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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 Thursday 05 Mar 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
24.5° 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 1PM is: 0.1m 10s primary swell from a Northwest direction and 0.2m 6s secondary swell from a South direction (forecast issued at 07:00am March 05). An open ocean swell of 0.4m 8s is not directed at the surf break, a second open ocean swell of 1.8m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (05 Mar) | 0.5ft (0.2m) | 5s |
| Afternoon (05 Mar) | 0.5ft (0.2m) | 6s |
| Evening (05 Mar) | 0.5ft (0.2m) | 11s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 05 | Friday 06 | Saturday 07 | Sun 08 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 5 | 6 | 6 | 11 | 11 | 12 | 12 | 12 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 12 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 16 | 5 | 2 | 4 | 10 | 10 | 11 | 11 | 11 | 18 | 17 | 17 | 27 | 27 | 17 | 27 | 25 | 20 | 14 | 14 | 23 | 14 | 14 | 14 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | glass | glass | cross- on | glass | cross | cross | glass | cross- off | cross- off | cross | glass | glass | glass | glass | off | off | glass | glass | cross- on | cross- on | cross | cross- off | glass |
High Tide / height (m) | 5:05AM 0.53 | 5:49PM 0.54 | 5:35AM 0.46 | 6:33PM 0.55 | 6:05AM 0.39 | 7:22PM 0.56 | ||||||||||||||||||
Low Tide / height (m) | 11:09AM -0.01 | 11:34PM 0.10 | 11:37AM -0.01 | 12:26AM 0.14 | 12:07PM 0.00 | 1:27AM 0.18 | ||||||||||||||||||
Thursday 05 | Friday 06 | Saturday 07 | Sun 08 | |||||||||||||||||||||
| Sunrise | - | 6:43 | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:32 | - | - | - |
 |  | | |  | | | | | | | | |  | | |  |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 23 | 25 | 26 | 25 | 25 | 24 | 23 | 23 | 24 | 25 | 25 | 25 | 24 | 23 | 22 | 22 | 22 | 25 | 26 | 25 | 24 | 23 | 23 |
| Feels °C (?) | 25 | 25 | 27 | 27 | 27 | 27 | 26 | 25 | 25 | 25 | 26 | 27 | 28 | 27 | 25 | 24 | 23 | 24 | 27 | 27 | 26 | 26 | 24 | 25 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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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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