Grandma's Surf Break

Lat Long: 20.79° N 156.56° W

Grandma's 48 hour detailed Surf Forecast

Issued: 1 am 27 Oct 2026 (local time)

Forecast update in  hr  min

Today's Grandma's sea temperature is
26.9°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 (27 Oct):

  • Morning surf: Morning surf (27 Oct, local time) - 2.5ft (0.8m), 14s period with SSW swell.
  • Afternoon surf: Afternoon surf (27 Oct, local time) - 2ft (0.6m), 16s period with S swell.
  • Evening surf: Evening surf (27 Oct, local time) - 2ft (0.6m), 16s period with S swell.

The current surf forecast for Grandma's at 6AM is: 0.7m 14s primary swell from a South-southwest direction and 0.6m 15s secondary swell from a Northwest direction (forecast issued at 01:00am October 27). The wind direction is predicted to be offshore and the swell rating is 2.

Time (HST) & DateWave HeightWave Period
Morning (27 Oct)2.5ft (0.8m)14s
Afternoon (27 Oct)2ft (0.6m)16s
Evening (27 Oct)2ft (0.6m)16s

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


Short Range Forecast

Heavy rain (total 63mm), heaviest during Tue night. Warm (max 27°C on Tue morning, min 20°C on Tue night). Winds increasing (calm on Tue afternoon, fresh winds from the NNE by Tue night).

Tuesday
27
Wednesday
28
Thursday
29
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)
2
2
2
2
2
2
2
2
1
1
2
2
2
2
2
2
1
2
2
1
1
2
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)
0.8
SSW
14
0.7
SSW
14
0.8
SSW
14
0.6
S
16
0.6
S
16
0.6
S
16
0.6
S
16
0.9
SSW
16
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
0.9
S
15
1
S
14
0.8
SSW
14
0.8
S
14
0.7
S
13
0.6
S
18
0.6
S
17
0.8
S
13
1
S
16
1.1
S
16
1
S
16
1
S
16
1
S
15
Wave Graph
Metric surfscale
Energy kJ
254
189
243
193
190
188
186
416
375
360
355
343
423
269
239
176
222
215
229
501
605
516
509
446
Wind (km/h)
10
NNE
10
NE
5
NNE
5
W
5
N
5
NNE
10
NE
5
ESE
5
S
35
NNE
20
NNE
20
NE
15
NNE
20
NNE
20
NNE
25
NNE
25
NE
20
NNE
20
NNE
15
NNE
20
NNE
20
NNE
20
NNE
20
NNE
Wind State
off
off
off
glassy
glassy
cross-off
off
glassy
cross-on
off
off
off
off
off
off
off
off
off
off
cross-off
cross-off
off
off
off
High Tide
4:53AM0.83m
4:39PM0.34m
5:41AM0.84m
5:29PM0.30m
6:34AM0.83m
6:35PM0.26m
Low Tide
11:36AM0.13m
10:11PM-0.02m
12:38PM0.13m
10:54PM0.00m
1:48PM0.14m
part cloud
part cloud
part cloud
part cloud
part cloud
light rain
cloud
light rain
heavy rain
heavy rain
heavy rain
light rain
light rain
light rain
rain showers
rain showers
cloud
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>
—
6:26
—
—
—
—
—
—
—
6:26
—
—
—
—
—
—
—
6:26
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
5:52
—
—
—
—
—
—
—
5:52
—
—
—
—
—
—
—
5:52
—
—
 mm
—
—
—
—
—
1
—
1
17
22
16
1
2
1
1
1
—
—
—
—
—
—
—
—
Temp °C
24
25
25
27
26
26
25
25
23
20
22
23
23
24
24
24
24
24
24
26
26
25
24
24
Feels °C
26
27
27
30
29
30
28
30
27
16
22
24
24
25
25
24
24
25
25
28
27
26
25
25
  • 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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