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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 am Tuesday 28 Apr 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
25.2° C
(Which is slightly warmer than usual)How big are the waves at Grandma's today?
The current surf forecast for Grandma's at 3PM is: 0.4m 12s primary swell from a Southwest direction (forecast issued at 07:00am April 28). An open ocean swell of 0.2m 10s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Apr) | 1.5ft (0.4m) | 12s |
| Afternoon (28 Apr) | 1.5ft (0.4m) | 12s |
| Evening (28 Apr) | 1.5ft (0.4m) | 12s |
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 Tue afternoon, min 22°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 28 | Wednesday 29 | Thursday 30 | Fri 1 | |||||||||||||||||||||
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 | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | NW 13 | SW 12 | SW 12 | SW 12 | SSW 12 | SSW 11 | SSW 11 | S 18 | S 18 | SSW 13 | SSW 12 | S 16 | S 16 | SSW 16 | S 16 | SSW 16 | S 15 | |
42 | 41 | 39 | 37 | 37 | 37 | 36 | 27 | 22 | 22 | 22 | 13 | 12 | 12 | 25 | 25 | 16 | 15 | 46 | 46 | 86 | 46 | 51 | 39 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | off | glassy | cross-off | off | off | off | off | off | off | cross-off | off | off | off | off | off | off | off | off | off | off | off | off | off | |
High Tide | 2:32PM0.58m | 2:15AM0.43m | 3:08PM0.64m | 2:53AM0.38m | 3:44PM0.67m | |||||||||||||||||||
Low Tide | 7:41AM-0.03m | 8:32PM0.11m | 8:06AM-0.04m | 9:23PM0.10m | 8:32AM-0.04m | 10:09PM0.10m | ||||||||||||||||||
 |  | | | | | | | | | | |  | | | | | | | | | | | | |
 | 5:58 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | 5:56 |
 | — | — | — | — | 6:49 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:50 | — | — | 6:50 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 22 | 23 | 25 | 26 | 25 | 23 | 23 | 22 | 22 | 23 | 25 | 25 | 25 | 23 | 22 | 22 | 22 | 23 | 25 | 26 | 25 | 23 | 23 | 22 |
23 | 24 | 27 | 28 | 25 | 22 | 23 | 21 | 21 | 22 | 24 | 24 | 24 | 22 | 21 | 22 | 21 | 22 | 24 | 25 | 23 | 22 | 23 | 22 | |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | NW 13 | NW 13 | NW 12 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 12 | NNW 12 | NNW 12 | NNW 12 | NNW 11 | NW 11 | NNW 13 | NNW 13 |
 kJ | 42 | 41 | 39 | 37 | 37 | 37 | 36 | 22 | 43 | 42 | 39 | 51 | 49 | 46 | 44 | 41 | 39 | 57 | 56 | 54 | 51 | 33 | 66 | 67 |
Swell 2 Height (m) Direction Period (s) | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNE 5 | NNE 5 | NW 13 | NW 13 | SW 12 | SW 12 | SW 12 | SSW 12 | ESE 6 | SE 6 | SE 6 | SE 6 | SE 6 | ESE 5 | S 16 | S 16 | SSW 16 | S 16 | SE 6 | SE 6 |
| kJ | 10 | 10 | 10 | 10 | 5 | 6 | 28 | 27 | 22 | 22 | 22 | 13 | 3 | 5 | 9 | 9 | 5 | 3 | 46 | 46 | 86 | 46 | 9 | 10 |
Swell 3 Height (m) Direction Period (s) | NNE 6 | NNE 6 | NNE 8 | NNE 6 | NNW 10 | NW 14 | ESE 5 | ESE 5 | SE 5 | SE 5 | NNE 4 | ESE 5 | SSW 11 | SSW 11 | S 18 | S 18 | SSW 13 | SSW 12 | ESE 6 | SE 6 | NNE 5 | NNW 14 | SSW 16 | S 15 |
| kJ | 3 | 3 | 6 | 3 | 10 | 29 | 3 | 3 | 5 | 5 | 2 | 3 | 12 | 12 | 25 | 25 | 16 | 15 | 3 | 6 | 2 | 18 | 51 | 39 |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | E 7 | — | E 7 | E 5 | NNE 7 | E 5 | E 5 | NNE 6 | E 5 | NNE 5 | NNE 3 | NNE 4 | NE 3 | NNE 3 | NNE 5 | — | E 6 | E 6 | E 6 | SSE 4 | — | E 6 |
| kJ | 116 | 96 | 99 | — | 103 | 22 | 10 | 62 | 65 | 4 | 52 | 2 | 5 | 7 | 3 | 2 | 2 | — | 89 | 92 | 141 | 1 | — | 188 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 12 | 17 | 17 | 171 | 17 | 16 | 16 | 17 | 17 | 17 | 13 | 17 | 17 | 13 | 15 | 17 | 17 | 15 | 13 | 12 | 12 | 12 | 12 | 12 |
Best forecast wave conditions in Maui | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
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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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