Surf Forecasts:
Mahai'ula Bay surf forecast from 9 Jun 2026:
- Best quality surf: Tuesday 9 Jun, 11PM (local time) - 1.5ft (0.4m), 13s period, WNW swell with cross-offshore winds.
- Most powerful swell: Monday 15 Jun, 11AM (local time) - 2ft (0.6m), 12s period, N swell with 104 kJ wave energy.
- Next surfable swell (1★+): Tuesday 9 Jun, 11PM (local time) - 1.5ft (0.4m), 13s period with WNW swell.
Best Forecast Surf Conditions for Mahai'ula Bay this week:
The surf forecast for Mahai'ula Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Jun 09) at 11PM. The primary swell is predicted to be 0.4m and 13s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Mahai'ula Bay in the next 16 days are 0.6m 12s and forecast to arrive on Monday (Jun 15) at 11AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 17s period and expected on Monday (Jun 15) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 9th Jun) | 1.5ft (0.4m) 13s |
| Best Surf | 11PM (Tue 9th Jun) | 1.5ft (0.4m) 13s |
| Most Powerful | 11AM (Mon 15th Jun) | 2ft (0.6m) 12s |
Table - best surf conditions forecast for Mahai'ula Bay over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 4mm), mostly falling on Tue night. Warm (max 26°C on Tue morning, min 24°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Thu night. Warm (max 26°C on Sun afternoon, min 23°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 9 | Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Mon 15 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | N 5 | S 16 | S 15 | S 15 | N 4 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | S 16 | WNW 10 | WNW 10 | NNW 10 | SSW 22 | SSW 21 | WNW 9 | NNW 8 | N 13 | SSW 17 | N 12 | SSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 14 | 0 | 0 | 0 | 6 | 56 | 50 | 47 | 46 | 0 | 32 | 18 | 37 | 0 | 0 | 16 | 13 | 87 | 0 | 104 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | on | cross | on | cross | cross-on | glassy | cross-on | cross-on | on | on | glassy | cross-on | cross-on | on | glassy | cross | cross-on | glassy | cross-on |
High Tide | 9:44PM0.55m | 12:01PM0.58m | 10:43PM0.49m | 12:49PM0.69m | 11:47PM0.43m | 1:34PM0.79m | 00:49AM0.38m | 2:20PM0.88m | 1:49AM0.35m | 3:06PM0.93m | 2:45AM0.33m | 3:52PM0.97m | 3:38AM0.32m | 4:39PM0.97m | |||||||
Low Tide | 4:51AM0.10m | 5:51PM0.34m | 5:28AM0.07m | 7:20PM0.30m | 6:07AM0.04m | 8:29PM0.24m | 6:49AM0.01m | 9:27PM0.19m | 7:34AM-0.02m | 10:20PM0.14m | 8:20AM-0.03m | 11:09PM0.12m | 9:07AM-0.03m | ||||||||
 |  |  |  | | | | | | |  | | | | | | | |  | | | |
 | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — |
 | 7:01 | — | 7:01 | — | — | 7:01 | — | — | 7:02 | — | — | 7:02 | — | — | 7:02 | — | — | 7:04 | — | — | 7:04 |
mm | — | — | — | 1 | — | — | 3 | — | — | 1 | 1 | — | 1 | 1 | — | 4 | — | — | — | — | 1 |
Temp °C | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 24 | 25 | 25 | 25 | 25 | 24 | 25 | 26 | 26 | 26 | 26 |
Feels °C | 28 | 28 | 28 | 27 | 29 | 28 | 27 | 29 | 29 | 27 | 27 | 27 | 29 | 27 | 27 | 26 | 27 | 28 | 27 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NNE 6 | NE 7 | NE 6 | NE 8 | NE 5 | NNE 5 | NNE 4 | NNE 4 | S 16 | S 15 | S 15 | SSW 24 | SSW 22 | SSW 21 | SSW 20 | SSW 19 | SSW 18 | SSW 17 | SSW 16 | SSW 16 |
| kJ | 47 | 37 | 44 | 38 | 28 | 30 | 17 | 7 | 11 | 183 | 109 | 208 | 433 | 622 | 801 | 969 | 1133 | 1038 | 1267 | 803 | 763 |
Swell 2 Height (m) Direction Period (s) | S 16 | S 16 | S 15 | S 11 | S 14 | WNW 12 | WNW 11 | S 18 | S 17 | S 12 | WNW 10 | SW 20 | NNW 10 | S 13 | S 13 | S 12 | S 12 | SSE 12 | SE 12 | SSE 12 | NNE 5 |
| kJ | 188 | 118 | 106 | 58 | 59 | 56 | 50 | 154 | 94 | 71 | 32 | 97 | 37 | 88 | 127 | 75 | 74 | 83 | 69 | 46 | 26 |
Swell 3 Height (m) Direction Period (s) | S 12 | S 11 | S 11 | S 15 | S 10 | S 13 | S 13 | WNW 11 | WNW 11 | NE 4 | SW 20 | WNW 10 | S 14 | SW 18 | SW 18 | SW 17 | NNW 8 | N 13 | NE 6 | E 17 | S 11 |
| kJ | 100 | 63 | 58 | 67 | 34 | 55 | 55 | 47 | 46 | 10 | 97 | 18 | 102 | 155 | 150 | 137 | 13 | 87 | 8 | 23 | 22 |
Wind waves Height (m) Direction Period (s) | N 5 | SSE 5 | N 6 | SSE 5 | N 4 | — | — | — | — | SSE 3 | — | — | — | — | — | WNW 9 | — | — | — | N 12 | — |
| kJ | 14 | 6 | 20 | 6 | 6 | — | — | — | — | 3 | — | — | — | — | — | 16 | — | — | — | 104 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 18 | 100 | 105 | 18 | 100 | 100 | 19 | 99 | 100 | 18 | 99 | 99 | 11 | 99 | 100 | 99 | 34 | 24 | 19 | 0 | 32 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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.
Information about the Mahai'ula Bay Surf forecast
The above surf forecast table for Mahai'ula Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mahai'ula Bay can be found by selecting the local surf guide option on the grey menu. Our Mahai'ula Bay surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Mahai'ula Bay) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Mahai'ula Bay may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Mahai'ula Bay is 100 km (62 miles) from Hilo. If you plan a vacation in Big Island, look for hotels and other accommodation in Hilo. Hilo has rooms for a wide range of budgets as well as car hire and transport links.
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