
Surf Forecasts:
Anaehoomalu Bay_A-Bay surf forecast from 11 Aug 2026:
- Most powerful swell: Wednesday 12 Aug, 2PM (local time) - 1.5ft (0.4m), 13s period, WNW swell with 57 kJ wave energy.
Best Forecast Surf Conditions for Anaehoomalu Bay_A-Bay this week:
The most powerful waves expected at Anaehoomalu Bay_A-Bay in the next 16 days are 0.4m 13s and forecast to arrive on Wednesday (Aug 12) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 10s period and expected on Sunday (Aug 16) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Wed 12th Aug) | 1.5ft (0.4m) 13s |
Table - best surf conditions forecast for Anaehoomalu Bay_A-Bay over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down the next couple of weeks. Honestly, it’s a bit of a dry spell for most of it. The first week and a half is looking pretty grim, with hardly any surf worth mentioning. There’s a small window late in the period that’s the only thing to get excited about.
The best of the lot, and the only real standout, comes on the Wednesday afternoon of the 19th of August at Anaehoomalu Bay A-Bay (this is a reef and point setup). The swell is a tiny 1ft out of the WNW, but it’s got a 12-second period, so it’s got a little push. The combined swell energy is weak at 89, but the wind goes glassy, which is a game-changer for a wave this small. It’ll be clean, tiny, and probably fun on a longboard. Expect a crowd, because this spot is popular.
Before that, from Tuesday the 11th of August all the way through the morning of the 19th, it’s mostly poor surf. We’re looking at ankle-biters, 0.7ft to 1ft, with weak energy (usually under 50). The winds are mostly cross or cross-onshore, and the water temperature is about average for this time of year. The Thursday morning of the 20th of August has another glassy moment with a 1.0ft, 18-second groundswell from the SW, but that kind of long period on a small wave will just make it close out. The afternoon of the 21st of August also goes glassy, but again, only 1.0ft of SW swell. Tantalizing, but not enough.
From the 22nd of August onward, it gets worse. The 22nd and 23rd see tiny, short-period (8 seconds) swell with very weak energy (11 to 20). The 24th and 25th of August are flat, with zero combined energy. The 26th of August ends the run with a 0.3ft, 10-second swell and a combined energy of 3. Not worth the drive.
So, to wrap it up: the 19th of August afternoon is the one to target if you need a fix, but keep your expectations in check. Otherwise, it’s a long stretch of flat and small.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Mon night. Warm (max 28°C on Tue morning, min 25°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 14mm), heaviest on Sun morning. Warm (max 28°C on Fri morning, min 25°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 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) | W 10 | W 10 | W 12 | W 11 | SSW 13 | WNW 13 | SSW 16 | WNW 12 | W 12 | W 12 | W 11 | W 12 | W 12 | WNW 11 | W 11 | WNW 13 | WNW 13 | WNW 12 | WNW 12 |
Wave Graph | |||||||||||||||||||
18 | 8 | 25 | 23 | 0 | 33 | 0 | 28 | 25 | 25 | 10 | 24 | 11 | 24 | 22 | 34 | 53 | 49 | 46 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | glassy | cross-off | cross-on | cross-off | glassy | cross | cross | cross-off | cross | cross | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off |
High Tide | 2:37AM0.36m | 3:19PM0.90m | 3:24AM0.42m | 3:56PM0.88m | 4:09AM0.48m | 4:30PM0.83m | 4:54AM0.53m | 5:01PM0.75m | 5:39AM0.57m | 5:30PM0.66m | 6:25AM0.59m | 5:55PM0.57m | |||||||
Low Tide | 9:46PM0.12m | 8:06AM0.02m | 10:15PM0.10m | 8:56AM0.02m | 10:44PM0.08m | 9:44AM0.06m | 11:11PM0.08m | 10:32AM0.11m | 11:36PM0.08m | 11:20AM0.18m | 00:02AM0.08m | 12:11PM0.25m | 00:27AM0.10m | ||||||
— | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | |
6:54 | — | 6:53 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | |
mm | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 6 | 6 | 2 |
Temp °C | 27 | 28 | 28 | 26 | 28 | 28 | 26 | 28 | 28 | 26 | 28 | 28 | 26 | 27 | 27 | 26 | 26 | 26 | 27 |
Feels °C | 30 | 31 | 31 | 29 | 29 | 29 | 29 | 30 | 29 | 27 | 28 | 28 | 27 | 29 | 28 | 26 | 27 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | NNE 5 | NE 6 | NE 6 | NNE 5 | NE 5 | NE 6 | NE 6 | NNE 5 | NE 6 | SSW 14 | SSW 14 | SSW 14 | NE 8 | SSW 13 | ENE 11 | NNE 7 | WNW 13 | WNW 12 | NE 11 |
13 | 47 | 42 | 17 | 10 | 46 | 31 | 37 | 47 | 70 | 41 | 40 | 98 | 35 | 22 | 101 | 53 | 49 | 326 | |
Swell 2 Height (m) Direction Period (s) | W 10 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 16 | SSW 16 | SSW 15 | W 12 | NE 8 | W 12 | SSW 14 | WNW 11 | W 11 | ENE 10 | SSW 13 | S 13 | WNW 12 |
18 | 41 | 40 | 35 | 32 | 32 | 51 | 48 | 44 | 25 | 18 | 24 | 36 | 24 | 22 | 62 | 17 | 13 | 46 | |
Swell 3 Height (m) Direction Period (s) | NE 7 | W 10 | W 12 | W 11 | NE 7 | WNW 13 | SSW 13 | WNW 12 | W 12 | S 18 | W 11 | SW 17 | W 12 | W 15 | SSW 13 | WNW 13 | S 16 | S 16 | S 12 |
8 | 8 | 25 | 23 | 7 | 33 | 32 | 28 | 25 | 6 | 10 | 12 | 11 | 4 | 35 | 34 | 5 | 5 | 12 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | NE 5 | NNE 6 | NE 7 | — | NE 8 | NNE 9 | — | NE 10 | NE 10 | — |
— | — | — | — | — | — | — | — | — | 51 | 39 | 77 | — | 138 | 202 | — | 304 | 304 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 30 | 91 | 99 | 30 | 96 | 96 | 21 | 94 | 30 | 17 | 30 | 30 | 21 | 34 | 31 | 33 | 37 | 36 | 36 |
Best forecast wave conditions in Big Island | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Latest Updates
Information about the Anaehoomalu Bay_A-Bay Surf forecast
The above surf forecast table for Anaehoomalu Bay_A-Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Anaehoomalu Bay_A-Bay can be found by selecting the local surf guide option on the grey menu. Our Anaehoomalu Bay_A-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 (Anaehoomalu Bay_A-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 Anaehoomalu Bay_A-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.
Anaehoomalu Bay_A-Bay is 87 km (54 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.











