Surf Forecasts:
Waipio Bay surf forecast from 19 Aug 2026:
- Best quality surf: Thursday 20 Aug, 2AM (local time) - 3ft (0.9m), 8s period, E swell with glassy winds.
- Most powerful swell: Sunday 23 Aug, 5PM (local time) - 10ft (3.0m), 12s period, E swell with 2,499 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 2AM (local time) - 3ft (0.9m), 8s period with E swell.
Best Forecast Surf Conditions for Waipio Bay this week:
The surf forecast for Waipio Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 2AM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.7m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Waipio Bay in the next 16 days are 3.0m 12s and forecast to arrive on Sunday (Aug 23) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 10s period and expected on Friday (Aug 21) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 20th Aug) | 3ft (0.9m) 8s |
| Best Surf | 2AM (Thu 20th Aug) | 3ft (0.9m) 8s |
| Most Powerful | 5PM (Sun 23rd Aug) | 10ft (3.0m) 12s |
Table - best surf conditions forecast for Waipio Bay over the next 16 days.
Short Range ForecastLight rain (total 2mm), mostly falling on Fri afternoon. Warm (max 28°C on Fri morning, min 25°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 56mm), heaviest during Sun afternoon. Warm (max 28°C on Sat morning, min 25°C on Sat night). Winds decreasing (near gales from the ENE on Sun night, light winds from the ESE by Mon night). | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
AM | 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 8 | ENE 8 | E 8 | E 7 | NNE 7 | NE 7 | ENE 5 | E 6 | E 7 | E 8 | E 9 | E 12 | E 13 | E 12 | E 10 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 197 | 187 | 90 | 70 | 59 | 67 | 118 | 169 | 187 | 318 | 425 | 1207 | 2282 | 2499 | 1695 | 1218 | 982 | 597 | 516 | 412 | 302 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 8:53AM0.66m | 10:43AM0.69m | 11:52AM0.74m | 12:36PM0.79m | 11:16PM0.41m | 1:09PM0.83m | 00:13AM0.45m | 1:38PM0.87m | 00:55AM0.50m | 2:04PM0.90m | 1:32AM0.55m | ||||||||||
Low Tide | 1:35AM0.23m | 2:58AM0.24m | 4:24AM0.22m | 8:02PM0.38m | 5:27AM0.18m | 8:07PM0.35m | 6:14AM0.13m | 8:22PM0.32m | 6:54AM0.10m | 8:39PM0.29m | |||||||||||
 |  |  |  | | | |  |  | | |  |  | |  |  | | | | | | |
 | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — |
 | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:43 | — |
mm | — | — | — | — | — | — | — | 2 | — | — | — | 2 | 10 | 19 | 24 | 1 | — | — | — | 2 | 1 |
Temp °C | 27 | 27 | 26 | 27 | 27 | 26 | 28 | 28 | 27 | 28 | 28 | 26 | 26 | 26 | 26 | 26 | 28 | 27 | 28 | 27 | 27 |
Feels °C | 30 | 30 | 29 | 30 | 31 | 30 | 29 | 29 | 28 | 27 | 26 | 24 | 23 | 22 | 20 | 27 | 29 | 27 | 30 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NNE 6 | E 8 | E 7 | NNE 7 | NE 7 | W 11 | W 10 | WNW 11 | WNW 10 | SE 12 | WNW 10 | WNW 10 | WNW 11 | WNW 11 | NW 12 | NW 11 | NW 11 | W 12 | W 13 | W 13 |
| kJ | 9 | 14 | 90 | 70 | 59 | 67 | 35 | 32 | 37 | 20 | 40 | 34 | 18 | 23 | 13 | 5 | 5 | 5 | 3 | 3 | 13 |
Swell 2 Height (m) Direction Period (s) | W 12 | W 12 | NNE 6 | NNE 7 | E 7 | E 8 | N 8 | N 8 | W 9 | SE 12 | SE 11 | — | E 16 | — | W 9 | W 9 | W 9 | W 13 | NW 10 | NW 10 | W 16 |
| kJ | 25 | 25 | 32 | 47 | 48 | 34 | 1 | 1 | 2 | 39 | 30 | — | 20 | — | 2 | 2 | 2 | 3 | 4 | 4 | 5 |
Swell 3 Height (m) Direction Period (s) | W 6 | W 7 | W 11 | NE 7 | W 11 | W 11 | — | — | W 11 | W 10 | WNW 10 | — | S 13 | — | — | W 9 | W 9 | W 9 | W 9 | W 17 | N 8 |
| kJ | 1 | 1 | 10 | 7 | 9 | 21 | — | — | 2 | 2 | 20 | — | 3 | — | — | 2 | 2 | 2 | 2 | 6 | 1 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | — | — | — | E 2 | ENE 5 | E 6 | E 7 | E 8 | E 9 | E 12 | E 13 | E 12 | E 10 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 |
| kJ | 197 | 187 | — | — | — | 1 | 118 | 169 | 187 | 318 | 425 | 1207 | 2282 | 2499 | 1695 | 1218 | 982 | 597 | 516 | 412 | 302 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 55 | 71 | 70 | 0 | 29 | 29 | 1 | 28 | 28 | 28 | 28 | 28 | 28 | 61 | 61 | 61 | 68 | 68 | 65 | 68 | 68 |
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 Waipio 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 Waipio Bay Surf forecast
The above surf forecast table for Waipio Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Waipio Bay can be found by selecting the local surf guide option on the grey menu. Our Waipio 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 (Waipio 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 Waipio 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.
Waipio Bay is 68 km (42 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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