
Surf Forecasts:
Rabbit/Manana Island surf forecast from 8 Aug 2026:
- Most powerful swell: Saturday 15 Aug, 8AM (local time) - 18ft (5.5m), 14s period, E swell with 11,992 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 5.5m 14s and forecast to arrive on Saturday (Aug 15) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 13s period and expected on Saturday (Aug 15) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Sat 15th Aug) | 18ft (5.5m) 14s |
Table - best surf conditions forecast for Rabbit/Manana Island over the next 16 days.
The Lowdown
G’day, it’s Rusty here. Let’s be straight with you: the next couple of weeks are looking pretty grim for a proper paddle at Rabbit/Manana Island. The wind is stuck in that cross-onshore groove for days on end, and the swell is mostly short-period, wind-driven junk. We’re looking at a long, frustrating stretch where the lineup is going to be lumpy and messy, not the kind of place you want to be fighting chop for a so-so wave.
Starting off this Saturday morning, the 8th, we have a clear sky but a fresh 35 km/h cross-onshore breeze, with a 4ft ENE swell at a weak 6 seconds. The energy is weak, reading 173, and the water is warm – 80°F, which is about average for this time of year. It’s just poor. That pattern sticks with us through the weekend and into the start of next week. The swell bumps up slightly to 5ft on Sunday and Monday, but the wind stays fresh and cross-onshore, and the period is stuck at 7-8 seconds. It’s all surface chop, no push, no shape. The energy does climb into the low 300s by Monday, so there’s a bit more juice, but it’s not doing us any favors.
Tuesday sees the wind back it off a touch to a cross-shore 30 km/h, but it’s still lumpy with a cross-chop. The swell drops a bit to 5ft, period 7 seconds, energy around 219. Still no good. Wednesday and Thursday are more of the same, with the wind picking up to a strong 40-45 km/h on Thursday, 13th, and the swell pushing 6ft. That’s when things start to get properly blown out. The energy is now moderate at 271-300, but it’s all getting messed up by the breeze.
Then comes the big one. Friday the 14th sees the wind crank up to a near gale at 50 km/h, and the swell jumps to 8ft in the morning, up to 8ft by the afternoon. The energy is strong at 773 and then 976. It’s all cross-onshore and completely blown out. Not a paddle session, that’s for sure. This looks way more interesting for kite surfing than surfing.
Now, here’s the one standout in the whole window, and it’s a wild one. Saturday the 15th, the swell spikes to a massive 30ft from the E with a very long 14-second period from a groundswell. The energy is off the charts at 27,490. But here’s the catch – it’s way, way too big for this break. The guidance is clear: wind and tide are favorable, but the swell is predicted to be too big. This is expert-only territory, and honestly, at 30ft, likely no one is going out. It’s a spectacle, not a surf. The wind does ease to 25 km/h, but that doesn’t matter when the swell is that giant. This is the one you might watch from the cliffs, not from your board.
After that monster, Sunday the 16th drops right back off to a tiny 2ft NE swell with a 12-second period, but the wind is back up to 25-35 km/h cross-onshore. Energy is weak at 114. The rest of the second week is a monotonous run of poor surf. Monday through Thursday all feature 4ft to 6ft of short-period ENE swell, with fresh cross-onshore winds in the 30-35 km/h range. Occasionally, on Wednesday the 19th, we get a hint of relief – a lighter 15 km/h cross-offshore breeze with a clean surface, but the swell is only 4ft at 6 seconds, which gives us surfable but very ordinary waves. It’s the closest thing to a surf, but it’s not worth getting excited about.
We finish the period on the 22nd and 23rd with the same story: moderate to fresh cross-onshore winds, 5ft to 6ft of short-period ENE swell, and choppy, lumpy conditions. The energy stays in the 250-315 range. It’s a blank run, plain and simple. The only real highlight is that massive swell on the 15th, but that’s a “do not surf” situation if I’ve ever seen one.
So, there it is. A long, desperate stretch with only one extreme, unrideable standout. Hang tight, keep the board in the car, and wait for the wind to swing around. The forecasts can change, but right now, it’s a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sat morning, min 25°C on Sat morning). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Tue morning, min 25°C on Tue afternoon). Mainly strong winds. | ||||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||||
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 6 | ENE 6 | ENE 7 | ENE 7 | ENE 8 | ENE 7 | ENE 7 | ENE 8 | E 7 | ENE 7 | ENE 7 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 15 |
Wave Graph | |||||||||||||||||||||
134 | 182 | 232 | 245 | 283 | 327 | 284 | 273 | 290 | 208 | 208 | 170 | 194 | 188 | 299 | 268 | 295 | 456 | 671 | 976 | 7275 | |
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 | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | 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 | 4:12PM0.63m | 4:22AM0.43m | ||||||||
Low Tide | 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 | 9:20AM0.03m | 10:33PM0.12m | |||||||||
6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | |
— | 7:05 | — | — | 7:05 | — | — | 7:04 | — | — | 7:02 | — | — | 7:02 | — | — | 7:01 | — | — | 7:00 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 25 | 25 | 25 | 26 | 26 |
Feels °C | 24 | 22 | 23 | 25 | 24 | 23 | 25 | 24 | 24 | 25 | 23 | 23 | 23 | 22 | 23 | 23 | 21 | 21 | 20 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | 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 | ESE 11 | S 14 | S 14 |
36 | 19 | 14 | 13 | 23 | 33 | 27 | 24 | 13 | 42 | 40 | 62 | 155 | 152 | 257 | 183 | 161 | 161 | 100 | 102 | 61 | |
Swell 2 Height (m) Direction Period (s) | 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 | NNW 7 | E 12 | NE 11 | NNW 8 | S 14 | S 18 | NNW 9 |
3 | 3 | 17 | 17 | 24 | 20 | 49 | 45 | 44 | 11 | 5 | 119 | 55 | 55 | 5 | 3 | 5 | 6 | 107 | 6 | 7 | |
Swell 3 Height (m) Direction Period (s) | SSW 14 | SSE 10 | SSW 18 | N 12 | SSW 12 | SSE 10 | NE 8 | SSW 12 | SSE 9 | S 11 | SSE 9 | NNW 7 | NNW 7 | NNW 7 | W 12 | — | — | E 13 | NW 7 | — | W 11 |
20 | 9 | 30 | 11 | 15 | 9 | 11 | 14 | 8 | 10 | 8 | 5 | 5 | 5 | 11 | — | — | 3 | 2 | — | 9 | |
Wind waves Height (m) Direction Period (s) | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 8 | ENE 7 | ENE 7 | ENE 8 | E 7 | ENE 7 | ENE 7 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 15 |
134 | 182 | 232 | 245 | 283 | 327 | 284 | 273 | 290 | 208 | 208 | 170 | 194 | 188 | 299 | 268 | 295 | 456 | 671 | 976 | 7275 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 48 | 57 | 48 | 48 | 111 | 48 | 48 | 48 | 22 | 48 | 55 | 20 | 48 | 111 | 48 | 112 | 62 | 112 | 216 | 216 | 143 |
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.











