Surf Forecasts:
How big are the waves at Grandma's today (01 Sep):
- Morning surf: Morning surf (01 Sep, local time) - 2ft (0.6m), 18s period with SSW swell.
- Afternoon surf: Afternoon surf (01 Sep, local time) - 2ft (0.6m), 18s period with SSW swell.
- Evening surf: Evening surf (01 Sep, local time) - 2ft (0.6m), 18s period with SSW swell.
The current surf forecast for Grandma's at 1AM is: 0.4m 19s primary swell from a South-southwest direction and 0.4m 10s secondary swell from a South direction (forecast issued at 07:00pm August 31). An open ocean swell of 1.3m 6s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 Sep) | 2ft (0.6m) | 18s |
| Afternoon (01 Sep) | 2ft (0.6m) | 18s |
| Evening (01 Sep) | 2ft (0.6m) | 18s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Tue afternoon, min 25°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Mon 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||||
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 19 | SSW 19 | SSW 19 | SSW 19 | SSW 19 | SSW 18 | S 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | S 16 | S 16 | S 16 | S 15 | S 15 |
Wave Graph  | |||||||||||||||||||
 kJ | 115 | 124 | 125 | 148 | 205 | 251 | 404 | 249 | 249 | 246 | 307 | 363 | 443 | 350 | 334 | 326 | 310 | 287 | 215 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-off | off | off | cross-off | off | off | off | off | cross-off | cross-off | off | off | cross-off | off | off | off |
High Tide | 5:56PM0.49m | 7:18AM0.64m | 6:34PM0.42m | 8:23AM0.67m | 7:26PM0.35m | ||||||||||||||
Low Tide | 00:11AM0.04m | 1:23PM0.23m | 00:50AM0.05m | 2:50PM0.25m | |||||||||||||||
 |  |  | | |  | | | | | | | | | | | | | | |
 | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | 6:43 | — | — | — | — | — | — | — | 6:42 | — | — | — | — | — | — | — | 6:40 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 25 | 25 | 25 | 26 | 28 | 29 | 28 | 26 | 26 | 25 | 25 | 26 | 28 | 28 | 28 | 26 | 25 |
Feels °C | 25 | 26 | 25 | 25 | 26 | 26 | 28 | 31 | 29 | 27 | 28 | 28 | 28 | 28 | 30 | 28 | 28 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 19 | S 10 | S 10 | SSW 19 | SSW 19 | SSW 18 | S 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | S 16 | S 16 | S 16 | S 15 | S 15 |
| kJ | 115 | 35 | 33 | 148 | 205 | 251 | 404 | 249 | 249 | 246 | 307 | 363 | 443 | 350 | 334 | 326 | 310 | 287 | 215 |
Swell 2 Height (m) Direction Period (s) | S 11 | SSW 19 | SSW 19 | S 10 | S 10 | SSE 10 | NNE 7 | S 13 | S 12 | N 6 | NNE 7 | S 10 | NNE 7 | NNE 7 | SE 6 | SE 6 | SE 6 | ESE 7 | ESE 6 |
| kJ | 35 | 124 | 125 | 32 | 31 | 31 | 16 | 50 | 49 | 22 | 15 | 35 | 10 | 10 | 9 | 9 | 11 | 18 | 15 |
Swell 3 Height (m) Direction Period (s) | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | SW 14 | NNE 7 | SW 14 | S 12 | S 12 | NNE 7 | SE 6 | S 10 | S 10 | NNE 7 | NNE 7 | S 11 | S 11 |
| kJ | 18 | 17 | 17 | 10 | 10 | 16 | 32 | 15 | 32 | 44 | 41 | 9 | 5 | 18 | 18 | 9 | 9 | 20 | 21 |
Wind waves Height (m) Direction Period (s) | E 6 | E 6 | E 6 | E 6 | E 5 | E 8 | E 8 | E 6 | NNE 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 7 | E 7 | E 7 | E 6 |
| kJ | 123 | 89 | 125 | 95 | 47 | 270 | 239 | 154 | 33 | 212 | 125 | 85 | 121 | 148 | 245 | 248 | 248 | 308 | 253 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 4 | 12 | 12 | 12 | 4 | 4 | 4 | 4 | 188 | 13 | 13 | 12 |
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