Surf Forecasts:
How big are the waves at Grandma's today (22 Jul):
- Morning surf: Morning surf (22 Jul, local time) - 1.5ft (0.4m), 24s period with SSW swell.
- Afternoon surf: Afternoon surf (22 Jul, local time) - 1.5ft (0.4m), 24s period with SSW swell.
- Evening surf: Evening surf (22 Jul, local time) - 1.5ft (0.5m), 22s period with SSW swell.
The current surf forecast for Grandma's at 6AM is: 0.7m 13s primary swell from a South direction and 0.3m 26s secondary swell from a South-southwest direction (forecast issued at 01:00am July 22). An 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 (22 Jul) | 1.5ft (0.4m) | 24s |
| Afternoon (22 Jul) | 1.5ft (0.4m) | 24s |
| Evening (22 Jul) | 1.5ft (0.5m) | 22s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Wed afternoon, min 24°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||||||||||
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) | S 13 | S 13 | SSW 24 | SSW 24 | SSW 24 | SSW 23 | SSW 22 | SSW 22 | SSW 22 | SSW 21 | SSW 21 | SSW 20 | SSW 20 | SSW 20 | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 21 | SSW 21 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 215 | 212 | 222 | 218 | 217 | 309 | 278 | 366 | 263 | 400 | 374 | 307 | 301 | 298 | 424 | 411 | 368 | 360 | 246 | 246 | 270 | 264 | 256 | 251 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | off | off | off | off | off | off | off | off | off | off | off | off | off | cross-off | off | off | off | off | off | off |
High Tide | 11:41AM0.62m | 10:39PM0.30m | 12:33PM0.68m | 11:53PM0.28m | 1:21PM0.72m | |||||||||||||||||||
Low Tide | 3:43AM0.03m | 6:54PM0.26m | 4:31AM0.03m | 8:08PM0.22m | 5:21AM0.03m | 8:51PM0.19m | ||||||||||||||||||
 | |  | | |  |  | | | | | | | | | | | | | | | | | | |
 | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 27 | 28 | 27 | 25 | 25 | 24 | 24 | 25 | 27 | 28 | 27 | 26 | 25 | 24 | 24 | 25 | 27 | 28 | 27 | 25 | 25 |
Feels °C | 28 | 28 | 27 | 29 | 29 | 27 | 25 | 26 | 25 | 25 | 26 | 28 | 28 | 27 | 26 | 25 | 26 | 26 | 25 | 29 | 29 | 26 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | S 13 | S 13 | S 13 | S 13 | S 10 | S 13 | S 13 | S 13 | S 12 | SSW 21 | SSW 21 | SSW 20 | SSW 20 | S 13 | SSW 19 | SSW 19 | SSW 18 | S 13 | S 12 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 16 |
| kJ | 215 | 212 | 126 | 121 | 80 | 206 | 161 | 112 | 107 | 400 | 374 | 307 | 301 | 173 | 424 | 411 | 368 | 160 | 148 | 246 | 270 | 264 | 227 | 214 |
Swell 2 Height (m) Direction Period (s) | SSW 26 | SSW 26 | S 11 | S 11 | S 13 | SSW 23 | SSW 22 | SSW 22 | SSW 22 | S 12 | S 12 | S 12 | S 11 | SSW 20 | S 11 | S 11 | S 11 | SSW 18 | SSW 18 | S 12 | S 12 | S 12 | S 12 | S 12 |
| kJ | 132 | 127 | 59 | 57 | 86 | 309 | 278 | 366 | 263 | 73 | 69 | 95 | 90 | 298 | 57 | 36 | 56 | 360 | 246 | 108 | 103 | 106 | 106 | 75 |
Swell 3 Height (m) Direction Period (s) | ESE 6 | SW 15 | SSW 24 | SSW 24 | SSW 24 | SW 17 | SW 18 | SSW 17 | SSW 17 | SSE 9 | SW 16 | SW 16 | SW 16 | SW 16 | S 13 | S 13 | SE 6 | NNE 9 | NE 7 | ESE 6 | SSW 21 | SSW 21 | SSW 21 | SSW 21 |
| kJ | 6 | 37 | 222 | 218 | 217 | 77 | 78 | 119 | 117 | 28 | 64 | 65 | 65 | 67 | 55 | 55 | 8 | 16 | 12 | 7 | 148 | 256 | 256 | 251 |
Wind waves Height (m) Direction Period (s) | E 6 | E 6 | E 6 | E 6 | E 6 | E 5 | N 10 | ESE 6 | E 6 | E 5 | E 6 | E 6 | E 6 | E 6 | E 6 | ESE 7 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | ESE 6 |
| kJ | 89 | 92 | 92 | 112 | 72 | 53 | 8 | 10 | 139 | 54 | 134 | 212 | 165 | 190 | 124 | 15 | 165 | 91 | 112 | 170 | 198 | 222 | 176 | 15 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 4 | 4 | 4 | 4 | 4 | 12 | 12 | 4 | 4 | 4 | 12 | 4 | 4 | 4 | 12 | 12 | 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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