Surf Forecasts:
How big are the waves at Mahai'ula Bay today (10 Aug):
- Afternoon surf: Afternoon surf (10 Aug, local time) - 1.5ft (0.4m), 11s period with W swell.
The current surf forecast for Mahai'ula Bay at 5AM is: 0.5m 5s primary swell from a North direction (forecast issued at 01:00am August 10). An open ocean swell of 0.6m 16s is not directed at the surf break, a second open ocean swell of 0.6m 6s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Aug) | - | - |
| Afternoon (10 Aug) | 1.5ft (0.4m) | 11s |
| Evening (10 Aug) | - | - |
Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 5mm), mostly falling on Mon night. Warm (max 28°C on Mon morning, min 25°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||||||||||
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 16 | N 5 | S 15 | W 11 | W 11 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | W 10 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | W 12 | S 19 | S 18 | S 18 | N 11 | S 18 | S 17 | S 16 | S 16 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 0 | 12 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 0 | 17 | 0 | 0 | 0 | 0 | 42 | 0 | 0 | 0 | 58 | 0 | 0 | 0 | 0 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | cross-on | cross-on | cross-on | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | glassy | cross-off | off | glassy | glassy | glassy | cross-on | cross-on | glassy | cross-off | cross-on |
High Tide | 1:52AM0.32m | 2:42PM0.90m | 2:44AM0.37m | 3:22PM0.91m | 3:31AM0.43m | 4:00PM0.88m | ||||||||||||||||||
Low Tide | 7:17AM0.03m | 9:48PM0.11m | 8:12AM0.02m | 10:18PM0.09m | 9:03AM0.02m | 10:47PM0.07m | ||||||||||||||||||
 |  |  | |  |  | | | | | | | | |  | | | | | | | | | | |
 | — | 6:01 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:55 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:53 | — | — |
mm | 1 | — | — | — | — | 1 | 2 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 26 | 26 | 27 | 27 | 27 | 27 | 26 | 26 | 25 | 26 | 28 | 28 | 28 | 27 | 26 |
Feels °C | 30 | 30 | 31 | 32 | 31 | 31 | 31 | 32 | 31 | 30 | 30 | 30 | 31 | 31 | 31 | 29 | 30 | 28 | 28 | 29 | 30 | 31 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | NNE 5 | S 16 | S 15 | SSW 15 | SSW 15 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 18 | S 18 | S 18 | S 17 | S 16 | S 16 |
| kJ | 22 | 183 | 170 | 314 | 322 | 250 | 253 | 250 | 243 | 225 | 280 | 276 | 336 | 331 | 322 | 308 | 295 | 298 | 627 | 620 | 613 | 586 | 643 | 628 |
Swell 2 Height (m) Direction Period (s) | S 16 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 5 | NNE 5 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 5 | NNE 5 | S 18 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 |
| kJ | 186 | 20 | 22 | 22 | 30 | 31 | 22 | 23 | 30 | 19 | 17 | 28 | 31 | 31 | 32 | 26 | 25 | 422 | 277 | 277 | 273 | 277 | 222 | 222 |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SSW 12 | W 11 | W 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | W 10 | SSE 9 | SSW 21 | SSW 20 | S 20 | S 20 | S 19 | NNE 5 | NNE 6 | N 11 | NNE 5 | NNE 6 | NNE 6 | NNE 6 |
| kJ | 82 | 82 | 85 | 37 | 37 | 49 | 40 | 41 | 41 | 42 | 17 | 15 | 86 | 133 | 194 | 276 | 365 | 26 | 20 | 58 | 21 | 34 | 38 | 29 |
Wind waves Height (m) Direction Period (s) | — | N 5 | — | SSW 9 | SSW 9 | — | — | — | — | — | — | — | — | S 9 | — | W 12 | — | — | — | WNW 11 | — | — | — | — |
| kJ | — | 12 | — | 17 | 16 | — | — | — | — | — | — | — | — | 6 | — | 42 | — | — | — | 38 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 19 | 11 | 11 | 99 | 136 | 103 | 100 | 11 | 11 | 19 | 11 | 103 | 105 | 24 | 11 | 1 | 11 | 19 | 19 | 99 | 100 | 100 | 18 | 19 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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