Surf Forecasts:
How big are the waves at Grandma's today (12 Oct):
- Morning surf: Morning surf (12 Oct, local time) - 2ft (0.6m), 15s period with S swell.
- Afternoon surf: Afternoon surf (12 Oct, local time) - 2ft (0.6m), 15s period with S swell.
- Evening surf: Evening surf (12 Oct, local time) - 2.5ft (0.7m), 14s period with S swell.
The current surf forecast for Grandma's at 4PM is: 0.6m 15s primary swell from a South direction (forecast issued at 01:00pm October 12). An open ocean swell of 0.4m 17s is not directed at the surf break, a second 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 (12 Oct) | 2ft (0.6m) | 15s |
| Afternoon (12 Oct) | 2ft (0.6m) | 15s |
| Evening (12 Oct) | 2.5ft (0.7m) | 14s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Mon afternoon, min 24°C on Tue night). Wind will be generally light. | |||||||||||||||||||||
Mon 12 | Tuesday 13 | Wednesday 14 | |||||||||||||||||||
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) | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | NW 16 | NW 15 | NW 15 | NW 15 | S 13 | NW 14 | NW 14 | NW 14 | NW 13 | NW 13 | SW 18 | SW 18 | NW 13 | S 12 | S 20 |
Wave Graph  | |||||||||||||||||||||
 kJ | 155 | 150 | 209 | 205 | 153 | 138 | 196 | 181 | 176 | 171 | 123 | 164 | 160 | 149 | 144 | 142 | 101 | 79 | 138 | 68 | 194 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-off | glassy | glassy | glassy | cross-off | cross-off | cross-off | glassy | glassy | cross-off | cross-off | cross-off | off | off | glassy | glassy | off | cross-off | off |
High Tide | 4:47PM0.39m | 5:43AM0.74m | 5:24PM0.35m | 6:27AM0.73m | 6:09PM0.31m | ||||||||||||||||
Low Tide | 11:27AM0.17m | 10:21PM0.05m | 12:19PM0.19m | 10:55PM0.07m | 1:18PM0.20m | ||||||||||||||||
 | | |  | |  | |  | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | — | — | 6:04 | — | — | — | — | — | — | — | 6:02 | — | — | — | — | — | — | — | 6:02 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 27 | 26 | 25 | 25 | 25 | 26 | 27 | 27 | 27 | 25 | 25 | 24 | 24 | 24 | 26 | 27 | 26 | 25 | 24 |
Feels °C | 30 | 30 | 29 | 30 | 29 | 29 | 28 | 29 | 30 | 30 | 30 | 26 | 27 | 26 | 25 | 25 | 28 | 29 | 27 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | NW 16 | NW 15 | NW 15 | NW 15 | NW 14 | NW 14 | NW 14 | NW 14 | NW 13 | NW 13 | NNW 13 | NNW 13 | NW 13 | NNW 13 | S 12 |
| kJ | 155 | 150 | 209 | 205 | 153 | 138 | 196 | 181 | 176 | 171 | 214 | 164 | 160 | 149 | 144 | 142 | 116 | 114 | 138 | 113 | 101 |
Swell 2 Height (m) Direction Period (s) | SSW 12 | SW 17 | NNW 17 | NW 16 | NW 16 | NNW 16 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | NNW 13 |
| kJ | 48 | 71 | 119 | 130 | 129 | 171 | 126 | 126 | 89 | 123 | 123 | 121 | 119 | 112 | 71 | 69 | 101 | 68 | 68 | 68 | 109 |
Swell 3 Height (m) Direction Period (s) | SW 17 | NNW 18 | SW 16 | SSW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 17 | SW 18 | SW 18 | SW 18 | NNE 5 | S 20 |
| kJ | 47 | 123 | 96 | 104 | 67 | 67 | 65 | 68 | 66 | 66 | 64 | 64 | 65 | 67 | 65 | 70 | 80 | 79 | 79 | 8 | 194 |
Wind waves Height (m) Direction Period (s) | — | — | E 8 | E 5 | E 8 | E 6 | E 7 | E 7 | E 7 | ENE 5 | E 5 | E 5 | E 5 | E 5 | E 4 | E 4 | E 4 | ENE 4 | NNE 3 | E 4 | E 5 |
| kJ | — | — | 146 | 27 | 187 | 92 | 126 | 168 | 142 | 5 | 100 | 104 | 68 | 50 | 38 | 38 | 25 | 2 | 6 | 13 | 42 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 12 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 12 | 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