Surf Forecasts:
How big are the waves at Grandma's today (01 Oct):
- Morning surf: Morning surf (01 Oct, local time) - 1.5ft (0.4m), 13s period with SSW swell.
- Afternoon surf: Afternoon surf (01 Oct, local time) - 1.5ft (0.4m), 13s period with SW swell.
- Evening surf: Evening surf (01 Oct, local time) - 1.5ft (0.4m), 15s period with SSW swell.
The current surf forecast for Grandma's at 4AM is: 0.4m 14s primary swell from a Southwest direction and 0.5m 5s secondary swell from a South direction (forecast issued at 07:00pm September 30). An open ocean swell of 0.8m 8s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 Oct) | 1.5ft (0.4m) | 13s |
| Afternoon (01 Oct) | 1.5ft (0.4m) | 13s |
| Evening (01 Oct) | 1.5ft (0.4m) | 15s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Thu morning, min 24°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Wed 30 | Thursday 1 | Friday 2 | |||||||||||||||||
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 | W 10 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | S 14 | SSW 15 | S 15 | SSW 12 | S 14 | S 14 | S 14 | S 13 | SSW 13 | SSW 12 | SSW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 103 | 82 | 102 | 53 | 50 | 60 | 60 | 43 | 96 | 73 | 38 | 49 | 101 | 93 | 93 | 87 | 133 | 121 | 119 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | off | glassy | glassy | cross | cross-on | glassy | glassy | glassy | glassy | off | glassy | cross | cross-on | glassy | glassy | cross-off |
High Tide | 6:25PM0.33m | 7:55AM0.76m | 7:43PM0.28m | 9:05AM0.75m | 9:29PM0.27m | ||||||||||||||
Low Tide | 00:10AM0.05m | 3:07PM0.20m | 1:04AM0.08m | 4:45PM0.19m | |||||||||||||||
 |  |  | | | |  | | | | | | | | | |  | | | |
 | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — |
 | 6:15 | — | — | — | — | — | — | — | 6:14 | — | — | — | — | — | — | — | 6:13 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 27 | 27 | 26 | 26 | 26 | 28 | 27 | 27 | 26 | 26 | 25 | 25 | 26 | 26 | 27 | 26 | 26 | 25 |
Feels °C | 30 | 30 | 31 | 29 | 30 | 29 | 30 | 30 | 31 | 30 | 30 | 29 | 28 | 29 | 28 | 30 | 30 | 30 | 27 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | W 10 | S 5 | S 5 | S 5 | S 5 | W 8 | S 14 | W 8 | S 5 | W 8 | S 14 | S 14 | S 14 | S 13 | SSW 13 | SSW 12 | SSW 12 |
| kJ | 96 | 74 | 46 | 13 | 14 | 13 | 14 | 22 | 96 | 34 | 11 | 31 | 101 | 93 | 93 | 87 | 133 | 121 | 119 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SSW 14 | SW 14 | W 9 | SW 14 | SSW 13 | SW 14 | SW 13 | W 9 | SSW 15 | W 8 | SSE 5 | WSW 8 | SE 5 | WSW 7 | W 7 | S 6 | S 6 | W 8 |
| kJ | 103 | 82 | 102 | 25 | 50 | 60 | 50 | 43 | 24 | 73 | 21 | 8 | 19 | 11 | 17 | 16 | 15 | 9 | 21 |
Swell 3 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 10 | SW 14 | W 8 | SW 14 | SSW 13 | SSW 13 | SW 14 | SSW 12 | S 15 | SSW 12 | SW 12 | WSW 7 | NNW 10 | NNW 10 | W 8 | W 8 | S 5 |
| kJ | 42 | 42 | 10 | 53 | 22 | 49 | 60 | 35 | 29 | 29 | 38 | 49 | 38 | 18 | 19 | 18 | 18 | 20 | 9 |
Wind waves Height (m) Direction Period (s) | S 6 | S 6 | S 5 | E 14 | E 8 | E 5 | ESE 5 | S 5 | S 5 | S 5 | ESE 5 | ESE 5 | ESE 5 | ESE 5 | SSE 5 | S 4 | E 6 | E 6 | E 6 |
| kJ | 25 | 23 | 13 | 294 | 91 | 37 | 74 | 18 | 24 | 22 | 25 | 33 | 91 | 91 | 9 | 10 | 64 | 43 | 43 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 20 | 19 | 4 | 12 | 12 | 4 | 14 | 4 | 4 | 4 | 12 | 4 | 4 | 4 | 22 | 14 | 4 | 4 | 4 |
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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