Rabbit/Manana Island Surf Break

Lat Long: 21.33° N 157.66° W

Rabbit/Manana Island Surf Forecast and Surf Report

Issued: 1 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Rabbit/Manana Island sea temperature is
26.8° 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 18 Aug 2026:

  • Best quality surf: Friday 21 Aug, 8AM (local time) - 2.5ft (0.7m), 7s period, NNE swell with cross-offshore winds.
  • Most powerful swell: Monday 24 Aug, 8PM (local time) - 10ft (3.0m), 8s period, ENE swell with 1,003 kJ wave energy.
  • Next surfable swell (1★+): Friday 21 Aug, 8AM (local time) - 2.5ft (0.7m), 7s period with NNE swell.

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

The surf forecast for Rabbit/Manana Island over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 8AM. The primary swell is predicted to be 0.7m and 7s period with a secondary swell of 0.6m and 7s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Rabbit/Manana Island in the next 16 days are 3.0m 8s and forecast to arrive on Monday (Aug 24) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 12s period and expected on Tuesday (Aug 25) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Fri 21st Aug)2.5ft (0.7m) 7s
Best Surf 8AM (Fri 21st Aug)2.5ft (0.7m) 7s
Most Powerful 8PM (Mon 24th Aug)10ft (3.0m) 8s

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


The Lowdown

G'day, Rusty here. Look, I’ve gotta be straight with you – the next couple of weeks are looking pretty grim for a proper paddle. Rabbit/Manana Island is the only game in town according to the charts, and it’s not shaping up to be much of a game at all.

The whole 16-day window is a tough slog. We’ve got a long stretch of poor surf conditions kicking off from Tuesday, August 18th, with messy, lumpy, cross-shore and cross-onshore winds just ruining what little swell is out there. The energy is low to moderate, with readings in the 100-200 range (158) for the first few days, and the swell is short-period, around 6-8 seconds, so it’s just weak and choppy. Water temps are about average for this time of year, nothing to write home about.

We’re looking at a gap of poor surf right through to Friday, August 21st. On Friday morning, there’s a brief flicker of hope. The wind swings light and offshore from the SE at just 3 mph, and the water cleans up. The swell is tiny, only 2 ft from the NNE, with weak energy (93) and a short period of 6 seconds. It’s surfable but very ordinary. That’s the only window with clean conditions in the first week, and it’s marginal at best.

Then it’s back to the wind. From Saturday, August 22nd, right through the end of the month, the trades come howling back. The swell picks up, hitting 5 ft to 8 ft, with moderate to strong energy (213 to 651), but the wind is relentless – fresh to strong breezes from the ENE, all cross or cross-onshore. The wave comment is consistently “poor surf conditions,” with lumpy, messy, and choppy water. For a beach setup like this, it’s getting more interesting for kite surfing than paddle surfing. The swell is over 5 ft, so it’s getting too big for beginners, and by the 24th, it’s over 8 ft, so only for experts, but with that wind, even experts will struggle.

The second week doesn’t offer any relief. The pattern holds through the 1st and 2nd of September – more ENE wind, more cross-onshore chop, and the swell drops back to under 3 ft. Energy is low (144 to 119). There’s no standout session. The best you can say is that Friday, August 21st morning is the only time the wind gets out of the way, but it’s barely a ripple.

So, if you’re desperate, the Friday morning window is the pick. It’s clean, but tiny. Otherwise, this is a blank run. The area isn’t known for consistent surf, and this forecast shows why. Keep your eyes on the horizon, but don’t hold your breath.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Wed afternoon, min 24°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

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

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
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
1
1
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)
1.3
ENE
7
1.1
ENE
7
1.1
ENE
8
0.8
E
8
0.8
E
8
0.8
E
8
0.7
E
8
0.7
E
8
0.8
E
7
0.7
NNE
7
0.8
E
7
1.3
ENE
7
1.5
E
6
1.8
E
6
2
E
7
2.1
ENE
7
1.9
ENE
7
2.1
ENE
7
2.3
ENE
7
2.5
ENE
8
2.5
ENE
8
Wave Graph
Metric surfscale
Energy kJ
149
136
143
89
84
84
58
55
70
38
61
141
188
259
360
419
336
397
542
800
893
Wind (km/h)
25
ENE
25
ENE
25
ENE
20
NE
20
NE
20
NE
15
NE
15
NE
5
NE
5
ESE
10
E
20
ENE
25
ENE
35
ENE
35
ENE
40
ENE
40
NE
40
ENE
45
ENE
45
ENE
40
ENE
Wind State
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-off
cross-off
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
High Tide
8:02AM0.45m
4:17PM0.43m
10:23AM0.47m
11:48AM0.51m
12:32PM0.55m
1:04PM0.58m
10:27PM0.27m
1:31PM0.61m
11:46PM0.30m
1:55PM0.63m
00:27AM0.33m
Low Tide
12:27PM0.33m
00:26AM0.08m
1:15AM0.09m
2:41AM0.09m
4:16AM0.08m
9:18PM0.23m
5:19AM0.05m
8:24PM0.22m
6:03AM0.02m
8:21PM0.21m
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:09
6:09
6:11
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
6:57
6:57
6:55
6:54
6:53
6:52
 mm
Temp °C
25
25
25
25
26
25
25
26
26
26
27
26
26
26
25
25
25
25
25
25
25
Feels °C
23
23
24
25
26
25
27
27
29
30
30
28
25
25
24
23
22
23
22
20
21
  • 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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