Surf Forecasts:
How big are the waves at Mahai'ula Bay today (29 Jul):
The current surf forecast for Mahai'ula Bay at 5PM is: 0.2m 9s primary swell from a West direction (forecast issued at 01:00pm July 29). An open ocean swell of 0.7m 13s is not directed at the surf break, a second open ocean swell of 0.6m 8s is not directed at the surf break. The wind direction is predicted to be onshore.
Short Range ForecastSome drizzle, heaviest during Wed night. Warm (max 28°C on Thu afternoon, min 26°C on Wed night). Wind will be generally light. | |||||||||||||||||||||
Wed 29 | Thursday 30 | Friday 31 | |||||||||||||||||||
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) | WNW 9 | SSW 13 | W 9 | SSW 13 | SW 19 | SW 19 | SW 8 | SSW 12 | SSW 13 | S 13 | S 13 | S 13 | S 13 | S 13 | N 5 | SW 16 | SW 2 | SW 3 | W 3 | SW 15 | SSW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 8 | 0 | 6 | 0 | 58 | 58 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 0 | 1 | 2 | 4 | 0 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | cross-off | cross-off | cross-on | on | cross-on | cross | cross | glassy | cross-on | glassy | glassy | glassy | on | glassy | glassy | glassy | cross-off |
High Tide | 4:17PM0.82m | 4:18AM0.40m | 4:45PM0.81m | 4:57AM0.44m | 5:12PM0.77m | ||||||||||||||||
Low Tide | 9:09AM0.06m | 11:12PM0.13m | 9:46AM0.07m | 11:35PM0.12m | 10:24AM0.11m | ||||||||||||||||
 |  | |  | | |  | | | | | | | | | | | | |  | | |
 | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — |
 | — | — | 7:01 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — |
mm | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 28 | 27 | 27 | 27 | 26 | 26 | 26 | 28 | 28 | 28 | 26 | 26 |
Feels °C | 31 | 30 | 30 | 32 | 29 | 29 | 30 | 29 | 30 | 30 | 29 | 31 | 31 | 30 | 29 | 30 | 30 | 31 | 32 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | NNE 9 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 13 | S 13 | S 13 | NNE 6 | NNE 6 | S 13 | S 13 | NE 6 | NNE 6 | NNE 6 | NNE 6 | SW 15 | SSW 15 |
| kJ | 70 | 178 | 176 | 173 | 225 | 225 | 170 | 162 | 168 | 225 | 219 | 64 | 47 | 163 | 163 | 39 | 40 | 44 | 52 | 178 | 148 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 7 | NE 7 | NNE 7 | SW 18 | SW 18 | SW 18 | S 13 | S 13 | SW 16 | NNE 6 | S 13 | S 12 | S 12 | SW 15 | S 12 | S 12 |
| kJ | 137 | 62 | 44 | 36 | 40 | 47 | 53 | 33 | 154 | 152 | 152 | 215 | 166 | 129 | 32 | 121 | 112 | 106 | 183 | 72 | 72 |
Swell 3 Height (m) Direction Period (s) | SSW 15 | S 16 | S 16 | S 16 | SW 19 | SW 19 | S 15 | S 15 | S 15 | S 4 | S 4 | SW 18 | SW 17 | S 4 | SSW 16 | SW 16 | SSW 16 | SSW 16 | S 12 | S 5 | SSE 5 |
| kJ | 75 | 78 | 77 | 75 | 58 | 58 | 68 | 68 | 67 | 3 | 1 | 150 | 138 | 4 | 173 | 127 | 169 | 162 | 104 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | WNW 9 | — | W 9 | — | — | — | SW 8 | — | N 7 | NNE 7 | NNE 6 | SSW 8 | S 3 | NNE 6 | N 5 | — | SW 2 | SW 3 | W 3 | NNE 6 | NNE 6 |
| kJ | 8 | — | 6 | — | — | — | 3 | — | 24 | 35 | 45 | 7 | 6 | 31 | 17 | — | 1 | 2 | 4 | 85 | 118 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 99 | 99 | 99 | 99 | 1 | 1 | 13 | 19 | 99 | 103 | 38 | 1 | 19 | 1 | 24 | 1 | 100 | 100 | 1 | 1 | 1 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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