Surf Forecasts:
How big are the waves at Grandma's today (14 Sep):
- Morning surf: Morning surf (14 Sep, local time) - 1.5ft (0.4m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (14 Sep, local time) - 1.5ft (0.4m), 22s period with SW swell.
- Evening surf: Evening surf (14 Sep, local time) - 1.5ft (0.4m), 22s period with SW swell.
The current surf forecast for Grandma's at 10AM is: 0.4m 14s primary swell from a Southwest direction (forecast issued at 01:00am September 14). An open ocean swell of 0.2m 8s is not directed at the surf break, a second open ocean swell of 0.6m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Sep) | 1.5ft (0.4m) | 14s |
| Afternoon (14 Sep) | 1.5ft (0.4m) | 22s |
| Evening (14 Sep) | 1.5ft (0.4m) | 22s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Wed morning, min 25°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||||||||||
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 | SSW 14 | SW 14 | SW 14 | SW 22 | SW 22 | SW 22 | SW 21 | SW 21 | SW 21 | SW 21 | SW 20 | SSW 20 | SSW 19 | SW 19 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 54 | 78 | 50 | 50 | 124 | 118 | 118 | 117 | 117 | 160 | 210 | 309 | 253 | 251 | 303 | 303 | 296 | 281 | 255 | 319 | 316 | 316 | 316 | 312 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-off | cross-off | cross-off | off | cross-off | off | off | off | glassy | glassy | glassy | off | off | cross-off | cross-off | off | cross-off | cross-off | cross-off | off | off |
High Tide | 6:15AM0.66m | 5:52PM0.44m | 7:04AM0.66m | 6:29PM0.37m | 8:00AM0.66m | 7:20PM0.33m | ||||||||||||||||||
Low Tide | 11:13PM0.06m | 12:19PM0.20m | 11:44PM0.07m | 1:21PM0.24m | 00:20AM0.09m | 2:40PM0.26m | ||||||||||||||||||
 | |  | |  | |  | | | | | | | | | | | | | | | | | | |
 | — | 6:13 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:29 | — | — | — | — | — | — | — | 6:28 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 24 | 25 | 27 | 27 | 27 | 26 | 26 | 25 | 25 | 26 | 28 | 28 | 28 | 27 | 26 | 26 | 25 | 27 | 29 | 29 | 28 | 27 | 26 |
Feels °C | 26 | 25 | 26 | 29 | 30 | 29 | 28 | 29 | 28 | 28 | 29 | 32 | 32 | 32 | 29 | 28 | 28 | 26 | 29 | 31 | 31 | 29 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SSW 14 | SW 14 | SW 14 | SW 14 | SSW 14 | SSW 14 | SW 13 | SW 21 | SW 21 | SW 21 | SW 20 | SSW 20 | SSW 19 | SW 19 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 |
| kJ | 52 | 78 | 50 | 50 | 50 | 75 | 71 | 45 | 117 | 160 | 210 | 309 | 253 | 251 | 303 | 303 | 296 | 281 | 255 | 319 | 316 | 316 | 316 | 312 |
Swell 2 Height (m) Direction Period (s) | SSW 24 | NNE 8 | NNE 8 | NNE 8 | SW 22 | SW 22 | NNE 5 | SW 21 | SW 13 | SSW 13 | SW 13 | SW 13 | SSW 12 | NNE 8 | SW 12 | SW 12 | ESE 6 | SSW 12 | SSW 12 | NNE 7 | NNE 5 | SE 6 | ESE 6 | SE 6 |
| kJ | 54 | 14 | 7 | 7 | 124 | 118 | 4 | 117 | 44 | 67 | 43 | 42 | 31 | 19 | 38 | 38 | 6 | 14 | 14 | 11 | 5 | 8 | 3 | 5 |
Swell 3 Height (m) Direction Period (s) | SW 20 | SSW 24 | SSW 11 | SW 9 | NNE 8 | NNE 8 | SW 22 | NNE 8 | N 8 | N 8 | NNE 8 | NNE 8 | WSW 8 | SW 12 | SSE 8 | N 8 | SW 12 | ESE 6 | NNE 7 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 |
| kJ | 15 | 54 | 12 | 3 | 13 | 6 | 118 | 12 | 10 | 10 | 12 | 12 | 7 | 38 | 7 | 10 | 23 | 3 | 5 | 14 | 13 | 12 | 12 | 12 |
Wind waves Height (m) Direction Period (s) | NNE 8 | E 4 | E 4 | — | — | NNE 4 | ESE 6 | E 6 | — | — | E 6 | E 4 | N 8 | E 5 | NNE 8 | E 6 | E 6 | E 5 | E 10 | E 10 | E 5 | NNE 3 | NNE 4 | NNE 4 |
| kJ | 14 | 11 | 11 | — | — | 4 | 10 | 16 | — | — | 18 | 36 | 10 | 21 | 11 | 5 | 72 | 35 | 165 | 204 | 131 | 5 | 12 | 5 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 4 | 4 | 12 | 12 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 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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