Surf Forecasts:
Rabbit/Manana Island surf forecast from 8 Aug 2026:
- Most powerful swell: Friday 14 Aug, 8PM (local time) - 8ft (2.4m), 8s period, ENE swell with 657 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 2.4m 8s and forecast to arrive on Friday (Aug 14) 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 (Fri 14th Aug) | 8ft (2.4m) 8s |
Table - best surf conditions forecast for Rabbit/Manana Island over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gotta be straight with you – this 16-day window for Rabbit/Manana Island is a tough one. The setup is exposed to the NNE, but we’re looking at a solid 16 days of nothing but poor surf conditions. The wind is locked in from the ENE, blowing cross-on or straight cross, and it’s fresh to strong the whole time – that’s a 19 to 31 mph breeze battering the lineup. Even when the swell ticks up, the wind’s just ruining it.
Right from the start, Friday August 7th, we’ve got a weak 4 ft ENE swell with a period of only 5 seconds and combined energy of just 80 – that’s barely a ripple. The water’s a warm 80°F, which is about normal for this time of year, but you wouldn’t know it with the messy cross-onshore wind. Saturday the 8th is a bit more size at 4 ft, but still a short period and fresh cross-onshore wind. It’s just lumpy, choppy, and not worth paddling out for.
The swell builds as we go into the second week. By Sunday August 16th, we’re looking at a solid 10 ft swell from the ENE with a period of 9 seconds and combined energy hitting 1450 – that’s a lot of power in the water. But the wind is still cross or cross-on at 28 mph, making it a messy, cross-chop mess. For a break like this, with that much energy and that wind? That’s more of a kite-surfing setup than a paddle session. And by Monday August 17th, the swell pushes 12 ft with energy over 1800 – that’s expert-only territory, and even then, it’s going to be ugly.
There are no standouts here. The entire 16-day forecast is a blank run. The only real note is that the water sits around average temp for the season, but that’s not much comfort when the wind is howling. For this area, a run like this feels normal – it’s not going to stay poor forever, and forecasts can always change, but right now, leave the board in the car.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Fri afternoon, min 25°C on Fri afternoon). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Mon afternoon, min 25°C on Mon night). Mainly strong winds. | |||||||||||||||||||
Fri 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | ||||||||||||||
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 5 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 8 | ENE 7 | ENE 7 | ENE 8 | E 7 | E 7 | ENE 7 | E 6 | ENE 7 | ENE 6 | E 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 48 | 131 | 134 | 165 | 212 | 238 | 276 | 435 | 259 | 273 | 277 | 238 | 208 | 220 | 175 | 188 | 262 | 290 | 285 | 383 |
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 | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 1:01PM0.68m | 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 | |||||||||
Low Tide | 4:25AM-0.03m | 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 | |||||||||
 |  | | |  | | | |  | | | | | | | | | | | | |
 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — |
 | 7:06 | — | — | 7:05 | — | — | 7:05 | — | — | 7:04 | — | — | 7:02 | — | — | 7:02 | — | — | 7:01 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 25 |
Feels °C | 25 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 25 | 24 | 26 | 25 | 22 | 22 | 22 | 22 | 24 | 23 | 23 | 21 |
Swell 1 Height (m) Direction Period (s) | NNW 7 | NE 11 | NE 10 | 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 |
| kJ | 9 | 41 | 37 | 19 | 23 | 13 | 23 | 33 | 27 | 24 | 13 | 42 | 40 | 62 | 155 | 152 | 257 | 183 | 161 | 159 |
Swell 2 Height (m) Direction Period (s) | NE 12 | N 7 | N 6 | 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 | NW 7 | N 7 | NW 7 | N 7 |
| kJ | 23 | 4 | 3 | 3 | 17 | 17 | 24 | 43 | 49 | 45 | 44 | 11 | 5 | 119 | 55 | 55 | 2 | 1 | 2 | 1 |
Swell 3 Height (m) Direction Period (s) | S 11 | S 11 | SSW 14 | S 10 | S 10 | N 12 | SSW 12 | SSE 10 | NE 8 | SSE 10 | SSE 9 | S 11 | SSE 9 | NNW 7 | NNW 7 | N 7 | S 20 | NW 9 | — | NW 8 |
| kJ | 9 | 9 | 20 | 8 | 8 | 11 | 15 | 9 | 11 | 9 | 8 | 10 | 8 | 5 | 5 | 1 | 8 | 3 | — | 3 |
Wind waves Height (m) Direction Period (s) | ENE 5 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 8 | ENE 7 | ENE 7 | ENE 8 | E 7 | E 7 | ENE 7 | E 6 | ENE 7 | ENE 6 | E 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 48 | 131 | 134 | 165 | 212 | 238 | 276 | 435 | 259 | 273 | 277 | 238 | 208 | 220 | 175 | 188 | 262 | 290 | 285 | 383 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 48 | 19 | 48 | 55 | 48 | 48 | 48 | 48 | 48 | 49 | 48 | 48 | 114 | 48 | 48 | 57 | 49 | 59 | 61 | 55 |
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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