Surf Forecasts:
How big are the waves at Grandma's today (30 Aug):
- Afternoon surf: Afternoon surf (30 Aug, local time) - 1.5ft (0.4m), 16s period with SSW swell.
- Evening surf: Evening surf (30 Aug, local time) - 1.5ft (0.4m), 15s period with SSW swell.
The current surf forecast for Grandma's at 11PM is: 0.4m 15s primary swell from a South-southwest direction and 0.5m 11s secondary swell from a South direction (forecast issued at 07:00pm August 30). An open ocean swell of 1.0m 5s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Aug) | - | - |
| Afternoon (30 Aug) | 1.5ft (0.4m) | 16s |
| Evening (30 Aug) | 1.5ft (0.4m) | 15s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Wed afternoon, min 25°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Sun 30 | Monday 31 | Tuesday 1 | |||||||||||||||||
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 15 | SW 15 | SSW 15 | SW 15 | SSW 15 | SW 15 | SSW 15 | SSW 14 | SSW 19 | SSW 19 | SSW 19 | SSW 19 | SSW 19 | SSW 18 | S 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 |
Wave Graph  | |||||||||||||||||||
 kJ | 91 | 68 | 89 | 58 | 158 | 109 | 86 | 82 | 115 | 124 | 125 | 148 | 205 | 251 | 311 | 249 | 249 | 246 | 311 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | off | off | off | off | off | off | off | off | cross-off | cross-off | off | off | cross-off | off | off | off |
High Tide | 5:24PM0.57m | 6:23AM0.61m | 5:56PM0.49m | 7:18AM0.64m | 6:34PM0.42m | ||||||||||||||
Low Tide | 11:37PM0.05m | 12:15PM0.19m | 00:11AM0.04m | 1:23PM0.23m | |||||||||||||||
 |  | |  | | | |  | | | | | | | | | | | | |
 | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | 6:43 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:42 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 26 | 26 | 25 | 25 | 26 | 28 | 28 | 27 | 25 | 25 | 25 | 25 | 26 | 28 | 28 | 28 | 26 | 25 |
Feels °C | 29 | 27 | 27 | 26 | 25 | 25 | 29 | 30 | 27 | 24 | 25 | 26 | 26 | 26 | 29 | 28 | 28 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | S 11 | S 11 | SSW 15 | S 11 | S 11 | S 11 | SSW 19 | S 10 | S 10 | SSW 19 | SSW 19 | SSW 18 | S 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 |
| kJ | 69 | 68 | 61 | 58 | 158 | 58 | 57 | 56 | 115 | 35 | 33 | 148 | 205 | 251 | 311 | 249 | 249 | 246 | 311 |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SW 15 | SSW 15 | SW 15 | S 11 | SW 15 | SSW 15 | SSW 14 | S 11 | SSW 19 | SSW 19 | S 10 | S 10 | S 10 | NNE 7 | S 13 | NNE 7 | NNE 7 | S 11 |
| kJ | 91 | 58 | 89 | 56 | 58 | 109 | 86 | 82 | 35 | 124 | 125 | 32 | 31 | 30 | 16 | 50 | 15 | 15 | 41 |
Swell 3 Height (m) Direction Period (s) | NNE 7 | NNE 7 | NNE 7 | SSW 16 | NNE 7 | SE 5 | NNE 8 | SSW 18 | NNE 7 | SSW 14 | SW 14 | SW 14 | NNE 7 | NNE 7 | SW 14 | NNE 7 | S 12 | S 12 | NNE 7 |
| kJ | 9 | 9 | 9 | 53 | 10 | 5 | 11 | 64 | 18 | 38 | 49 | 54 | 10 | 17 | 32 | 16 | 49 | 44 | 9 |
Wind waves Height (m) Direction Period (s) | E 6 | E 5 | E 5 | E 5 | E 5 | NNE 8 | E 6 | E 6 | E 6 | E 6 | E 6 | E 5 | E 8 | E 8 | E 8 | E 5 | E 6 | E 6 | E 6 |
| kJ | 136 | 99 | 54 | 65 | 65 | 19 | 92 | 141 | 141 | 89 | 86 | 43 | 205 | 239 | 277 | 143 | 174 | 183 | 108 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 12 | 12 | 4 | 12 | 12 | 12 | 4 | 4 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
Best forecast wave conditions in Maui | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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