Surf Forecasts:
How big are the waves at Grandma's today (10 Aug):
- Morning surf: Morning surf (10 Aug, local time) - 1.5ft (0.5m), 15s period with SSW swell.
- Afternoon surf: Afternoon surf (10 Aug, local time) - 2.5ft (0.7m), 15s period with SSW swell.
- Evening surf: Evening surf (10 Aug, local time) - 2ft (0.6m), 15s period with SSW swell.
The current surf forecast for Grandma's at 3AM is: 0.5m 16s primary swell from a South direction and 0.4m 12s secondary swell from a South-southwest direction (forecast issued at 07:00pm August 09). An open ocean swell of 1.5m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Aug) | 1.5ft (0.5m) | 15s |
| Afternoon (10 Aug) | 2.5ft (0.7m) | 15s |
| Evening (10 Aug) | 2ft (0.6m) | 15s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Mon morning, min 24°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sun 9 | Monday 10 | Tuesday 11 | |||||||||||||||||
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 17 | SSW 16 | S 16 | S 16 | S 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | S 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | S 20 |
Wave Graph  | |||||||||||||||||||
 kJ | 97 | 87 | 131 | 131 | 129 | 138 | 128 | 234 | 234 | 179 | 176 | 186 | 116 | 121 | 218 | 215 | 269 | 201 | 195 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | off | off | off | off | off | off | glassy | cross-off | off | cross-off | off |
High Tide | 2:03AM0.31m | 2:46PM0.88m | 2:54AM0.34m | 3:29PM0.87m | |||||||||||||||
Low Tide | 9:11PM0.10m | 7:13AM-0.02m | 9:46PM0.08m | 8:06AM-0.02m | 10:18PM0.06m | ||||||||||||||
 |  | | | |  |  | | |  | | | | | | | | | | |
 | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | 6:59 | — | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:58 | — | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 26 | 26 | 25 | 25 | 27 | 28 | 28 | 28 | 27 | 26 | 25 | 25 | 26 | 28 | 28 | 28 | 25 | 25 |
Feels °C | 31 | 28 | 28 | 28 | 28 | 30 | 31 | 30 | 29 | 29 | 28 | 27 | 27 | 28 | 32 | 30 | 29 | 25 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 12 | S 16 | S 16 | S 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | S 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
| kJ | 59 | 57 | 131 | 131 | 129 | 138 | 128 | 234 | 234 | 179 | 176 | 186 | 116 | 121 | 218 | 215 | 269 | 201 | 195 |
Swell 2 Height (m) Direction Period (s) | SSW 17 | SSW 16 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSE 9 | SSE 9 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | W 10 | N 8 | SSW 21 | SSW 20 | S 20 |
| kJ | 97 | 87 | 57 | 57 | 56 | 56 | 47 | 17 | 17 | 23 | 23 | 23 | 24 | 43 | 8 | 10 | 86 | 77 | 194 |
Swell 3 Height (m) Direction Period (s) | NNE 5 | NNE 6 | SW 16 | SW 16 | SE 6 | SE 5 | SSE 10 | W 10 | W 10 | SSE 9 | ESE 5 | ESE 6 | ESE 6 | ESE 5 | N 8 | SSW 21 | N 8 | N 7 | SE 5 |
| kJ | 6 | 6 | 64 | 64 | 9 | 4 | 18 | 9 | 8 | 16 | 2 | 6 | 3 | 2 | 5 | 44 | 10 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | E 8 | E 6 | E 6 | E 6 | E 6 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 6 | E 8 | E 5 | E 8 | — | E 8 | E 5 | E 6 |
| kJ | 282 | 222 | 184 | 162 | 160 | 187 | 246 | 182 | 182 | 207 | 169 | 101 | 138 | 40 | 159 | — | 135 | 100 | 88 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 13 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 13 | 12 | 12 | 4 |
Best forecast wave conditions in Maui | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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