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Grandma's Surf Forecast
/ HAW – Maui (46 breaks) / Hawaii (267 breaks) /
Grandma's surfForecast / HAW – Maui / USA
48hr Weather and Surf, issued 1 am Wednesday 30 Apr 2025 HST
How big are the waves at Grandma's today?
The current surf forecast for Grandma's at 2AM is: 0.4m 16s primary swell from a South-southwest direction and 0.3m 21s secondary swell from a South-southwest direction (forecast issued at 01:00am April 30). An open ocean swell of 1.1m 8s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Apr) | 1.5ft (0.5m) | 20s |
| Afternoon (30 Apr) | 1.5ft (0.5m) | 19s |
| Evening (30 Apr) | 2ft (0.6m) | 18s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Wednesday 30 | Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 | 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 | 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 | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Swell Height Map |    |    |    |    |    |    |    |    |    | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 16 | 16 | 20 | 20 | 20 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 18 | 13 | 13 | 13 | 13 | 13 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 14 | 15 | 14 | 14 | 16 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 12 | 6 | 5 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Energy (?) | 104 | 103 | 133 | 194 | 216 | 190 | 180 | 230 | 307 | 322 | 237 | 147 | 134 | 266 | 266 | 198 | 198 | 177 | 159 | 155 | 206 | 215 | 150 | 150 | 84 | 87 | 88 | 204 | 55 | 54 | 54 | 54 | 50 | 125 | 169 | 124 | 99 | 98 | 61 | 62 | 62 | 84 | 54 | 54 | 54 | 54 | 54 | 51 | 50 | 30 | 31 | 31 | 19 | 18 | 21 | 21 | 0 | 0 | 4 | 19 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | glass | glass | glass | cross- on | glass | glass | cross- off | glass | off | off | glass | cross | cross- off | off | off | off | off | off | glass | cross- off | cross- off | off | off | glass | glass | cross- off | glass | cross- on | cross- off | cross- off | cross- off | off | off | off | glass | glass | off | off | off | off | glass | off | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross- off | off | off | off | off | off | off | off | off |
High Tide / height (m) | 5:51AM 0.23 | 6:47PM 0.77 | 6:55AM 0.20 | 7:44PM 0.74 | 8:15AM 0.19 | 8:44PM 0.69 | 9:39AM 0.21 | 9:44PM 0.65 | 10:53AM 0.27 | 10:41PM 0.60 | 11:53AM 0.34 | 11:32PM 0.56 | 12:43PM 0.41 | 12:19AM 0.51 | ||||||||||||||||||||||||||||||||||||||||||||||
Low Tide / height (m) | 12:57AM 0.06 | 11:02AM -0.05 | 2:08AM 0.07 | 11:49AM -0.01 | 3:22AM 0.07 | 12:44PM 0.04 | 4:27AM 0.07 | 1:51PM 0.09 | 5:16AM 0.06 | 3:11PM 0.13 | 5:51AM 0.04 | 4:36PM 0.16 | 6:19AM 0.03 | 5:54PM 0.16 | 6:44AM 0.01 | |||||||||||||||||||||||||||||||||||||||||||||
Wednesday 30 | Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sunrise | - | - | - | 5:56 | - | - | - | - | - | - | - | 5:56 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:52 |
| Sunset | - | - | - | - | - | - | 6:50 | - | - | - | - | - | - | - | 6:50 | - | - | - | - | - | - | - | 6:51 | - | - | - | - | - | - | - | 6:51 | - | - | - | - | - | - | - | 6:51 | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - |
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Rain (mm) | 1 | 1 | - | - | - | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - |
| Temp. °C | 24 | 23 | 23 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 23 | 24 | 26 | 26 | 26 | 24 | 23 | 24 | 23 | 24 | 26 | 27 | 26 | 25 | 24 | 24 | 24 | 24 | 26 | 26 | 26 | 25 | 24 | 23 | 23 | 24 | 26 | 26 | 25 | 24 | 24 | 23 | 23 | 24 | 26 | 26 | 26 | 24 | 24 | 23 | 23 | 24 | 26 | 26 | 26 | 24 | 24 | 23 | 23 | 24 |
| Feels °C (?) | 27 | 26 | 26 | 27 | 28 | 27 | 27 | 28 | 26 | 27 | 25 | 26 | 28 | 28 | 27 | 24 | 23 | 25 | 24 | 25 | 28 | 27 | 27 | 25 | 25 | 26 | 27 | 25 | 28 | 27 | 28 | 27 | 26 | 24 | 25 | 25 | 28 | 29 | 26 | 25 | 25 | 24 | 25 | 25 | 27 | 27 | 26 | 24 | 25 | 24 | 24 | 24 | 27 | 27 | 26 | 23 | 23 | 22 | 22 | 24 |
- Map Icons:
Break
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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