
Surf Forecasts:
Anaehoomalu Bay_A-Bay surf forecast from 10 Sep 2026:
- Best quality surf: Thursday 10 Sep, 11PM (local time) - 1ft (0.3m), 17s period, SW swell with glassy winds.
- Most powerful swell: Wednesday 16 Sep, 2PM (local time) - 1.5ft (0.4m), 18s period, SW swell with 109 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 11PM (local time) - 1ft (0.3m), 17s period with SW 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 Thursday (Sep 10) at 11PM. The primary swell is predicted to be 0.3m and 17s period with a secondary swell of 0.5m and 5s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Anaehoomalu Bay_A-Bay in the next 16 days are 0.4m 18s and forecast to arrive on Wednesday (Sep 16) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 7s period and expected on Thursday (Sep 10) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 10th Sep) | 1ft (0.3m) 17s |
| Best Surf | 11PM (Thu 10th Sep) | 1ft (0.3m) 17s |
| Most Powerful | 2PM (Wed 16th Sep) | 1.5ft (0.4m) 18s |
Table - best surf conditions forecast for Anaehoomalu Bay_A-Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on the menu for Anaehoomalu Bay, also known as A-Bay, over the next couple of weeks.
To be straight with you, it's a pretty quiet period. The first real chance of a wave comes on Thursday the 10th, but honestly, it's barely a ripple. We're looking at a tiny 1 ft swell rolling in from the SW with a very long period of 16 seconds. The energy is weak, just 42 (combined energy), so don't expect much push. The wind is a light cross-onshore at 3 mph, which won't help. It's a tough start.
Friday the 11th isn't much better. The swell stays tiny at 1 ft, but the period drops to 10 seconds. The morning looks glassy though, which is a nice thing to see. The water temp is about average for this time of year, so no surprises there.
The weekend and into the following week are flat. From Saturday the 12th right through to the early hours of Friday the 18th, we're looking at a real gap. The swell is either non-existent or so small it's not worth paddling out for. The wind is often light, but there's just no wave energy to work with. You'll see a lot of zeros in the energy readings.
Finally, there's a bit of a pulse on Friday morning the 18th. The swell pushes up to 1 ft from the SW with a 17-second period, and the energy jumps to 107 (combined energy). That's the best we're going to see in this whole outlook. The wind is light cross-shore at 6 mph, which is manageable. It's still small, but for a long-period groundswell, A-Bay's reef and point setup is the right place to be. The long period will mean better shaped waves, but also longer lulls between sets.
After that, it settles back down. The rest of the month is a mix of tiny SW and W swells, with the occasional glassy afternoon. The second week, from the 19th onwards, is pretty much a write-off. You'll get some clean, glassy moments, especially on the 21st and 24th, but with next to no swell, it's a flat spell.
Overall, the standout is that Friday the 18th session. It's not a classic, but it's the only real window of opportunity. For the rest of the time, you're better off stretching the legs or checking the forecast for a change. Crowds are possible at A-Bay when it's good, but with this outlook, you'll have the place to yourself.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Wed night. Warm (max 29°C on Thu morning, min 25°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Sat night. Warm (max 29°C on Mon afternoon, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | ||||||||||||||
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) | NE 7 | SW 16 | SW 18 | SW 10 | SW 10 | SW 9 | SW 9 | WSW 8 | SW 14 | SW 14 | NNE 9 | W 11 | W 11 | W 10 | W 10 | NNE 8 | WSW 9 | SW 19 | WSW 8 |
Wave Graph | |||||||||||||||||||
0 | 42 | 49 | 16 | 14 | 13 | 12 | 7 | 29 | 29 | 0 | 9 | 9 | 8 | 8 | 0 | 8 | 0 | 7 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | glassy | cross-off | glassy | cross-on | glassy | on | cross-on | glassy | cross-on | cross | glassy | cross-on | glassy | glassy | on | on | glassy |
High Tide | 3:14AM0.55m | 3:23PM0.75m | 3:52AM0.61m | 3:54PM0.69m | 4:30AM0.66m | 4:23PM0.62m | 5:07AM0.69m | 4:49PM0.54m | 5:46AM0.70m | 5:13PM0.47m | 6:28AM0.68m | 5:32PM0.40m | |||||||
Low Tide | 9:27PM0.08m | 8:58AM0.09m | 9:51PM0.06m | 9:44AM0.11m | 10:13PM0.06m | 10:31AM0.15m | 10:36PM0.06m | 11:17AM0.20m | 10:58PM0.07m | 12:07PM0.24m | 11:20PM0.09m | 1:05PM0.29m | 11:43PM0.12m | ||||||
— | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
6:30 | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — | — | 6:28 | — | — | 6:27 | — | — | 6:25 | — | |
mm | 3 | — | 2 | 1 | — | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 29 | 28 | 27 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 28 | 29 | 27 | 28 | 28 | 27 |
Feels °C | 33 | 33 | 32 | 32 | 30 | 30 | 31 | 30 | 30 | 30 | 30 | 29 | 30 | 31 | 32 | 32 | 31 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | NE 7 | NE 7 | NE 7 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 7 | NNE 7 |
49 | 59 | 65 | 13 | 37 | 51 | 37 | 44 | 68 | 86 | 67 | 49 | 62 | 61 | 59 | 54 | 37 | 21 | 37 | |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SW 16 | SW 18 | SW 16 | ENE 11 | SW 15 | SW 15 | SW 14 | NE 4 | SW 14 | SSW 12 | SSW 15 | SSW 14 | SW 14 | SSW 22 | SSW 21 | SW 20 | NNE 4 | SW 19 |
33 | 42 | 49 | 67 | 24 | 57 | 57 | 49 | 5 | 29 | 15 | 21 | 20 | 7 | 46 | 45 | 98 | 7 | 94 | |
Swell 3 Height (m) Direction Period (s) | SSW 7 | SSW 13 | SSW 13 | SW 10 | SW 10 | SW 9 | SW 9 | WSW 8 | SW 14 | WNW 11 | SSW 15 | W 11 | W 11 | W 10 | W 10 | SSW 13 | WSW 9 | SW 19 | WSW 8 |
5 | 16 | 16 | 16 | 14 | 13 | 12 | 7 | 29 | 12 | 22 | 9 | 9 | 8 | 8 | 17 | 8 | 96 | 7 | |
Wind waves Height (m) Direction Period (s) | — | — | — | NNE 4 | — | — | — | — | — | — | — | NE 4 | — | — | — | — | — | — | — |
— | — | — | 8 | — | — | — | — | — | — | — | 4 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 34 | 21 | 38 | 13 | 91 | 13 | 13 | 39 | 91 | 85 | 94 | 96 | 30 | 94 | 94 | 30 | 16 | 13 | 13 |
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.










