Surf Forecasts:
How big are the waves at Grandma's today (23 Jul):
- Morning surf: Morning surf (23 Jul, local time) - 2.5ft (0.7m), 20s period with SSW swell.
- Afternoon surf: Afternoon surf (23 Jul, local time) - 2ft (0.6m), 20s period with SSW swell.
- Evening surf: Evening surf (23 Jul, local time) - 2.5ft (0.8m), 19s period with SSW swell.
The current surf forecast for Grandma's at 12PM is: 0.6m 20s primary swell from a South-southwest direction and 0.6m 11s secondary swell from a South direction (forecast issued at 07:00am July 23). An open ocean swell of 1.5m 6s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Jul) | 2.5ft (0.7m) | 20s |
| Afternoon (23 Jul) | 2ft (0.6m) | 20s |
| Evening (23 Jul) | 2.5ft (0.8m) | 19s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Thu afternoon, min 24°C on Thu night). Wind will be generally light. | |||||||||||||||||||||||
Thursday 23 | Friday 24 | Saturday 25 | |||||||||||||||||||||
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) | 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 16 | SSW 20 | SSW 19 | SSW 19 | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SSW 18 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 400 | 374 | 346 | 301 | 298 | 424 | 411 | 368 | 360 | 276 | 246 | 270 | 264 | 256 | 240 | 432 | 391 | 391 | 295 | 292 | 443 | 443 | 443 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-off | off | cross-off | off | off | off | off | off | off | off | off | cross-off | off | off | off | off | off | off | off |
High Tide | 12:33PM0.68m | 11:53PM0.28m | 1:21PM0.72m | 00:56AM0.27m | 2:04PM0.76m | ||||||||||||||||||
Low Tide | 4:31AM0.03m | 8:08PM0.22m | 5:21AM0.03m | 8:51PM0.19m | 6:12AM0.02m | 9:24PM0.16m | |||||||||||||||||
 |  |  | | |  | | | | | | | | | | | | | | | | | | |
 | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — |
 | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 25 | 27 | 28 | 27 | 25 | 25 | 24 | 24 | 25 | 27 | 28 | 27 | 25 | 25 | 24 | 24 | 25 | 27 | 28 | 27 | 25 | 24 |
Feels °C | 25 | 26 | 29 | 29 | 27 | 25 | 25 | 25 | 25 | 25 | 27 | 28 | 26 | 24 | 25 | 25 | 25 | 26 | 28 | 28 | 26 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 21 | SSW 21 | SSW 20 | SSW 20 | S 13 | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 20 | SSW 19 | SSW 19 | SSW 19 | SSW 16 | SSW 18 | SSW 18 | SSW 18 |
| kJ | 400 | 374 | 346 | 301 | 170 | 424 | 411 | 368 | 360 | 276 | 246 | 270 | 264 | 227 | 240 | 432 | 391 | 391 | 295 | 198 | 443 | 443 | 443 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 12 | S 12 | S 11 | SSW 20 | S 11 | S 11 | S 11 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | SSW 16 | SSW 16 | SSW 19 | S 11 | NNE 8 | NNE 8 |
| kJ | 73 | 69 | 93 | 90 | 298 | 57 | 56 | 56 | 161 | 151 | 108 | 103 | 102 | 106 | 103 | 104 | 70 | 142 | 142 | 292 | 39 | 37 | 21 |
Swell 3 Height (m) Direction Period (s) | SSE 9 | SW 16 | SW 16 | SW 16 | SW 16 | S 13 | S 13 | S 13 | ESE 6 | NNE 6 | SE 6 | SSW 21 | SSW 21 | SSW 21 | SSW 21 | SE 5 | SSW 16 | S 12 | S 11 | S 11 | E 13 | S 11 | S 11 |
| kJ | 28 | 64 | 65 | 65 | 67 | 55 | 55 | 55 | 8 | 4 | 9 | 148 | 256 | 256 | 150 | 7 | 144 | 66 | 61 | 39 | 3 | 38 | 37 |
Wind waves Height (m) Direction Period (s) | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | ESE 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 5 | E 8 | E 8 | E 8 | N 8 | E 6 | ESE 6 |
| kJ | 89 | 125 | 143 | 188 | 188 | 144 | 144 | 170 | 102 | 7 | 165 | 148 | 228 | 214 | 139 | 121 | 65 | 117 | 142 | 169 | 33 | 86 | 12 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 4 | 4 | 4 | 4 | 185 | 12 | 12 | 4 | 4 | 4 | 4 | 12 | 13 | 12 | 12 | 4 | 4 | 4 | 4 | 12 | 12 | 12 | 4 |
Best forecast wave conditions in Maui | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
Header Global | |||||||||||||||||||||||
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