Surf Forecasts:
How big are the waves at Grandma's today (17 Jun):
- Morning surf: Morning surf (17 Jun, local time) - 3ft (0.9m), 13s period with SSW swell.
- Afternoon surf: Afternoon surf (17 Jun, local time) - 3ft (0.9m), 13s period with SSW swell.
- Evening surf: Evening surf (17 Jun, local time) - 3.5ft (1.0m), 16s period with S swell.
The current surf forecast for Grandma's at 8AM is: 0.9m 13s primary swell from a South-southwest direction and 0.5m 18s secondary swell from a South direction (forecast issued at 01:00am June 17). An open ocean swell of 0.2m 9s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Jun) | 3ft (0.9m) | 13s |
| Afternoon (17 Jun) | 3ft (0.9m) | 13s |
| Evening (17 Jun) | 3.5ft (1.0m) | 16s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Thu afternoon. Warm (max 27°C on Wed morning, min 24°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SSW 14 | SSW 13 | SSW 13 | S 18 | SSW 13 | SSW 13 | S 16 | S 16 | S 16 | S 16 | S 15 | S 14 | S 14 | S 14 | SSW 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 304 | 299 | 295 | 236 | 299 | 239 | 522 | 326 | 248 | 509 | 484 | 423 | 423 | 423 | 341 | 324 | 315 | 229 | 222 | 219 | 168 | 215 | 215 | 166 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | off | off | glassy | off | off | cross-off | glassy | glassy | glassy | glassy | cross-on | glassy | cross-off | glassy | glassy | glassy | glassy | glassy | glassy | glassy | cross-off | cross-off | glassy |
High Tide | 5:57AM0.24m | 6:24PM0.82m | 7:01AM0.27m | 7:10PM0.75m | 8:09AM0.30m | 7:56PM0.66m | ||||||||||||||||||
Low Tide | 00:50AM0.02m | 10:50AM-0.03m | 1:34AM0.02m | 11:45AM0.03m | 2:16AM0.02m | 12:44PM0.10m | ||||||||||||||||||
 | |  | |  | | | | | | | |  | |  | | | | | | | | | | |
 | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:08 | — | — | — | — | — | — | — | 7:08 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 24 | 25 | 27 | 27 | 27 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 27 | 26 | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 26 | 25 |
Feels °C | 28 | 26 | 27 | 30 | 29 | 29 | 28 | 29 | 29 | 29 | 30 | 29 | 30 | 30 | 30 | 31 | 29 | 29 | 30 | 30 | 30 | 30 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | S 16 | SSW 13 | SSW 13 | S 16 | S 15 | S 14 | S 14 | S 14 | SSW 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 |
| kJ | 304 | 299 | 295 | 236 | 299 | 239 | 522 | 170 | 222 | 509 | 484 | 423 | 423 | 423 | 341 | 324 | 315 | 229 | 222 | 219 | 168 | 215 | 215 | 166 |
Swell 2 Height (m) Direction Period (s) | SSW 18 | S 18 | S 18 | S 18 | S 18 | S 17 | WNW 10 | S 16 | S 16 | NW 10 | NNW 10 | NW 10 | NW 10 | NW 10 | SSW 20 | SSW 20 | SSW 19 | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 |
| kJ | 109 | 99 | 160 | 225 | 154 | 200 | 10 | 326 | 248 | 17 | 10 | 17 | 16 | 15 | 76 | 75 | 73 | 123 | 71 | 108 | 106 | 104 | 103 | 101 |
Swell 3 Height (m) Direction Period (s) | NW 11 | WNW 11 | WNW 10 | SSW 17 | SSW 18 | NNE 4 | N 8 | NW 10 | NW 10 | SW 22 | SW 21 | SW 16 | SSW 20 | SSW 20 | NW 10 | NNW 10 | NNW 10 | NW 9 | ESE 5 | SE 5 | SE 5 | NNW 9 | NNW 9 | ENE 6 |
| kJ | 18 | 11 | 10 | 29 | 30 | 4 | 5 | 16 | 16 | 18 | 18 | 10 | 40 | 39 | 15 | 9 | 9 | 14 | 3 | 4 | 4 | 8 | 8 | 4 |
Wind waves Height (m) Direction Period (s) | ESE 4 | E 4 | NNE 9 | — | NNE 8 | ESE 4 | E 4 | E 5 | E 5 | E 5 | E 5 | E 5 | — | — | — | — | E 5 | E 5 | E 5 | E 5 | ESE 5 | ESE 5 | — | — |
| kJ | 32 | 18 | 8 | — | 14 | 14 | 13 | 11 | 11 | 11 | 18 | 19 | — | — | — | — | 30 | 33 | 52 | 62 | 42 | 26 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 14 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
Best forecast wave conditions in Maui | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- 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.
Nearest