Surf Forecasts:
Rabbit/Manana Island surf forecast from 19 Aug 2026:
- Most powerful swell: Monday 24 Aug, 2PM (local time) - 10ft (3.0m), 8s period, E swell with 1,121 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 3.0m 8s and forecast to arrive on Monday (Aug 24) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 12s period and expected on Sunday (Aug 23) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Mon 24th Aug) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Rabbit/Manana Island over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s ahead for our local stretch.
To be straight with you, the next 16 days are a tough watch. From now through to the end of August, the wind is just relentless from the ENE, blowing cross-onshore day after day. The swell is small to moderate, but the wind messes up any chance of clean waves. We’re looking at moderate to strong cross-onshore conditions, making everything choppy and lumpy. There’s a real gap here with no surf worth paddling out for right through to the start of September.
The only real standout in this entire run is on Tuesday the 1st of September and into Wednesday the 2nd. We get a big pulse of energy from the east. The combined swell energy jumps massively, hitting 2447 on Tuesday afternoon and then 2489 on Wednesday morning. That’s a very strong push of power. Swell heights are around 8 ft, with a long period of 13 seconds on Tuesday afternoon, easing to 12 seconds through Wednesday. That’s a proper groundswell. Periods that long mean the waves will have real shape and power, but at a beach break like Rabbit/Manana Island, it can break a bit too straight and close out. It’s expert-only territory at that size. The wind is still cross-onshore though, from the NE at 25 mph, so it’s going to be messy and lumpy. The water temp is about average for this time of year. For anyone thinking of a paddle, those two days hold the most energy, but the wind is a real problem. Honestly, with that much wind and solid swell, this setup looks more interesting for kite surfing than paddle surfing.
Keep an eye on the forecasts, because a blank run like this can change, but for now, it’s a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Fri afternoon, min 24°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 30mm), heaviest during Mon night. Warm (max 26°C on Sat morning, min 24°C on Mon afternoon). Winds decreasing (near gales from the NE on Sun night, moderate winds from the ENE by Mon night). | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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) | E 8 | ENE 8 | E 8 | E 8 | E 8 | NE 7 | NE 7 | ENE 7 | ENE 7 | ENE 6 | E 7 | ENE 7 | ENE 6 | ENE 6 | ENE 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 89 | 176 | 80 | 57 | 54 | 119 | 112 | 117 | 141 | 123 | 200 | 317 | 231 | 422 | 500 | 970 | 1046 | 720 | 476 | 341 | 303 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on |
High Tide | 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 | 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 | |||||||||||
 | |  |  | |  | | | | | | | | |  |  |  | | | | | |
 | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — |
 | — | 6:57 | — | — | 6:57 | — | — | 6:55 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 6 | 22 | 7 | 4 | 1 |
Temp °C | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 27 | 27 | 26 | 26 | 25 | 25 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 26 |
Feels °C | 25 | 25 | 24 | 26 | 28 | 29 | 29 | 28 | 28 | 24 | 24 | 23 | 22 | 22 | 21 | 21 | 22 | 22 | 25 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | NE 6 | S 12 | E 8 | NE 6 | NNE 7 | NE 7 | NE 7 | ESE 8 | SSW 16 | ESE 8 | SSW 16 | SSE 14 | ESE 10 | NW 11 | ESE 11 | NW 12 | SSW 13 | SSE 8 | SSE 7 | SSE 6 | SSW 14 |
| kJ | 43 | 11 | 80 | 39 | 38 | 119 | 112 | 7 | 50 | 22 | 25 | 41 | 193 | 32 | 186 | 21 | 18 | 19 | 9 | 14 | 21 |
Swell 2 Height (m) Direction Period (s) | S 12 | SSE 9 | NE 6 | E 8 | E 8 | SSW 17 | SSW 17 | SSW 16 | ESE 8 | SSE 15 | S 12 | WNW 12 | SSE 13 | SSW 15 | NW 12 | SSW 14 | WNW 11 | SSW 13 | SSW 12 | SSW 16 | S 18 |
| kJ | 11 | 8 | 58 | 57 | 54 | 27 | 29 | 25 | 14 | 42 | 12 | 30 | 35 | 22 | 35 | 37 | 12 | 16 | 15 | 25 | 25 |
Swell 3 Height (m) Direction Period (s) | SSE 9 | SW 16 | S 12 | ENE 7 | NE 7 | S 15 | S 15 | SSE 8 | S 13 | SSW 16 | WNW 14 | ESE 11 | NW 11 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSW 16 | SSW 12 | SSE 12 |
| kJ | 8 | 11 | 11 | 4 | 12 | 17 | 17 | 7 | 14 | 26 | 19 | 12 | 32 | 18 | 34 | 17 | 14 | 14 | 25 | 14 | 13 |
Wind waves Height (m) Direction Period (s) | E 8 | ENE 8 | — | — | — | — | — | ENE 7 | ENE 7 | ENE 6 | E 7 | ENE 7 | ENE 6 | ENE 6 | ENE 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 |
| kJ | 89 | 176 | — | — | — | — | — | 117 | 141 | 123 | 200 | 317 | 231 | 422 | 500 | 970 | 1046 | 720 | 476 | 341 | 303 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 19 | 19 | 19 | 4 | 9 | 9 | 9 | 17 | 19 | 49 | 57 | 55 | 216 | 216 | 143 | 133 | 111 | 111 | 48 | 17 | 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.
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