Surf Forecasts:
How big are the waves at Grandma's today (09 Aug):
- Morning surf: Morning surf (09 Aug, local time) - 1.5ft (0.4m), 17s period with SW swell.
- Afternoon surf: Afternoon surf (09 Aug, local time) - 1.5ft (0.4m), 17s period with SSW swell.
- Evening surf: Evening surf (09 Aug, local time) - 1.5ft (0.4m), 16s period with SSW swell.
The current surf forecast for Grandma's at 7AM is: 0.4m 17s primary swell from a South-southwest direction and 0.5m 13s secondary swell from a South-southwest direction (forecast issued at 01:00am August 09). An open ocean swell of 1.3m 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 (09 Aug) | 1.5ft (0.4m) | 17s |
| Afternoon (09 Aug) | 1.5ft (0.4m) | 17s |
| Evening (09 Aug) | 1.5ft (0.4m) | 16s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Sun afternoon. Warm (max 29°C on Tue afternoon, min 24°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 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 18 | SSW 17 | SSW 17 | SW 16 | SSW 18 | SSW 17 | SSW 16 | S 16 | S 16 | S 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | S 20 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 174 | 170 | 111 | 69 | 102 | 97 | 87 | 131 | 131 | 129 | 138 | 128 | 234 | 234 | 179 | 179 | 186 | 128 | 121 | 218 | 215 | 210 | 201 | 195 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | cross | cross-off | cross-off | off | cross-off | cross-off | cross-off | glassy | glassy | cross-off | off | off | off | off | off | cross-off | glassy | cross-off | cross-off | off | off |
High Tide | 1:05AM0.28m | 1:59PM0.86m | 2:03AM0.31m | 2:46PM0.88m | 2:54AM0.34m | 3:29PM0.87m | ||||||||||||||||||
Low Tide | 6:15AM-0.01m | 9:11PM0.10m | 7:13AM-0.02m | 9:46PM0.08m | 8:06AM-0.02m | 10:18PM0.06m | ||||||||||||||||||
 | |  |  | |  |  | | | | | |  | | | | | | | | | | | | |
 | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:58 | — | — |
mm | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 26 | 28 | 27 | 27 | 26 | 26 | 25 | 25 | 26 | 28 | 28 | 28 | 26 | 26 | 25 | 25 | 26 | 28 | 29 | 27 | 25 | 25 |
Feels °C | 27 | 28 | 30 | 31 | 30 | 29 | 28 | 28 | 28 | 27 | 29 | 32 | 30 | 29 | 27 | 27 | 27 | 27 | 28 | 31 | 31 | 27 | 25 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SSW 17 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | S 16 | S 16 | S 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
| kJ | 174 | 170 | 98 | 67 | 64 | 59 | 57 | 131 | 131 | 129 | 138 | 128 | 234 | 234 | 179 | 179 | 186 | 128 | 121 | 218 | 215 | 210 | 201 | 195 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 17 | SW 16 | SSW 18 | SSW 17 | SSW 16 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SE 8 | SSE 9 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | ESE 5 | SSW 21 | SSW 21 | SSW 20 | S 20 |
| kJ | 68 | 98 | 111 | 69 | 102 | 97 | 87 | 57 | 57 | 56 | 56 | 47 | 10 | 9 | 23 | 23 | 23 | 24 | 43 | 2 | 44 | 86 | 77 | 194 |
Swell 3 Height (m) Direction Period (s) | SE 6 | SE 7 | SE 6 | SE 6 | SW 16 | SW 16 | SW 16 | NNE 4 | SW 16 | SE 5 | SE 5 | SE 8 | W 10 | W 10 | SE 5 | SE 6 | ESE 6 | ESE 5 | ESE 5 | NNE 5 | N 8 | W 10 | W 10 | ESE 6 |
| kJ | 11 | 11 | 8 | 9 | 67 | 41 | 40 | 2 | 64 | 7 | 4 | 10 | 9 | 8 | 4 | 5 | 7 | 3 | 2 | 3 | 4 | 8 | 8 | 7 |
Wind waves Height (m) Direction Period (s) | E 6 | E 6 | E 6 | E 8 | N 5 | N 4 | N 3 | E 6 | E 8 | E 6 | E 8 | E 8 | E 8 | E 8 | E 8 | E 6 | E 6 | E 8 | E 8 | E 8 | E 8 | NNE 6 | NNE 6 | E 6 |
| kJ | 153 | 128 | 116 | 314 | 5 | 6 | 5 | 151 | 257 | 136 | 219 | 182 | 182 | 131 | 181 | 108 | 105 | 186 | 186 | 186 | 160 | 6 | 7 | 110 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 12 | 12 | 4 | 4 | 4 | 4 | 4 | 4 | 12 | 12 | 12 | 4 |
Best forecast wave conditions in Maui | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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