Surf Forecasts:
How big are the waves at Grandma's today (16 Jul):
- Morning surf: Morning surf (16 Jul, local time) - 2ft (0.6m), 15s period with W swell.
- Afternoon surf: Afternoon surf (16 Jul, local time) - 2ft (0.6m), 17s period with SSW swell.
- Evening surf: Evening surf (16 Jul, local time) - 1.5ft (0.5m), 14s period with W swell.
The current surf forecast for Grandma's at 3AM is: 0.7m 16s primary swell from a Southwest direction and 0.6m 15s secondary swell from a West direction (forecast issued at 07:00pm July 15). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Jul) | 2ft (0.6m) | 15s |
| Afternoon (16 Jul) | 2ft (0.6m) | 17s |
| Evening (16 Jul) | 1.5ft (0.5m) | 14s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Wed night. Warm (max 28°C on Fri afternoon, min 24°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Wed 15 | Thursday 16 | Friday 17 | |||||||||||||||||
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) | W 15 | SSW 15 | SSW 15 | SW 16 | W 15 | W 15 | SSW 16 | SSW 17 | SSW 17 | W 14 | SSW 17 | SSW 17 | W 14 | W 14 | W 14 | SSW 16 | SSW 16 | SSW 16 | SSW 15 |
Wave Graph  | |||||||||||||||||||
 kJ | 163 | 188 | 209 | 251 | 159 | 155 | 173 | 188 | 197 | 106 | 264 | 170 | 106 | 104 | 103 | 82 | 142 | 215 | 176 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | glassy | glassy | cross-off | cross-off | cross-on | on | glassy | cross-off | off | off | cross-off | off | glassy | off | off | off | cross-off |
High Tide | 5:15PM0.85m | 5:39AM0.34m | 5:56PM0.78m | 6:35AM0.37m | 6:35PM0.70m | ||||||||||||||
Low Tide | 00:10AM0.03m | 10:42AM0.01m | 00:44AM0.03m | 11:35AM0.08m | |||||||||||||||
 |  |  | |  |  |  | | | | | | | | | | | | | |
 | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — |
 | 7:09 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:08 | — | — |
mm | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 25 | 25 | 24 | 25 | 27 | 27 | 27 | 26 | 25 | 25 | 25 | 26 | 27 | 28 | 27 | 26 | 26 |
Feels °C | 29 | 29 | 28 | 28 | 26 | 27 | 30 | 29 | 31 | 29 | 27 | 27 | 27 | 28 | 29 | 31 | 28 | 28 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 15 | SSW 15 | SW 16 | W 15 | W 15 | W 14 | W 14 | SSW 17 | W 14 | SSW 17 | SSW 17 | W 14 | W 14 | W 14 | WNW 14 | SSW 16 | SSW 16 | SSW 15 |
| kJ | 133 | 188 | 209 | 251 | 159 | 155 | 153 | 106 | 197 | 106 | 264 | 170 | 106 | 104 | 103 | 66 | 142 | 215 | 176 |
Swell 2 Height (m) Direction Period (s) | W 15 | W 15 | W 15 | W 15 | SSW 13 | SW 13 | SSW 16 | SSW 17 | W 14 | SW 13 | W 14 | W 14 | SW 11 | SSW 12 | SW 12 | SSW 16 | WNW 14 | WNW 14 | WNW 14 |
| kJ | 163 | 161 | 161 | 159 | 120 | 84 | 173 | 188 | 106 | 82 | 106 | 106 | 33 | 54 | 35 | 82 | 66 | 65 | 63 |
Swell 3 Height (m) Direction Period (s) | SSW 18 | NNE 8 | NNE 8 | NNE 8 | SSW 16 | SSW 16 | SW 13 | SW 13 | SSW 13 | SSW 17 | NNE 7 | SW 12 | SSW 17 | SSW 16 | SW 16 | SSW 12 | SSW 12 | ESE 6 | SE 6 |
| kJ | 121 | 23 | 12 | 12 | 102 | 100 | 82 | 82 | 65 | 99 | 10 | 25 | 99 | 90 | 65 | 54 | 55 | 7 | 9 |
Wind waves Height (m) Direction Period (s) | E 4 | E 4 | E 4 | E 4 | E 4 | E 5 | E 5 | E 5 | E 6 | E 6 | E 6 | E 5 | E 5 | E 5 | E 5 | E 5 | E 6 | E 6 | E 6 |
| kJ | 12 | 24 | 21 | 13 | 26 | 38 | 62 | 67 | 85 | 105 | 74 | 69 | 57 | 53 | 51 | 90 | 152 | 144 | 130 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 4 | 4 | 4 | 4 | 4 | 4 | 14 | 14 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 12 | 12 | 4 | 4 |
Best forecast wave conditions in Maui | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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