Grandma's Surf Break

Lat Long: 20.79° N 156.56° W

Issued: 1 am 26 Jun 2026 (local time)

Forecast update in  hr  min

Today's Grandma's sea temperature is
26.6° 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 (26 Jun):

  • Morning surf: Morning surf (26 Jun, local time) - 1.5ft (0.4m), 18s period with SW swell.
  • Afternoon surf: Afternoon surf (26 Jun, local time) - 1.5ft (0.5m), 14s period with S swell.
  • Evening surf: Evening surf (26 Jun, local time) - 1.5ft (0.5m), 13s period with S swell.

The current surf forecast for Grandma's at 7AM is: 0.5m 14s primary swell from a South direction and 0.4m 18s secondary swell from a Southwest direction (forecast issued at 01:00am June 26). An open ocean swell of 1.3m 6s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (HST) & DateWave HeightWave Period
Morning (26 Jun)1.5ft (0.4m)18s
Afternoon (26 Jun)1.5ft (0.5m)14s
Evening (26 Jun)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 Fri afternoon, min 23°C on Sat night). Wind will be generally light.

Friday
26
Saturday
27
Sunday
28
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
1
1
1
1
1
1
1
1
1
2
1
1
1
1
2
1
1
1
1
2
2
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
S
14
0.6
S
14
0.4
SW
18
0.4
SW
18
0.5
S
14
0.5
S
14
0.5
S
13
0.5
S
13
0.3
SSW
21
0.4
SSW
13
0.4
SSW
13
0.3
SSW
20
0.5
SSW
20
0.4
SSW
20
0.4
SSW
19
0.5
SSW
18
0.5
SSW
18
0.6
SSW
18
0.5
SSW
18
0.5
SSW
18
0.5
SSW
17
0.6
SSW
16
0.8
SSW
16
0.8
SSW
16
Wave Graph
Metric surfscale
Energy kJ
153
153
106
104
101
93
90
89
90
57
57
75
216
149
125
188
178
246
178
178
164
203
295
295
Wind (km/h)
5
NE
5
NE
10
NNE
10
N
5
E
10
E
15
NE
10
NE
10
NNE
10
NNE
10
NE
5
NNE
10
E
15
NE
15
NE
15
NNE
10
NNE
10
NNE
10
NE
5
NNW
5
NE
10
NE
5
NE
10
N
Wind State
off
off
off
cross-off
glassy
cross-off
off
off
off
off
off
glassy
cross-off
off
off
off
off
off
off
glassy
glassy
off
off
cross-off
High Tide
1:10AM0.27m
2:27PM0.74m
2:02AM0.26m
3:06PM0.77m
2:50AM0.25m
3:43PM0.78m
Low Tide
6:38AM-0.03m
9:43PM0.15m
7:19AM-0.03m
10:20PM0.12m
8:00AM-0.03m
10:53PM0.10m
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:47
5:47
5:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:09
7:09
7:10
 mm
Temp °C
24
24
25
27
28
27
25
25
24
24
25
27
27
27
25
24
24
23
25
26
27
27
26
25
Feels °C
26
26
26
29
30
28
26
26
25
25
26
29
28
27
25
24
25
24
26
28
29
28
28
27
Swell 1
Height (m)
Direction
Period (s)
0.6
S
14
0.6
S
14
0.5
S
14
0.5
S
14
0.5
S
14
0.5
S
14
0.5
S
13
0.5
S
13
0.4
SSW
13
0.4
SSW
13
0.4
SSW
13
0.4
SSW
13
0.5
SSW
20
0.4
SSW
20
0.4
SE
6
0.5
SSW
18
0.5
SSW
18
0.6
SSW
18
0.5
SSW
18
0.5
SSW
18
0.5
SSW
17
0.6
SSW
16
0.8
SSW
16
0.8
SSW
16
Energy kJ
153
153
106
104
101
93
90
89
58
57
57
56
216
149
11
188
178
246
178
178
164
203
295
295
Swell 2
Height (m)
Direction
Period (s)
0.4
SE
6
0.4
SE
6
0.4
SW
18
0.4
SW
18
0.3
SE
6
0.3
SE
6
0.3
NNE
8
0.3
SE
5
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.3
SSW
20
0.4
SSW
13
0.4
SSW
12
0.4
SSW
19
0.4
SE
6
0.4
SE
5
0.4
S
12
0.4
S
12
0.4
SSW
11
0.3
SSW
11
0.4
SSW
11
0.3
ESE
9
0.4
SSE
11
Energy kJ
10
9
79
79
5
5
12
4
9
8
8
75
55
50
125
8
7
45
43
43
25
40
15
37
Swell 3
Height (m)
Direction
Period (s)
0.3
NNE
8
0.3
NNE
8
0.3
SE
5
0.3
NNE
8
0.3
NNE
8
0.3
NNE
8
0.3
SE
5
0.3
NNE
8
0.3
SSW
21
0.3
NNE
8
0.3
NNE
8
0.4
SE
6
0.4
SE
5
0.2
NNE
8
0.3
SSW
12
0.3
SSW
12
0.3
SSW
12
0.2
N
7
0.3
NE
7
0.4
NE
5
0.3
NNE
7
0.2
ENE
9
0.3
SSW
11
0.1
S
13
Energy kJ
12
12
4
11
12
13
5
12
90
11
11
8
7
6
28
28
28
4
7
7
9
7
23
3
Wind waves
Height (m)
Direction
Period (s)
1.6
E
6
1.4
E
6
1.2
E
6
1.2
E
6
1.7
E
6
1.7
E
6
1.3
E
6
1.5
E
6
1.6
E
6
1.4
E
6
1.5
E
6
1.5
E
6
1.5
E
6
0.4
SE
5
1.8
E
6
1.6
E
6
1.4
E
5
1.2
E
8
0.9
E
5
0.8
E
5
0.8
E
5
1.1
E
8
1.1
E
8
1.3
E
8
Energy kJ
199
153
106
92
219
211
126
139
175
125
149
160
144
10
216
158
113
191
40
31
27
152
148
203
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
2
1
1
1
1
2
1
1
2
2
2
2
2
2
2
1
1
1
1
2
2
Distance (km)
4
4
4
4
4
12
12
4
4
4
4
4
12
13
4
4
4
4
4
4
4
4
4
4
Best forecast wave conditions in Maui
Rating
(10 max)
1
1
1
2
1
1
1
1
2
1
1
2
2
2
2
2
2
2
1
1
1
1
2
2
Best forecast wave conditions in United States
Rating
(10 max)
3
3
2
2
2
3
2
3
2
2
2
2
3
4
2
3
4
3
2
1
1
2
4
4
Header Global
Rating
(10 max)
6
7
7
5
6
6
6
5
5
5
5
4
9
8
7
6
5
5
6
6
6
8
7
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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