Surf Forecasts:
How big are the waves at Grandma's today (23 Aug):
- Morning surf: Morning surf (23 Aug, local time) - 1.5ft (0.5m), 15s period with SW swell.
- Afternoon surf: Afternoon surf (23 Aug, local time) - 1.5ft (0.4m), 16s period with SSW swell.
- Evening surf: Evening surf (23 Aug, local time) - 1.5ft (0.4m), 15s period with SSW swell.
The current surf forecast for Grandma's at 4PM is: 0.4m 15s primary swell from a South-southwest direction (forecast issued at 01:00pm August 23). An open ocean swell of 0.3m 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 cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Aug) | 1.5ft (0.5m) | 15s |
| Afternoon (23 Aug) | 1.5ft (0.4m) | 16s |
| Evening (23 Aug) | 1.5ft (0.4m) | 15s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Mon afternoon. Warm (max 29°C on Mon morning, min 24°C on Tue night). Wind will be generally light. | |||||||||||||||||||||
Sun 23 | Monday 24 | Tuesday 25 | |||||||||||||||||||
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) | SW 15 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 109 | 82 | 89 | 73 | 81 | 140 | 138 | 116 | 107 | 102 | 101 | 99 | 98 | 92 | 102 | 147 | 85 | 144 | 142 | 126 | 121 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | cross-off | glassy | glassy | glassy | cross-off | off | cross-off | off | off | off | cross-off | off | off | off |
High Tide | 1:33PM0.75m | 1:37AM0.34m | 2:13PM0.77m | 2:20AM0.37m | 2:49PM0.78m | ||||||||||||||||
Low Tide | 8:41PM0.16m | 6:44AM0.07m | 9:06PM0.14m | 7:31AM0.05m | 9:30PM0.12m | ||||||||||||||||
 | | |  | | | | | |  | |  | | |  |  | | | | | | |
 | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — |
 | — | — | 6:49 | — | — | — | — | — | — | — | 6:49 | — | — | — | — | — | — | — | 6:47 | — | — |
mm | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 28 | 28 | 27 | 26 | 26 | 26 | 27 | 29 | 28 | 28 | 27 | 27 | 26 | 25 | 26 | 28 | 29 | 27 | 26 | 25 |
Feels °C | 31 | 29 | 28 | 28 | 28 | 29 | 29 | 31 | 34 | 32 | 32 | 31 | 30 | 29 | 26 | 27 | 29 | 31 | 28 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 16 | SSW 15 | SSW 15 |
| kJ | 109 | 54 | 89 | 73 | 81 | 140 | 138 | 116 | 107 | 102 | 101 | 99 | 98 | 92 | 87 | 85 | 85 | 82 | 142 | 126 | 121 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SSW 16 | NNE 6 | SW 14 | SE 7 | ESE 7 | SE 7 | SE 7 | ESE 7 | SSE 12 | SSE 12 | E 7 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 12 | SSW 12 | SSW 12 |
| kJ | 22 | 82 | 6 | 52 | 12 | 19 | 12 | 12 | 19 | 48 | 47 | 15 | 59 | 90 | 102 | 147 | 85 | 144 | 82 | 82 | 56 |
Swell 3 Height (m) Direction Period (s) | S 11 | SE 7 | SW 15 | SE 8 | SSW 15 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | ESE 7 | E 7 | SSW 18 | ESE 7 | ESE 7 | SSE 12 | SSE 11 | SSE 12 | SSE 12 | ESE 6 | SE 6 | SSW 18 |
| kJ | 23 | 13 | 33 | 14 | 72 | 33 | 32 | 30 | 49 | 10 | 8 | 61 | 9 | 9 | 44 | 43 | 27 | 26 | 7 | 5 | 108 |
Wind waves Height (m) Direction Period (s) | E 6 | E 6 | E 6 | NNE 6 | E 7 | E 7 | E 7 | E 7 | E 7 | N 5 | N 5 | N 5 | E 6 | E 6 | E 8 | E 6 | E 6 | E 6 | E 6 | NNE 2 | E 6 |
| kJ | 256 | 176 | 273 | 6 | 286 | 289 | 222 | 297 | 388 | 2 | 5 | 5 | 170 | 151 | 217 | 166 | 162 | 218 | 187 | 2 | 137 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 4 | 4 | 12 | 12 | 12 | 4 | 4 | 4 | 4 | 4 | 14 | 12 | 4 | 4 | 4 | 12 | 12 | 4 | 12 | 12 |
Best forecast wave conditions in Maui | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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