Surf Forecasts:
How big are the waves at Grandma's today (13 Oct):
- Morning surf: Morning surf (13 Oct, local time) - 2ft (0.6m), 15s period with NW swell.
- Afternoon surf: Afternoon surf (13 Oct, local time) - 2ft (0.6m), 15s period with NW swell.
- Evening surf: Evening surf (13 Oct, local time) - 2ft (0.6m), 14s period with NW swell.
The current surf forecast for Grandma's at 4PM is: 0.6m 14s primary swell from a Northwest direction and 0.6m 13s secondary swell from a South direction (forecast issued at 01:00pm October 13). An open ocean swell of 0.8m 5s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Oct) | 2ft (0.6m) | 15s |
| Afternoon (13 Oct) | 2ft (0.6m) | 15s |
| Evening (13 Oct) | 2ft (0.6m) | 14s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Thu afternoon. Warm (max 28°C on Tue afternoon, min 24°C on Tue night). Wind will be generally light. | |||||||||||||||||||||
Tue 13 | Wednesday 14 | Thursday 15 | |||||||||||||||||||
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) | NW 15 | NW 15 | NW 14 | S 13 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 13 | NW 13 | SW 18 | S 20 | S 19 | S 19 | S 19 | S 18 | S 18 | S 18 | S 18 | S 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 176 | 171 | 169 | 121 | 160 | 149 | 144 | 142 | 140 | 138 | 138 | 83 | 194 | 190 | 190 | 181 | 107 | 222 | 225 | 156 | 149 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | off | cross-off | off | off | off | off | cross-off | glassy | off | cross-off | off | cross-off | off | off | off | off | off | off | off |
High Tide | 5:24PM0.35m | 6:27AM0.73m | 6:09PM0.31m | 7:18AM0.70m | 7:15PM0.28m | ||||||||||||||||
Low Tide | 12:19PM0.19m | 10:55PM0.07m | 1:18PM0.20m | 11:33PM0.09m | 2:28PM0.21m | ||||||||||||||||
 | | |  | | | | | | | | | | | | | |  |  |  |  | |
 | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | — | — | 6:02 | — | — | — | — | — | — | — | 6:02 | — | — | — | — | — | — | — | 6:01 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — |
Temp °C | 27 | 28 | 27 | 25 | 25 | 24 | 24 | 25 | 27 | 27 | 27 | 25 | 25 | 24 | 24 | 25 | 27 | 28 | 27 | 25 | 25 |
Feels °C | 29 | 31 | 29 | 26 | 26 | 26 | 25 | 27 | 28 | 29 | 27 | 24 | 26 | 25 | 26 | 26 | 29 | 29 | 27 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | NW 15 | NW 15 | NW 14 | NW 14 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 13 | NW 13 | NNW 13 | NNW 13 | NNW 12 | NNW 12 | NNW 12 | NW 12 | S 18 | S 18 | S 18 | S 17 |
| kJ | 176 | 171 | 169 | 208 | 160 | 149 | 144 | 142 | 140 | 138 | 138 | 113 | 109 | 101 | 98 | 96 | 69 | 222 | 225 | 156 | 149 |
Swell 2 Height (m) Direction Period (s) | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 19 | S 11 | S 11 | NW 12 | NNW 12 | NNW 12 | NNW 11 |
| kJ | 89 | 123 | 123 | 121 | 119 | 112 | 102 | 100 | 98 | 98 | 68 | 68 | 68 | 68 | 190 | 58 | 57 | 69 | 54 | 52 | 48 |
Swell 3 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 17 | SW 18 | SW 18 | SW 18 | SW 18 | S 20 | S 19 | S 12 | S 19 | S 18 | S 11 | S 11 | S 11 | S 11 |
| kJ | 66 | 66 | 64 | 64 | 65 | 67 | 67 | 70 | 80 | 80 | 82 | 83 | 194 | 190 | 67 | 181 | 107 | 37 | 37 | 37 | 37 |
Wind waves Height (m) Direction Period (s) | E 7 | — | E 5 | E 5 | E 5 | E 4 | E 4 | E 4 | E 4 | NNE 4 | NNE 5 | NNE 5 | NNE 5 | E 4 | E 5 | E 5 | E 5 | E 6 | E 6 | E 6 | E 6 |
| kJ | 134 | — | 36 | 60 | 4 | 24 | 12 | 18 | 16 | 3 | 7 | 9 | 5 | 20 | 27 | 4 | 31 | 152 | 158 | 112 | 108 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 12 | 4 | 4 | 4 | 4 | 4 | 4 | 13 | 12 | 12 |
Best forecast wave conditions in Maui | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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