Surf Forecasts:
How big are the waves at Mahai'ula Bay today (24 Aug):
- Afternoon surf: Afternoon surf (24 Aug, local time) - 1.5ft (0.4m), 11s period with WNW swell.
The current surf forecast for Mahai'ula Bay at 10AM is: 0.4m 11s primary swell from a Northwest direction (forecast issued at 07:00am August 24). An open ocean swell of 0.8m 13s is not directed at the surf break, a second open ocean swell of 0.7m 6s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 Aug) | - | - |
| Afternoon (24 Aug) | 1.5ft (0.4m) | 11s |
| Evening (24 Aug) | - | - |
Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Tue night. Warm (max 29°C on Mon morning, min 25°C on Wed night). Wind will be generally light. | |||||||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||||||||
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 14 | SSW 14 | NW 11 | WNW 11 | SSW 13 | SSW 13 | SSW 13 | N 5 | N 5 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | W 9 | S 18 | SSW 15 | WNW 9 | NW 9 | S 18 | SSW 17 | W 9 | S 19 | S 19 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 0 | 0 | 33 | 47 | 0 | 0 | 0 | 15 | 13 | 0 | 0 | 0 | 0 | 15 | 0 | 0 | 8 | 14 | 0 | 0 | 15 | 0 | 0 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | on | cross | cross-off | cross | glassy | cross-on | cross-off | glassy | cross-on | cross-on | cross-off | glassy | glassy | cross-off | glassy | glassy | cross-on | cross | glassy | cross-off |
High Tide | 2:15PM0.76m | 2:16AM0.36m | 2:46PM0.78m | 2:51AM0.41m | 3:15PM0.79m | ||||||||||||||||||
Low Tide | 6:54AM0.12m | 9:20PM0.16m | 7:39AM0.10m | 9:39PM0.14m | 8:20AM0.08m | 9:58PM0.11m | |||||||||||||||||
 |  | |  | |  |  | | |  | | | | |  | | | | | | | | | |
 | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — |
 | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:44 | — | — |
mm | — | — | — | 1 | 1 | 1 | — | 1 | 1 | — | — | — | — | 1 | 1 | 2 | 1 | — | — | — | — | — | — |
Temp °C | 27 | 28 | 29 | 28 | 28 | 28 | 27 | 27 | 26 | 27 | 28 | 28 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 26 | 26 | 26 |
Feels °C | 31 | 32 | 32 | 32 | 32 | 31 | 32 | 32 | 30 | 30 | 32 | 32 | 30 | 30 | 30 | 31 | 29 | 29 | 30 | 30 | 29 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | NNE 6 | NNE 6 | SSW 13 | SSW 13 | NE 6 | NNE 6 | NNE 6 | SSW 12 | NNE 5 | NNE 5 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 5 | NNE 5 | NNE 5 | NNE 5 | SSW 17 | SSW 17 | NNE 6 | S 19 |
| kJ | 41 | 32 | 204 | 204 | 37 | 47 | 30 | 121 | 24 | 36 | 34 | 36 | 37 | 34 | 34 | 34 | 44 | 42 | 31 | 381 | 300 | 40 | 573 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 14 | NNE 6 | NNE 6 | SSW 13 | SSW 13 | SSW 13 | NNE 6 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 16 | SSW 12 | S 18 | SSW 15 | SSW 13 | SSW 14 | S 18 | NNE 6 | NNE 6 | S 19 | NNE 5 |
| kJ | 160 | 170 | 32 | 32 | 201 | 195 | 170 | 28 | 119 | 117 | 117 | 113 | 188 | 81 | 163 | 167 | 92 | 163 | 230 | 27 | 46 | 480 | 34 |
Swell 3 Height (m) Direction Period (s) | SSE 12 | SSE 12 | NW 11 | WNW 11 | SSE 6 | SSW 18 | S 6 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 12 | SSW 14 | SSW 12 | S 18 | S 18 | S 18 | SSW 14 | S 19 | S 20 | S 17 | SSW 13 |
| kJ | 86 | 49 | 33 | 47 | 13 | 103 | 11 | 149 | 146 | 201 | 146 | 198 | 111 | 120 | 81 | 165 | 165 | 162 | 160 | 179 | 276 | 270 | 135 |
Wind waves Height (m) Direction Period (s) | — | — | — | N 6 | — | S 6 | — | N 5 | N 5 | — | — | — | — | W 9 | — | — | WNW 9 | NW 9 | — | — | W 9 | — | — |
| kJ | — | — | — | 15 | — | 12 | — | 15 | 13 | — | — | — | — | 15 | — | — | 8 | 14 | — | — | 15 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 11 | 11 | 100 | 136 | 23 | 24 | 18 | 100 | 19 | 11 | 11 | 100 | 113 | 100 | 100 | 100 | 11 | 11 | 11 | 100 | 100 | 97 | 11 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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