Surf Forecasts:
How big are the waves at Grandma's today (23 Oct):
- Morning surf: Morning surf (23 Oct, local time) - 1.5ft (0.4m), 13s period with SW swell.
- Afternoon surf: Afternoon surf (23 Oct, local time) - 1.5ft (0.4m), 13s period with SW swell.
- Evening surf: Evening surf (23 Oct, local time) - 1.5ft (0.5m), 16s period with SSW swell.
The current surf forecast for Grandma's at 1AM is: 0.4m 13s primary swell from a Southwest direction and 0.3m 12s secondary swell from a Northwest direction (forecast issued at 07:00pm October 22). An open ocean swell of 0.9m 7s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Oct) | 1.5ft (0.4m) | 13s |
| Afternoon (23 Oct) | 1.5ft (0.4m) | 13s |
| Evening (23 Oct) | 1.5ft (0.5m) | 16s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Thu night. Warm (max 26°C on Fri morning, min 23°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Thu 22 | Friday 23 | Saturday 24 | |||||||||||||||||
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 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SSW 15 | SSW 16 | SSW 16 | SSW 16 | SSW 17 | SSW 17 | SSW 14 | SSW 14 | SSW 14 | SSW 15 | SSW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 47 | 46 | 45 | 45 | 44 | 44 | 44 | 45 | 77 | 137 | 142 | 90 | 95 | 101 | 143 | 204 | 218 | 184 | 198 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | glassy | glassy | glassy | off | glassy | off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | off | cross-off |
High Tide | 2:13AM0.61m | 2:02PM0.55m | 2:51AM0.69m | 2:40PM0.50m | |||||||||||||||
Low Tide | 7:34PM0.05m | 7:59AM0.15m | 8:00PM0.02m | 8:53AM0.13m | 8:28PM-0.00m | ||||||||||||||
 |  |  |  | |  |  | | | | | | | | | | |  | | |
 | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — |
 | 5:57 | — | — | — | — | — | — | — | 5:55 | — | — | — | — | — | — | — | 5:54 | — | — |
mm | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 25 | 25 | 24 | 25 | 26 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 26 | 26 | 25 | 24 | 24 |
Feels °C | 29 | 28 | 29 | 28 | 27 | 28 | 28 | 28 | 27 | 26 | 26 | 26 | 26 | 25 | 28 | 27 | 25 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SSW 15 | SSW 16 | SSW 16 | SSW 16 | SSW 17 | SSW 17 | SSW 14 | SSW 14 | SSW 14 | SSW 15 | SSW 16 |
| kJ | 47 | 46 | 45 | 45 | 44 | 44 | 44 | 42 | 77 | 137 | 142 | 90 | 95 | 101 | 143 | 204 | 218 | 184 | 198 |
Swell 2 Height (m) Direction Period (s) | NNE 8 | NNE 8 | NNE 8 | NW 12 | NW 12 | NW 12 | NW 11 | SSW 15 | SW 13 | NW 11 | NW 11 | SSW 14 | SSW 13 | SSW 13 | SSW 18 | NW 10 | NNW 14 | S 12 | NNW 13 |
| kJ | 13 | 13 | 6 | 22 | 22 | 22 | 20 | 45 | 42 | 19 | 19 | 36 | 34 | 34 | 63 | 16 | 37 | 73 | 92 |
Swell 3 Height (m) Direction Period (s) | S 11 | NW 11 | NW 12 | NNE 8 | SSW 16 | SSW 17 | S 10 | NW 11 | NW 11 | SSW 12 | SSW 12 | SW 12 | SW 12 | NW 10 | NW 10 | NNW 15 | NW 10 | NNW 13 | S 12 |
| kJ | 9 | 19 | 22 | 6 | 26 | 29 | 8 | 19 | 19 | 14 | 14 | 24 | 24 | 17 | 17 | 21 | 16 | 59 | 73 |
Wind waves Height (m) Direction Period (s) | E 8 | E 7 | E 7 | E 7 | E 5 | — | — | — | NNE 3 | NNE 4 | NNE 4 | NNE 4 | NNE 10 | NNE 2 | NNE 3 | NNE 3 | NNE 3 | NNE 4 | NNE 4 |
| kJ | 89 | 107 | 130 | 86 | 21 | — | — | — | 6 | 5 | 2 | 2 | 20 | 1 | 2 | 2 | 5 | 16 | 13 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 13 | 12 | 12 | 12 | 4 | 12 | 15 | 4 | 12 | 12 | 4 | 4 | 4 | 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)
Ocean Swells (m)- Wind Speed (km/h)
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