Surf Forecasts:
Rabbit/Manana Island surf forecast from 9 Aug 2026:
- Most powerful swell: Saturday 15 Aug, 8PM (local time) - 11ft (3.5m), 9s period, ENE swell with 2,112 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 3.5m 9s and forecast to arrive on Saturday (Aug 15) 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 0.7m 18s period and expected on Wednesday (Aug 12) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Sat 15th Aug) | 11ft (3.5m) 9s |
Table - best surf conditions forecast for Rabbit/Manana Island over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's be straight with you – the outlook for Rabbit/Manana Island over the next couple of weeks is pretty grim, so don't get your hopes up. We're looking at a long stretch of nothing special, with only one real possibility to maybe get wet.
The water temp is sitting at about 80°, which is pretty much average for this time of year.
For the first week, it's a write-off. From Saturday the 8th right through to Sunday the 16th, we're stuck with fresh to strong cross-onshore winds and lumpy, messy conditions. The sea state is just ugly, and the wave comment across every single session is "poor surf conditions." There's no way around it – it’s not worth paddling out. The swell energy stays moderate, but it's all blown out. By the 14th and 15th, the swell bumps up to 8ft to 12ft, but it doesn't matter because it's accompanied by 25-28 mph cross-onshore winds.
Now, there is a flicker of hope on Monday, the 17th of August. We get a brief window of cleaner conditions with a light cross-offshore breeze. The swell is a manageable 7ft out of the ENE with a period of 8 seconds, and the wave comment says "expect very good surf conditions." The combined swell energy is moderate (629). This is the true standout. But don't sleep on it – it’s just the morning session, and by the afternoon it gets shaky again with a cross-shore chop.
After that, we’re right back into the gutter. From Monday afternoon through to the 23rd, it's back to the same story: moderate to fresh cross-onshore winds, lumpy surf, and "poor surf conditions." The swell stays in the 4ft to 6ft range with a short period, so no quality to speak of.
So, there you have it. If you’ve got a free Monday morning on the 17th of August, that’s your best bet. The rest of the 16-day window? Honestly, it might be more interesting for the kitesurfers with all that wind.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sat afternoon, min 25°C on Sat night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Tue afternoon, min 25°C on Tue afternoon). Mainly strong winds. | |||||||||||||||||||
Sat 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | ENE 6 | ENE 6 | ENE 7 | ENE 8 | ENE 7 | E 7 | ENE 8 | E 7 | ENE 7 | E 7 | E 6 | ENE 7 | ENE 6 | E 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | E 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 172 | 225 | 245 | 273 | 285 | 251 | 273 | 238 | 208 | 238 | 182 | 152 | 165 | 247 | 261 | 316 | 371 | 558 | 711 | 1041 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 1:40PM0.72m | 11:41PM0.30m | 2:17PM0.74m | 00:48AM0.34m | 2:50PM0.74m | 1:43AM0.37m | 3:21PM0.72m | 2:36AM0.40m | 3:49PM0.69m | 3:28AM0.42m | 4:12PM0.63m | 4:22AM0.43m | ||||||||
Low Tide | 5:29AM-0.07m | 8:45PM0.24m | 6:24AM-0.09m | 8:55PM0.22m | 7:12AM-0.10m | 9:16PM0.20m | 7:57AM-0.08m | 9:41PM0.17m | 8:39AM-0.03m | 10:07PM0.14m | 9:20AM0.03m | 10:33PM0.12m | ||||||||
 |  | | |  | | | | | | | |  | | | | | | | | |
 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — |
 | 7:05 | — | — | 7:05 | — | — | 7:04 | — | — | 7:02 | — | — | 7:02 | — | — | 7:01 | — | — | 7:00 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 25 | 26 | 26 |
Feels °C | 24 | 23 | 23 | 24 | 24 | 25 | 24 | 25 | 24 | 24 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 21 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | NE 9 | NE 9 | NNW 11 | NNW 10 | NNW 9 | NNW 8 | NNW 8 | SSW 15 | SSW 14 | SSW 14 | S 18 | S 18 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 |
| kJ | 19 | 14 | 13 | 23 | 33 | 27 | 24 | 13 | 42 | 40 | 62 | 155 | 152 | 257 | 183 | 161 | 159 | 107 | 102 | 61 |
Swell 2 Height (m) Direction Period (s) | N 6 | SSW 13 | SSW 13 | S 18 | S 16 | SSW 16 | SSW 15 | SSW 15 | NNW 8 | NNW 7 | S 20 | SSW 13 | SSW 13 | NNW 7 | NNW 9 | NNW 8 | NNW 8 | ESE 13 | ESE 12 | NNW 9 |
| kJ | 3 | 17 | 17 | 24 | 20 | 49 | 45 | 44 | 11 | 5 | 119 | 56 | 55 | 5 | 8 | 6 | 6 | 34 | 50 | 8 |
Swell 3 Height (m) Direction Period (s) | SSE 10 | S 10 | N 12 | SSW 12 | SSE 10 | NE 8 | SSW 12 | SSE 9 | S 11 | SSE 9 | NNW 7 | NNW 7 | NNW 7 | S 20 | — | E 11 | E 15 | NW 8 | NW 10 | SE 16 |
| kJ | 9 | 8 | 11 | 15 | 9 | 11 | 14 | 8 | 10 | 8 | 5 | 5 | 5 | 8 | — | 3 | 4 | 3 | 4 | 10 |
Wind waves Height (m) Direction Period (s) | ENE 6 | ENE 6 | ENE 7 | ENE 8 | ENE 7 | E 7 | ENE 8 | E 7 | ENE 7 | E 7 | E 6 | ENE 7 | ENE 6 | E 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | E 8 |
| kJ | 172 | 225 | 245 | 273 | 285 | 251 | 273 | 238 | 208 | 238 | 182 | 152 | 165 | 247 | 261 | 316 | 371 | 558 | 711 | 1041 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 55 | 48 | 48 | 54 | 48 | 48 | 48 | 48 | 48 | 49 | 48 | 48 | 55 | 48 | 55 | 59 | 49 | 59 | 112 | 59 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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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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