Surf Forecasts:
How big are the waves at Grandma's today (28 Jul):
- Morning surf: Morning surf (28 Jul, local time) - 2ft (0.6m), 14s period with SSW swell.
- Afternoon surf: Afternoon surf (28 Jul, local time) - 2ft (0.6m), 14s period with S swell.
- Evening surf: Evening surf (28 Jul, local time) - 2ft (0.6m), 14s period with SSW swell.
The current surf forecast for Grandma's at 9PM is: 0.6m 14s primary swell from a South-southwest direction (forecast issued at 01:00pm July 28). An open ocean swell of 0.2m 12s is not directed at the surf break, a second open ocean swell of 0.8m 5s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Jul) | 2ft (0.6m) | 14s |
| Afternoon (28 Jul) | 2ft (0.6m) | 14s |
| Evening (28 Jul) | 2ft (0.6m) | 14s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Tue afternoon, min 24°C on Tue night). Wind will be generally light. | |||||||||||||||||||||
Tue 28 | Wednesday 29 | Thursday 30 | |||||||||||||||||||
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 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | S 13 | S 13 | S 13 | SSW 13 | S 14 | S 13 | S 13 | S 14 | SW 18 | SW 18 | S 13 | S 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 143 | 134 | 147 | 147 | 147 | 145 | 143 | 143 | 145 | 87 | 123 | 168 | 178 | 96 | 121 | 84 | 142 | 152 | 152 | 125 | 125 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | off | off | off | cross-off | glassy | glassy | glassy | cross-off | glassy | glassy | glassy | glassy | on | on | glassy | glassy | cross-off |
High Tide | 3:55PM0.80m | 3:59AM0.33m | 4:28PM0.78m | 4:39AM0.35m | 4:59PM0.76m | ||||||||||||||||
Low Tide | 8:27AM0.01m | 10:47PM0.10m | 9:07AM0.02m | 11:12PM0.08m | 9:48AM0.04m | ||||||||||||||||
 | | |  |  | | | | | |  | | | | | | | | | | | |
 | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — |
 | — | — | 7:06 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:05 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 27 | 26 | 25 | 25 | 24 | 25 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 28 | 28 | 28 | 27 | 26 |
Feels °C | 28 | 28 | 27 | 27 | 26 | 27 | 27 | 27 | 31 | 31 | 31 | 29 | 31 | 30 | 30 | 30 | 31 | 30 | 31 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | S 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | S 13 | S 13 | S 13 | SSW 13 | S 14 | S 13 | S 13 | S 14 | S 14 | S 13 | S 13 | S 13 |
| kJ | 143 | 134 | 147 | 147 | 147 | 145 | 143 | 143 | 145 | 87 | 123 | 168 | 178 | 96 | 121 | 84 | 142 | 134 | 128 | 125 | 125 |
Swell 2 Height (m) Direction Period (s) | E 14 | E 13 | ENE 12 | ENE 12 | ENE 11 | ENE 10 | NE 9 | SW 21 | NNE 9 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | SSW 12 | N 7 | S 15 | SW 18 | SW 18 | NNE 6 | SW 18 | SW 17 |
| kJ | 14 | 13 | 14 | 14 | 12 | 10 | 13 | 17 | 26 | 23 | 22 | 21 | 19 | 48 | 17 | 68 | 80 | 152 | 14 | 79 | 76 |
Swell 3 Height (m) Direction Period (s) | S 10 | — | — | S 10 | NE 9 | NE 13 | S 10 | — | SW 21 | SSW 15 | S 16 | SSW 19 | SW 19 | N 7 | S 15 | N 7 | N 7 | SE 6 | SW 18 | NNE 6 | SSE 5 |
| kJ | 2 | — | — | 7 | 3 | 7 | 2 | — | 17 | 76 | 43 | 37 | 58 | 17 | 68 | 9 | 8 | 9 | 152 | 6 | 2 |
Wind waves Height (m) Direction Period (s) | N 3 | NNE 4 | N 4 | N 5 | N 4 | N 6 | N 6 | NNE 9 | — | — | — | — | E 8 | E 6 | E 6 | E 6 | E 6 | ESE 8 | E 8 | E 8 | E 8 |
| kJ | 7 | 27 | 50 | 43 | 15 | 21 | 20 | 27 | — | — | — | — | 165 | 164 | 202 | 132 | 127 | 169 | 173 | 234 | 217 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 12 | 12 | 12 | 12 | 12 | 12 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 14 | 14 | 4 | 4 | 4 |
Best forecast wave conditions in Maui | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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