Surf Forecasts:
Waimanu Bay surf forecast from 24 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 5AM (local time) - 8ft (2.4m), 10s period, NE swell with glassy winds.
- Most powerful swell: Tuesday 28 Jul, 11PM (local time) - 10ft (3.0m), 11s period, ENE swell with 1,832 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 5AM (local time) - 8ft (2.4m), 10s period with NE swell.
Best Forecast Surf Conditions for Waimanu Bay this week:
The surf forecast for Waimanu Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 29) at 5AM. The primary swell is predicted to be 2.4m and 10s period with a secondary swell of 0.1m and 9s. Another secondary swell of 0.2m and 9s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Waimanu Bay in the next 16 days are 3.0m 11s and forecast to arrive on Tuesday (Jul 28) at 11PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Wednesday (Jul 29) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 29th Jul) | 8ft (2.4m) 10s |
| Best Surf | 5AM (Wed 29th Jul) | 8ft (2.4m) 10s |
| Most Powerful | 11PM (Tue 28th Jul) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Waimanu Bay over the next 16 days.
Short Range ForecastSome drizzle, heaviest during Thu night. Warm (max 27°C on Thu afternoon, min 24°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 9mm), mostly falling on Sun night. Warm (max 28°C on Wed morning, min 24°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | ENE 6 | ENE 7 | E 7 | ENE 7 | ENE 8 | NE 8 | NE 8 | NE 8 | E 14 | E 14 | E 14 | E 13 | E 13 | E 13 | E 13 | ENE 12 | ENE 11 | ENE 9 | E 8 | ENE 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 225 | 163 | 176 | 279 | 270 | 291 | 353 | 335 | 492 | 569 | 515 | 865 | 826 | 835 | 1189 | 1413 | 1724 | 942 | 576 | 460 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross | cross |
High Tide | 1:05PM0.82m | 11:14PM0.43m | 1:39PM0.86m | 00:17AM0.44m | 2:09PM0.90m | 1:02AM0.46m | 2:39PM0.93m | 1:40AM0.49m | 3:06PM0.95m | 2:17AM0.52m | 3:33PM0.95m | 2:54AM0.54m | ||||||||
Low Tide | 4:57AM0.17m | 8:29PM0.40m | 5:49AM0.14m | 8:42PM0.37m | 6:33AM0.10m | 9:01PM0.35m | 7:11AM0.06m | 9:23PM0.33m | 7:46AM0.04m | 9:46PM0.31m | 8:20AM0.04m | 10:09PM0.29m | ||||||||
 |  | |  |  | | |  | | | |  | | | |  | | | |  | |
 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — |
 | 7:02 | — | — | 7:02 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — |
mm | — | 1 | — | — | — | — | — | — | — | — | 1 | 1 | — | — | 2 | 2 | 3 | — | 5 | 2 |
Temp °C | 27 | 25 | 27 | 27 | 25 | 26 | 26 | 25 | 26 | 27 | 25 | 26 | 26 | 25 | 26 | 27 | 26 | 28 | 27 | 27 |
Feels °C | 26 | 24 | 25 | 26 | 24 | 25 | 25 | 24 | 26 | 27 | 25 | 26 | 26 | 25 | 29 | 30 | 29 | 32 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | NNW 10 | E 10 | NNE 7 | E 16 | E 14 | E 13 | E 13 | E 14 | NE 8 | NE 8 | NE 7 | E 13 | E 13 | E 13 | E 13 | ENE 12 | ENE 11 | ENE 9 | N 12 | N 11 |
| kJ | 10 | 50 | 59 | 77 | 100 | 84 | 80 | 202 | 182 | 223 | 237 | 865 | 826 | 835 | 1189 | 1413 | 1724 | 942 | 3 | 2 |
Swell 2 Height (m) Direction Period (s) | SE 14 | NNW 10 | ENE 10 | NNW 9 | NNW 8 | N 8 | E 16 | E 12 | E 14 | E 14 | E 14 | NE 7 | NNE 7 | NNE 10 | NNE 8 | NNE 8 | SE 9 | — | N 12 | W 9 |
| kJ | 8 | 9 | 31 | 8 | 7 | 1 | 77 | 44 | 492 | 569 | 515 | 147 | 146 | 226 | 173 | 243 | 3 | — | 3 | 2 |
Swell 3 Height (m) Direction Period (s) | W 10 | E 18 | E 16 | W 10 | S 13 | W 9 | — | S 12 | SE 12 | — | — | — | — | — | — | — | — | — | S 13 | — |
| kJ | 2 | 6 | 21 | 2 | 3 | 2 | — | 3 | 5 | — | — | — | — | — | — | — | — | — | 3 | — |
Wind waves Height (m) Direction Period (s) | ENE 6 | ENE 7 | E 7 | ENE 7 | ENE 8 | NE 8 | NE 8 | NE 8 | E 7 | — | — | — | — | — | — | — | — | SE 9 | E 8 | ENE 8 |
| kJ | 225 | 163 | 176 | 279 | 270 | 291 | 353 | 335 | 104 | — | — | — | — | — | — | — | — | 3 | 576 | 460 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 77 | 68 | 77 | 24 | 69 | 77 | 58 | 58 | 98 | 58 | 69 | 77 | 98 | 60 | 69 | 69 | 6 | 12 | 15 | 71 |
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 Waimanu 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 Waimanu Bay Surf forecast
The above surf forecast table for Waimanu Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Waimanu Bay can be found by selecting the local surf guide option on the grey menu. Our Waimanu 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 (Waimanu 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 Waimanu 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.
Waimanu Bay is 74 km (46 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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