Surf Forecasts:
How big are the waves at Grandma's today (24 Sep):
- Morning surf: Morning surf (24 Sep, local time) - 2ft (0.6m), 16s period with SSW swell.
- Afternoon surf: Afternoon surf (24 Sep, local time) - 2ft (0.6m), 17s period with SSW swell.
- Evening surf: Evening surf (24 Sep, local time) - 2ft (0.6m), 17s period with SW swell.
The current surf forecast for Grandma's at 5AM is: 0.5m 16s primary swell from a Southwest direction and 0.4m 12s secondary swell from a South direction (forecast issued at 01:00am September 24). An open ocean swell of 1.8m 7s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 Sep) | 2ft (0.6m) | 16s |
| Afternoon (24 Sep) | 2ft (0.6m) | 17s |
| Evening (24 Sep) | 2ft (0.6m) | 17s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Sat afternoon, min 25°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 24 | Friday 25 | Saturday 26 | ||||||||||||||||||||||
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) | SW 16 | SW 16 | SSW 16 | SSW 15 | SSW 17 | SSW 15 | SW 17 | SSW 15 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 16 | SSW 17 | SW 17 | SW 17 | SSW 17 | SW 16 | SSW 16 | SSW 16 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 121 | 121 | 164 | 158 | 197 | 146 | 235 | 144 | 295 | 268 | 201 | 255 | 166 | 162 | 158 | 204 | 171 | 258 | 302 | 309 | 261 | 264 | 223 | 220 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off |
High Tide | 2:37AM0.51m | 2:44PM0.68m | 3:13AM0.57m | 3:17PM0.64m | 3:50AM0.63m | 3:49PM0.58m | ||||||||||||||||||
Low Tide | 8:05AM0.10m | 8:56PM0.07m | 8:53AM0.10m | 9:20PM0.05m | 9:40AM0.11m | 9:47PM0.03m | ||||||||||||||||||
 | |  | | | |  | | | | |  | | | | | | | | | |  |  | | |
 | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:19 | — | — | — | — | — | — | — | 6:17 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 28 | 28 | 28 | 26 | 26 | 26 | 25 | 25 | 26 | 26 | 27 | 26 | 25 | 25 | 25 | 26 | 28 | 29 | 27 | 26 | 26 |
Feels °C | 28 | 28 | 27 | 28 | 29 | 28 | 26 | 27 | 28 | 26 | 24 | 26 | 26 | 28 | 27 | 25 | 26 | 25 | 27 | 29 | 29 | 27 | 25 | 26 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SSW 16 | SSW 15 | SSW 17 | SSW 15 | SW 17 | SSW 15 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 16 | SSW 17 | SW 17 | SW 17 | SSW 17 | SW 16 | SSW 16 | SSW 16 |
| kJ | 121 | 121 | 164 | 158 | 197 | 146 | 235 | 144 | 295 | 268 | 201 | 255 | 166 | 162 | 158 | 204 | 171 | 258 | 302 | 309 | 261 | 264 | 223 | 220 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 12 | ESE 7 | S 12 | S 12 | ESE 7 | S 12 | ESE 7 | ESE 7 | ESE 7 | SE 8 | SE 8 | ESE 8 | S 11 | S 10 | SSE 10 | ESE 8 | ESE 8 | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SSE 10 |
| kJ | 75 | 46 | 18 | 45 | 44 | 18 | 25 | 18 | 19 | 20 | 15 | 16 | 23 | 57 | 53 | 34 | 45 | 46 | 32 | 37 | 45 | 44 | 46 | 33 |
Swell 3 Height (m) Direction Period (s) | SE 8 | SE 8 | S 12 | SE 8 | SE 8 | S 12 | NNW 10 | SW 18 | S 11 | S 11 | S 11 | S 11 | SW 12 | SE 8 | SE 8 | SW 12 | SSE 10 | SSE 10 | SSE 10 | NE 7 | SW 15 | SSE 10 | SSE 10 | NNE 7 |
| kJ | 18 | 15 | 46 | 16 | 16 | 44 | 19 | 80 | 23 | 21 | 21 | 37 | 39 | 29 | 30 | 23 | 33 | 33 | 33 | 11 | 54 | 21 | 20 | 9 |
Wind waves Height (m) Direction Period (s) | E 9 | E 7 | E 7 | E 7 | E 7 | E 7 | ESE 7 | NNE 5 | E 7 | E 7 | NNE 6 | E 7 | E 8 | E 8 | E 8 | ESE 8 | ENE 3 | E 8 | ENE 3 | E 8 | E 8 | ENE 3 | ENE 3 | ESE 8 |
| kJ | 607 | 289 | 289 | 168 | 274 | 403 | 26 | 3 | 341 | 399 | 6 | 392 | 588 | 491 | 657 | 67 | 2 | 805 | 1 | 871 | 805 | 1 | 3 | 70 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 14 | 12 | 13 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 |
Best forecast wave conditions in Maui | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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