Surf Forecasts:
Anaehoomalu Bay_A-Bay surf forecast from 19 Jul 2026:
- Most powerful swell: Sunday 19 Jul, 8AM (local time) - 1.5ft (0.4m), 13s period, WNW swell with 55 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 13s and forecast to arrive on Sunday (Jul 19) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 8s period and expected on Sunday (Jul 26) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Sun 19th Jul) | 1.5ft (0.4m) 13s |
Table - best surf conditions forecast for Anaehoomalu Bay_A-Bay over the next 16 days.
The Lowdown
Alright, Rusty here. Let's cut through the noise on this one.
For the bulk of the next 16 days, A-Bay is going to be a total ghost town. We're looking at a dead flat spell from the 21st of July all the way through the 29th. That's a solid week-plus of nothing. The water's sitting at about 80°F, which is pretty normal for this time of year, so it's not that – it's just that there's no swell to speak of.
We have a tiny window right at the start. Sunday the 19th, there's a little 1ft swell from the WNW with a long 12-second period. The swell energy is weak (71), so it's a poor surf call. The wind is a light cross-shore from the N, so there's a little ripple on it. Monday the 20th is even smaller, dropping to 1ft. It's not worth getting wet for.
The only real highlight, and it's a long way out, is on Thursday the 30th of July. We finally get a 1ft pulse, but it's a long-period groundswell from the SW with an 18-second period. The energy is still weak (49), but that long period might give it a little bit of shape. The key is that by Thursday afternoon, the wind goes glassy. If you have a longboard and you just want to cruise on some tiny, clean lines, that's your moment. It's a slim pickin's kind of call, but it's the only one.
The rest of the run is a wash. The 31st brings a tiny 1ft from the N with a short 7-second period, which is just junk. The 1st and 2nd of August have a touch more size (2ft) and a bit more energy (84), but it's coming from the W with a cross-onshore wind, so it's messy. For the whole period, this is a kite-surfing setup more than a paddle-surfing one.
Rusty out.
Short Range ForecastMostly dry. Warm (max 28°C on Sun morning, min 25°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Fri morning, min 24°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | |||||||||||||||
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 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | W 11 | NE 7 | SSW 26 | SSW 24 | SSW 23 | SSW 22 | SSW 20 | SSW 20 | SSW 18 | NE 7 | NE 6 | NNE 8 | NE 8 | SSW 18 | NNE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 50 | 29 | 29 | 27 | 13 | 13 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | cross-off | on | on | cross-off | on | glassy | cross-off | cross | glassy | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | glassy | cross-off |
High Tide | 8:08AM0.51m | 7:13PM0.57m | 9:17AM0.55m | 7:39PM0.48m | 10:31AM0.59m | 8:03PM0.40m | 11:40AM0.63m | 12:37PM0.67m | 11:10PM0.29m | 1:23PM0.71m | 00:41AM0.28m | 2:04PM0.75m | 1:37AM0.29m | ||||||||
Low Tide | 1:24PM0.31m | 2:11AM0.12m | 2:54PM0.37m | 2:45AM0.13m | 5:19PM0.38m | 3:25AM0.14m | 4:16AM0.14m | 8:51PM0.28m | 5:15AM0.14m | 9:13PM0.24m | 6:12AM0.12m | 9:35PM0.21m | |||||||||
 |  |  | | | | | |  | | | | | | | | | | | | | |
 | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — |
 | — | 7:05 | — | — | 7:05 | — | — | 7:04 | — | — | 7:04 | — | — | 7:04 | — | — | 7:02 | — | — | 7:02 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 26 | 28 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 28 | 28 | 25 | 27 | 28 | 25 |
Feels °C | 30 | 31 | 30 | 30 | 29 | 29 | 29 | 30 | 29 | 29 | 29 | 30 | 28 | 29 | 28 | 29 | 29 | 25 | 27 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | WNW 12 | NNE 6 | NE 8 | NNE 8 | NNE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 6 | NE 6 | NE 6 | NE 6 | NNE 6 | NE 7 | NE 6 | NNE 8 | NE 8 | NNE 8 | NNE 8 |
| kJ | 50 | 41 | 57 | 50 | 68 | 49 | 54 | 52 | 50 | 12 | 31 | 24 | 24 | 58 | 23 | 54 | 54 | 72 | 84 | 101 | 95 |
Swell 2 Height (m) Direction Period (s) | SW 11 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 24 | SSW 23 | SSW 22 | SSW 20 | SSW 20 | SSW 18 | SSW 18 | SSW 17 | SSW 20 | SSW 16 | SSW 18 | SSW 18 |
| kJ | 5 | 29 | 29 | 27 | 13 | 13 | 13 | 14 | 13 | 55 | 106 | 91 | 78 | 75 | 66 | 61 | 59 | 76 | 51 | 102 | 60 |
Swell 3 Height (m) Direction Period (s) | SW 20 | NE 5 | SSW 12 | ENE 7 | SSW 10 | SSW 16 | W 11 | SSW 16 | SSW 26 | SSW 16 | NNE 7 | SSW 17 | SSW 16 | SSW 16 | SSW 17 | SSW 14 | SSW 21 | SSW 16 | SSW 20 | S 9 | E 15 |
| kJ | 16 | 6 | 13 | 5 | 11 | 26 | 9 | 26 | 65 | 25 | 5 | 29 | 25 | 25 | 30 | 19 | 45 | 25 | 37 | 7 | 18 |
Wind waves Height (m) Direction Period (s) | NNE 7 | — | — | — | — | — | — | — | — | NNE 5 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 66 | — | — | — | — | — | — | — | — | 16 | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 13 | 96 | 30 | 94 | 96 | 30 | 91 | 91 | 13 | 13 | 38 | 34 | 91 | 91 | 30 | 91 | 21 | 30 | 30 | 99 | 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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