Surf Forecasts:
How big are the waves at Grandma's today (29 Jul):
- Morning surf: Morning surf (29 Jul, local time) - 2ft (0.6m), 14s period with SSW swell.
- Afternoon surf: Afternoon surf (29 Jul, local time) - 1.5ft (0.5m), 13s period with S swell.
- Evening surf: Evening surf (29 Jul, local time) - 2.5ft (0.7m), 13s period with SSW swell.
The current surf forecast for Grandma's at 5PM is: 0.6m 13s primary swell from a South direction (forecast issued at 01:00pm July 29). An open ocean swell of 0.4m 8s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Jul) | 2ft (0.6m) | 14s |
| Afternoon (29 Jul) | 1.5ft (0.5m) | 13s |
| Evening (29 Jul) | 2.5ft (0.7m) | 13s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Fri morning, min 24°C on Fri night). Wind will be generally light. | |||||||||||||||||||||
Wed 29 | Thursday 30 | Friday 31 | |||||||||||||||||||
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 | S 13 | S 13 | SSW 13 | SSW 13 | S 14 | S 13 | S 13 | S 14 | S 14 | S 13 | S 13 | S 13 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SSW 15 | SSW 15 | SSW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 145 | 87 | 123 | 178 | 178 | 96 | 121 | 84 | 140 | 181 | 173 | 125 | 125 | 130 | 127 | 127 | 125 | 122 | 158 | 150 | 148 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | cross-on | glassy | glassy | cross-off | off | off | off | off | off | cross-off | off | off |
High Tide | 4:28PM0.78m | 4:39AM0.35m | 4:59PM0.76m | 5:21AM0.37m | 5:29PM0.71m | ||||||||||||||||
Low Tide | 9:07AM0.02m | 11:12PM0.08m | 9:48AM0.04m | 11:39PM0.07m | 10:31AM0.07m | ||||||||||||||||
 | | |  |  | | |  | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — |
 | — | — | 7:05 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:04 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 28 | 28 | 28 | 28 | 27 | 26 | 25 | 26 | 29 | 29 | 28 | 26 | 25 |
Feels °C | 31 | 31 | 31 | 32 | 31 | 30 | 31 | 29 | 30 | 30 | 32 | 32 | 31 | 29 | 27 | 28 | 32 | 31 | 28 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | S 13 | S 13 | SSW 13 | SSW 13 | S 14 | S 13 | S 13 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | SSW 15 | SSW 15 | SSW 15 |
| kJ | 145 | 87 | 123 | 178 | 178 | 96 | 121 | 84 | 140 | 181 | 173 | 125 | 125 | 123 | 121 | 121 | 117 | 78 | 158 | 150 | 148 |
Swell 2 Height (m) Direction Period (s) | NNE 9 | SSW 15 | NNE 8 | N 7 | N 7 | S 12 | S 15 | S 15 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | S 12 | S 12 | SSW 12 |
| kJ | 25 | 76 | 21 | 17 | 15 | 73 | 68 | 68 | 80 | 152 | 152 | 79 | 76 | 130 | 127 | 127 | 125 | 122 | 75 | 73 | 47 |
Swell 3 Height (m) Direction Period (s) | SW 21 | N 8 | S 16 | SSW 19 | SW 19 | N 7 | N 7 | SW 18 | N 6 | N 6 | NNE 6 | N 6 | SE 6 | SE 7 | SE 6 | SE 6 | SE 7 | SE 6 | SE 7 | N 8 | ESE 7 |
| kJ | 17 | 20 | 43 | 37 | 58 | 15 | 8 | 50 | 3 | 7 | 7 | 6 | 11 | 11 | 10 | 10 | 11 | 11 | 11 | 12 | 19 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | E 5 | E 6 | E 8 | E 8 | E 8 | E 8 | — | E 7 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 7 | ESE 7 | NE 3 |
| kJ | — | — | — | — | 21 | 128 | 217 | 256 | 198 | 167 | — | 275 | 233 | 182 | 165 | 182 | 299 | 299 | 236 | 18 | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 14 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 14 | 4 | 4 | 4 | 12 | 4 | 4 | 4 | 4 | 12 | 12 | 12 |
Best forecast wave conditions in Maui | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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