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Grandma's Surf Forecast
/ HAW – Maui (46 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Grandma's surfForecast / HAW – Maui / USA
48hr Weather and Surf, issued 7 pm Sunday 24 May 2026 HSTForecast 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
25.4° C
(Which is normal for this time of year)How big are the waves at Grandma's today?
The current surf forecast for Grandma's at 4AM is: 0.5m 14s primary swell from a South direction (forecast issued at 07:00pm May 24). An open ocean swell of 0.4m 8s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 May) | 1.5ft (0.5m) | 14s |
| Afternoon (25 May) | 1.5ft (0.5m) | 13s |
| Evening (25 May) | 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 ForecastMostly dry. Warm (max 26°C on Mon afternoon, min 21°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Sun 24 | Monday 25 | Tuesday 26 | Wed 27 | |||||||||||||||||||||
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 | 5 AM | 8 AM | 11 AM | 2 PM | |
Swell Height Map |  |    |    |    | ||||||||||||||||||||
S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 16 | S 12 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | |
94 | 93 | 96 | 97 | 63 | 97 | 89 | 85 | 84 | 84 | 84 | 84 | 54 | 53 | 50 | 121 | 46 | 112 | 104 | 103 | 102 | 100 | 97 | 91 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | cross-off | off | |
High Tide | 11:17PM0.48m | 12:46PM0.52m | 00:06AM0.42m | 1:30PM0.59m | 00:53AM0.37m | |||||||||||||||||||
Low Tide | 5:07PM0.20m | 5:45AM-0.02m | 6:32PM0.20m | 6:16AM-0.03m | 7:45PM0.18m | 6:45AM-0.04m | ||||||||||||||||||
 |  |  | | |  | | | | | | | | | |  | | | | | | | | | |
 | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — |
 | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | 7:00 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 25 | 24 | 23 | 22 | 22 | 23 | 25 | 26 | 25 | 24 | 23 | 23 | 23 | 24 | 26 | 25 | 26 | 23 | 23 | 22 | 21 | 23 | 25 | 26 |
23 | 23 | 22 | 21 | 21 | 22 | 25 | 26 | 24 | 23 | 24 | 23 | 23 | 24 | 27 | 24 | 25 | 21 | 21 | 20 | 20 | 23 | 25 | 26 | |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 16 | SE 6 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 |
 kJ | 94 | 93 | 96 | 97 | 63 | 97 | 89 | 85 | 84 | 84 | 84 | 84 | 54 | 53 | 50 | 121 | 9 | 112 | 104 | 103 | 102 | 100 | 97 | 91 |
Swell 2 Height (m) Direction Period (s) | NNE 9 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | SE 6 | S 12 | NNE 8 | SE 5 | NW 16 | NW 16 | NW 15 | NW 15 | NW 14 |
| kJ | 25 | 24 | 22 | 22 | 23 | 23 | 22 | 13 | 14 | 14 | 12 | 11 | 11 | 11 | 11 | 8 | 46 | 12 | 7 | 93 | 91 | 79 | 77 | 74 |
Swell 3 Height (m) Direction Period (s) | NW 12 | NW 12 | NW 12 | SE 6 | SE 6 | NW 11 | SE 5 | SE 6 | NNW 11 | SE 5 | SE 5 | SE 6 | SE 6 | SE 6 | SE 6 | NNE 7 | S 16 | SE 6 | NW 18 | SE 6 | SE 6 | SE 6 | NNE 7 | NNE 6 |
| kJ | 37 | 37 | 36 | 9 | 5 | 19 | 7 | 5 | 12 | 5 | 7 | 9 | 5 | 5 | 5 | 10 | 43 | 5 | 49 | 9 | 9 | 5 | 5 | 8 |
Wind waves Height (m) Direction Period (s) | E 6 | SE 6 | SE 5 | E 6 | — | SE 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 8 | E 7 |
| kJ | 89 | 8 | 7 | 154 | — | 8 | 121 | 89 | 146 | 92 | 117 | 105 | 105 | 115 | 134 | 160 | 212 | 128 | 129 | 154 | 129 | 104 | 160 | 183 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 13 | 12 | 12 | 12 | 12 | 12 | 4 | 4 | 12 | 12 | 4 | 4 | 12 | 12 | 4 | 183 | 13 | 12 | 12 | 12 | 12 | 4 | 4 | 4 |
Best forecast wave conditions in Maui | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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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