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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 27 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)How big are the waves at Mahai'ula Bay today (27 May):
- Morning surf: Morning surf (27 May, local time) - 1.5ft (0.5m), 16s period with NW swell.
- Afternoon surf: Afternoon surf (27 May, local time) - 2ft (0.6m), 15s period with NW swell.
- Evening surf: Evening surf (27 May, local time) - 2ft (0.6m), 14s period with NW swell.
The current surf forecast for Mahai'ula Bay at 9AM is: 0.5m 16s primary swell from a Northwest direction (forecast issued at 01:00am May 27). An open ocean swell of 0.7m 7s is not directed at the surf break, a second open ocean swell of 0.6m 14s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 May) | 1.5ft (0.5m) | 16s |
| Afternoon (27 May) | 2ft (0.6m) | 15s |
| Evening (27 May) | 2ft (0.6m) | 14s |
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 night. Warm (max 26°C on Wed morning, min 23°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 27 | Thursday 28 | Friday 29 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
NW 17 | NW 16 | NW 16 | NW 15 | NW 15 | NW 14 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | S 22 | S 21 | N 12 | S 20 | S 20 | S 20 | S 19 | S 19 | S 18 | S 18 | |
97 | 127 | 125 | 178 | 174 | 169 | 162 | 151 | 142 | 140 | 138 | 80 | 73 | 72 | 0 | 0 | 105 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | glassy | cross | cross-on | cross | glassy | glassy | glassy | cross-off | glassy | cross-on | cross-on | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | cross-on | cross | cross | cross-off | |
High Tide | 00:44AM0.44m | 2:08PM0.74m | 1:29AM0.40m | 2:40PM0.78m | 2:11AM0.37m | 3:13PM0.81m | ||||||||||||||||||
Low Tide | 6:54AM0.08m | 8:53PM0.24m | 7:22AM0.07m | 9:38PM0.21m | 7:52AM0.07m | 10:18PM0.19m | ||||||||||||||||||
 |  |  | |  | |  | | | | | | | | | | | | | | | | | | |
 | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:57 | — | — | — | — | — | — | — | 6:57 | — | — | — | — | — | — | — | 6:58 | — | — |
1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | |
Temp °C | 24 | 24 | 25 | 26 | 25 | 24 | 25 | 24 | 23 | 24 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 24 |
26 | 25 | 26 | 27 | 26 | 26 | 27 | 25 | 24 | 25 | 25 | 26 | 26 | 28 | 28 | 26 | 27 | 26 | 26 | 27 | 26 | 26 | 27 | 26 | |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 6 | NNE 6 | NNE 6 | S 21 | S 20 | S 20 | S 20 | S 19 | S 19 | S 18 | S 18 |
 kJ | 90 | 66 | 42 | 42 | 59 | 56 | 57 | 57 | 41 | 44 | 42 | 41 | 38 | 52 | 49 | 44 | 436 | 525 | 624 | 775 | 760 | 876 | 803 | 646 |
Swell 2 Height (m) Direction Period (s) | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | NW 14 | NW 14 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 21 | NNE 6 | NNE 8 | NNE 8 | NNE 11 | NNE 8 | NNE 8 | NNE 8 | NNE 8 |
| kJ | 146 | 144 | 140 | 131 | 173 | 170 | 162 | 151 | 116 | 107 | 105 | 103 | 103 | 102 | 98 | 449 | 24 | 40 | 42 | 101 | 52 | 80 | 80 | 84 |
Swell 3 Height (m) Direction Period (s) | NW 17 | NW 16 | NW 16 | NW 15 | NW 15 | NW 14 | S 13 | S 13 | NW 13 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | S 22 | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 |
| kJ | 97 | 127 | 125 | 178 | 174 | 169 | 123 | 119 | 142 | 140 | 138 | 80 | 73 | 72 | 236 | 95 | 64 | 61 | 61 | 60 | 60 | 39 | 37 | 64 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | N 7 | — | — | SSE 6 | SSE 6 | — | — | — | N 12 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 32 | — | — | 7 | 7 | — | — | — | 105 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 100 | 100 | 100 | 0 | 0 | 0 | 0 | 0 | 100 | 103 | 0 | 18 | 18 | 0 | 18 | 22 | 100 | 105 | 100 | 24 | 1 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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