- Forecast
- Maps
- Live
- Weather State
- Spot Information
Mahai'ula Bay Surf Forecast
/ HAW – Big Island (60 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Mahai'ula Bay surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 7 am Tuesday 19 May 2026 HSTForecast update in hr min s Forecast update imminent
Mahai'ula Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mahai'ula Bay sea temperature is
26.4° C
(Which is 1.2°C warmer than normal for this time of year)Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 4mm), mostly falling on Tue afternoon. Warm (max 27°C on Tue morning, min 24°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 19 | Wednesday 20 | Thursday 21 | Fri 22 | |||||||||||||||||||||
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 | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 18 | WSW 2 | SSW 17 | NW 10 | SSW 16 | S 16 | S 16 | SW 15 | S 16 | S 15 | NNE 7 | SSW 15 | S 15 | |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 15 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | cross-on | cross-on | on | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | cross | glassy | cross-off | cross-off | cross-off | cross | cross-on | cross | cross-off | cross-off | cross-off | |
High Tide | 5:26AM0.30m | 6:28PM0.88m | 6:32AM0.28m | 7:22PM0.82m | 7:56AM0.29m | 8:17PM0.76m | ||||||||||||||||||
Low Tide | 10:48AM0.03m | 2:03AM0.14m | 11:37AM0.09m | 3:05AM0.14m | 12:36PM0.17m | |||||||||||||||||||
 |  | |  | |  | |  |  | | |  | | | | | | | | | | | | | |
 | 5:47 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | 5:46 |
 | — | — | — | — | 6:53 | — | — | — | — | — | — | — | 6:53 | — | — | — | — | — | — | — | 6:54 | — | — | 6:54 |
— | — | — | 1 | 1 | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 25 | 26 | 27 | 26 | 26 | 26 | 26 | 25 | 25 | 26 | 27 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 25 | 24 |
30 | 29 | 30 | 29 | 29 | 30 | 30 | 29 | 28 | 29 | 30 | 29 | 29 | 28 | 28 | 26 | 25 | 26 | 27 | 28 | 28 | 25 | 27 | 24 | |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | NNE 6 | SSW 15 | NNE 6 | NNE 6 | NNE 5 | SSW 14 | NNE 5 | NNE 7 | NNE 7 | NNE 6 | NNE 6 | NNE 6 | SSW 16 | S 16 | S 16 | SSW 16 | S 16 | S 15 | S 15 | SSW 15 | NNE 6 |
 kJ | 236 | 163 | 180 | 32 | 242 | 52 | 51 | 37 | 213 | 21 | 56 | 81 | 82 | 77 | 70 | 203 | 134 | 132 | 201 | 124 | 161 | 159 | 169 | 149 |
Swell 2 Height (m) Direction Period (s) | NNE 6 | NNE 6 | NNE 6 | SSW 14 | NE 6 | SSW 14 | SSW 14 | SSW 14 | NNE 5 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | S 16 | SSW 13 | SSW 13 | SSW 13 | SSE 13 | SSE 13 | SSW 12 | SSW 12 | SSE 5 | S 15 |
| kJ | 27 | 21 | 31 | 160 | 38 | 239 | 233 | 213 | 20 | 158 | 156 | 107 | 104 | 102 | 135 | 57 | 57 | 56 | 33 | 33 | 29 | 29 | 5 | 157 |
Swell 3 Height (m) Direction Period (s) | SW 18 | SSW 17 | SSW 17 | SSW 17 | SSE 9 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 13 | S 5 | SSE 5 | SSE 13 | SW 15 | SSW 12 | SSE 13 | SSE 5 | SSW 12 | SSE 5 |
| kJ | 80 | 101 | 99 | 101 | 16 | 18 | 9 | 17 | 16 | 103 | 62 | 103 | 103 | 97 | 67 | 4 | 4 | 57 | 8 | 29 | 16 | 2 | 28 | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | S 10 | — | — | SSW 9 | — | SSW 9 | WSW 2 | — | NW 10 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 7 | NNE 6 | — |
| kJ | — | — | — | — | — | — | 7 | — | — | 8 | — | 8 | 1 | — | 15 | 82 | 96 | 124 | 118 | 145 | 165 | 186 | 160 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 11 | 11 | 100 | 136 | 100 | 11 | 11 | 11 | 19 | 11 | 100 | 1 | 1 | 11 | 1 | 11 | 18 | 1 | 11 | 103 | 11 | 1 | 1 | 1 |
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