Surf Forecasts:
How big are the waves at Grandma's today (02 Sep):
- Morning surf: Morning surf (02 Sep, local time) - 2.5ft (0.8m), 16s period with SSW swell.
- Afternoon surf: Afternoon surf (02 Sep, local time) - 2.5ft (0.8m), 16s period with S swell.
- Evening surf: Evening surf (02 Sep, local time) - 2.5ft (0.8m), 15s period with S swell.
The current surf forecast for Grandma's at 1AM is: 0.7m 17s primary swell from a South-southwest direction (forecast issued at 07:00pm September 01). An open ocean swell of 0.4m 7s is not directed at the surf break, a second open ocean swell of 1.2m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (02 Sep) | 2.5ft (0.8m) | 16s |
| Afternoon (02 Sep) | 2.5ft (0.8m) | 16s |
| Evening (02 Sep) | 2.5ft (0.8m) | 15s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Wed afternoon, min 24°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Tue 1 | Wednesday 2 | Thursday 3 | |||||||||||||||||
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 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | S 16 | S 16 | S 16 | S 15 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 13 | S 13 | S 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 249 | 246 | 307 | 363 | 443 | 350 | 334 | 322 | 310 | 291 | 215 | 212 | 209 | 209 | 206 | 153 | 340 | 380 | 392 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | off | off | off | off | off | off | off | off |
High Tide | 6:34PM0.42m | 8:23AM0.67m | 7:26PM0.35m | 9:35AM0.70m | 8:58PM0.29m | ||||||||||||||
Low Tide | 00:50AM0.05m | 2:50PM0.25m | 1:38AM0.06m | 4:44PM0.24m | |||||||||||||||
 |  |  | | |  | | | | | | | | | | | | | | |
 | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | 6:42 | — | — | — | — | — | — | — | 6:40 | — | — | — | — | — | — | — | 6:39 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 26 | 26 | 26 | 26 | 26 | 28 | 29 | 28 | 26 | 25 | 25 | 25 | 26 | 28 | 29 | 27 | 25 | 25 |
Feels °C | 29 | 27 | 28 | 30 | 30 | 29 | 30 | 31 | 29 | 26 | 25 | 26 | 26 | 26 | 30 | 30 | 26 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | S 16 | S 16 | S 16 | S 15 | S 15 | S 15 | S 15 | S 15 | S 14 | SSE 13 | S 13 | S 13 | S 13 |
| kJ | 249 | 246 | 307 | 363 | 443 | 350 | 334 | 322 | 310 | 291 | 215 | 212 | 209 | 209 | 206 | 131 | 340 | 380 | 392 |
Swell 2 Height (m) Direction Period (s) | NNE 6 | NNE 6 | S 11 | NNE 7 | NNE 7 | SE 6 | SE 6 | SE 6 | SE 7 | S 11 | S 11 | S 11 | S 10 | NNE 7 | SSE 12 | S 14 | ESE 6 | N 6 | ESE 6 |
| kJ | 13 | 13 | 41 | 15 | 16 | 9 | 10 | 10 | 11 | 20 | 21 | 21 | 19 | 9 | 52 | 153 | 17 | 3 | 12 |
Swell 3 Height (m) Direction Period (s) | S 12 | S 12 | NNE 7 | S 10 | SE 6 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | N 7 | N 6 | N 6 | SSE 14 | SSE 13 | ESE 6 | SE 7 | N 6 | W 9 | N 6 |
| kJ | 49 | 44 | 15 | 34 | 9 | 10 | 10 | 10 | 9 | 8 | 3 | 3 | 21 | 16 | 16 | 21 | 3 | 2 | 6 |
Wind waves Height (m) Direction Period (s) | E 8 | E 6 | E 5 | E 6 | E 6 | E 6 | E 7 | E 7 | E 7 | SE 7 | ESE 7 | ESE 6 | ESE 6 | SE 6 | E 6 | E 7 | E 7 | E 6 | E 6 |
| kJ | 277 | 157 | 131 | 89 | 244 | 290 | 254 | 430 | 469 | 11 | 17 | 12 | 12 | 10 | 322 | 403 | 295 | 21 | 219 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 12 | 12 | 12 | 4 | 4 | 4 | 4 | 4 | 12 | 12 | 12 | 12 | 12 | 12 | 4 | 4 | 12 | 12 | 12 |
Best forecast wave conditions in Maui | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
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