Surf Forecasts:
How big are the waves at Grandma's today (09 Sep):
- Morning surf: Morning surf (09 Sep, local time) - 3ft (0.9m), 14s period with SSW swell.
- Afternoon surf: Afternoon surf (09 Sep, local time) - 2.5ft (0.7m), 14s period with SSW swell.
- Evening surf: Evening surf (09 Sep, local time) - 2.5ft (0.7m), 13s period with SSW swell.
The current surf forecast for Grandma's at 9AM is: 0.9m 14s primary swell from a South-southwest direction and 0.8m 8s secondary swell from a South-southwest direction (forecast issued at 01:00am September 09). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 Sep) | 3ft (0.9m) | 14s |
| Afternoon (09 Sep) | 2.5ft (0.7m) | 14s |
| Evening (09 Sep) | 2.5ft (0.7m) | 13s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Wed afternoon. Warm (max 28°C on Wed morning, min 24°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | ||||||||||||||||||||||
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 | 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 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SW 16 | SW 16 | SW 17 | SW 18 | SW 18 | SW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 289 | 285 | 277 | 269 | 207 | 187 | 181 | 135 | 133 | 133 | 131 | 132 | 148 | 154 | 150 | 138 | 175 | 173 | 173 | 171 | 156 | 150 | 148 | 148 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | glassy | cross-on | cross | glassy | glassy | glassy | off | off | cross-off | glassy | off | off | off | off | cross-off | off | glassy | glassy | off | cross-off | off |
High Tide | 2:43AM0.46m | 3:01PM0.78m | 3:26AM0.52m | 3:38PM0.73m | 4:08AM0.57m | 4:14PM0.66m | ||||||||||||||||||
Low Tide | 8:05AM0.05m | 9:29PM0.06m | 8:56AM0.06m | 9:54PM0.05m | 9:46AM0.09m | 10:20PM0.05m | ||||||||||||||||||
 | |  |  |  | |  | | | | | |  | | | |  | | | | | | | | |
 | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:34 | — | — | — | — | — | — | — | 6:32 | — | — | — | — | — | — | — | 6:32 | — | — |
mm | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 27 | 26 | 26 | 26 | 28 | 28 | 27 | 26 | 25 | 25 | 24 | 25 | 27 | 27 | 27 | 26 | 25 |
Feels °C | 32 | 32 | 32 | 32 | 32 | 31 | 32 | 31 | 30 | 30 | 30 | 32 | 32 | 29 | 28 | 27 | 26 | 25 | 26 | 29 | 30 | 29 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | SW 8 | SSW 8 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 |
| kJ | 145 | 85 | 277 | 269 | 207 | 187 | 181 | 135 | 133 | 133 | 131 | 131 | 95 | 92 | 86 | 138 | 175 | 173 | 173 | 171 | 156 | 150 | 148 | 148 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 8 | SSW 8 | SSW 7 | SSW 7 | SSW 7 | SW 7 | SSW 7 | SSW 7 | SW 16 | SW 16 | SW 17 | SW 18 | SW 18 | S 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SW 9 | SSW 12 | SSW 12 | SSW 11 |
| kJ | 289 | 285 | 64 | 50 | 43 | 31 | 29 | 24 | 16 | 16 | 129 | 132 | 148 | 154 | 150 | 72 | 46 | 45 | 47 | 45 | 20 | 44 | 26 | 25 |
Swell 3 Height (m) Direction Period (s) | NNE 8 | W 7 | W 7 | W 6 | WSW 6 | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | SSW 7 | SW 7 | SE 5 | SE 4 | SE 5 | SW 10 | SSE 6 | SSW 10 | SW 9 | SW 9 | SSW 12 | SW 9 | SW 9 | SW 9 |
| kJ | 7 | 23 | 14 | 12 | 12 | 36 | 33 | 31 | 21 | 19 | 9 | 12 | 4 | 3 | 3 | 15 | 14 | 37 | 21 | 21 | 26 | 21 | 12 | 12 |
Wind waves Height (m) Direction Period (s) | — | — | — | E 5 | E 5 | E 5 | WNW 6 | E 6 | E 5 | E 5 | E 12 | E 5 | E 5 | E 5 | E 7 | E 7 | NNE 8 | NNE 3 | E 11 | E 4 | — | E 11 | ESE 4 | ESE 5 |
| kJ | — | — | — | 20 | 16 | 18 | 6 | 48 | 67 | 67 | 336 | 74 | 64 | 53 | 91 | 76 | 6 | 1 | 295 | 19 | — | 231 | 21 | 28 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 4 | 4 | 4 | 14 | 14 | 14 | 4 | 4 | 4 | 4 | 4 | 4 | 12 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
Best forecast wave conditions in Maui | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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