Surf Forecasts:
How big are the waves at Mahai'ula Bay today (28 Jul):
The current surf forecast for Mahai'ula Bay at 1PM is: 0.7m 5s primary swell from a North-northeast direction (forecast issued at 07:00am July 28). An open ocean swell of 0.9m 9s is not directed at the surf break, a second open ocean swell of 0.8m 14s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
Short Range ForecastSome drizzle, heaviest during Thu morning. Warm (max 28°C on Tue morning, min 26°C on Tue night). Wind will be generally light. | |||||||||||||||||||||||
Tuesday 28 | Wednesday 29 | Thursday 30 | |||||||||||||||||||||
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 | NNE 5 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | WNW 9 | WNW 9 | SSW 13 | SSW 13 | SW 19 | SW 19 | NW 9 | SSW 13 | N 4 | S 13 | S 13 | S 13 | WSW 8 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 0 | 0 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 8 | 0 | 0 | 58 | 58 | 19 | 0 | 11 | 0 | 0 | 0 | 13 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross-on | cross-on | cross-on | cross | glassy | glassy | cross | cross | on | on | cross-on | cross-on | cross | cross-off | cross | on | on | cross-on | cross-on | cross | cross |
High Tide | 3:05AM0.34m | 3:48PM0.82m | 3:41AM0.37m | 4:17PM0.82m | 4:18AM0.40m | 4:45PM0.81m | |||||||||||||||||
Low Tide | 8:31AM0.06m | 10:48PM0.14m | 9:09AM0.06m | 11:12PM0.13m | 9:46AM0.07m | ||||||||||||||||||
 |  | |  | | | | | | | | | | | | | |  | | | | | | |
 | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — |
 | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:00 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — |
Temp °C | 26 | 27 | 28 | 28 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 28 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 |
Feels °C | 30 | 30 | 29 | 31 | 31 | 30 | 31 | 31 | 30 | 30 | 31 | 31 | 31 | 31 | 29 | 29 | 30 | 30 | 29 | 30 | 30 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | NNE 9 | NNE 9 | SSW 14 | NNE 9 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | NNE 9 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | NNE 7 | SSW 13 | SSW 13 | S 13 | S 13 | S 13 | NE 6 |
| kJ | 147 | 121 | 195 | 108 | 265 | 204 | 258 | 247 | 243 | 243 | 67 | 178 | 176 | 173 | 225 | 225 | 48 | 125 | 168 | 225 | 219 | 166 | 43 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 14 | NNE 9 | SSW 14 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NE 9 | NE 9 | SSW 13 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 7 | SSW 13 | S 15 | NNE 7 | NNE 7 | NE 7 | NE 7 | S 13 |
| kJ | 198 | 192 | 54 | 261 | 86 | 68 | 70 | 68 | 84 | 81 | 137 | 61 | 58 | 44 | 50 | 70 | 170 | 68 | 43 | 40 | 47 | 46 | 166 |
Swell 3 Height (m) Direction Period (s) | SSE 10 | ENE 13 | ENE 13 | ENE 13 | NE 12 | NE 12 | NE 11 | NE 10 | NE 13 | NE 12 | SSW 15 | S 16 | S 16 | S 16 | SW 19 | SW 19 | S 15 | S 4 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 |
| kJ | 9 | 17 | 35 | 64 | 35 | 72 | 60 | 50 | 6 | 6 | 75 | 78 | 77 | 75 | 58 | 58 | 68 | 5 | 154 | 152 | 152 | 150 | 138 |
Wind waves Height (m) Direction Period (s) | — | — | NNE 5 | — | — | — | — | — | — | — | WNW 9 | WNW 9 | — | — | SW 9 | SW 9 | NW 9 | NNE 7 | N 4 | — | SSW 8 | SSW 8 | WSW 8 |
| kJ | — | — | 23 | — | — | — | — | — | — | — | 8 | 8 | — | — | 12 | 3 | 19 | 55 | 11 | — | 7 | 7 | 13 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 1 | 19 | 99 | 13 | 11 | 11 | 1 | 1 | 24 | 18 | 54 | 100 | 19 | 38 | 38 | 1 | 18 | 19 | 100 | 113 | 101 | 19 | 21 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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