Surf Forecast Surf Report
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Grandma's surf break

Grandma's surfForecast / HAW – Maui / USA

information circle12 Day Weather and Surf, issued 1 pm Saturday 23 Nov 2024 HST
Forecast update in hr  min  s Forecast update imminent
Grandma's surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Grandma's sea temperature is
26.2° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Grandma's this week:

The surf forecast for Grandma's over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Nov 24) at 5AM. The primary swell is predicted to be 0.4m and 14s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Grandma's in the next 12 days are 1.4m 18s and forecast to arrive on Friday (Nov 29) at 8PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Friday (Nov 29) at 5AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sun 24th Nov)1.5ft (0.4m) 14s
Best Surf 5PM (Fri 29th Nov)3.5ft (1.1m) 19s
Most Powerful 8PM (Fri 29th Nov)4.5ft (1.4m) 18s

Table - best surf conditions forecast for Grandma's over the next 12 days.

Updates in  hr  min  s Forecast update imminent
Sat
23
Sunday
24
Monday
25
Tuesday
26
Wednesday
27
Thursday
28
Friday
29
Saturday
30
Sunday
01
Monday
02
Tuesday
03
Wednesday
04
Thu
05
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.3
S
0.3
NW
0.6
NW
0.6
NW
0.6
NW
0.6
NW
0.6
NW
0.4
NW
0.4
NW
0.4
NW
0.6
NW
0.5
NW
0.5
NW
0.5
NW
0.5
NW
0.5
NW
0.4
NW
0.6
NW
1.1
NW
1.4
NW
1.2
NW
1.1
NW
0.9
NW
0.8
NW
0.8
NW
0.5
S
0.6
SSW
0.6
SSW
0.6
SSW
0.6
SSW
0.6
SSW
0.6
NW
0.6
NW
0.4
SSW
0.4
SW
0.3
SSW
Period(s) (?)121514131212121615141312111112111115191615141313121918171616151312141919
Wave
Graph
(?)Metric surfscale
Energy (?)24391141361261161129175651067164636860411367911014623459299205181186243237201193186134110619670
Wind
(km/h)
5
N
5
NNE
0
N
5
NNE
10
NE
5
N
5
NE
10
NE
5
NW
15
NNE
10
NE
10
NNE
15
NNE
10
NNE
10
N
15
NNE
10
NNE
10
NNW
15
NNE
5
NNE
0
NNE
15
NNE
5
NNE
5
S
5
SSE
5
SSW
5
SW
10
N
5
NW
5
SSW
0
NE
5
NNW
0
WSW
5
NE
5
NNE
5
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
glassglassoffcross-
off
glassoffglassoffoffcross-
off
cross-
off
offcross-
off
offcross-
off
cross-
off
cross-
off
glassglassoffglasscross-
on
glassononcross-
off
glassonglassglassglassglassoffcross-
on
High Tide
/ height (m)
11:48PM
0.42
11:07AM
0.55
12:35AM
0.50
11:55AM
0.50
1:16AM
0.58
12:40PM
0.45
1:55AM
0.64
1:25PM
0.41
2:32AM
0.70
2:07PM
0.36
3:08AM
0.74
2:48PM
0.32
3:44AM
0.77
3:28PM
0.29
4:20AM
0.79
4:08PM
0.26
4:58AM
0.80
4:51PM
0.24
5:38AM
0.80
5:41PM
0.23
6:21AM
0.78
6:43PM
0.23
7:06AM
0.75
Low Tide
/ height (m)
5:15PM
0.08
4:33AM
0.24
5:44PM
0.05
5:55AM
0.24
6:13PM
0.03
7:06AM
0.22
6:42PM
0.02
8:07AM
0.20
7:11PM
0.00
9:00AM
0.17
7:42PM
-0.01
9:49AM
0.15
8:13PM
-0.01
10:35AM
0.13
8:46PM
-0.01
11:20AM
0.12
9:21PM
-0.01
12:06PM
0.11
9:58PM
0.01
12:53PM
0.10
10:39PM
0.03
1:41PM
0.09
11:27PM
0.06
Sat
23
Sunday
24
Monday
25
Tuesday
26
Wednesday
27
Thursday
28
Friday
29
Saturday
30
Sunday
01
Monday
02
Tuesday
03
Wednesday
04
Thu
05
Sunrise--6:41--6:41--6:43--6:43--6:43--6:45--6:46--6:46--6:47--6:48--6:48--6:48
Sunset5:43--5:43--5:43--5:43--5:43--5:44--5:44--5:44--5:44--5:44--5:44--5:44--
part cloudclearclearpart cloudclearclearclearclearclearclearclearclearclearclearclearclearclearclearpart cloudpart cloudpart cloudpart cloudpart cloudpart cloudcloudpart cloudclearpart cloudclearclearclearclearclearpart cloudclearclear
Rain (mm)
------------------------------------
Temp. °C242425242225252325252325252325252225252224252224242325252325252425262426
Feels °C (?)262728272326272427272325252426262125262226272225252627262527282728292628

Short Range Forecast: Mostly dry. Warm (max 25°C on Sun morning, min 22°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 25°C on Tue afternoon, min 21°C on Thu night). Wind will be generally light.

Days 6-9 Weather Summary Mostly dry. Warm (max 25°C on Fri afternoon, min 22°C on Fri night). Wind will be generally light.

Long Range Forecast: Mostly dry. Warm (max 26°C on Wed afternoon, min 23°C on Mon night). Wind will be generally light.

  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.


Information about the Grandma's Surf forecast

The above surf forecast table for Grandma's provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Grandma's can be found by selecting the local surf guide option on the grey menu. Our Grandma's surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Grandma's) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Grandma's may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a vacation in Maui? If you are looking for accommodation near Grandma's, camping, hotels and condos and appartments in Maui, consider staying in Kihei which is 10 km (6 miles) away. Other places in and around Maui where you can find information about places to rent, and car hire include Wailuku which is 12 km (7 miles) away, Kahului, Lanai - Lanai and Kaunakakai - Molokai.

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