Surf Forecasts:
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 1.5ft (0.4m) | 11s |
| Afternoon (20 Aug) | - | - |
| Evening (20 Aug) | 1.5ft (0.5m) | 11s |
Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Thu morning, min 26°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||||||||||
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) | SW 16 | SW 17 | WNW 11 | WNW 11 | SSW 18 | W 11 | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 | W 11 | W 11 | W 10 | W 10 | SW 9 | SSW 16 | N 6 | SSW 16 | W 10 | W 11 | WNW 11 | WNW 12 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 0 | 0 | 40 | 40 | 0 | 61 | 61 | 59 | 53 | 52 | 51 | 52 | 58 | 83 | 54 | 51 | 12 | 0 | 20 | 0 | 52 | 58 | 64 | 77 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | glassy | on | cross-on | cross-on | glassy | cross | cross | glassy | glassy | cross-on | cross-on | cross | cross | glassy | glassy | glassy | glassy | cross-on | cross-on | glassy | glassy | glassy |
High Tide | 10:49AM0.62m | 12:03PM0.64m | 11:29PM0.26m | 12:58PM0.68m | ||||||||||||||||||||
Low Tide | 2:09AM0.16m | 3:15AM0.18m | 8:38PM0.25m | 4:44AM0.18m | 8:45PM0.21m | |||||||||||||||||||
 | |  | | | |  | | | | | | |  | | | | | | | | | | | |
 | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:49 | — | — | — | — | — | — | — | 6:47 | — | — | — | — | — | — | — | 6:46 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 27 | 28 | 28 | 27 | 27 | 26 | 26 | 26 | 27 | 28 | 27 | 27 | 27 | 26 |
Feels °C | 29 | 30 | 30 | 31 | 30 | 31 | 31 | 30 | 30 | 31 | 31 | 31 | 31 | 29 | 31 | 30 | 31 | 30 | 32 | 31 | 30 | 31 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | NNE 6 | NNE 6 | SW 18 | SSW 18 | SSW 18 | SW 17 | SW 16 | SSW 16 | SW 17 | SW 17 | SW 17 | SW 16 | W 11 | W 11 | SW 16 | SW 16 | SW 16 | NNE 6 | NNE 6 | NE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 |
| kJ | 22 | 16 | 152 | 209 | 207 | 143 | 133 | 177 | 284 | 298 | 224 | 127 | 58 | 83 | 261 | 261 | 261 | 35 | 26 | 39 | 58 | 55 | 42 | 44 |
Swell 2 Height (m) Direction Period (s) | SW 16 | SW 17 | NNE 6 | WNW 11 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | W 10 | W 10 | W 10 | SW 16 | SW 16 | NNE 7 | NNE 7 | NNE 6 | S 14 | SSW 16 | SSW 16 | SSW 15 | SW 15 | WNW 11 | SSW 15 |
| kJ | 130 | 147 | 16 | 40 | 19 | 19 | 27 | 26 | 26 | 52 | 51 | 52 | 124 | 121 | 30 | 38 | 37 | 138 | 164 | 164 | 150 | 112 | 64 | 152 |
Swell 3 Height (m) Direction Period (s) | S 12 | S 12 | WNW 11 | NNE 7 | S 11 | W 11 | W 11 | W 11 | W 10 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NE 7 | W 10 | W 10 | S 13 | SSW 16 | S 12 | S 12 | W 10 | W 11 | SW 15 | WNW 12 |
| kJ | 44 | 42 | 40 | 17 | 37 | 61 | 61 | 59 | 53 | 18 | 18 | 18 | 18 | 22 | 54 | 51 | 126 | 160 | 78 | 76 | 52 | 58 | 110 | 77 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | N 7 | N 7 | — | SW 9 | SW 9 | — | N 6 | — | SSE 8 | S 3 | SW 3 | SW 3 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 15 | 15 | — | 12 | 12 | — | 20 | — | 22 | 5 | 2 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 24 | 14 | 1 | 36 | 36 | 34 | 1 | 4 | 18 | 1 | 1 | 36 | 36 | 4 | 13 | 1 | 11 | 11 | 11 | 34 | 34 | 1 | 1 | 0 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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