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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 1 am Friday 29 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
26.1° C
(Which is slightly warmer than usual)Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 26°C on Sun afternoon, min 24°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||||||
Friday 29 | Saturday 30 | Sunday 31 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
S 21 | S 20 | S 20 | S 20 | S 19 | S 19 | S 18 | S 18 | S 18 | S 17 | S 17 | S 17 | S 16 | S 16 | S 16 | S 16 | S 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | S 20 | S 19 | |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | glassy | cross-on | cross-on | cross-on | cross | cross | cross-off | glassy | glassy | cross-on | cross-on | cross | cross | cross | cross | glassy | glassy | on | on | cross-on | glassy | cross-off | |
High Tide | 2:11AM0.37m | 3:13PM0.81m | 2:50AM0.35m | 3:46PM0.82m | 3:27AM0.33m | 4:21PM0.82m | ||||||||||||||||||
Low Tide | 7:52AM0.07m | 10:18PM0.19m | 8:23AM0.06m | 10:57PM0.17m | 8:55AM0.06m | |||||||||||||||||||
 |  |  |  | | | | | | | | | | | | | | | | | | | | | |
 | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:59 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 26 | 26 | 25 | 25 |
26 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 27 | 26 | 27 | 27 | 26 | 27 | 26 | 26 | 28 | 27 | 27 | 27 | 28 | 28 | 27 | |
Swell 1 Height (m) Direction Period (s) | S 21 | S 20 | S 20 | S 20 | S 19 | S 19 | S 18 | S 18 | S 18 | S 17 | S 17 | S 17 | S 16 | S 16 | S 16 | S 16 | S 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 |
 kJ | 436 | 525 | 624 | 775 | 760 | 728 | 668 | 646 | 632 | 617 | 603 | 569 | 542 | 529 | 516 | 509 | 496 | 400 | 380 | 360 | 355 | 280 | 276 | 346 |
Swell 2 Height (m) Direction Period (s) | NNE 12 | NNE 8 | NNE 8 | NNE 11 | NNE 8 | NNE 6 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NE 8 | NNE 9 | NNE 9 | NNE 8 | NNE 7 | NNE 8 | NNE 8 | S 11 | NNE 8 | NNE 8 | SSW 21 | NNE 8 | S 20 | S 19 |
| kJ | 125 | 51 | 42 | 101 | 50 | 24 | 43 | 42 | 41 | 40 | 29 | 53 | 50 | 39 | 37 | 46 | 45 | 37 | 24 | 24 | 87 | 41 | 276 | 369 |
Swell 3 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | S 11 | S 11 | NNE 11 | S 11 | S 11 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | NNE 5 | S 11 | S 11 | S 11 | SSW 20 | NNE 8 | NNE 4 |
| kJ | 64 | 61 | 61 | 60 | 60 | 66 | 37 | 64 | 71 | 68 | 67 | 67 | 42 | 42 | 41 | 39 | 37 | 4 | 20 | 20 | 20 | 132 | 34 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNE 8 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 24 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 18 | 100 | 103 | 105 | 100 | 23 | 38 | 18 | 100 | 99 | 100 | 105 | 100 | 38 | 24 | 18 | 11 | 11 | 99 | 99 | 24 | 11 | 24 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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