Surf Forecasts:
How big are the waves at Mahai'ula Bay today (30 Sep):
- Morning surf: Morning surf (30 Sep, local time) - 2.5ft (0.8m), 11s period with W swell.
- Afternoon surf: Afternoon surf (30 Sep, local time) - 2.5ft (0.8m), 10s period with W swell.
- Evening surf: Evening surf (30 Sep, local time) - 3ft (0.9m), 11s period with WNW swell.
The current surf forecast for Mahai'ula Bay at 10AM is: 0.9m 11s primary swell from a West direction (forecast issued at 07:00am September 30). An open ocean swell of 0.6m 5s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Sep) | 2.5ft (0.8m) | 11s |
| Afternoon (30 Sep) | 2.5ft (0.8m) | 10s |
| Evening (30 Sep) | 3ft (0.9m) | 11s |
Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Thu night. Warm (max 28°C on Wed afternoon, min 25°C on Thu night). Wind will be generally light. | |||||||||||||||||||||||
Wednesday 30 | Thursday 1 | Friday 2 | |||||||||||||||||||||
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) | W 9 | W 11 | W 11 | W 10 | W 10 | WNW 11 | WNW 10 | WNW 10 | W 9 | W 9 | W 8 | W 8 | W 9 | W 9 | W 9 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 9 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 61 | 127 | 189 | 171 | 125 | 198 | 177 | 100 | 59 | 39 | 35 | 35 | 56 | 57 | 54 | 50 | 49 | 33 | 29 | 28 | 18 | 18 | 39 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | glassy | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on |
High Tide | 6:22AM0.78m | 5:40PM0.37m | 7:21AM0.75m | 6:23PM0.31m | 8:34AM0.73m | 7:59PM0.26m | |||||||||||||||||
Low Tide | 1:21PM0.24m | 11:38PM0.07m | 2:58PM0.26m | 00:21AM0.11m | 5:07PM0.24m | ||||||||||||||||||
 |  | |  | | |  | | | | | | | | | |  |  | | | | | | |
 | 6:13 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — |
 | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:12 | — | — | — | — | — | — | — | 6:10 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | — | 1 | 1 |
Temp °C | 26 | 27 | 27 | 28 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 25 |
Feels °C | 29 | 31 | 29 | 31 | 29 | 30 | 29 | 29 | 30 | 29 | 30 | 29 | 30 | 29 | 29 | 27 | 28 | 28 | 29 | 28 | 29 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | W 11 | W 11 | W 10 | W 10 | WNW 11 | WNW 10 | WNW 10 | W 9 | S 5 | W 8 | W 8 | W 9 | W 9 | W 9 | W 8 | S 14 | S 14 | S 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 |
| kJ | 160 | 127 | 189 | 171 | 125 | 198 | 177 | 100 | 59 | 17 | 35 | 35 | 56 | 57 | 54 | 50 | 146 | 142 | 126 | 176 | 162 | 157 | 157 |
Swell 2 Height (m) Direction Period (s) | W 9 | SW 15 | S 5 | S 5 | S 5 | S 5 | SSE 4 | S 5 | S 5 | W 9 | S 13 | S 4 | SSW 15 | S 15 | S 14 | S 14 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 9 |
| kJ | 61 | 106 | 18 | 26 | 26 | 16 | 7 | 16 | 16 | 39 | 92 | 6 | 74 | 109 | 107 | 107 | 49 | 33 | 29 | 28 | 18 | 18 | 39 |
Swell 3 Height (m) Direction Period (s) | S 5 | W 9 | SW 15 | SW 15 | SW 15 | SW 14 | SSW 14 | SW 14 | S 13 | S 13 | S 4 | SSW 13 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 5 | S 5 | S 5 | NE 6 |
| kJ | 11 | 42 | 104 | 104 | 104 | 102 | 61 | 100 | 92 | 92 | 9 | 56 | 6 | 6 | 6 | 6 | 6 | 3 | 6 | 8 | 8 | 7 | 12 |
Wind waves Height (m) Direction Period (s) | — | — | — | SSE 5 | SSE 5 | — | SSE 4 | SSE 4 | — | — | — | SSE 4 | S 4 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 46 | 32 | — | 14 | 21 | — | — | — | 10 | 13 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 11 | 0 | 54 | 54 | 19 | 19 | 11 | 34 | 14 | 14 | 101 | 101 | 100 | 34 | 34 | 34 | 100 | 100 | 101 | 101 | 99 | 101 | 14 |
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