Anaehoomalu Bay_A-Bay Surf Break

Lat Long: 19.92° N 155.89° W

Anaehoomalu Bay_A-Bay Surf Forecast and Surf Report

Issued: 1 pm 05 Sep 2026 (local time)

Forecast update in  hr  min

Today's Anaehoomalu Bay_A-Bay sea temperature is
27.6°C
0.8° 

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 6 Sep 2026:

  • Best quality surf: Monday 7 Sep, 8PM (local time) - 6ft (1.8m), 14s period, WSW swell with glassy winds.
  • Most powerful swell: Monday 7 Sep, 11PM (local time) - 6ft (1.9m), 14s period, WSW swell with 1,422 kJ wave energy.
  • Next surfable swell (1★+): Sunday 6 Sep, 8PM (local time) - 3.5ft (1.0m), 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 8PM. The primary swell is predicted to be 1.0m 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 1.9m 14s and forecast to arrive on Monday (Sep 07) at 11PM. 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 11s period and expected on Sunday (Sep 06) at 5AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sun 6th Sep)3.5ft (1.0m) 12s
Best Surf 8PM (Mon 7th Sep)6ft (1.8m) 14s
Most Powerful11PM (Mon 7th Sep)6ft (1.9m) 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 stretch.

Straight up, this is gonna be a tough one for the paddle crew. We’re looking at a long, dry patch with barely a pulse of energy for most of the 16-day window. The first real glimmer of something surfable doesn’t show up until Monday the 7th, and even then, it’s not exactly setting the world on fire. Before that, we’ve got a few days of flat, glassy conditions – great for a swim, not so much for a surf.

The standout, and really the only window worth getting excited about, is the Monday afternoon through Tuesday afternoon period. Let’s break it down.

Anaehoomalu Bay (A-Bay) – This reef and point break is our only real option. The water temp is sitting at 82°F, which is about 1°F warmer than usual for this time of year – nothing crazy, just a little toastier than normal.

The first hint of life comes in on Monday morning (September 7th) with a small 4ft SW swell, but it’s the afternoon that grabs your attention. We get a solid 6ft groundswell out of the WSW, with a long period of 15 seconds. That’s proper energy rolling in, with a combined energy reading of 1158 – that’s moderate to strong stuff. The catch? The wind is light cross-onshore, so it’s not perfect, but it’s rideable for the intermediate crew.

Tuesday morning (September 8th) keeps the 6ft swell going from the WSW, period dropping to 12 seconds, but still plenty of push (872 energy). Wind is light offshore from the W, which will clean up the faces nicely. Then Tuesday afternoon is where it’s at: glassy conditions, 6ft swell from the W at 11 seconds. That’s a really good window of clean, lined-up waves at A-Bay. The swell direction is a touch off the optimum WNW, but it’s close enough to work.

Now, keep in mind, this is a consistent spot, but it can get crowded sometimes. The 6ft to 6ft range is a fun size for intermediates, but it’s not a beginner wave at that size. For the experts, it’s a fun size, but not a big-wave day.

After that Tuesday afternoon glass-off, the plug gets pulled. From Wednesday the 9th onward, it’s a long, slow slide into tiny, weak scraps. The swell drops to 2ft on Wednesday morning, then 2ft, and then we’re into the 1.0ft and 0.3ft range for the rest of the forecast. There’s a very long period swell (16-18 seconds) on the 10th, but with only 1.0ft of height, it’s just a wobble on the water. The combined energy readings drop to double digits, then single digits – basically flat. A few glassy afternoons pop up, but there’s no swell to ride.

So, the call is simple: if you’ve got a board under your arm, your best bet is to aim for Tuesday afternoon (September 8th) at A-Bay. That’s the one clean, glassy window with a decent swell. After that, it’s a waiting game for the next pulse. It’s a bummer, but that’s how it goes sometimes. Keep your eyes on the horizon, folks.

Rusty.

Short Range Forecast

Light rain (total 4mm), mostly falling on Sun night. Warm (max 29°C on Tue morning, min 26°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 28°C on Tue afternoon, min 25°C on Thu night). Wind will be generally light.

Sat
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
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
2
1
2
3
2
3
2
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)
0.8
SSW
12
0.7
SW
11
0.8
SW
11
0.9
SW
12
1.1
SW
12
1.2
SW
14
1.7
WSW
15
1.9
WSW
13
1.8
WSW
12
1.7
W
11
1.1
W
10
0.7
WNW
9
0.5
W
7
0.3
WNW
6
0.3
SW
16
0.3
SW
18
0.4
SW
16
0.4
SW
16
0.4
SW
15
0.4
SW
15
Wave Graph
Metric surfscale
Energy kJ
0
0
0
0
341
532
1158
1283
872
726
250
80
28
8
42
49
0
0
0
0
Wind (km/h)
5
W
5
NE
10
WNW
5
WNW
5
NNE
5
NW
5
WSW
0
WNW
10
W
5
W
0
NNE
10
W
5
WNW
5
NNE
10
NNE
5
WSW
5
SW
10
WNW
5
NW
0
NNE
Wind State
on
glassy
on
glassy
glassy
on
cross-on
glassy
on
glassy
glassy
on
glassy
glassy
cross
cross-on
cross-on
on
glassy
glassy
High Tide
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
3:23PM0.75m
3:52AM0.61m
3:54PM0.69m
4:30AM0.66m
Low Tide
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
8:58AM0.09m
9:51PM0.06m
9:44AM0.11m
10:13PM0.06m
clear
clear
part cloud
thunderstorm
light rain
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:09
6:09
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:35
6:34
6:32
6:31
6:30
6:30
6:30
 mm
2
2
Temp °C
28
27
28
27
27
28
28
28
29
28
27
28
28
27
28
28
26
27
27
26
Feels °C
32
32
31
31
31
32
32
33
33
32
32
32
32
32
31
31
30
28
29
30
  • 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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