Surf Forecasts:
How big are the waves at Grandma's today (25 Aug):
- Morning surf: Morning surf (25 Aug, local time) - 1.5ft (0.5m), 16s period with SSW swell.
- Afternoon surf: Afternoon surf (25 Aug, local time) - 1.5ft (0.5m), 16s period with SSW swell.
- Evening surf: Evening surf (25 Aug, local time) - 1.5ft (0.5m), 15s period with SSW swell.
The current surf forecast for Grandma's at 5PM is: 0.5m 16s primary swell from a South-southwest direction and 0.5m 12s secondary swell from a South-southwest direction (forecast issued at 01:00pm August 25). An 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 (25 Aug) | 1.5ft (0.5m) | 16s |
| Afternoon (25 Aug) | 1.5ft (0.5m) | 16s |
| Evening (25 Aug) | 1.5ft (0.5m) | 15s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Tue afternoon, min 24°C on Tue night). Wind will be generally light. | |||||||||||||||||||||
Tue 25 | Wednesday 26 | Thursday 27 | |||||||||||||||||||
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) | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 18 | SSW 18 | SSW 14 | SSW 14 | S 18 | S 18 | S 19 | S 19 | S 19 | S 18 | S 17 | S 17 | S 17 | S 16 | S 15 | S 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 100 | 144 | 142 | 126 | 121 | 120 | 107 | 165 | 163 | 160 | 227 | 266 | 361 | 177 | 154 | 586 | 481 | 459 | 322 | 161 | 477 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | off | off | off | cross-off | off | off | off | cross-off | off | off | off | off |
High Tide | 2:49PM0.78m | 2:59AM0.40m | 3:22PM0.77m | 3:37AM0.44m | 3:54PM0.74m | ||||||||||||||||
Low Tide | 9:30PM0.12m | 8:15AM0.05m | 9:53PM0.10m | 8:58AM0.06m | 10:17PM0.08m | ||||||||||||||||
 | |  |  | |  | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — |
 | — | — | 6:47 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:45 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 29 | 28 | 26 | 26 | 25 | 24 | 26 | 27 | 28 | 27 | 25 | 25 | 25 | 24 | 25 | 27 | 28 | 27 | 25 | 25 |
Feels °C | 31 | 31 | 29 | 27 | 27 | 25 | 24 | 25 | 26 | 28 | 26 | 24 | 25 | 26 | 25 | 26 | 28 | 29 | 27 | 25 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 15 | SSW 14 | SSW 14 | S 18 | S 18 | S 19 | S 19 | S 19 | S 13 | S 17 | S 17 | S 17 | S 16 | S 15 | S 16 |
| kJ | 85 | 82 | 142 | 126 | 121 | 120 | 84 | 165 | 163 | 160 | 227 | 266 | 361 | 177 | 123 | 586 | 481 | 459 | 322 | 161 | 477 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 18 | SSW 18 | SSW 14 | SSW 14 | S 17 | SSW 13 | SSW 13 | S 18 | N 10 | S 12 | S 12 | SSW 12 | S 16 | N 9 |
| kJ | 100 | 144 | 82 | 82 | 56 | 55 | 55 | 108 | 107 | 115 | 62 | 140 | 99 | 98 | 154 | 8 | 73 | 73 | 46 | 127 | 14 |
Swell 3 Height (m) Direction Period (s) | SSE 12 | ESE 6 | SE 5 | SE 5 | SSW 18 | SSW 18 | SSW 18 | S 5 | E 5 | SSW 11 | SSW 12 | SSW 13 | ESE 5 | SSW 16 | SSW 16 | SE 11 | N 10 | N 10 | ESE 7 | SSW 12 | W 9 |
| kJ | 46 | 8 | 14 | 6 | 109 | 107 | 107 | 2 | 4 | 25 | 44 | 59 | 5 | 87 | 86 | 4 | 7 | 16 | 4 | 46 | 2 |
Wind waves Height (m) Direction Period (s) | E 6 | E 6 | E 6 | E 6 | E 6 | E 8 | E 7 | E 5 | E 5 | E 6 | E 6 | E 6 | E 6 | E 5 | N 10 | E 6 | E 6 | E 6 | NNE 6 | NNE 3 | E 6 |
| kJ | 108 | 228 | 167 | 136 | 106 | 168 | 8 | 5 | 54 | 133 | 134 | 108 | 105 | 70 | 8 | 62 | 75 | 101 | 12 | 2 | 92 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 4 | 13 | 4 | 4 | 12 | 12 | 12 | 12 | 4 | 12 | 12 | 12 | 12 | 4 | 4 | 4 | 4 | 12 | 12 | 4 |
Best forecast wave conditions in Maui | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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