Surf Forecasts:
Waimanu Bay surf forecast from 10 Nov 2026:
- Best quality surf: Monday 23 Nov, 11AM (local time) - 7ft (2.1m), 13s period, NNW swell with glassy winds.
- Most powerful swell: Saturday 21 Nov, 8AM (local time) - 10ft (3.0m), 17s period, NNW swell with 5,123 kJ wave energy.
- Next surfable swell (1★+): Friday 20 Nov, 2AM (local time) - 4ft (1.2m), 8s period with E 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 Friday (Nov 20) at 2AM. The primary swell is predicted to be 1.2m and 8s period with a secondary swell of 0.7m and 12s. 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 17s and forecast to arrive on Saturday (Nov 21) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 16s period and expected on Sunday (Nov 15) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 20th Nov) | 4ft (1.2m) 8s |
| Best Surf | 11AM (Mon 23rd Nov) | 7ft (2.1m) 13s |
| Most Powerful | 8AM (Sat 21st Nov) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Waimanu Bay over the next 16 days.
Short Range ForecastSome drizzle, heaviest during Thu morning. Warm (max 26°C on Wed afternoon, min 23°C on Wed night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Sat morning, min 23°C on Fri night). Mainly fresh winds. | ||||||||||||||||||
Wednesday 11 | Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | ||||||||||||||
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) | NNW 12 | NNW 19 | NNW 16 | NNW 15 | NNW 15 | NNW 14 | NNW 13 | E 8 | ENE 8 | NNW 19 | NNW 16 | NNW 15 | NNW 13 | NNW 19 | NNW 16 | NNW 14 | N 14 | N 13 | N 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 347 | 367 | 2696 | 2419 | 1877 | 1548 | 1026 | 387 | 373 | 1169 | 939 | 795 | 340 | 1905 | 3093 | 1633 | 1754 | 1264 | 1057 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross |
High Tide | 4:14AM0.94m | 3:09PM0.47m | 4:50AM0.90m | 3:36PM0.45m | 5:29AM0.86m | 4:04PM0.43m | 6:11AM0.83m | 4:42PM0.40m | 6:57AM0.79m | 5:57PM0.38m | 7:47AM0.76m | 8:28PM0.39m | |||||||
Low Tide | 8:48PM0.06m | 11:07AM0.35m | 9:17PM0.08m | 11:52AM0.36m | 9:46PM0.11m | 12:47PM0.38m | 10:17PM0.15m | 1:56PM0.38m | 10:49PM0.20m | 3:12PM0.36m | 11:28PM0.27m | 4:03PM0.33m | 00:31AM0.35m | ||||||
 |  | | |  |  | | | | | | | | | |  | | | | |
 | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — |
 | 5:44 | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:42 | — | — | 5:42 | — | — | 5:42 | — |
mm | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 25 | 26 | 24 | 25 | 24 | 24 | 25 | 25 | 24 | 26 | 25 | 24 | 25 | 25 | 24 | 26 | 26 | 24 |
Feels °C | 22 | 21 | 22 | 20 | 22 | 21 | 20 | 23 | 23 | 22 | 24 | 23 | 21 | 22 | 22 | 21 | 24 | 24 | 20 |
Swell 1 Height (m) Direction Period (s) | NNW 12 | NNW 13 | NNW 16 | NNW 15 | NNW 15 | NNW 14 | NNW 13 | N 9 | N 9 | NNW 19 | NNW 16 | NNW 15 | NNW 13 | NNW 19 | NNW 16 | NNW 14 | N 14 | N 13 | N 13 |
| kJ | 347 | 307 | 2696 | 2419 | 1877 | 1548 | 1026 | 194 | 168 | 1169 | 939 | 795 | 331 | 1905 | 3093 | 1633 | 1754 | 1264 | 1057 |
Swell 2 Height (m) Direction Period (s) | NNE 11 | NNW 19 | NNE 10 | — | — | — | — | NW 13 | NW 12 | N 10 | NNW 13 | N 9 | N 17 | NNW 12 | N 12 | W 16 | W 15 | NE 9 | NE 9 |
| kJ | 40 | 367 | 10 | — | — | — | — | 230 | 154 | 154 | 269 | 57 | 53 | 202 | 68 | 5 | 4 | 186 | 262 |
Swell 3 Height (m) Direction Period (s) | W 15 | NNE 11 | NNE 10 | — | — | — | — | — | NNW 18 | N 20 | N 10 | — | NNW 23 | W 18 | — | — | — | W 15 | W 13 |
| kJ | 4 | 24 | 10 | — | — | — | — | — | 61 | 388 | 88 | — | 53 | 6 | — | — | — | 4 | 3 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 7 | ENE 7 | ENE 7 | E 8 | ENE 8 | E 8 | E 8 | ENE 8 | E 8 | E 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | E 7 | E 8 | E 8 | ESE 8 |
| kJ | 234 | 259 | 284 | 252 | 253 | 336 | 341 | 387 | 373 | 365 | 346 | 316 | 340 | 345 | 335 | 312 | 466 | 441 | 262 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 37 | 81 | 66 | 24 | 54 | 24 | 24 | 58 | 69 | 29 | 54 | 37 | 29 | 58 | 37 | 29 | 58 | 58 | 69 |
Best forecast wave conditions in Big Island | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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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