Surf Forecasts:
How big are the waves at Grandma's today (15 Aug):
- Morning surf: Morning surf (15 Aug, local time) - 2.5ft (0.7m), 13s period with S swell.
- Afternoon surf: Afternoon surf (15 Aug, local time) - 2.5ft (0.7m), 13s period with S swell.
- Evening surf: Evening surf (15 Aug, local time) - 2.5ft (0.7m), 13s period with S swell.
The current surf forecast for Grandma's at 7PM is: 0.7m 13s primary swell from a South direction (forecast issued at 01:00pm August 15). An open ocean swell of 0.4m 7s is not directed at the surf break, a second open ocean swell of 1.4m 11s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Aug) | 2.5ft (0.7m) | 13s |
| Afternoon (15 Aug) | 2.5ft (0.7m) | 13s |
| Evening (15 Aug) | 2.5ft (0.7m) | 13s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Sat night. Warm (max 28°C on Sat afternoon, min 24°C on Mon night). Wind will be generally light. | |||||||||||||||||||||
Sat 15 | Sunday 16 | Monday 17 | |||||||||||||||||||
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 13 | S 13 | S 13 | S 13 | S 13 | SSE 10 | S 12 | S 10 | S 16 | S 13 | S 16 | S 16 | S 13 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 173 | 171 | 171 | 173 | 176 | 286 | 604 | 410 | 188 | 125 | 125 | 125 | 168 | 272 | 268 | 268 | 203 | 264 | 257 | 195 | 181 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | off | cross-off | cross-off | off | glassy | glassy | cross | glassy | glassy | cross-off | glassy | cross-off | off | cross-off | cross-off | off | off | cross-off |
High Tide | 5:57PM0.61m | 6:53AM0.54m | 6:31PM0.53m | 7:48AM0.57m | 7:05PM0.45m | ||||||||||||||||
Low Tide | 11:28AM0.13m | 00:14AM0.05m | 12:23PM0.19m | 00:44AM0.05m | 1:27PM0.24m | ||||||||||||||||
 |  | |  | |  | |  | | | |  | | | | | |  | | | | |
 | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | — | — | 6:54 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:53 | — | — |
mm | 1 | — | — | — | — | 2 | 1 | 2 | — | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 28 | 27 | 27 | 25 | 26 | 25 | 27 | 28 | 28 | 27 | 26 | 26 | 26 | 26 | 27 | 28 | 27 | 25 | 25 |
Feels °C | 28 | 27 | 27 | 27 | 26 | 26 | 30 | 30 | 32 | 32 | 33 | 32 | 30 | 31 | 31 | 30 | 30 | 30 | 29 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | S 13 | S 13 | S 13 | S 13 | ESE 10 | SSE 10 | S 12 | S 10 | S 8 | S 7 | S 7 | S 7 | S 6 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 |
| kJ | 173 | 171 | 171 | 173 | 272 | 286 | 604 | 410 | 153 | 108 | 96 | 88 | 78 | 272 | 268 | 268 | 203 | 264 | 257 | 195 | 181 |
Swell 2 Height (m) Direction Period (s) | ESE 12 | ESE 11 | NNE 7 | NNE 7 | S 13 | S 13 | ESE 9 | S 17 | S 10 | S 13 | S 13 | S 13 | S 13 | S 6 | S 6 | S 6 | S 5 | ESE 5 | ESE 6 | SE 6 | SE 5 |
| kJ | 121 | 103 | 16 | 18 | 176 | 156 | 26 | 91 | 96 | 125 | 86 | 123 | 168 | 47 | 24 | 15 | 9 | 3 | 6 | 9 | 4 |
Swell 3 Height (m) Direction Period (s) | W 11 | W 11 | W 11 | S 18 | NNE 8 | NNE 8 | S 18 | S 14 | S 16 | S 9 | S 16 | S 16 | S 16 | NNE 6 | ESE 6 | SSW 18 | SSW 18 | SSW 19 | SSW 19 | SSW 5 | SSW 6 |
| kJ | 9 | 10 | 10 | 56 | 19 | 11 | 55 | 65 | 188 | 43 | 125 | 125 | 129 | 8 | 4 | 31 | 31 | 34 | 37 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | NNE 7 | NNE 7 | ESE 11 | ESE 11 | E 10 | ESE 10 | ENE 3 | E 3 | E 8 | E 8 | E 8 | ESE 7 | ESE 6 | E 8 | E 8 | E 8 | E 5 | E 5 | E 6 | E 6 | E 5 |
| kJ | 37 | 43 | 407 | 469 | 4339 | 52 | 7 | 5 | 511 | 438 | 382 | 452 | 305 | 203 | 256 | 222 | 100 | 119 | 178 | 139 | 100 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 123 | 123 | 345 | 146 | 111 | 13 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 12 | 4 |
Best forecast wave conditions in Maui | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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