Surf Forecasts:
Anaehoomalu Bay_A-Bay surf forecast from 24 Aug 2026:
- Most powerful swell: Sunday 30 Aug, 5AM (local time) - 1ft (0.3m), 16s period, SW swell with 43 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 0.3m 16s and forecast to arrive on Sunday (Aug 30) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 8s period and expected on Monday (Aug 31) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Sun 30th Aug) | 1ft (0.3m) 16s |
Table - best surf conditions forecast for Anaehoomalu Bay_A-Bay over the next 16 days.
The Lowdown
Alright folks, let’s get into it. I’ve had a good look at what’s coming our way for the next couple of weeks, and I gotta be straight with you—it’s a tough stretch here at Anaehoomalu Bay, A-Bay. We’re talking about a solid run of flat or tiny, weak surf that barely gets a pulse, so you’re gonna need a lot of patience. The water temp is sitting at 82°, which is a touch warmer than usual for this time of year, so at least it’ll feel nice just floating around.
The first sign of anything rideable doesn’t show up until Monday the 31st of August. Monday morning we get a tiny bump of 1ft from the SW with a period of 15 seconds. It’s a really long period groundswell, which means the energy is there but the sets will be spread out. The wind is a light cross-onshore from the NNW at 3 mph, creating small ripples. Combined wave energy is low at (42), so it’s more of a novelty wave than something to get excited about. That afternoon settles to glassy conditions with the swell dropping to just 0.7ft from the W. Not exactly firing.
After that, we hit another flat spell until the morning of Sunday the 6th of September. That morning shows a little 1ft push from the SW again, with a very long 18-second period. The wind is light onshore from the NW at 6 mph, which isn’t ideal for the reef-and-point setup here. Combined energy is weak (49). The swell builds slightly from there.
The best we’ve got in the whole window lands on Tuesday the 8th of September. The afternoon sees the biggest bump of the period: 1ft from the NW with a 16-second period, delivering moderate combined wave energy at (112). The wind goes glassy from the NNW at 3 mph, and the conditions are described as surfable but very ordinary. For A-Bay, that’s the standout—clean, glassy conditions on a long-period NW groundswell. Keep in mind, that long period can make this reef-and-point break a bit tricky, with waves standing up fast, but when it’s glassy like that, it’s your best shot. Crowds are possible here sometimes, so don’t expect to have it to yourself.
Everything else in between is flat or a complete write-off with poor surf conditions and zero energy. A-Bay is usually fairly consistent, so a run like this is a bit of a bummer, but it won’t last forever. Keep an eye on the forecasts, things can change. For now, bring a book.
Rusty
Short Range ForecastLight rain (total 4mm), mostly falling on Mon afternoon. Warm (max 29°C on Mon morning, min 25°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Fri morning, min 25°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | |||||||||||||||
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) | WNW 12 | NW 11 | NW 10 | NE 6 | NE 6 | NE 5 | NNE 5 | NE 6 | W 10 | W 10 | SSW 15 | W 9 | SSW 14 | NE 6 | W 10 | SSW 13 | NE 6 | NNE 6 | W 12 | NNE 7 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 13 | 5 | 4 | 0 | 0 | 0 | 0 | 0 | 8 | 8 | 0 | 7 | 0 | 0 | 7 | 0 | 0 | 0 | 11 | 0 | 35 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | glassy | cross | glassy | cross-off | cross | glassy | cross-off | cross-on | glassy | cross-off | on | glassy | cross-off | cross | cross-off | cross-off | cross-on | cross | glassy |
High Tide | 2:12PM0.75m | 2:09AM0.36m | 2:42PM0.78m | 2:44AM0.41m | 3:11PM0.79m | 3:18AM0.46m | 3:38PM0.77m | 3:53AM0.51m | 4:04PM0.74m | 4:30AM0.57m | 4:30PM0.69m | 5:09AM0.61m | 4:57PM0.62m | ||||||||
Low Tide | 9:18PM0.17m | 7:33AM0.09m | 9:36PM0.14m | 8:14AM0.08m | 9:55PM0.12m | 8:54AM0.08m | 10:14PM0.11m | 9:34AM0.10m | 10:34PM0.09m | 10:16AM0.14m | 10:56PM0.08m | 11:01AM0.18m | 11:19PM0.07m | ||||||||
 |  |  | | |  | | |  | | | | | | | | | | | | | |
 | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — |
 | — | 6:45 | — | — | 6:44 | — | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — |
mm | — | 2 | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 29 | 28 | 29 | 29 | 26 | 27 | 28 | 26 | 27 | 27 | 26 | 28 | 28 | 26 | 27 | 27 | 26 | 28 | 29 | 27 |
Feels °C | 33 | 34 | 33 | 31 | 32 | 30 | 28 | 30 | 29 | 29 | 29 | 29 | 30 | 31 | 29 | 29 | 30 | 29 | 29 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | NE 6 | NE 7 | NE 6 | NE 6 | NE 6 | SSW 14 | NNE 5 | NE 6 | SSW 13 | NNE 5 | NE 5 | SSW 15 | NNE 5 | NE 6 | NNE 6 | NNE 5 | NE 6 | NNE 6 | NNE 7 | NNE 7 | NNE 7 |
| kJ | 46 | 73 | 38 | 38 | 39 | 21 | 21 | 49 | 17 | 17 | 20 | 42 | 17 | 47 | 35 | 12 | 54 | 34 | 40 | 59 | 59 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 15 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | N 8 | NNE 7 | NNE 7 | SSW 13 | NE 6 | SSW 12 | SSW 17 | SSW 16 | SSW 15 | SW 15 |
| kJ | 18 | 35 | 32 | 30 | 14 | 14 | 21 | 27 | 25 | 48 | 44 | 5 | 11 | 10 | 34 | 14 | 15 | 27 | 25 | 22 | 35 |
Swell 3 Height (m) Direction Period (s) | WNW 12 | NW 11 | NW 10 | SSW 16 | SSW 16 | ENE 7 | SSW 11 | SSW 14 | W 10 | W 10 | SSW 12 | W 9 | SSW 14 | SSW 13 | W 10 | SSW 13 | E 13 | ENE 7 | W 12 | S 12 | W 11 |
| kJ | 13 | 5 | 4 | 25 | 24 | 5 | 12 | 18 | 8 | 8 | 14 | 7 | 39 | 18 | 7 | 16 | 13 | 5 | 11 | 11 | 9 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NE 5 | — | — | NNE 5 | — | — | NNE 5 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 25 | — | — | 17 | — | — | 16 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 96 | 37 | 91 | 30 | 107 | 96 | 30 | 96 | 30 | 91 | 33 | 30 | 91 | 99 | 33 | 91 | 91 | 21 | 94 | 21 | 21 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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.
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