Surf Forecasts:
How big are the waves at Grandma's today (07 Sep):
- Morning surf: Morning surf (07 Sep, local time) - 3ft (0.9m), 16s period with SSW swell.
- Afternoon surf: Afternoon surf (07 Sep, local time) - 4.5ft (1.3m), 13s period with SW swell.
- Evening surf: Evening surf (07 Sep, local time) - 7.5ft (2.3m), 14s period with SW swell.
The current surf forecast for Grandma's at 5AM is: 1.3m 12s primary swell from a Southwest direction and 0.7m 17s secondary swell from a South-southwest direction (forecast issued at 01:00am September 07). An open ocean swell of 1.5m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (07 Sep) | 3ft (0.9m) | 16s |
| Afternoon (07 Sep) | 4.5ft (1.3m) | 13s |
| Evening (07 Sep) | 7.5ft (2.3m) | 14s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 9mm), mostly falling on Wed afternoon. Warm (max 29°C on Mon afternoon, min 26°C on Wed night). Winds decreasing (fresh winds from the S on Tue morning, calm by Wed morning). | ||||||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | ||||||||||||||||||||||
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 14 | SW 12 | SSW 16 | SSW 17 | SW 13 | SW 14 | SW 14 | SW 14 | SW 13 | SW 12 | SSW 11 | SW 10 | SSW 9 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 586 | 502 | 390 | 394 | 473 | 970 | 1736 | 3216 | 2653 | 1880 | 1301 | 947 | 459 | 371 | 297 | 293 | 289 | 285 | 277 | 269 | 189 | 187 | 181 | 178 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | glassy | cross-on | glassy | glassy | glassy | glassy |
High Tide | 1:07AM0.35m | 1:36PM0.82m | 1:58AM0.40m | 2:20PM0.81m | 2:43AM0.46m | 3:01PM0.78m | ||||||||||||||||||
Low Tide | 6:10AM0.06m | 8:32PM0.09m | 7:10AM0.05m | 9:02PM0.08m | 8:05AM0.05m | 9:29PM0.06m | ||||||||||||||||||
 |  |  | | | |  | | |  |  | |  | | | | | | | | | | | | |
 | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:36 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:34 | — | — |
mm | 1 | — | — | — | — | — | — | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | 1 | 2 | 2 | 1 | — |
Temp °C | 26 | 26 | 27 | 28 | 29 | 29 | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 |
Feels °C | 29 | 29 | 31 | 31 | 31 | 30 | 30 | 29 | 27 | 27 | 27 | 28 | 30 | 30 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 12 | SW 12 | SW 11 | SW 13 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 15 | SSW 15 | SSW 15 | W 10 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 |
| kJ | 586 | 502 | 309 | 273 | 473 | 970 | 1736 | 3216 | 2653 | 392 | 387 | 381 | 196 | 290 | 207 | 161 | 116 | 91 | 277 | 269 | 189 | 187 | 181 | 178 |
Swell 2 Height (m) Direction Period (s) | SSW 18 | SSW 17 | SSW 16 | SSW 17 | SSW 17 | S 8 | S 8 | SSW 16 | SSW 15 | N 12 | ENE 11 | NNW 12 | SSW 15 | W 10 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 8 | SSW 8 | SSW 7 | SSW 7 | SSW 7 | SSW 7 |
| kJ | 352 | 290 | 390 | 394 | 394 | 137 | 157 | 424 | 512 | 12 | 12 | 14 | 376 | 194 | 297 | 293 | 289 | 285 | 64 | 44 | 43 | 43 | 29 | 19 |
Swell 3 Height (m) Direction Period (s) | S 7 | S 7 | S 7 | S 7 | S 8 | SSW 16 | SSW 15 | N 13 | N 13 | E 11 | NNW 12 | ENE 11 | ENE 11 | SSW 14 | W 9 | W 9 | W 8 | W 7 | WNW 7 | W 6 | W 6 | SW 18 | SW 17 | SW 17 |
| kJ | 27 | 54 | 38 | 40 | 61 | 362 | 408 | 14 | 13 | 154 | 14 | 12 | 12 | 371 | 113 | 76 | 48 | 27 | 16 | 13 | 7 | 48 | 45 | 44 |
Wind waves Height (m) Direction Period (s) | E 7 | E 6 | E 6 | E 7 | E 6 | E 6 | SE 8 | — | — | SW 12 | SSW 11 | SW 10 | SSW 9 | — | — | — | — | — | — | E 6 | E 6 | ESE 5 | E 5 | E 6 |
| kJ | 342 | 170 | 324 | 427 | 354 | 302 | 503 | — | — | 1880 | 1301 | 947 | 459 | — | — | — | — | — | — | 17 | 49 | 45 | 37 | 116 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 12 | 4 | 12 | 111 | 22 | 22 | 22 | 17 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 13 | 4 | 4 | 4 | 14 | 4 | 4 | 4 | 4 |
Best forecast wave conditions in Maui | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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