Surf Forecasts:
Anaehoomalu Bay_A-Bay surf forecast from 23 Aug 2026:
- Best quality surf: Sunday 23 Aug, 8PM (local time) - 1.5ft (0.4m), 10s period, WNW swell with cross-offshore winds.
- Most powerful swell: Sunday 23 Aug, 2PM (local time) - 1.5ft (0.5m), 11s period, WNW swell with 68 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 8PM (local time) - 1.5ft (0.4m), 10s period with WNW swell.
Best Forecast Surf Conditions for Anaehoomalu Bay_A-Bay this week:
The surf forecast for Anaehoomalu Bay_A-Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 8PM. The primary swell is predicted to be 0.4m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Anaehoomalu Bay_A-Bay in the next 16 days are 0.5m 11s and forecast to arrive on Sunday (Aug 23) 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 1.0m 6s period and expected on Sunday (Aug 23) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 23rd Aug) | 1.5ft (0.4m) 10s |
| Best Surf | 8PM (Sun 23rd Aug) | 1.5ft (0.4m) 10s |
| Most Powerful | 2PM (Sun 23rd Aug) | 1.5ft (0.5m) 11s |
Table - best surf conditions forecast for Anaehoomalu Bay_A-Bay over the next 16 days.
The Lowdown
Hey folks, Rusty here. Let's talk about the surf outlook for Anaehoomalu Bay – A-Bay. I gotta be straight with you, this is a tough one. Over the next 16 days, there’s hardly anything to get excited about. We're looking at a long, dry spell with very little surf on offer.
Right out of the gate, we have the best chance all period on Sunday morning, August 23rd. We're looking at a tiny 2 ft swell from the WNW at 11 seconds. The combined swell energy is weak at just (108). The wind is a cross-offshore from the NE at 9 mph, cleaning things up a bit. It’s surfable, but very ordinary. The water is a touch warmer than normal at 82°. Honestly, it's a morning for a longboard if you're desperate.
After that, it gets grim. The rest of Sunday afternoon and the entire following week into early September are a total write-off. We see days of flatness with no swell height, or tiny, weak pulses with poor wind. There are long gaps of several days with absolutely nothing worth paddling out for.
Even by the end of August into September, the little blips of swell we get are plagued by onshore or poor winds. On Monday, August 31st, there's a 1.0 ft swell from the SW with a very long 15-second period, but the wind is onshore and the energy is a weak (33). That long period will be hard to manage at a beach break setup, but A-Bay is a reef and point, so it might handle it better. Still, the direction (SW) is not optimum for the break, which does best with a WNW swell.
The rest of the first week of September is more of the same: flat spells, tiny swell, and poor wind conditions. There's a very faint pulse on September 7th with a 1.0 ft, 16-second period swell from the SW, but with onshore wind from the WNW at 6 mph, it’s not one to mark on your calendar.
Bottom line: this is a lean period for A-Bay. There's nothing here that qualifies as a standout. With the combined swell energy being mostly in the two-digit range for weak energy and almost everything being "poor surf conditions," it’s best to find something else to do.
Stay tuned, it can't stay this flat forever.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Mon afternoon. Warm (max 29°C on Sun afternoon, min 25°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Wed morning, min 25°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | |||||||||||||||
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 11 | WNW 11 | WNW 10 | WNW 12 | WNW 11 | NW 10 | NE 6 | NE 6 | NNE 5 | NE 6 | NE 6 | NNE 5 | SSW 16 | N 8 | N 8 | N 7 | NE 6 | W 10 | NNE 5 | N 6 | SSW 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 74 | 44 | 18 | 13 | 12 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 11 | 9 | 0 | 7 | 0 | 10 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | glassy | cross-on | glassy | glassy | cross | glassy | cross-off | cross | glassy | cross-off | cross-on | cross | cross-off | cross-on | glassy | cross-off | cross | cross-off | cross-off |
High Tide | 1:38PM0.72m | 1:33AM0.32m | 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 | ||||||||
Low Tide | 9:01PM0.19m | 6:48AM0.12m | 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 | ||||||||
 |  |  |  |  |  | | | | | | | | | | | | | | | | |
 | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — |
 | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:40 | — |
mm | — | 2 | — | — | 3 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 29 | 28 | 28 | 28 | 27 | 28 | 29 | 27 | 28 | 28 | 26 | 27 | 28 | 26 | 28 | 28 | 26 | 27 | 27 | 25 |
Feels °C | 30 | 32 | 32 | 31 | 32 | 31 | 31 | 32 | 30 | 30 | 31 | 29 | 29 | 30 | 29 | 29 | 31 | 30 | 28 | 29 | 26 |
Swell 1 Height (m) Direction Period (s) | WNW 11 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NNE 5 | NE 6 | NE 6 | NNE 5 | NNE 5 | NE 5 | NE 5 | N 7 | NE 6 | NE 6 | NNE 6 | NE 7 | NNE 6 |
| kJ | 74 | 73 | 34 | 42 | 60 | 39 | 32 | 52 | 23 | 31 | 32 | 22 | 17 | 28 | 20 | 9 | 31 | 38 | 4 | 35 | 17 |
Swell 2 Height (m) Direction Period (s) | SW 15 | WNW 11 | WNW 10 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 14 | SSW 15 | SSW 17 | SSW 13 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | NNE 7 | SSW 13 | SSW 13 | N 6 | NE 7 |
| kJ | 34 | 44 | 18 | 18 | 35 | 32 | 30 | 14 | 21 | 21 | 27 | 17 | 24 | 44 | 42 | 39 | 9 | 17 | 16 | 10 | 7 |
Swell 3 Height (m) Direction Period (s) | ENE 8 | SW 14 | SSW 14 | WNW 12 | WNW 11 | NW 10 | SSW 16 | SSW 16 | SSW 12 | SSW 11 | SSW 14 | SSW 16 | SSW 12 | N 8 | N 8 | SW 11 | SSW 13 | W 10 | ENE 7 | SSW 12 | SSW 17 |
| kJ | 6 | 33 | 20 | 13 | 12 | 4 | 25 | 24 | 14 | 12 | 18 | 25 | 15 | 5 | 11 | 4 | 18 | 7 | 5 | 15 | 27 |
Wind waves Height (m) Direction Period (s) | NNE 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNE 5 | — | — | NNE 5 | — | — |
| kJ | 41 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 15 | — | — | 26 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 13 | 31 | 96 | 87 | 30 | 96 | 107 | 30 | 30 | 96 | 30 | 96 | 96 | 34 | 96 | 96 | 33 | 96 | 30 | 33 |
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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