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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 Thursday 14 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
25.9° C
(Which is slightly warmer than usual)How big are the waves at Mahai'ula Bay today?
The current surf forecast for Mahai'ula Bay at 7AM is: 0.3m 16s primary swell from a Northwest direction and 0.2m 4s secondary swell from a South-southwest direction (forecast issued at 01:00am May 14). An open ocean swell of 0.7m 6s is not directed at the surf break, a second open ocean swell of 0.3m 12s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 May) | 1ft (0.3m) | 16s |
| Afternoon (14 May) | 1.5ft (0.4m) | 15s |
| Evening (14 May) | 1.5ft (0.5m) | 15s |
Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 27°C on Sat morning, min 24°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 14 | Friday 15 | Saturday 16 | ||||||||||||||||||||||
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 13 | S 13 | 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 | NW 12 | NW 12 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | |
0 | 0 | 42 | 41 | 59 | 77 | 76 | 102 | 93 | 113 | 87 | 84 | 82 | 75 | 52 | 51 | 50 | 49 | 83 | 0 | 0 | 0 | 73 | 73 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | glassy | on | on | glassy | cross-off | cross | glassy | glassy | glassy | cross-on | cross-on | on | glassy | glassy | glassy | glassy | glassy | cross-on | cross-on | on | cross-on | cross | |
High Tide | 1:26AM0.50m | 2:38PM0.82m | 2:12AM0.45m | 3:19PM0.90m | 2:58AM0.40m | 4:02PM0.94m | ||||||||||||||||||
Low Tide | 7:34AM0.01m | 9:17PM0.18m | 8:07AM-0.01m | 10:12PM0.15m | 8:43AM-0.03m | |||||||||||||||||||
 | |  | | | |  | | | |  | | | |  | | | | | | | | | | |
 | — | 5:48 | — | — | — | — | — | — | — | 5:48 | — | — | — | — | — | — | — | 5:48 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — |
1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 24 | 24 | 24 | 25 | 26 | 25 | 25 | 24 | 24 | 24 | 25 | 26 | 26 | 26 | 25 | 25 | 25 | 24 | 26 | 27 | 27 | 27 | 26 | 25 |
27 | 26 | 26 | 26 | 28 | 27 | 26 | 25 | 27 | 27 | 28 | 27 | 27 | 27 | 28 | 29 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 26 | |
Swell 1 Height (m) Direction Period (s) | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 8 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NE 8 | NE 8 |
 kJ | 42 | 33 | 34 | 36 | 54 | 56 | 50 | 40 | 41 | 28 | 32 | 35 | 42 | 43 | 42 | 32 | 32 | 29 | 37 | 39 | 40 | 39 | 28 | 28 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | S 13 | S 12 | S 12 | NW 15 | NW 15 | NW 15 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | SSE 11 | SSE 12 | SW 15 | SW 15 | SW 15 | SW 14 | SSW 17 | SSW 17 |
| kJ | 57 | 53 | 26 | 25 | 59 | 77 | 76 | 102 | 93 | 113 | 87 | 84 | 82 | 75 | 52 | 51 | 40 | 45 | 83 | 107 | 106 | 103 | 95 | 99 |
Swell 3 Height (m) Direction Period (s) | SSE 10 | S 4 | NW 16 | NW 16 | S 12 | S 12 | S 12 | S 12 | S 12 | SSW 16 | S 11 | SSW 16 | SW 16 | SW 16 | S 5 | S 11 | NW 12 | NW 12 | SSE 12 | SSE 12 | SSW 17 | SSW 17 | SW 14 | SW 14 |
| kJ | 22 | 3 | 42 | 41 | 25 | 25 | 25 | 45 | 44 | 103 | 40 | 100 | 124 | 124 | 4 | 37 | 50 | 49 | 46 | 47 | 93 | 92 | 73 | 73 |
Wind waves Height (m) Direction Period (s) | SSE 5 | — | SSW 4 | N 6 | WNW 2 | S 4 | S 3 | — | NNE 7 | N 7 | — | SSW 5 | WNW 2 | — | SW 2 | — | — | — | — | — | — | — | — | — |
| kJ | 7 | — | 1 | 19 | 1 | 1 | 2 | — | 15 | 24 | — | 3 | 1 | — | 1 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 11 | 19 | 1 | 100 | 100 | 0 | 0 | 38 | 0 | 0 | 0 | 100 | 99 | 99 | 1 | 1 | 1 | 1 | 0 | 99 | 100 | 100 | 15 | 38 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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