Surf Forecasts:
Anaehoomalu Bay_A-Bay surf forecast from 1 Sep 2026:
- Best quality surf: Saturday 5 Sep, 8PM (local time) - 2.5ft (0.7m), 11s period, SW swell with glassy winds.
- Most powerful swell: Saturday 5 Sep, 11AM (local time) - 2.5ft (0.7m), 11s period, SW swell with 125 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 8PM (local time) - 2.5ft (0.7m), 11s 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 Saturday (Sep 05) at 8PM. The primary swell is predicted to be 0.7m and 11s 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 0.7m 11s and forecast to arrive on Saturday (Sep 05) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 7s period and expected on Thursday (Sep 03) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sat 5th Sep) | 2.5ft (0.7m) 11s |
| Best Surf | 8PM (Sat 5th Sep) | 2.5ft (0.7m) 11s |
| Most Powerful | 11AM (Sat 5th Sep) | 2.5ft (0.7m) 11s |
Table - best surf conditions forecast for Anaehoomalu Bay_A-Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's be straight up – this is a tough outlook for our stretch of coast, just the one spot on the cards, and it’s a quiet one.
We’re looking at a long, flat spell to kick things off. From the start right through the first week of September, it’s pretty much dead. We’ve got a few tiny pulses of swell around the 0.7ft mark early on, but combined energy is in the single digits or teens (0 to 16), which is basically nothing. The wind is a mix of light cross-shore breezes, which would have been nice if there was any wave to ride, but there just isn’t. This gap of useless surf stretches all the way from now until the end of the first week.
Things finally try to wake up a bit on the morning of Saturday the 5th. Anaehoomalu Bay (A-Bay) sees a jump to 2ft from the SW with a moderate 125 combined energy, which is a step up, but honestly, the wind is cross-onshore, so the quality is gone. It’s the same story through Sunday the 6th – the swell holds at 2ft but it’s messy. Sunday afternoon does go glassy, earning a score of “surfable but ordinary,” which is about the best we can say for this run.
The next real moment of interest comes on Wednesday the 9th. We’ve got a 2ft SW groundswell with a long 13-second period and solid energy readings of 170 in the morning and 150 in the afternoon. But more importantly, the afternoon goes glassy. That’s the closest we get to a decent window, with clean conditions on a small, long-period wave. For a reef and point like A-Bay, that long period (12-13 seconds) can actually give the waves a bit of shape, even at this size.
Beyond that, it’s a fade back into tiny, weak surf all the way through to the end of the forecast. Water temp at A-Bay is sitting at about 82°, which feels right on the money for this time of year – no real anomaly to talk about.
If you’re a beginner, there’s honestly nothing here for you. If you’re an experienced wave hog, you might get a few glassy little peelers on the afternoon of the 9th, but don’t expect much. This is a long blank run for the area, and that happens. We just gotta wait for the next proper pulse.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Tue afternoon, min 25°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Sat night. Warm (max 29°C on Sat morning, min 25°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Mon 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | ||||||||||||||
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 12 | W 12 | NNE 7 | NNE 6 | W 11 | W 11 | W 10 | W 10 | SW 13 | W 9 | W 9 | SSW 11 | SSW 11 | SW 11 | SW 11 | SW 11 | SW 10 | SW 10 | SW 10 | SW 10 |
Wave Graph | ||||||||||||||||||||
11 | 12 | 0 | 0 | 10 | 9 | 8 | 8 | 7 | 2 | 2 | 0 | 0 | 0 | 125 | 114 | 67 | 89 | 89 | 82 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross | glassy | glassy | cross | cross | cross-off | cross | cross-off | cross-off | cross | cross | cross-off | cross-on | cross-on | glassy | cross-on | glassy | cross-off |
High Tide | 5:23PM0.55m | 6:40AM0.66m | 5:49PM0.47m | 7:40AM0.67m | 6:14PM0.39m | 8:57AM0.68m | 6:22PM0.32m | 10:26AM0.70m | 9:07PM0.26m | 11:45AM0.74m | 11:48PM0.27m | 12:45PM0.78m | 1:01AM0.33m | |||||||
Low Tide | 11:45PM0.07m | 12:54PM0.29m | 00:15AM0.08m | 2:26PM0.33m | 00:53AM0.09m | 5:34PM0.32m | 1:47AM0.12m | 7:35PM0.26m | 3:13AM0.14m | 7:49PM0.20m | 4:53AM0.13m | 8:13PM0.16m | ||||||||
— | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | |
6:38 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 27 | 26 | 28 | 29 | 27 | 28 | 28 | 26 | 28 | 28 | 26 | 28 | 28 | 26 | 29 | 29 | 27 | 29 | 28 | 27 |
Feels °C | 30 | 27 | 30 | 31 | 31 | 31 | 31 | 27 | 30 | 30 | 28 | 31 | 31 | 29 | 31 | 32 | 32 | 32 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | NE 8 | NE 8 | ENE 8 | NNE 6 | NNE 8 | SSW 16 | NE 7 | SSW 15 | S 14 | NE 7 | S 13 | NE 6 | NE 6 | NNE 6 | NE 7 | NE 7 | NNE 7 | SW 10 | ENE 12 | ENE 12 |
129 | 113 | 26 | 53 | 106 | 50 | 107 | 42 | 16 | 135 | 87 | 83 | 78 | 41 | 63 | 71 | 57 | 89 | 117 | 230 | |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 18 | ENE 8 | SSW 16 | W 11 | SSW 15 | W 10 | SW 13 | S 14 | E 13 | SSW 11 | SSW 11 | SW 11 | SW 11 | SW 11 | SW 10 | NNE 7 | NNE 7 | SW 10 |
20 | 21 | 31 | 27 | 51 | 9 | 45 | 8 | 7 | 16 | 4 | 97 | 105 | 119 | 125 | 114 | 67 | 41 | 40 | 82 | |
Swell 3 Height (m) Direction Period (s) | W 12 | W 12 | SSW 14 | NE 8 | W 11 | SW 14 | W 10 | SW 13 | W 9 | W 9 | W 9 | E 14 | E 13 | ENE 12 | ENE 13 | NNE 10 | ENE 13 | ENE 13 | SW 10 | NNE 7 |
11 | 12 | 20 | 9 | 10 | 7 | 8 | 7 | 2 | 2 | 2 | 15 | 13 | 51 | 33 | 20 | 98 | 131 | 89 | 37 | |
Wind waves Height (m) Direction Period (s) | — | — | NNE 7 | — | — | NE 8 | — | NE 7 | NE 7 | — | NE 7 | — | — | — | — | — | — | — | — | — |
— | — | 59 | — | — | 110 | — | 102 | 105 | — | 88 | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 21 | 21 | 91 | 91 | 21 | 96 | 21 | 21 | 99 | 39 | 21 | 107 | 13 | 13 | 13 | 8 | 0 | 13 | 0 | 0 |
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.











