
Surf Forecasts:
Rabbit/Manana Island surf forecast from 18 Jul 2026:
- Most powerful swell: Saturday 25 Jul, 2AM (local time) - 7.5ft (2.3m), 7s period, ENE swell with 557 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 2.3m 7s and forecast to arrive on Saturday (Jul 25) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 16s period and expected on Monday (Jul 20) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Sat 25th Jul) | 7.5ft (2.3m) 7s |
Table - best surf conditions forecast for Rabbit/Manana Island over the next 16 days.
The Lowdown
Alright, Rusty here. Let's get into it.
Looks like we're in for a long, frustrating stretch, my friends. Don't get your hopes up for the first week and a half – it's a real battle to find anything clean. For the first eleven days, from Saturday the 18th right through to Tuesday the 29th of July, the surf is just a mess. The wind is hammering in from the ENE, mostly cross or cross-onshore, and it's blowing a gale, 16 to 25 mph. The swell is a short, choppy 4ft to 7ft, and the energy is surprisingly weak to moderate for that size, with the combined energy sitting between 191 and 638. That ENE wind is the exact opposite of the offshore direction this spot needs, so every day is a write-off. It's a real brutal stretch of onshore slop.
The only break on the radar is Rabbit/Manana Island. It's an exposed spot, and it's fairly consistent, but that doesn't help when the wind is wrong. The water temp is about 80°F, which is a perfectly normal 0.4°F anomaly for this time of year—nothing to write home about there.
Now, here's where it gets interesting, but also dangerous. The forecast for Wednesday the 30th of July shows a *massive* change. The swell direction shifts to the east, with a very long period of 11 to 14 seconds. The combined energy skyrockets – 6259 on Thursday morning, and a whopping 10028 on Wednesday afternoon. This is serious, groundswell energy. The break is a point, reef, or river-type setup, which is perfect for this kind of long-period swell, so the shape could be unreal. The wind also looks epic on Thursday the 30th, with a light NNE breeze at 6 mph, blowing directly offshore. It's predicted to be glassy and clean. But here's the catch: the swell hits 16ft on Thursday morning. That's a monster. It's explicitly stated that the swell is predicted to be too big for this break. This is expert-only, life-threatening territory. The wave energy is off the charts. For the pro crew only.
After that, the swell drops back down to the 6ft to 8ft range on Friday the 31st and into the weekend, but the wind comes back around to the ENE, and it's all cross-on slop again. The combined energy drops to 662, and the period shortens back to 8 seconds. A couple of morning sessions on the 31st might have a slight cross-chop, but it's a marginal call at best.
So, to be honest, the one standout is the offshore glass on Thursday the 30th of July, but it's a tsunami-sized swell. For the average surfer, there's nothing to recommend in this entire 16-day window. The whole run is mucked up by wind and, for one day, by sheer size. It's a “check the cameras and wait” kind of outlook.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sat morning, min 24°C on Sat night). Mainly strong winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Tue morning, min 24°C on Wed night). Mainly strong winds. | ||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
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 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | NE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 7 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph | |||||||||||||||||||||
327 | 426 | 353 | 310 | 266 | 270 | 226 | 256 | 87 | 149 | 158 | 220 | 171 | 144 | 261 | 240 | 282 | 332 | 336 | 432 | 557 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross |
High Tide | 5:55PM0.57m | 7:07AM0.34m | 6:08PM0.51m | 9:13AM0.37m | 6:04PM0.45m | 11:19AM0.44m | 4:59PM0.41m | 12:21PM0.51m | 12:58PM0.56m | 1:29PM0.59m | |||||||||||
Low Tide | 10:57AM0.11m | 00:51AM0.11m | 11:40AM0.20m | 1:25AM0.09m | 12:37PM0.29m | 2:03AM0.07m | 3:19PM0.35m | 2:49AM0.05m | 3:43AM0.04m | 4:39AM0.02m | |||||||||||
5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | |
— | 7:15 | — | — | 7:14 | — | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 24 | 25 | 25 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 22 | 21 | 21 | 22 | 22 | 23 | 22 | 23 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 22 | 21 | 21 | 22 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 12 | SSW 12 | NNE 8 | S 18 | S 16 | S 16 | NE 7 | S 14 | S 14 | E 13 | E 12 | E 11 | E 12 | E 12 | S 13 | SSW 18 | SSW 18 | SSW 17 | SSW 16 |
36 | 39 | 30 | 15 | 13 | 55 | 47 | 81 | 79 | 103 | 97 | 84 | 102 | 57 | 108 | 137 | 55 | 112 | 104 | 59 | 52 | |
Swell 2 Height (m) Direction Period (s) | S 9 | NNE 8 | SE 9 | S 19 | S 19 | S 11 | S 13 | SW 18 | S 15 | E 12 | E 14 | S 14 | SSE 13 | E 13 | S 13 | S 12 | SSW 20 | S 13 | S 12 | S 12 | SSW 20 |
2 | 14 | 3 | 29 | 27 | 10 | 31 | 12 | 107 | 25 | 37 | 89 | 59 | 55 | 52 | 44 | 75 | 31 | 46 | 25 | 81 | |
Swell 3 Height (m) Direction Period (s) | NE 9 | SE 9 | S 21 | SE 8 | SSW 12 | S 14 | SW 18 | E 13 | E 12 | E 15 | E 11 | S 26 | S 11 | SSE 13 | SSW 22 | SSW 20 | NNW 10 | S 11 | NNW 9 | SSW 21 | S 12 |
3 | 3 | 8 | 3 | 15 | 14 | 13 | 3 | 12 | 17 | 22 | 53 | 20 | 58 | 91 | 77 | 9 | 20 | 8 | 89 | 25 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 7 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
327 | 426 | 353 | 310 | 266 | 270 | 226 | 256 | 87 | 149 | 158 | 220 | 171 | 144 | 261 | 240 | 282 | 332 | 336 | 432 | 557 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 55 | 55 | 50 | 48 | 55 | 19 | 19 | 48 | 19 | 48 | 48 | 48 | 49 | 55 | 48 | 55 | 61 | 48 | 49 | 142 | 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.










