Surf Forecasts:
How big are the waves at Grandma's today (11 Jul):
- Morning surf: Morning surf (11 Jul, local time) - 1.5ft (0.5m), 19s period with SW swell.
- Afternoon surf: Afternoon surf (11 Jul, local time) - 1.5ft (0.5m), 18s period with SW swell.
- Evening surf: Evening surf (11 Jul, local time) - 2ft (0.6m), 18s period with SSW swell.
The current surf forecast for Grandma's at 10PM is: 0.6m 18s primary swell from a South-southwest direction (forecast issued at 01:00pm July 11). An open ocean swell of 0.4m 6s is not directed at the surf break, a second open ocean swell of 1.5m 6s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Jul) | 1.5ft (0.5m) | 19s |
| Afternoon (11 Jul) | 1.5ft (0.5m) | 18s |
| Evening (11 Jul) | 2ft (0.6m) | 18s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Tue morning. Warm (max 28°C on Sat afternoon, min 23°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 11 | Sunday 12 | Monday 13 | Tue 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 | 2 AM | 5 AM | 8 AM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SW 18 | SW 18 | SW 18 | SSW 18 | SSW 18 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SSW 14 | SSW 14 | SW 14 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 162 | 155 | 152 | 204 | 204 | 243 | 241 | 230 | 211 | 206 | 203 | 201 | 201 | 251 | 248 | 242 | 232 | 176 | 171 | 169 | 167 | 136 | 133 | 155 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | off | cross-off | off | off | off | off | off | off | off | off | off | cross-off | off | cross-off | off | off | cross-off | off | cross-off | off | off |
High Tide | 2:17PM0.85m | 2:04AM0.25m | 3:04PM0.89m | 3:01AM0.26m | 3:49PM0.91m | 3:54AM0.28m | ||||||||||||||||||
Low Tide | 9:30PM0.10m | 7:20AM-0.08m | 10:15PM0.06m | 8:11AM-0.08m | 10:56PM0.05m | |||||||||||||||||||
 | | |  | | | | | | | | | | | |  | | | | | | |  | | |
 | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — |
 | — | — | 7:10 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | 7:09 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 28 | 26 | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 24 | 24 | 24 | 24 | 25 | 27 | 27 | 26 | 25 | 24 | 24 | 23 | 24 |
Feels °C | 30 | 29 | 29 | 27 | 28 | 26 | 26 | 27 | 29 | 27 | 26 | 23 | 24 | 24 | 24 | 24 | 27 | 28 | 26 | 25 | 24 | 25 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 18 | SSW 18 | SSW 18 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SSW 14 | SSW 14 | SW 14 |
| kJ | 162 | 155 | 152 | 204 | 204 | 243 | 241 | 230 | 211 | 206 | 203 | 201 | 201 | 251 | 248 | 242 | 232 | 176 | 171 | 169 | 167 | 136 | 133 | 155 |
Swell 2 Height (m) Direction Period (s) | NNE 7 | NNE 7 | NNE 7 | N 7 | SE 6 | SE 6 | NNE 7 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | ESE 6 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | N 7 | N 7 | W 18 | W 18 | W 18 | W 17 |
| kJ | 16 | 15 | 15 | 15 | 9 | 9 | 17 | 19 | 19 | 19 | 20 | 20 | 19 | 15 | 18 | 17 | 16 | 9 | 8 | 8 | 55 | 97 | 97 | 90 |
Swell 3 Height (m) Direction Period (s) | W 14 | S 12 | SE 6 | S 11 | NNE 7 | NNE 7 | SE 5 | SE 6 | SE 6 | SE 6 | SE 6 | ESE 6 | SE 5 | NNE 8 | SE 5 | W 12 | ESE 8 | S 11 | W 19 | W 18 | N 7 | SW 18 | SW 18 | SW 19 |
| kJ | 36 | 25 | 9 | 23 | 9 | 15 | 7 | 8 | 8 | 9 | 8 | 10 | 7 | 19 | 4 | 26 | 7 | 9 | 63 | 55 | 8 | 81 | 86 | 94 |
Wind waves Height (m) Direction Period (s) | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 8 | E 6 | E 6 | E 6 | E 6 | E 8 | E 8 | E 8 | E 8 | E 5 | E 5 | E 5 | E 8 | E 8 |
| kJ | 175 | 170 | 207 | 120 | 175 | 149 | 105 | 96 | 80 | 120 | 381 | 99 | 170 | 144 | 74 | 298 | 298 | 258 | 289 | 115 | 54 | 40 | 122 | 119 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 12 | 4 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 4 | 4 | 12 | 12 | 12 | 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