
Surf Forecasts:
Rabbit/Manana Island surf forecast from 4 Aug 2026:
- Most powerful swell: Tuesday 4 Aug, 2AM (local time) - 5ft (1.6m), 12s period, ENE swell with 689 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 1.6m 12s and forecast to arrive on Tuesday (Aug 04) 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 0.3m 12s period and expected on Thursday (Aug 06) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Tue 4th Aug) | 5ft (1.6m) 12s |
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. We’ve got a 16-day window on the cards for Rabbit/Manana Island, but I’ll be honest with you – it’s a tough stretch. The wind is the main villain here, and it doesn’t let up. There’s a gap right at the start with no real surf to speak of until the first recommendation pops up.
Monday, 3rd August afternoon sees the first bit of swell, but it’s a write-off. We’ve got a 5ft swell from the ENE with a short 8-second period, and a fresh 19 mph cross-onshore wind from the NE. The water is sitting at 27°, which is about normal for this time of year. The combined energy is moderate (374), but it’s messy and lumpy – not worth paddling out for.
Tuesday, 4th August morning is the best we’ll see all week, and it’s still only a marginal call. The swell drops to 5ft, but the period stretches to a solid 11 seconds, which gives it some proper groundswell grunt. The wind is a gentle 9 mph cross-shore from the ENE, making for the cleanest conditions on offer. The combined energy is moderate (452). This is the one window where the offshore wind direction (S) in the guidance would really shine, and the swell is coming from the ENE, which is slightly off the optimum NNE, but it’s the best we’ve got. The break is fairly consistent, and it’s exposed, so it’ll pick up that energy. Crowds are possible here, so get out early if you can. After that, it’s a long, grim run.
From Tuesday afternoon right through to Monday, 18th August, it’s a desert. Every single session is flagged as poor. The wind stays locked in from the ENE, blowing cross-on or cross at 16 to 28 mph, turning any swell into a lumpy, choppy mess. Swell heights bounce around between 2ft and 4ft with short, weak periods, and even when it builds to 6ft or 7ft towards the second week, the wind is just too strong – fresh to strong breeze territory. The combined energy climbs from a weak 88 up to a moderate 703, but it’s all wasted on those horrible onshore conditions. For a beach-and-reef setup, this is looking more interesting for kite surfers than paddle surfers, honestly.
There’s a bit of a tease on Thursday, 14th August with a 8ft to 8ft swell from the ENE, but it’s accompanied by a 25 mph cross-onshore wind and a combined energy of 603 to 703. That’s a lot of energy, but it’s messy, and for most surfers, that size with that wind is just a washing machine. That’s expert-only territory, and even then, it’s not pretty.
The Standout: The only real window that’s worth a look is Tuesday, 4th August morning. It’s not a classic, but it’s the cleanest we get. The 5ft groundswell with that 11-second period and gentle cross-shore wind will give you the best chance of a clean wave. It’s a marginal call, but it’s the only one. Get it while you can.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Mon afternoon, min 25°C on Mon afternoon). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Sat night. Warm (max 25°C on Thu afternoon, min 25°C on Thu afternoon). Mainly strong winds. | |||||||||||||||||||
Mon 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | ||||||||||||||
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 12 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 5 | ENE 5 | ENE 5 | ENE 6 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 7 |
Wave Graph | ||||||||||||||||||||
294 | 689 | 452 | 436 | 492 | 312 | 237 | 88 | 181 | 56 | 32 | 43 | 64 | 237 | 233 | 219 | 346 | 340 | 397 | 337 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 5:09PM0.52m | 7:16AM0.41m | 5:14PM0.48m | 9:27AM0.45m | 4:57PM0.44m | 11:19AM0.53m | 12:18PM0.61m | 1:01PM0.68m | 1:40PM0.72m | 11:41PM0.30m | ||||||||||
Low Tide | 00:22AM0.07m | 11:44AM0.27m | 1:03AM0.04m | 1:35PM0.35m | 1:59AM0.02m | 3:11AM-0.00m | 4:25AM-0.03m | 5:29AM-0.07m | 8:45PM0.24m | |||||||||||
— | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | |
7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:06 | — | — | 7:05 | — | — | 7:05 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — |
Temp °C | 26 | 25 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 25 | 24 | 28 | 27 | 27 | 25 | 24 | 25 | 25 | 24 | 24 | 23 | 23 | 25 | 23 | 22 | 22 | 23 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | E 12 | ENE 9 | ENE 11 | ENE 11 | S 13 | NNE 9 | NNE 8 | ENE 9 | NNW 8 | ENE 8 | ENE 8 | ENE 7 | NE 9 | N 7 | NE 10 | NE 10 | SSW 13 | SSW 13 | S 18 | S 16 |
76 | 297 | 452 | 436 | 14 | 8 | 7 | 88 | 13 | 56 | 32 | 21 | 19 | 4 | 27 | 17 | 17 | 17 | 24 | 20 | |
Swell 2 Height (m) Direction Period (s) | N 7 | E 12 | SSW 12 | SSW 12 | NNE 9 | S 13 | S 12 | S 12 | S 12 | NNW 8 | NNW 7 | NNW 7 | NNW 7 | SW 14 | N 6 | N 6 | SSW 18 | S 17 | SSW 12 | SSE 10 |
4 | 101 | 14 | 13 | 8 | 13 | 12 | 11 | 11 | 12 | 11 | 10 | 9 | 8 | 3 | 3 | 30 | 24 | 15 | 9 | |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SSE 12 | SSE 13 | SSW 11 | SSW 11 | SSW 11 | NNE 8 | N 8 | S 11 | S 11 | NE 10 | NE 12 | SW 19 | SSW 14 | SSW 14 | S 10 | SSE 10 | SSE 10 | SSW 12 |
15 | 14 | 15 | 16 | 12 | 11 | 11 | 6 | 5 | 10 | 9 | 14 | 23 | 15 | 20 | 19 | 8 | 9 | 9 | 14 | |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 12 | — | — | ENE 10 | ENE 10 | ENE 9 | ENE 5 | ENE 8 | ENE 5 | ENE 5 | ENE 5 | ENE 5 | ENE 6 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 7 |
294 | 689 | — | — | 492 | 312 | 237 | 44 | 181 | 33 | 31 | 43 | 64 | 237 | 233 | 219 | 346 | 340 | 397 | 337 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 55 | 19 | 9 | 9 | 19 | 19 | 19 | 19 | 19 | 48 | 19 | 19 | 48 | 48 | 55 | 55 | 48 | 49 | 55 | 48 |
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.











