
3
3
3
3
3
3
2
2
3
3
3
3
2
2
2
2
4
2
2
4
Header Global
Rating
(10 max)
5
4
5
5
9
9
9
8
7
6
5
5
5
5
5
5
5
8
8
8
7
7
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
How to use the Wavefinder 

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