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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 Wednesday 13 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
25.8° C
(Which is slightly warmer than usual)| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 May) | - | - |
| Afternoon (13 May) | 1ft (0.3m) | 15s |
| Evening (13 May) | - | - |
Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Fri afternoon. Warm (max 26°C on Wed afternoon, min 24°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 13 | Thursday 14 | Friday 15 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
SSW 15 | SSW 14 | S 14 | SSW 14 | SW 15 | NNE 6 | NNE 6 | SW 15 | SW 14 | SW 14 | NW 16 | NW 16 | NW 15 | NW 15 | NW 15 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | |
0 | 0 | 0 | 0 | 34 | 0 | 0 | 33 | 33 | 33 | 42 | 41 | 59 | 77 | 76 | 102 | 93 | 88 | 87 | 84 | 82 | 75 | 52 | 51 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | glassy | cross-on | glassy | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | cross | cross | cross | glassy | cross-on | cross | cross | cross-on | cross-on | cross-on | on | glassy | |
High Tide | 00:39AM0.54m | 1:59PM0.73m | 1:26AM0.50m | 2:38PM0.82m | 2:12AM0.45m | 3:19PM0.90m | ||||||||||||||||||
Low Tide | 7:03AM0.05m | 8:19PM0.22m | 7:34AM0.01m | 9:17PM0.18m | 8:07AM-0.01m | 10:12PM0.15m | ||||||||||||||||||
 |  |  | |  | | | | | | | | | | | | | | | |  | | | | |
 | — | 5:48 | — | — | — | — | — | — | — | 5:48 | — | — | — | — | — | — | — | 5:48 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:51 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | |
Temp °C | 24 | 24 | 24 | 25 | 25 | 26 | 25 | 24 | 24 | 24 | 25 | 25 | 25 | 26 | 25 | 25 | 24 | 24 | 25 | 26 | 26 | 26 | 25 | 25 |
26 | 27 | 27 | 27 | 27 | 29 | 28 | 27 | 28 | 28 | 27 | 26 | 27 | 27 | 27 | 28 | 26 | 26 | 27 | 27 | 27 | 28 | 28 | 29 | |
Swell 1 Height (m) Direction Period (s) | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NW 13 | NNE 8 | NW 13 | NNE 7 | NNE 7 | NNE 7 | NNE 7 |
 kJ | 40 | 32 | 32 | 32 | 33 | 44 | 42 | 33 | 33 | 33 | 34 | 35 | 56 | 56 | 50 | 40 | 31 | 88 | 34 | 84 | 33 | 31 | 40 | 40 |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SSW 14 | S 14 | SSW 14 | SSW 14 | S 13 | SSW 13 | S 13 | SSW 13 | S 13 | S 12 | S 12 | NW 15 | NW 15 | NW 15 | NW 14 | NW 14 | NNE 7 | NW 13 | NNE 7 | NW 13 | NW 12 | NW 12 | NW 12 |
| kJ | 71 | 70 | 106 | 40 | 62 | 31 | 35 | 30 | 57 | 53 | 26 | 26 | 59 | 77 | 76 | 102 | 93 | 26 | 87 | 21 | 82 | 75 | 52 | 51 |
Swell 3 Height (m) Direction Period (s) | S 15 | S 14 | S 4 | S 14 | SW 15 | SSW 13 | S 13 | SW 15 | SW 14 | SW 14 | NW 16 | NW 16 | S 12 | S 12 | S 12 | S 12 | S 12 | SSW 16 | SW 16 | SW 16 | SSW 16 | SW 16 | SSE 11 | SSE 11 |
| kJ | 38 | 37 | 2 | 32 | 34 | 35 | 31 | 33 | 33 | 33 | 42 | 41 | 25 | 25 | 25 | 45 | 44 | 103 | 64 | 65 | 99 | 124 | 39 | 40 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | WSW 2 | — | — | — | — | — | — | — | — | S 5 | SSE 10 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 1 | — | — | — | — | — | — | — | — | 2 | 9 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 15 | 11 | 38 | 100 | 1 | 11 | 11 | 18 | 11 | 18 | 1 | 100 | 19 | 24 | 21 | 0 | 19 | 19 | 38 | 103 | 101 | 101 | 26 | 1 |
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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