Surf Forecasts:
How big are the waves at Grandma's today (11 Sep):
- Morning surf: Morning surf (11 Sep, local time) - 2ft (0.6m), 16s period with SSW swell.
- Afternoon surf: Afternoon surf (11 Sep, local time) - 2ft (0.6m), 15s period with SSW swell.
- Evening surf: Evening surf (11 Sep, local time) - 2ft (0.6m), 15s period with SSW swell.
The current surf forecast for Grandma's at 2PM is: 0.6m 15s primary swell from a South-southwest direction and 0.4m 12s secondary swell from a South direction (forecast issued at 07:00am September 11). The wind direction is predicted to be glassy.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Sep) | 2ft (0.6m) | 16s |
| Afternoon (11 Sep) | 2ft (0.6m) | 15s |
| Evening (11 Sep) | 2ft (0.6m) | 15s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Fri morning, min 24°C on Fri night). Wind will be generally light. | |||||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||||||||
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 | 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 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SSW 14 | SSW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 173 | 173 | 171 | 156 | 150 | 150 | 148 | 148 | 148 | 148 | 158 | 66 | 66 | 64 | 64 | 64 | 75 | 148 | 57 | 55 | 54 | 54 | 33 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | glassy | glassy | off | cross-off | off | off | off | off | glassy | glassy | off | cross-off | cross-off | off | off | off | glassy | glassy | cross-off | cross-off | cross-off |
High Tide | 4:08AM0.57m | 4:14PM0.66m | 4:49AM0.61m | 4:47PM0.58m | 5:30AM0.64m | 5:19PM0.50m | |||||||||||||||||
Low Tide | 9:46AM0.09m | 10:20PM0.05m | 10:34AM0.12m | 10:45PM0.05m | 11:25AM0.16m | ||||||||||||||||||
 |  | | |  | | | | | | | | | | | | | | | | | | | |
 | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | — | — | — | 6:32 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:30 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 25 | 27 | 27 | 27 | 25 | 25 | 24 | 24 | 25 | 27 | 27 | 26 | 25 | 25 | 24 | 24 | 25 | 27 | 27 | 26 | 25 | 25 |
Feels °C | 25 | 27 | 29 | 30 | 29 | 26 | 26 | 25 | 26 | 27 | 30 | 30 | 28 | 25 | 26 | 26 | 26 | 26 | 29 | 29 | 26 | 25 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SSW 14 | SSW 15 | SW 12 | SW 15 | SW 15 | SW 14 | SW 14 |
| kJ | 173 | 173 | 171 | 156 | 150 | 150 | 148 | 148 | 148 | 148 | 158 | 49 | 47 | 45 | 45 | 44 | 75 | 148 | 39 | 55 | 54 | 54 | 33 |
Swell 2 Height (m) Direction Period (s) | SSW 12 | SSW 12 | S 12 | S 12 | S 12 | S 11 | S 12 | SSW 11 | SW 8 | S 11 | S 11 | SW 16 | NNE 9 | SW 16 | SW 16 | SW 16 | NNE 9 | NNE 9 | SW 15 | SW 12 | SW 12 | SW 12 | SW 12 |
| kJ | 45 | 47 | 43 | 42 | 42 | 41 | 42 | 25 | 11 | 20 | 21 | 66 | 15 | 64 | 64 | 64 | 15 | 15 | 57 | 23 | 23 | 23 | 23 |
Swell 3 Height (m) Direction Period (s) | SW 10 | SW 9 | SW 9 | SW 9 | NNE 8 | SW 9 | SW 9 | SW 9 | SSW 11 | SW 9 | SW 8 | NNE 8 | SW 16 | NNE 9 | NNE 9 | NNE 9 | SSW 16 | SE 5 | NNE 9 | NNE 8 | S 10 | NNE 8 | NNE 8 |
| kJ | 23 | 13 | 13 | 12 | 11 | 12 | 12 | 12 | 24 | 12 | 11 | 7 | 66 | 15 | 15 | 15 | 25 | 3 | 15 | 7 | 7 | 7 | 7 |
Wind waves Height (m) Direction Period (s) | E 5 | E 5 | E 5 | — | ESE 4 | E 11 | E 10 | E 4 | E 4 | E 4 | E 4 | — | ESE 4 | E 9 | E 5 | E 5 | E 5 | E 4 | — | N 2 | NNE 3 | NNE 4 | NNE 5 |
| kJ | 66 | 44 | 28 | — | 15 | 274 | 264 | 24 | 12 | 8 | 7 | — | 8 | 132 | 50 | 52 | 41 | 19 | — | 1 | 9 | 12 | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 12 | 4 | 4 | 4 | 4 | 4 | 12 | 12 | 12 | 12 |
Best forecast wave conditions in Maui | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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