
Surf Forecasts:
Anaehoomalu Bay_A-Bay surf forecast from 31 Jul 2026:
- Most powerful swell: Thursday 30 Jul, 8PM (local time) - 1ft (0.3m), 18s period, SW swell with 49 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 18s and forecast to arrive on Thursday (Jul 30) at 8PM. 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 Friday (Jul 31) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Thu 30th Jul) | 1ft (0.3m) 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 cookin’ for Anaehoomalu Bay, also known as A-Bay.
Right off the bat, I gotta be straight with you – the next week and a half is a proper bust. We’re looking at a long, dry spell from the 30th of July all the way through until the 9th of August. There’s simply no recommendable surf to speak of. The swell is tiny, often non-existent, with heights barely scraping 1 foot and periods that are all over the shop. The water temp is sitting at a pleasant 81°, which is pretty much normal for this time of year, but that’s about the only thing going for it. The wave energy is flat – we’re seeing readings like 49 (combined energy) which is weak, and honestly, it’s just poor surf conditions day after day. The wind is light and variable, mostly glassy or cross, but with nothing to push, it’s a total washout. You’re better off with a snorkel than a surfboard for the first week of August.
Now, hold onto your leash, because things start to look a little more interesting during the second week. The first real glimmer of hope pops up on Sunday the 9th of August. The morning still looks poor, but by the afternoon, we’ve got a glassy surface with a small 2 foot swell from the West, with a period of 15 seconds. That’s a very long period groundswell, and while the height is still small, the energy ticks up to 233 (combined energy). The wave comment says “surfable waves but very ordinary conditions,” but glassy wind and a long-period pulse at A-Bay is worth a look for a patient surfer.
The standout period, if you can call it that, is the Monday the 10th and Tuesday the 11th of August. The swell holds at 3 feet from the West, with a period of 14 seconds. The wave energy is now solidly moderate, hitting 268 on Monday morning and 257 on Tuesday morning. The wind is light and offshore from the WNW, which is a major positive for this reef and point setup. The optimum swell direction here is WNW, so this is a good match. The water temp anomaly is normal, so no worries there. A-Bay is a consistent spot, crowds are sometimes an issue, but on a 3 foot day with clean conditions, it’s a great call for intermediates. Just remember, that long period means it’ll be a bit more lined up and better for the point section than the beach.
So, to sum it up: the first ten days are a write-off. The best on offer is that window from the 9th to the 11th of August, with Monday the 10th being the pick of the bunch. It’s not a pumping swell, but for a glassy, offshore day with a long period groundswell, it’s about as good as it gets in this forecast. After that, the swell drops off again into the second week.
Stay patient, and keep an eye on the sky.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Thu afternoon, min 25°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Sun afternoon, min 25°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||||
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) | SW 18 | SW 16 | SW 16 | N 9 | N 8 | N 8 | SW 14 | N 11 | N 10 | N 9 | N 9 | W 11 | NNE 6 | W 12 | N 6 | NE 6 | ENE 10 | W 12 | W 11 | NE 8 |
Wave Graph | ||||||||||||||||||||
49 | 41 | 0 | 6 | 5 | 5 | 29 | 9 | 16 | 15 | 6 | 10 | 0 | 11 | 7 | 0 | 0 | 11 | 10 | 0 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | glassy | cross-off | on | glassy | glassy | on | cross-on | glassy | glassy | glassy | glassy |
High Tide | 4:41PM0.80m | 4:50AM0.43m | 5:08PM0.77m | 5:32AM0.47m | 5:33PM0.72m | 6:18AM0.50m | 5:59PM0.65m | 7:11AM0.54m | 6:26PM0.57m | 8:13AM0.58m | 6:53PM0.49m | 9:29AM0.62m | 7:23PM0.40m | |||||||
Low Tide | 11:32PM0.13m | 10:17AM0.11m | 11:55PM0.12m | 10:58AM0.16m | 00:18AM0.11m | 11:44AM0.22m | 00:44AM0.10m | 12:41PM0.29m | 1:13AM0.10m | 2:00PM0.35m | 1:49AM0.10m | 4:11PM0.37m | 2:36AM0.10m | |||||||
— | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:00 | — | — | |
7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:59 | — | — | 6:58 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 28 | 27 | 28 | 28 | 26 | 28 | 27 | 26 | 28 | 28 | 26 | 27 | 28 | 26 | 28 | 28 | 27 | 27 | 27 | 26 |
Feels °C | 32 | 31 | 30 | 29 | 27 | 28 | 29 | 26 | 30 | 31 | 29 | 28 | 30 | 30 | 31 | 31 | 30 | 31 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | NE 7 | NE 6 | NE 6 | NE 6 | SW 15 | NE 6 | NE 8 | SW 14 | NNE 6 | NE 8 | NNE 6 | N 6 | NNE 6 | NNE 6 | ENE 11 | NE 6 | NNE 5 | NE 9 | W 11 | NNE 4 |
54 | 45 | 43 | 75 | 55 | 70 | 116 | 47 | 37 | 110 | 30 | 22 | 31 | 20 | 47 | 40 | 17 | 21 | 10 | 6 | |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 16 | SW 16 | SW 15 | N 8 | SW 14 | SW 14 | N 11 | NE 8 | N 9 | NE 8 | NE 8 | NE 8 | ENE 12 | NE 6 | ENE 11 | ENE 10 | W 12 | NNE 9 | NE 4 |
49 | 41 | 65 | 60 | 5 | 49 | 29 | 9 | 35 | 15 | 33 | 31 | 17 | 56 | 8 | 45 | 38 | 11 | 8 | 4 | |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SSW 12 | ENE 8 | N 9 | S 12 | N 8 | E 14 | E 14 | N 10 | SSW 13 | N 9 | W 11 | ENE 12 | W 12 | N 6 | SSW 11 | SSW 11 | NNE 9 | SSW 11 | NE 8 |
28 | 14 | 6 | 6 | 3 | 5 | 4 | 4 | 16 | 17 | 6 | 10 | 15 | 11 | 7 | 13 | 12 | 8 | 11 | 11 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NE 6 | — | — | NE 8 | — | — | — | — | — | — | — | — | — | NE 6 | NNE 9 | — |
— | — | — | — | 73 | — | — | 86 | — | — | — | — | — | — | — | — | — | 15 | 52 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 87 | 30 | 96 | 50 | 30 | 21 | 21 | 21 | 91 | 91 | 21 | 91 | 91 | 37 | 87 | 87 | 33 | 87 | 87 | 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.











