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Waimanu Bay Surf Forecast
/ HAW – Big Island (60 breaks) / Hawaii (267 breaks) /
Waimanu Bay surfForecast / HAW – Big Island / USA
12 Day Weather and Surf, issued 7 am Tuesday 15 Jul 2025 HST
Best Forecast Surf Conditions for Waimanu Bay this week:
The most powerful waves expected at Waimanu Bay in the next 12 days are 1.9m 8s and forecast to arrive on Saturday (Jul 19) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 12s period and expected on Wednesday (Jul 16) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Sat 19th Jul) | 6ft (1.9m) 8s |
Table - best surf conditions forecast for Waimanu Bay over the next 12 days.
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | |||||||||||||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 7 | 8 | 8 | 9 | 9 | 9 | 8 | 8 | 6 | 6 | 9 | 7 | 6 | 9 | 7 | 6 | 6 | 6 | 6 | 8 | 8 | 6 | 8 | 9 | 9 | 9 | 9 | 5 | 5 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 278 | 259 | 255 | 296 | 297 | 276 | 205 | 245 | 216 | 348 | 444 | 319 | 464 | 451 | 204 | 198 | 294 | 277 | 317 | 257 | 265 | 447 | 390 | 317 | 418 | 380 | 441 | 483 | 241 | 303 | 241 | 262 | 124 | 138 | 76 | 66 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross | cross- on | cross- on | cross | cross- on | cross- on | cross | cross- on | cross- on | cross | cross- on | cross- on | cross | cross- on | cross- on | cross | cross- on | cross- on | cross | cross- on | cross- on | cross | cross- on | cross- on | cross | cross- on | cross- on | cross | cross- on | cross- on | cross | cross- on | cross | cross |
High Tide / height (m) | 6:06PM 0.82 | 7:17AM 0.56 | 6:36PM 0.74 | 8:56AM 0.62 | 7:09PM 0.65 | 10:36AM 0.71 | 7:52PM 0.56 | 11:50AM 0.81 | 9:14PM 0.49 | 12:45PM 0.90 | 10:59PM 0.45 | 1:32PM 0.97 | 12:16AM 0.45 | 2:13PM 1.01 | 1:13AM 0.47 | 2:52PM 1.03 | 2:01AM 0.49 | 3:27PM 1.03 | 2:45AM 0.52 | 4:00PM 1.00 | 3:28AM 0.54 | 4:29PM 0.95 | 4:11AM 0.55 | |||||||||||||
Low Tide / height (m) | 11:17AM 0.27 | 1:08AM 0.21 | 12:16PM 0.39 | 1:51AM 0.19 | 1:52PM 0.49 | 2:41AM 0.16 | 4:39PM 0.53 | 3:39AM 0.13 | 7:02PM 0.47 | 4:41AM 0.10 | 8:01PM 0.41 | 5:39AM 0.06 | 8:38PM 0.36 | 6:33AM 0.02 | 9:10PM 0.33 | 7:20AM -0.01 | 9:41PM 0.30 | 8:04AM -0.01 | 10:11PM 0.29 | 8:44AM 0.01 | 10:40PM 0.27 | 9:22AM 0.06 | 11:08PM 0.26 | |||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | |||||||||||||||||||||||||
| Sunrise | 5:50 | - | - | 5:50 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:54 | - | - | 5:54 | - | - | 5:54 | - | - | 5:54 | - | - | 5:54 | - | - |
| Sunset | - | 7:05 | - | - | 7:05 | - | - | 7:05 | - | - | 7:04 | - | - | 7:04 | - | - | 7:04 | - | - | 7:04 | - | - | 7:02 | - | - | 7:02 | - | - | 7:02 | - | - | 7:01 | - | - | 7:01 | - |
 | |  | | | |  | | | | |  | | | | | | | | | |  | | | | | | | | | | | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - |
| Temp. °C | 27 | 27 | 25 | 26 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 26 | 26 | 25 | 26 | 26 | 25 |
| Feels °C (?) | 27 | 27 | 24 | 25 | 25 | 24 | 27 | 27 | 25 | 26 | 27 | 25 | 27 | 27 | 26 | 27 | 27 | 25 | 26 | 26 | 25 | 26 | 26 | 24 | 26 | 26 | 24 | 25 | 26 | 25 | 26 | 26 | 26 | 27 | 27 | 27 |
Short Range Forecast: Mostly dry. Warm (max 27°C on Tue morning, min 24°C on Tue night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 27°C on Fri morning, min 24°C on Fri night). Wind will be generally light. | Days 6-9 Weather Summary Mostly dry. Warm (max 27°C on Mon morning, min 24°C on Mon night). Wind will be generally light. | Long Range Forecast: Some drizzle, heaviest during Sat afternoon. Warm (max 27°C on Thu morning, min 24°C on Thu night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for HAW - Big Island
The cross-on wind has turned onshore at Waimanu Bay (light winds from the NNE at Kapulena wx 12 km from Waimanu Bay). 1.3m 7s swell from the ENE with a 1.3m 7s swell from the ENE and a 0.6m 10s swell from the NE as well as a 0.4m 10s swell, also from the NE. Swells combining to make to make bigger set waves.
2 h 31 min ago
FREE! Surf-Forecast.com widget for your website
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 12 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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