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Grandma's ratings
Quality on a good day: 1.0
Consistency of Surf: 3.0
Difficulty Level: 1.0
Crowds: 2.0

Overall: 2.4

See all 18 ratings

Based on 2 votes. Vote


Surf Report Feed

Eyeball surf reportRecent Eyeball Surf Reports for HAW - Maui

  1. weather stationWind Update Cross-off wind 15 km from Grandma's has swung offshore (light winds from the NE at BUOY-KLIH1). 1.0m 5 s period wind swell from ENE
    Grandma's
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3 h 7 min ago

Moderate
18 km/h
NE
Offshore
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Grandma's Surf Forecast / HAW – Maui / USA

7 Day Weather and Surf, issued 7 pm Friday 17 Aug 2018 HST

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 27.6 °C (Statistics for 17 Aug 1981-2005 - mean: 26.6 max: 27.3 min: 25.8 °C)

FriSaturday 18Sunday 19Monday 20Tuesday 21Wednesday 22Thursday 23Friday 24Sat
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
1
Swell
Height Map See all maps
Wave Height (m) & direction (?)
0.4
S
0.4
S
0.4
S
0.4
S
0.3
S
0.3
S
0.3
S
0.3
S
0.2
S
0.2
S
0.2
SSW
0.2
SSW
0.2
SSW
0.4
SW
0.3
SW
0.3
SW
0.3
SW
0.4
SSE
0.4
SSE
0.4
SW
1.8
SSE
1.1
S
1
S
Period(s) (?)1212121111111110101014161315141313151114777
Surfscale.metric
Wave
Graph
(?)
Energy(?)4544424022212019881927175532282688504934612091
Wind
(km/h)
15
ENE
15
ENE
20
E
15
E
15
E
15
ENE
20
ENE
25
ENE
30
NE
30
NE
30
NE
30
NE
25
NE
30
NE
35
NE
30
ENE
35
ENE
40
ENE
50
ENE
40
E
25
ENE
15
ENE
10
E
Wind State(?)offcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offoffoffoffoffoffoffoffoffcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
9:08PM
0.42
10:45AM
0.61

10:16PM
0.37
11:44AM
0.65

11:26PM
0.35
12:36PM
0.69

12:28AM
0.35
1:22PM
0.72

1:21AM
0.37

2:04PM
0.74
2:07AM
0.39

2:42PM
0.76
2:49AM
0.41

3:18PM
0.76


Low Tide
/ height (m)
3:06AM
0.08

5:14PM
0.26
3:58AM
0.08

6:42PM
0.24
4:53AM
0.08

7:39PM
0.21

5:47AM
0.07

8:19PM
0.18
6:38AM
0.06

8:51PM
0.15
7:24AM
0.05

9:21PM
0.13
8:07AM
0.05

9:49PM
0.11

Note: the tide data above is for Kihei, Maui (Hawaii) which is 9 km away. Surf properties and timing are calculated for Grandma's.New forecast is published every 6 hours at www.surf-forecast.com. See detailed tide info and graph

Offshore winds at Grandma's blow from the NE.
 FriSaturday 18Sunday 19Monday 20Tuesday 21Wednesday 22Thursday 23Friday 24Sat
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
partially cloudy
partially cloudy
partially cloudy
partially cloudy
partially cloudy
partially cloudy
partially cloudy
partially cloudy
thunderstorm
heavy rain
light rain
Summary
clearclearclearclearclearclearclearclearclearclearclearclearsome cloudssome cloudssome cloudssome cloudssome cloudssome cloudssome cloudssome cloudsrisk thund- derheavy rainlight rain
Rain (mm)
--------------------12201
High °C
2830302830302829292729292727292728282727272727
Low °C
2728302828302727282627282627282727272727262727
Chill °C (?)
2830302830302829292729292727292728282727272727
Sunrise
-6:05--6:05--6:05--6:07--6:07--6:07--6:07--6:07
Sunset
--6:52--6:52--6:51--6:50--6:50--6:49--6:47--
Short Range Forecast: Mostly dry. Very warm air temperatures (max 30°C on Sat morning, min 26°C on Mon night). Mainly fresh winds.Long Range Forecast:Heavy rain (total 33mm), heaviest during Fri night. Warm air temperatures (max 29°C on Tue afternoon, min 26°C on Tue night). Winds decreasing (strong winds from the ENE on Thu night, light winds from the E by Sat morning).

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.



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 7 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.