Surf Forecasts:
How big are the waves at Mahai'ula Bay today (12 Oct):
- Morning surf: Morning surf (12 Oct, local time) - 1.5ft (0.4m), 13s period with WNW swell.
- Afternoon surf: Afternoon surf (12 Oct, local time) - 1.5ft (0.4m), 13s period with WNW swell.
- Evening surf: Evening surf (12 Oct, local time) - 1.5ft (0.4m), 16s period with SW swell.
The current surf forecast for Mahai'ula Bay at 9PM is: 0.4m 16s primary swell from a Southwest direction (forecast issued at 01:00pm October 12). An open ocean swell of 0.8m 14s is not directed at the surf break, a second open ocean swell of 0.5m 7s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Oct) | 1.5ft (0.4m) | 13s |
| Afternoon (12 Oct) | 1.5ft (0.4m) | 13s |
| Evening (12 Oct) | 1.5ft (0.4m) | 16s |
Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Wed night. Warm (max 27°C on Mon afternoon, min 25°C on Mon night). Wind will be generally light. | |||||||||||||||||||||
Mon 12 | Tuesday 13 | Wednesday 14 | |||||||||||||||||||
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 15 | WNW 13 | S 15 | SW 16 | WNW 13 | NW 16 | NW 16 | NW 16 | NW 15 | NW 15 | NW 15 | NW 14 | NW 14 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 13 | NW 13 | S 20 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 54 | 0 | 95 | 54 | 91 | 125 | 121 | 110 | 107 | 104 | 103 | 100 | 97 | 92 | 88 | 87 | 85 | 84 | 84 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross | glassy | glassy | glassy | glassy | cross-on | cross-on | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 4:24PM0.43m | 5:17AM0.77m | 4:52PM0.38m | 5:55AM0.74m | 5:19PM0.34m | ||||||||||||||||
Low Tide | 11:23AM0.18m | 10:10PM0.07m | 12:10PM0.21m | 10:34PM0.09m | 1:04PM0.23m | 11:00PM0.11m | |||||||||||||||
 | |  |  | | | | | | | | | | | | | | | |  |  | |
 | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — |
 | — | — | 6:02 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:00 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 27 | 27 | 27 | 26 | 26 | 26 | 25 | 26 | 27 | 27 | 27 | 26 | 26 | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 25 |
Feels °C | 29 | 29 | 29 | 28 | 29 | 30 | 28 | 30 | 29 | 29 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | S 15 | S 15 | S 15 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 |
| kJ | 209 | 272 | 272 | 268 | 253 | 173 | 125 | 171 | 167 | 167 | 167 | 165 | 209 | 138 | 136 | 134 | 134 | 136 | 136 | 136 | 98 |
Swell 2 Height (m) Direction Period (s) | SSW 9 | SW 17 | SW 16 | NE 7 | NNE 6 | NE 7 | NE 7 | NW 16 | NW 15 | NE 6 | NNE 6 | NW 14 | NW 14 | NW 14 | NW 14 | NNE 4 | NNE 4 | NNE 4 | NW 13 | S 20 | NNE 9 |
| kJ | 27 | 137 | 133 | 25 | 25 | 21 | 22 | 121 | 110 | 15 | 21 | 103 | 100 | 97 | 92 | 11 | 11 | 12 | 84 | 202 | 52 |
Swell 3 Height (m) Direction Period (s) | NE 8 | WNW 13 | NE 8 | SW 16 | WNW 13 | NW 16 | NW 16 | NE 6 | NE 6 | NW 15 | NW 15 | NNE 5 | NNE 5 | NNE 5 | NNE 4 | NW 13 | NW 13 | NW 13 | NNE 5 | NW 13 | S 20 |
| kJ | 15 | 54 | 20 | 95 | 54 | 91 | 125 | 21 | 18 | 107 | 104 | 19 | 10 | 12 | 7 | 88 | 87 | 85 | 8 | 84 | 190 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 4 | — | SSW 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | — | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 99 | 100 | 19 | 14 | 1 | 0 | 0 | 0 | 100 | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 100 | 100 | 100 | 100 | 100 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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