Surf Forecasts:
Anaehoomalu Bay_A-Bay surf forecast from 4 Sep 2026:
- Best quality surf: Monday 7 Sep, 11PM (local time) - 7.5ft (2.3m), 13s period, WSW swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 5PM (local time) - 7ft (2.2m), 14s period, WSW swell with 2,082 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 5PM (local time) - 3.5ft (1.1m), 12s 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 Sunday (Sep 06) at 5PM. The primary swell is predicted to be 1.1m and 12s period. 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 2.2m 14s and forecast to arrive on Monday (Sep 07) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 12s period and expected on Sunday (Sep 06) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Sun 6th Sep) | 3.5ft (1.1m) 12s |
| Best Surf | 11PM (Mon 7th Sep) | 7.5ft (2.3m) 13s |
| Most Powerful | 5PM (Mon 7th Sep) | 7ft (2.2m) 14s |
Table - best surf conditions forecast for Anaehoomalu Bay_A-Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's break down what we've got for the next couple of weeks at A-Bay.
Right off the bat, it’s a slow start. Thursday and Friday are flat, completely flat. Saturday’s no better. We're looking at a good few days of nothing before anything shows up.
Then, on Sunday the 6th, things change. We get a clean, glassy afternoon with a 4ft SW swell rolling in. The energy’s moderate (380), and the water is sitting right around 82°, which is pretty average for this time of year. For a reef and point break, that SW direction is a beauty. This is the standout of the whole forecast – clean, fun waves, not too big. Just a heads up, this spot can get a crowd sometimes.
Monday the 7th sees the swell bump up a bit more. Morning brings 6ft and the afternoon pushes it to 7ft from the WSW, with solid energy (1307 and 2082). The period dips to 14 seconds, which is still decent groundswell. However, the wind is cross-onshore, so it won't be as clean as Sunday's glass. It’s still ridable, but the magic is on Sunday.
After that, the surf fades fast. Tuesday the 8th is marginal at best, and from Wednesday the 9th onward, we’re back to tiny, weak swell and poor conditions. There are a few moments with very long period swells (15, 16, even 24 seconds) but next to no height to go with them. The energy is weak, barely registering. The second week is a write-off for any proper surfing.
So, if you're after a paddle, make your move on Sunday the 6th. That's the window.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Thu afternoon, min 25°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 7mm), mostly falling on Sun afternoon. Warm (max 29°C on Mon afternoon, min 26°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | ||||||||||||||
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) | W 9 | NE 6 | S 13 | SSW 12 | SSW 11 | SSW 12 | SSW 12 | SSW 12 | SW 12 | SW 12 | SW 13 | SW 14 | WSW 14 | WSW 12 | W 10 | W 10 | W 7 | SW 8 | NE 6 | SSW 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 380 | 618 | 1307 | 2082 | 1158 | 461 | 231 | 37 | 20 | 0 | 0 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-off | glassy | on | cross-on | glassy | on | glassy | glassy | cross-on | cross-on | cross-off | on | on | glassy | cross | cross | cross-off |
High Tide | 6:22PM0.32m | 10:26AM0.70m | 9:07PM0.26m | 11:45AM0.74m | 11:48PM0.27m | 12:45PM0.78m | 1:01AM0.33m | 1:33PM0.81m | 1:51AM0.40m | 2:14PM0.82m | 2:34AM0.47m | 2:50PM0.80m | 3:14AM0.55m | |||||||
Low Tide | 5:34PM0.32m | 1:47AM0.12m | 7:35PM0.26m | 3:13AM0.14m | 7:49PM0.20m | 4:53AM0.13m | 8:13PM0.16m | 6:12AM0.11m | 8:38PM0.12m | 7:15AM0.09m | 9:03PM0.10m | 8:08AM0.08m | 9:27PM0.08m | |||||||
 |  | | | | | | | |  |  | | | | | |  | | | | |
 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — |
 | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:30 | — |
mm | — | — | — | — | — | — | — | — | — | 3 | 2 | — | — | — | — | 1 | 1 | — | — | — |
Temp °C | 28 | 26 | 27 | 28 | 26 | 28 | 28 | 26 | 28 | 28 | 27 | 28 | 29 | 28 | 29 | 28 | 28 | 28 | 28 | 26 |
Feels °C | 29 | 27 | 29 | 30 | 27 | 30 | 31 | 30 | 31 | 31 | 31 | 32 | 32 | 32 | 33 | 32 | 34 | 31 | 31 | 27 |
Swell 1 Height (m) Direction Period (s) | NE 7 | NE 6 | NE 6 | NE 6 | NNE 5 | NNE 6 | SSW 12 | SSW 12 | SW 12 | SW 12 | SW 13 | SW 14 | WSW 14 | WSW 12 | W 10 | W 10 | W 7 | NE 8 | NE 6 | NE 7 |
| kJ | 99 | 54 | 52 | 52 | 25 | 36 | 180 | 247 | 346 | 380 | 618 | 1307 | 2082 | 1158 | 461 | 231 | 37 | 45 | 35 | 12 |
Swell 2 Height (m) Direction Period (s) | S 14 | SSW 13 | S 13 | SSW 12 | SSW 11 | SSW 12 | NNE 6 | NNE 6 | NNE 7 | NE 6 | NE 6 | ENE 12 | NE 12 | NE 12 | SW 9 | SW 8 | NNE 8 | SW 8 | NE 8 | SSW 13 |
| kJ | 16 | 58 | 84 | 115 | 71 | 119 | 47 | 31 | 38 | 56 | 40 | 187 | 232 | 190 | 114 | 66 | 45 | 20 | 14 | 33 |
Swell 3 Height (m) Direction Period (s) | W 9 | E 14 | E 14 | E 14 | ENE 14 | ENE 13 | ENE 14 | E 13 | ENE 12 | ENE 12 | ENE 12 | N 7 | SSW 17 | SSW 15 | NE 9 | NE 9 | SW 8 | SSW 14 | SW 8 | SSW 7 |
| kJ | 2 | 4 | 15 | 16 | 37 | 58 | 61 | 86 | 83 | 82 | 115 | 24 | 95 | 77 | 86 | 62 | 31 | 38 | 14 | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNE 5 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 15 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 30 | 21 | 96 | 30 | 13 | 13 | 11 | 11 | 13 | 0 | 0 | 4 | 13 | 0 | 37 | 16 | 13 | 38 | 51 | 30 |
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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