Rabbit/Manana Island Surf Break

Lat Long: 21.33° N 157.66° W

Rabbit/Manana Island Surf Forecast and Surf Report

Issued: 1 pm 30 Aug 2026 (local time)

Forecast update in  hr  min

Today's Rabbit/Manana Island sea temperature is
26.9°C
0.1° 

Rabbit/Manana Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Rabbit/Manana Island surf forecast from 31 Aug 2026:

  • Most powerful swell: Saturday 5 Sep, 8PM (local time) - 8ft (2.5m), 13s period, ENE swell with 2,224 kJ wave energy.

Best Forecast Surf Conditions for Rabbit/Manana Island this week:

The most powerful waves expected at Rabbit/Manana Island in the next 16 days are 2.5m 13s and forecast to arrive on Saturday (Sep 05) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 10s period and expected on Saturday (Sep 05) at 5AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8PM (Sat 5th Sep)8ft (2.5m) 13s

Table - best surf conditions forecast for Rabbit/Manana Island over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s cookin’ for Rabbit/Manana Island over the next couple of weeks, and I gotta be straight with you—this one is a tough run.

Right off the bat, the water temp is sittin’ at about 80°, which is pretty much normal for this time of year, so no surprises there. But the surf picture? Not great.

The whole first week and a bit is dominated by fresh to strong cross-onshore ENE winds, blowing 18 mph to 31 mph. We’ve got swell in the water—starting around 6 ft and climbing to 10 ft by Thursday 3rd September and Friday 4th September—but it’s all short-period junk, 7 to 8 seconds, with combined energy readings bouncing between 347 and 1247 – that’s moderate to strong energy, but it’s all wasted by the wind. The wave comment just keeps callin’ it “poor surf conditions,” and that’s exactly how it looks: lumpy, messy, and blown out.

Friday 4th September shifts to a strong cross-shore, but still messy with cross-chop. Saturday 5th September is a little more hopeful on paper—swell 8 ft to 8 ft, ENE 18 mph cross-shore—but there’s a risk of thunderstorms and the wave call is only “marginal” at best. Not one to get excited about.

Sunday 6th September into Monday 7th September, the swell period stretches to 12 seconds—that’s proper groundswell—and the heights are 7 ft to 10 ft, with combined energy jumping to 1863 then 2431. But it’s still cross-onshore wind, so the quality is poor. That long period stuff wants a point or reef to wrap around, not a beach break gettin’ hammered by wind.

Now, Tuesday 8th September is a standout in size only: 18 ft swell with 12-second period and a combined energy of 7595—that’s very strong energy. But the wind is onshore (NNE 22 mph) and the wave comment says poor. That’s serious power, but for experts only, and only if they’re desperate. For the average surfer, that’s a skip.

Wednesday 9th September is the one that’ll tug at your heart. The swell is 10 ft, 9-second period, ENE energy, but the wind goes light—ENE 3 mph and NNE 3 mph, with comments like “light cross-onshore with small wind ripples.” The wave comment says “wind and tide favorable, but the swell is predicted to be too big for this break.” That’s a classic case of too much of a good thing. Combined energy is still strong at 1415 and 1260. If you’re an expert and you know the break handles it, this is the morning and afternoon to look at.

Then Thursday 10th September morning is clean with cross-offshore SE wind at 9 mph, 7 ft, 8-second swell, combined energy 618. That’s actually decent—moderate energy, clean lines. Thursday afternoon gets even better: light S wind 6 mph going offshore, same 7 ft swell, and “expect very good surf conditions.” That’s the true highlight of the whole run. Friday 11th September morning, light SSE 3 mph cross-offshore, 7 ft, again clean. This two-day window (10th and 11th) is the best you’re gonna get. Crowds are listed as “sometimes,” so there could be a few others in the water, but with conditions that clean, it’s worth it.

After that, from Saturday 12th September onward, it’s back to cross-onshore wind and lumpy 5 ft to 7 ft short-period junk—nothing to write home about.

So, the bottom line: For Rabbit/Manana Island, the surf just isn’t cooperating for most of this stretch. The one true standout is Thursday 10th September afternoon and Friday 11th September morning—clean, offshore or cross-offshore wind, waist-to-chest high swell at 7 ft to 7 ft from the ENE, and that good 8-second period. It’s not huge, but it’ll be fun and rideable. Everything else is either blown out, too big, or both.

Keep your eyes on that Thursday-Friday window, and if you can get out there, do it.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Sun afternoon, min 25°C on Sun night). Mainly strong winds.

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Sat morning. Warm (max 26°C on Wed afternoon, min 25°C on Wed night). Winds decreasing (near gales from the ENE on Thu night, fresh winds from the ENE by Sat morning).

Sun
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
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
1
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
ENE
7
2
ENE
7
1.9
ENE
7
2
ENE
8
1.9
ENE
8
1.9
ENE
8
2
ENE
8
2
ENE
8
2.1
ENE
7
2
ENE
8
2.2
ENE
8
3
ENE
8
2.5
ENE
8
3
ENE
8
3
ENE
8
3
ENE
8
3
ENE
8
2.3
ENE
8
2.5
ENE
8
2.5
ENE
13
Wave Graph
Metric surfscale
Energy kJ
307
352
397
428
419
441
475
463
456
463
540
889
746
1221
1156
1045
929
703
915
1961
Wind (km/h)
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
40
ENE
35
ENE
35
ENE
35
ENE
40
ENE
50
ENE
45
ENE
50
ENE
45
ENE
40
ENE
35
ENE
30
ENE
30
ENE
30
ENE
Wind State
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross
High Tide
3:45PM0.56m
4:44AM0.51m
3:57PM0.51m
5:44AM0.52m
4:04PM0.47m
7:03AM0.52m
3:54PM0.43m
9:02AM0.54m
10:54AM0.59m
11:56AM0.64m
Low Tide
10:17PM0.05m
10:16AM0.20m
10:46PM0.03m
11:06AM0.27m
11:19PM0.02m
12:22PM0.33m
00:03AM0.02m
1:10AM0.03m
2:48AM0.04m
4:19AM0.02m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:13
6:13
6:13
6:13
6:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:47
6:46
6:46
6:45
6:45
6:44
6:43
 mm
3
5
2
Temp °C
26
25
25
25
25
25
26
25
26
26
26
25
25
25
26
26
26
26
26
26
Feels °C
23
22
21
22
22
22
24
22
24
23
24
20
20
20
22
22
22
25
26
25
  • Map Icons:
  • Break
  • 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 Rabbit/Manana Island Surf forecast

The above surf forecast table for Rabbit/Manana Island provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Rabbit/Manana Island can be found by selecting the local surf guide option on the grey menu. Our Rabbit/Manana Island 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 (Rabbit/Manana Island) 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 Rabbit/Manana Island 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.

Rabbit/Manana Island is 11 km (7 miles) from the city of Kailua. If you plan a vacation in Oahu, look for hotels and other accommodation in Kailua. Kailua has rooms for a wide range of budgets as well as car hire and transport links.

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