Anaehoomalu Bay_A-Bay Surf Break

Lat Long: 19.92° N 155.89° W

Anaehoomalu Bay_A-Bay Surf Forecast and Surf Report

Issued: 7 am 22 Aug 2026 (local time)

Forecast update in  hr  min

Today's Anaehoomalu Bay_A-Bay sea temperature is
27.5°C
0.9° 

Anaehoomalu Bay_A-Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Anaehoomalu Bay_A-Bay surf forecast from 22 Aug 2026:

  • Best quality surf: Sunday 23 Aug, 5AM (local time) - 1.5ft (0.4m), 12s period, NW swell with glassy winds.
  • Most powerful swell: Sunday 23 Aug, 11AM (local time) - 1.5ft (0.5m), 12s period, WNW swell with 75 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 5AM (local time) - 1.5ft (0.4m), 12s period with NW 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 (Aug 23) at 5AM. The primary swell is predicted to be 0.4m and 12s period with a secondary swell of 0.4m and 10s. 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 0.5m 12s and forecast to arrive on Sunday (Aug 23) at 11AM. 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 Saturday (Aug 22) at 2PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sun 23rd Aug)1.5ft (0.4m) 12s
Best Surf 5AM (Sun 23rd Aug)1.5ft (0.4m) 12s
Most Powerful11AM (Sun 23rd Aug)1.5ft (0.5m) 12s

Table - best surf conditions forecast for Anaehoomalu Bay_A-Bay over the next 16 days.


The Lowdown

Right folks, Rusty here. Gotta be straight with you – this 16-day window for the South Kohala coast is looking pretty bleak. We've got a long stretch of nothing much, with only a couple of brief windows where you might be able to get a wave, but honestly, they're nothing to write home about.

Looking at Anaehoomalu Bay, better known as A-Bay, the whole forecast period kicks off with a real dud. From Saturday the 22nd right through to Sunday the 30th of August, it's a desert. Days on end of flat, glassy conditions or tiny, weak swells that barely register. The combined swell energy is often in the single digits (70, 57, 8, 5...), which is about as weak as it gets. You'd be better off at the beach with a snorkel than a surfboard.

There’s one faint glimmer on Sunday afternoon, the 23rd of August. We get a tiny 1ft groundswell rolling in from the WNW with a decent 11-second period. The energy is a bit better at 116, and what’s more, it’s glassy. That's a rare combo of clean conditions, but with surf that small and that poor quality, it’s barely surfable. It’s the best on offer for that first week, but that’s not saying much.

After another flat spell, the first week of September looks a bit more active, but still nothing to get excited about. Mornings from the 1st to the 5th see a persistent onshore breeze from the West, which is a real bummer. The swell stays tiny at 1.0ft to 1ft, and the combined energy never really gets going (60, 55, 27…). The wind is just constantly blowing onshore, making it choppy and messy. For a reef and point break, that onshore wind is a killer.

The only other moment that might be worth a look is Sunday afternoon, September the 6th. We see a 1ft groundswell from the WNW again, with a long 15-second period. The energy jumps up to 77 and the wind goes glassy. It’s the same story as the 23rd of August – tiny, ordinary surf, but at least it's clean. That’s your other standout, but again, it’s a long way off and the swell is nothing special.

Honestly, for the entire 16 days, there's nothing with any real power. The biggest swell we see is just 2ft and even then the wind is cross or cross-on. The water temperature is a warm 82°F, which is about normal for this time of year. With such weak, onshore-affected surf, the setup here looks more interesting for a paddle board or a kite than a surfboard. Stay patient, folks – it can’t stay this poor forever.

Rusty.

Short Range Forecast

Light rain (total 5mm), mostly falling on Mon afternoon. Warm (max 29°C on Sat morning, min 26°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Some drizzle, heaviest during Tue afternoon. Warm (max 29°C on Wed afternoon, min 25°C on Tue night). Wind will be generally light.

Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
SW
15
0.5
W
11
0.5
WNW
10
0.5
WNW
12
0.4
WNW
11
0.3
WNW
10
0.2
WNW
12
0.1
NW
11
0.7
NE
6
0.8
NE
6
0.9
NE
6
0.2
W
11
0.7
NNE
5
0.8
NE
6
0.2
SSW
16
0.3
SSW
16
0.2
N
8
0.3
N
8
0.3
N
7
0.3
N
7
0.2
W
10
Wave Graph
Metric surfscale
Energy kJ
37
57
58
75
44
19
13
5
0
0
0
10
0
0
0
0
5
11
9
9
8
Wind (km/h)
5
NNW
5
N
5
ENE
10
NNE
5
NNE
0
NE
10
W
0
NE
5
NE
5
NW
5
N
15
NE
10
N
10
NNE
10
NE
5
NNW
5
N
5
NE
5
N
5
N
15
NE
Wind State
cross-on
cross-on
cross-off
cross
glassy
glassy
on
glassy
cross-off
glassy
cross
cross-off
cross
cross
cross-off
cross-on
glassy
cross-off
glassy
cross
cross-off
High Tide
12:57PM0.68m
00:46AM0.28m
1:38PM0.72m
1:33AM0.32m
2:12PM0.75m
2:09AM0.36m
2:42PM0.78m
2:44AM0.41m
3:11PM0.79m
3:18AM0.46m
3:38PM0.77m
3:53AM0.51m
4:04PM0.74m
4:30AM0.57m
Low Tide
8:47PM0.22m
5:53AM0.15m
9:01PM0.19m
6:48AM0.12m
9:18PM0.17m
7:33AM0.09m
9:36PM0.14m
8:14AM0.08m
9:55PM0.12m
8:54AM0.08m
10:14PM0.11m
9:34AM0.10m
10:34PM0.09m
clear
clear
clear
clear
rain showers
clear
clear
thunderstorm
thunderstorm
clear
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:05
6:05
6:05
6:05
6:05
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:46
6:45
6:45
6:44
6:44
6:43
6:42
 mm
1
3
1
1
Temp °C
29
29
27
28
29
27
28
28
27
28
28
27
27
29
27
28
28
26
27
28
26
Feels °C
32
33
31
31
32
31
32
33
32
32
32
29
28
30
30
30
31
30
30
31
28
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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