Surf Forecasts:
Anaehoomalu Bay_A-Bay surf forecast from 3 Aug 2026:
- Most powerful swell: Sunday 9 Aug, 8PM (local time) - 1.5ft (0.4m), 14s period, W swell with 62 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 14s and forecast to arrive on Sunday (Aug 09) at 8PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Saturday (Aug 08) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Sun 9th Aug) | 1.5ft (0.4m) 14s |
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 the next couple of weeks.
To be straight with you, we’re staring down a long, flat spell. The first solid week is basically a write-off for any decent waves. We’re talking tiny, gutless slop from the 2nd right through the 9th of August – lots of nothing or ankle-biters under 2 ft. The swell energy is weak, barely cracking 30 (combined energy of all swells directed here). You’d be better off waxing the deck chairs than the board.
Things start to show a pulse around Monday the 10th. The first real flicker of life comes Tuesday the 11th into Wednesday the 12th. The standout in this whole outlook is Anaehoomalu Bay_A-Bay (Big Island) on Tuesday afternoon the 11th. We see a small 2 ft groundswell rolling in from the west, but the period hits 15 seconds – that’s proper long-period energy. The combined energy reaches 155 (moderate wave energy), and the wind goes glassy. For a reef and point, that long-period juice lines up beautifully. It’s just knee-to-waist high, but clean, glassy conditions will make it look like a million bucks for the intermediate crew. The water temp is sitting about normal for this time of year at 81°.
The following day, Wednesday the 12th, also has a brief moment. The morning swell bumps up to 2 ft from the west, with a 14-second period and combined energy hitting 200 (moderate). But the wind is light offshore, so the morning could offer a few tidy nuggets for the patient surfer. It’s not a standout, but worth a look if you’re keen.
After that, the 13th through the 17th sees a slow decline. The swell holds around 1 ft to 3 ft, but the wind swings cross-shore and then starts to howl from the north-northeast, with speeds up to 12 mph. The combined energy gets up to 296 (moderate) on the 14th, but the cross-chop and mush ruin the party. It’s a marginal setup for a paddle board – maybe more interesting for the kite crowd if it gets strong enough.
Bottom line: if you can hunt that glassy window on Tuesday the 11th or Wednesday morning the 12th, you’ll get the best of a very quiet period. Otherwise, it’s a long wait.
Rusty.
Short Range ForecastSome drizzle, heaviest during Mon night. Warm (max 28°C on Sun afternoon, min 25°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Wed afternoon, min 25°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sun 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | ||||||||||||||
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) | N 9 | N 9 | W 11 | W 12 | W 12 | W 11 | ENE 11 | W 13 | W 13 | W 12 | W 12 | W 12 | W 12 | SSW 14 | W 12 | W 12 | NE 6 | NE 7 | NE 6 | NE 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 15 | 6 | 10 | 10 | 11 | 9 | 0 | 13 | 28 | 11 | 11 | 11 | 12 | 0 | 11 | 11 | 0 | 0 | 0 | 0 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | on | glassy | glassy | on | on | glassy | on | on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | glassy | glassy |
High Tide | 5:59PM0.65m | 7:11AM0.54m | 6:26PM0.57m | 8:13AM0.58m | 6:53PM0.49m | 9:29AM0.62m | 7:23PM0.40m | 10:51AM0.68m | 8:14PM0.32m | 12:04PM0.74m | 10:56PM0.27m | 1:03PM0.81m | 00:39AM0.28m | |||||||
Low Tide | 00:44AM0.10m | 12:41PM0.29m | 1:13AM0.10m | 2:00PM0.35m | 1:49AM0.10m | 4:11PM0.37m | 2:36AM0.10m | 7:20PM0.32m | 3:40AM0.09m | 8:14PM0.25m | 8:46PM0.20m | |||||||||
 |  | | |  | | | | | |  |  | | | | | | | | | |
 | — | — | 5:58 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — |
 | 7:00 | — | — | 6:59 | — | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — | — | 6:57 | — | — | 6:55 | — |
mm | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 26 | 27 | 27 | 26 | 27 | 28 | 27 | 28 | 28 | 26 | 28 | 28 | 26 | 28 | 28 | 27 | 28 | 28 | 27 |
Feels °C | 31 | 29 | 28 | 29 | 30 | 29 | 31 | 31 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 31 | 30 | 30 | 30 | 32 |
Swell 1 Height (m) Direction Period (s) | NNE 6 | NNE 6 | N 6 | NNE 6 | N 6 | ENE 11 | ENE 11 | ENE 10 | ENE 9 | NNE 4 | NE 5 | NE 5 | NE 5 | NNE 4 | NE 5 | NE 6 | NE 6 | NE 9 | NE 6 | NE 7 |
| kJ | 36 | 44 | 20 | 20 | 17 | 47 | 46 | 39 | 33 | 12 | 13 | 12 | 21 | 7 | 16 | 54 | 24 | 12 | 64 | 86 |
Swell 2 Height (m) Direction Period (s) | NE 8 | NE 8 | NE 8 | NE 8 | ENE 11 | NNE 6 | NE 4 | NNE 6 | NNE 5 | NE 9 | NE 8 | NE 8 | NE 8 | SSW 14 | W 12 | W 12 | NE 7 | SSW 18 | SSW 18 | SSW 18 |
| kJ | 51 | 31 | 30 | 16 | 48 | 12 | 7 | 10 | 5 | 21 | 18 | 10 | 9 | 20 | 11 | 11 | 8 | 32 | 31 | 30 |
Swell 3 Height (m) Direction Period (s) | N 9 | N 9 | W 11 | W 12 | W 12 | W 11 | NNE 6 | W 13 | W 13 | W 12 | W 12 | W 12 | W 12 | ENE 7 | ENE 7 | SSW 13 | NE 11 | SSW 13 | NE 10 | SSW 13 |
| kJ | 15 | 6 | 10 | 10 | 11 | 9 | 6 | 13 | 28 | 11 | 11 | 11 | 12 | 5 | 5 | 18 | 18 | 16 | 15 | 17 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 7 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 42 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 91 | 21 | 91 | 91 | 37 | 37 | 88 | 37 | 91 | 91 | 34 | 91 | 91 | 85 | 91 | 91 | 87 | 91 | 30 | 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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