Surf Forecasts:
How big are the waves at Grandma's today (22 Aug):
- Morning surf: Morning surf (22 Aug, local time) - 2ft (0.6m), 16s period with SSW swell.
- Afternoon surf: Afternoon surf (22 Aug, local time) - 2ft (0.6m), 16s period with SSW swell.
- Evening surf: Evening surf (22 Aug, local time) - 2ft (0.6m), 16s period with SSW swell.
The current surf forecast for Grandma's at 1PM is: 0.6m 16s primary swell from a South-southwest direction and 0.4m 12s secondary swell from a South direction (forecast issued at 07:00am August 22). An open ocean swell of 1.8m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Aug) | 2ft (0.6m) | 16s |
| Afternoon (22 Aug) | 2ft (0.6m) | 16s |
| Evening (22 Aug) | 2ft (0.6m) | 16s |
Table - waves today at Grandma's. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 4mm), mostly falling on Sun afternoon. Warm (max 30°C on Sat afternoon, min 25°C on Sat night). Wind will be generally light. | |||||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||||||||
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 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 171 | 171 | 171 | 169 | 166 | 164 | 162 | 112 | 110 | 110 | 109 | 82 | 89 | 73 | 81 | 140 | 138 | 116 | 107 | 102 | 101 | 99 | 98 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | glassy | off | cross-off | off | off | off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | glassy | glassy | glassy | glassy | off |
High Tide | 12:49PM0.72m | 00:48AM0.31m | 1:33PM0.75m | 1:37AM0.34m | 2:13PM0.77m | ||||||||||||||||||
Low Tide | 4:52AM0.09m | 8:14PM0.19m | 5:52AM0.08m | 8:41PM0.16m | 6:44AM0.07m | 9:06PM0.14m | |||||||||||||||||
 |  |  | | |  | | | | | | |  | | | | | | |  | |  | | |
 | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — |
 | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:49 | — | — | — | — | — | — | — | 6:49 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | 1 | 1 | 1 | — |
Temp °C | 26 | 26 | 29 | 30 | 29 | 27 | 26 | 26 | 25 | 27 | 28 | 28 | 27 | 26 | 26 | 26 | 26 | 26 | 28 | 29 | 28 | 27 | 26 |
Feels °C | 28 | 28 | 33 | 33 | 32 | 29 | 28 | 28 | 27 | 28 | 30 | 29 | 28 | 28 | 28 | 30 | 29 | 29 | 32 | 33 | 32 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 |
| kJ | 171 | 171 | 171 | 169 | 166 | 164 | 162 | 112 | 110 | 110 | 109 | 54 | 89 | 73 | 81 | 140 | 138 | 116 | 107 | 102 | 101 | 99 | 98 |
Swell 2 Height (m) Direction Period (s) | S 13 | S 14 | S 12 | S 12 | S 12 | WNW 10 | S 12 | ESE 6 | ESE 6 | ESE 6 | SSE 13 | SE 7 | SE 7 | SE 7 | ESE 7 | ESE 7 | SE 7 | SE 7 | SSE 12 | SSE 12 | SSE 12 | ESE 7 | SSW 17 |
| kJ | 55 | 100 | 47 | 47 | 46 | 20 | 46 | 16 | 16 | 16 | 58 | 12 | 13 | 12 | 18 | 19 | 12 | 12 | 49 | 48 | 47 | 17 | 59 |
Swell 3 Height (m) Direction Period (s) | W 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | S 12 | WNW 10 | WNW 10 | SSE 13 | SSE 13 | SE 6 | SSW 16 | SW 15 | SW 14 | SSW 15 | SSE 13 | SSE 13 | SSE 12 | SE 7 | ESE 7 | ESE 7 | SSW 18 | ESE 7 |
| kJ | 17 | 19 | 19 | 20 | 20 | 45 | 21 | 20 | 58 | 58 | 10 | 82 | 33 | 52 | 72 | 33 | 32 | 30 | 14 | 10 | 17 | 61 | 9 |
Wind waves Height (m) Direction Period (s) | E 6 | E 6 | E 6 | E 6 | E 6 | NNE 6 | ESE 7 | E 6 | E 6 | E 6 | E 6 | E 7 | E 7 | E 6 | E 6 | E 7 | E 7 | E 6 | E 6 | E 6 | NNE 6 | E 6 | E 6 |
| kJ | 117 | 139 | 204 | 244 | 244 | 7 | 17 | 228 | 284 | 219 | 228 | 250 | 280 | 202 | 263 | 297 | 258 | 272 | 272 | 282 | 6 | 209 | 202 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 12 | 12 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
Best forecast wave conditions in Maui | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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