
Surf Forecasts:
Rabbit/Manana Island surf forecast from 10 Aug 2026:
- Best quality surf: Sunday 16 Aug, 2AM (local time) - 11ft (3.5m), 11s period, ENE swell with cross-offshore winds.
- Most powerful swell: Sunday 16 Aug, 2PM (local time) - 21ft (6.5m), 12s period, ENE swell with 10,957 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 2AM (local time) - 11ft (3.5m), 11s period with ENE 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 Sunday (Aug 16) at 2AM. The primary swell is predicted to be 3.5m and 11s period. 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 6.5m 12s and forecast to arrive on Sunday (Aug 16) at 2PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Monday (Aug 17) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 16th Aug) | 11ft (3.5m) 11s |
| Best Surf | 2AM (Sun 16th Aug) | 11ft (3.5m) 11s |
| Most Powerful | 2PM (Sun 16th Aug) | 21ft (6.5m) 12s |
Table - best surf conditions forecast for Rabbit/Manana Island over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s talk about the surf outlook for Rabbit/Manana Island. Honestly, for the next 16 days, it’s a real mixed bag with a lot of waiting and one wild, giant-sized window for the brave.
Right now and through the first week, it’s mostly a write-off. The trades are howling from the ENE, blowing cross to cross-onshore, and the swell is small, short-period stuff – mostly around 4ft to 5ft, with periods of 6 to 8 seconds. Combined swell energy sits between 140 and 260, which is weak to moderate, but the wind just wrecks it. The water temp is 80°, which is about average for this time of year. Don’t bother paddling out; it’s lumpy and choppy. From Monday 10th right through to Friday 14th, it’s all "poor surf conditions," day in, day out. Saturday 15th gets bigger, but the wind is onshore and messy, making it a washing machine.
The standout – and it’s a massive one – is Sunday, August 16th. A serious pulse of ENE groundswell rolls in, with sizes jumping to 16ft in the morning and 20ft in the afternoon. The period is 11 to 12 seconds, which is solid groundswell energy, and the combined swell energy goes nuclear: 6683 and then 8461. That’s very strong to extreme energy. The wind clocks around to a clean offshore from the SSE, and the note says wind and tide are favorable. But… there’s the catch: the forecast says the swell is predicted to be too big for this break. With waves over 8ft, this is expert-only territory. If you’re a seasoned charger with the right craft and the nerve, it could be a day of a lifetime at this exposed spot. For everyone else, it’s a day to watch from the cliff and take photos. Crowds are possible here, but on a day like that, most will stay on the beach.
After that, things settle back down quickly. Monday, August 17th, the swell drops to 6ft with a 9-second period, and while the wind is a gentle cross-shore, the notes say it’s "marginal" with questionable tide. It’s a maybe for a skilled surfer, but nothing special. From Tuesday 18th onward, it’s back to the same old story: cross to cross-onshore ENE winds, messy waves, and weak energy. That pattern holds all the way to Tuesday, August 25th, with no real quality on offer. So, to sum it up: you’ve got a solid week and a half of poor conditions, one massive but risky Sunday, and then another week of wind-affected slop. If you’re after a good, clean paddle session, this isn’t your window unless you’re an expert with a death wish on the 16th.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Mon morning, min 25°C on Tue night). Mainly fresh winds. | Days 4-6 Weather SummaryHeavy rain (total 42mm), heaviest during Sat night. Warm (max 26°C on Thu morning, min 25°C on Thu night). Winds increasing (fresh winds from the NE on Thu morning, severe gales from the SSW by Sat night). | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
AM | 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 8 | ENE 8 | E 7 | ENE 7 | ENE 7 | E 7 | ENE 6 | ENE 6 | E 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | E 12 | ENE 11 | ENE 12 | ENE 11 | ENE 12 | ENE 11 | ENE 9 |
Wave Graph | |||||||||||||||||||||
202 | 218 | 215 | 181 | 160 | 176 | 160 | 153 | 182 | 172 | 249 | 371 | 440 | 561 | 1775 | 1597 | 2804 | 2872 | 6683 | 8461 | 1230 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-off | off | off | cross-off |
High Tide | 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 | 4:30PM0.58m | 5:20AM0.44m | 4:40PM0.52m | ||||||||
Low Tide | 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 | 10:00AM0.11m | 10:59PM0.09m | 10:41AM0.19m | 11:25PM0.08m | ||||||||
6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | |
— | 7:04 | — | — | 7:02 | — | — | 7:02 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 39 | 15 | 2 | 2 |
Temp °C | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 27 | 26 |
Feels °C | 26 | 25 | 26 | 25 | 24 | 22 | 24 | 22 | 25 | 24 | 23 | 22 | 21 | 22 | 22 | 24 | 23 | 22 | 22 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | 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 | E 12 | S 14 | S 13 | S 13 | S 14 | S 16 | S 16 | ENE 9 |
27 | 24 | 13 | 42 | 40 | 62 | 155 | 152 | 257 | 183 | 161 | 159 | 107 | 77 | 97 | 55 | 54 | 62 | 84 | 80 | 1230 | |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 15 | NNW 8 | NNW 7 | S 20 | SSW 13 | SSW 13 | NNW 7 | NNW 8 | NNW 8 | NNW 7 | ESE 11 | S 14 | NNW 9 | NNW 8 | S 19 | S 18 | S 16 | S 16 | S 13 |
49 | 45 | 44 | 11 | 5 | 119 | 55 | 55 | 5 | 7 | 6 | 5 | 41 | 102 | 8 | 7 | 7 | 25 | 132 | 127 | 55 | |
Swell 3 Height (m) Direction Period (s) | NE 8 | SSE 10 | SSE 9 | S 11 | SSE 9 | NNW 7 | NNW 7 | NNW 7 | S 9 | S 9 | — | — | NW 7 | NW 7 | SW 17 | S 20 | S 16 | SSW 16 | W 12 | W 12 | S 16 |
11 | 9 | 8 | 10 | 8 | 5 | 5 | 5 | 2 | 2 | — | — | 2 | 2 | 12 | 7 | 5 | 25 | 25 | 25 | 45 | |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | E 7 | ENE 7 | ENE 7 | E 7 | ENE 6 | ENE 6 | E 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | E 12 | ENE 11 | ENE 12 | ENE 11 | ENE 12 | ENE 11 | SSE 6 |
202 | 218 | 215 | 181 | 160 | 176 | 160 | 153 | 182 | 172 | 249 | 371 | 440 | 561 | 1775 | 1597 | 2804 | 2872 | 6683 | 8461 | 181 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 48 | 48 | 19 | 48 | 48 | 19 | 48 | 111 | 48 | 48 | 111 | 55 | 142 | 112 | 50 | 152 | 216 | 223 | 132 | 54 | 54 |
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.











