Rabbit/Manana Island Surf Break

Lat Long: 21.33° N 157.66° W

Rabbit/Manana Island Surf Forecast and Surf Report

Issued: 1 pm 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Rabbit/Manana Island sea temperature is
26.6° 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 20 Aug 2026:

  • Most powerful swell: Monday 24 Aug, 2AM (local time) - 7ft (2.2m), 7s period, ENE swell with 435 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 2.2m 7s and forecast to arrive on Monday (Aug 24) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 18s period and expected on Wednesday (Aug 26) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2AM (Mon 24th Aug)7ft (2.2m) 7s

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


The Lowdown

Alright folks, Rusty here. Let’s get straight into it. The 16-day outlook for the Rabbit/Manana Island area is a bit of a tough one, with a long stretch of pretty ordinary conditions before a potential glimmer of hope right at the end. We’re looking at a solid block of poor surf for the rest of August, with no real standouts to speak of. The water temp is sitting at 80°, which is about average for this time of year, so nothing unusual there.

The story starts now and it’s a grim one. From Wednesday afternoon the 19th of August right through to the end of the month, the score is a flat zero. It’s all cross-onshore winds, choppy, lumpy, and messy. The swell is small and weak for the first week, with combined wave energy barely cracking 100 to 200 (188 to 296). The swell direction is mostly ENE, but the period is short, between 6 and 8 seconds, so it’s all windslop and no power. That ENE wind just won’t let up, and the surf is poor. The waves get a bit bigger later in the month, up to 7ft, but the wind is still ripping, and the energy jumps up to 573, but it’s still a mess. The wave comment says it all: “poor surf conditions.” This stretch is a write-off.

Then we hit a gap. From the 31st of August through the 1st of September, the swell gets bigger, pushing 8ft to 8ft, and the energy ramps up hard to 1085, then 1818. But the wind is still cross-onshore, and the surf is still rated poor. The period on the 1st of September morning jumps to 12 seconds, a proper groundswell, but it’s wasted with that wind. The wave comment is “poor surf conditions.” For a beach break like Rabbit/Manana, that long period and strong onshore wind would make for a nasty, blown-out mess. Probably more interesting for kite surfing than paddle surfing.

Finally, the payoff. On the 2nd of September, Wednesday, things look like they might come together. The morning still has a cross-onshore breeze and a marginal score, with 8ft swell from the ENE and a period of 9 seconds, energy at 888. But the real standout is the afternoon of the 2nd of September. The wind swings to light offshore from the south, a clean 6 mph. The swell stays at 8ft from the ENE, period drops to 8 seconds, but with light offshore wind, the comment says “expect very good surf conditions.” That’s the one to circle. The 3rd of September morning also looks clean, with a light cross-offshore breeze from the SSE, 7ft swell from the ENE, and a score of 3. The energy is still strong at 612. The 3rd of September afternoon goes back to a cross-shore breeze and a marginal score, so the window is in the afternoon of the 2nd and the morning of the 3rd.

That’s pretty much it. A long, dry spell, then a couple of sessions that could be proper good. Keep an eye on that wind shift. It’s a long way out, so treat the 2nd and 3rd of September as promising but not locked in. The rest of the time, leave the board at home.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 27°C on Fri afternoon, min 25°C on Wed afternoon). Winds increasing (calm on Fri morning, fresh winds from the ENE by Sat morning).

Days 5-7 Weather Summary

Some drizzle, heaviest during Mon afternoon. Warm (max 26°C on Mon morning, min 25°C on Sat afternoon). Winds decreasing (strong winds from the ENE on Sun morning, moderate winds from the E by Tue morning).

Wed
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
ENE
8
0.9
E
8
0.9
NE
7
1.2
ENE
7
0.8
ENE
7
0.7
NE
7
0.9
ENE
7
1.3
ENE
7
1.5
E
6
1.8
E
6
2.1
E
7
2.1
E
7
2.2
ENE
7
2.2
ENE
7
1.9
E
6
1.8
E
7
1.8
E
7
1.7
E
8
1.5
E
8
1.4
ENE
8
Wave Graph
Metric surfscale
Energy kJ
188
102
63
138
73
47
86
137
188
276
432
427
410
435
307
311
302
359
280
226
Wind (km/h)
25
ENE
20
NE
15
NE
15
NNE
5
ENE
10
ENE
15
ENE
15
E
35
ENE
40
ENE
40
ENE
45
ENE
45
ENE
45
ENE
35
ENE
30
ENE
25
ENE
20
E
20
ENE
25
ENE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
cross
High Tide
11:48AM0.51m
12:32PM0.55m
1:04PM0.58m
10:27PM0.27m
1:31PM0.61m
11:46PM0.30m
1:55PM0.63m
00:27AM0.33m
2:17PM0.65m
1:04AM0.37m
Low Tide
1:15AM0.09m
2:41AM0.09m
4:16AM0.08m
9:18PM0.23m
5:19AM0.05m
8:24PM0.22m
6:03AM0.02m
8:21PM0.21m
6:39AM-0.00m
8:32PM0.20m
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
thunderstorm
part cloud
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:11
6:11
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:57
6:57
6:55
6:54
6:53
6:52
6:52
 mm
1
Temp °C
26
25
25
26
26
26
27
27
26
25
25
25
25
25
26
26
26
26
27
26
Feels °C
25
25
27
28
29
30
28
30
25
22
22
22
21
21
25
25
26
26
28
26
  • 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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