Surf Forecasts:
How big are the waves at Mahai'ula Bay today (21 Jun):
- Morning surf: Morning surf (21 Jun, local time) - 1ft (0.3m), 9s period with NW swell.
- Afternoon surf: Afternoon surf (21 Jun, local time) - 1.5ft (0.5m), 4s period with NNE swell.
The current surf forecast for Mahai'ula Bay at 5AM is: 0.3m 9s primary swell from a Northwest direction (forecast issued at 01:00am June 21). An open ocean swell of 0.8m 14s is not directed at the surf break, a second open ocean swell of 0.4m 4s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Jun) | 1ft (0.3m) | 9s |
| Afternoon (21 Jun) | 1.5ft (0.5m) | 4s |
| Evening (21 Jun) | - | - |
Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Sun night. Warm (max 27°C on Sun morning, min 24°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 21 | Monday 22 | Tuesday 23 | ||||||||||||||||||||||
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) | WNW 9 | NW 9 | NW 9 | S 19 | NNE 4 | SW 16 | S 18 | S 18 | S 18 | NW 9 | NNW 3 | S 16 | S 16 | S 16 | S 16 | S 16 | SW 3 | NNE 4 | SSW 18 | N 3 | S 15 | S 19 | S 19 | S 19 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 8 | 13 | 13 | 0 | 10 | 40 | 0 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 5 | 6 | 0 | 3 | 0 | 0 | 0 | 0 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | on | glassy | cross-off | cross | cross-on | cross-on | cross-on | cross | on | glassy | cross | cross | on | on | cross | glassy | cross-on | cross-on | cross-on | cross | cross-on |
High Tide | 10:19AM0.49m | 9:01PM0.55m | 11:27AM0.56m | 9:49PM0.46m | 12:21PM0.63m | 10:49PM0.40m | ||||||||||||||||||
Low Tide | 3:32AM0.11m | 3:20PM0.35m | 4:09AM0.11m | 5:17PM0.37m | 4:46AM0.11m | 7:04PM0.34m | ||||||||||||||||||
 |  |  | |  | |  |  | | | | | | | | | | | | | | | | | |
 | — | 5:46 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:06 | — | — |
mm | 1 | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 27 | 27 | 27 | 26 | 25 | 25 | 25 | 26 | 26 | 27 | 26 | 25 | 25 | 24 | 25 | 26 | 26 | 26 | 27 | 26 | 26 |
Feels °C | 28 | 29 | 29 | 30 | 31 | 29 | 28 | 28 | 28 | 27 | 28 | 28 | 30 | 28 | 26 | 27 | 26 | 28 | 28 | 28 | 28 | 30 | 28 | 29 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 18 | S 18 | S 18 | S 12 | S 16 | S 16 | S 16 | NNE 5 | NNE 5 | S 4 | S 4 | S 4 | NNE 10 | S 15 | NE 9 | NE 9 | NE 6 |
| kJ | 264 | 253 | 229 | 225 | 171 | 165 | 165 | 307 | 304 | 225 | 103 | 190 | 188 | 188 | 42 | 30 | 8 | 13 | 6 | 38 | 109 | 68 | 86 | 39 |
Swell 2 Height (m) Direction Period (s) | SW 18 | NE 4 | S 20 | S 19 | S 19 | S 19 | S 18 | S 13 | S 13 | S 12 | S 17 | S 12 | S 12 | S 12 | S 16 | S 16 | NNE 5 | S 12 | S 12 | SSW 15 | NE 10 | S 15 | S 19 | S 19 |
| kJ | 79 | 4 | 186 | 266 | 184 | 188 | 227 | 162 | 116 | 112 | 220 | 71 | 69 | 69 | 188 | 132 | 13 | 43 | 42 | 71 | 45 | 115 | 190 | 273 |
Swell 3 Height (m) Direction Period (s) | NNE 4 | S 20 | NE 4 | NNE 8 | NE 8 | SW 16 | NNE 4 | NNE 4 | S 4 | S 4 | NNE 11 | S 4 | NE 11 | NE 10 | S 12 | S 12 | S 16 | S 15 | SSW 18 | S 11 | SSW 18 | S 19 | S 16 | S 16 |
| kJ | 3 | 72 | 4 | 25 | 10 | 40 | 12 | 13 | 8 | 5 | 47 | 3 | 18 | 17 | 69 | 69 | 132 | 72 | 104 | 41 | 60 | 182 | 126 | 131 |
Wind waves Height (m) Direction Period (s) | WNW 9 | NW 9 | NW 9 | — | NNE 4 | NNE 4 | — | SSE 4 | — | NW 9 | NNW 3 | NNE 11 | NNE 4 | NNE 5 | — | S 3 | SW 3 | NNE 4 | NNE 10 | N 3 | NNE 10 | — | — | — |
| kJ | 8 | 13 | 13 | — | 10 | 11 | — | 11 | — | 3 | 2 | 78 | 17 | 41 | — | 1 | 5 | 6 | 56 | 3 | 32 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 19 | 99 | 99 | 99 | 103 | 24 | 24 | 38 | 19 | 19 | 99 | 99 | 103 | 100 | 23 | 100 | 97 | 19 | 11 | 99 | 99 | 99 | 38 | 100 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mahai'ula Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest