Surf Forecasts:
Rabbit/Manana Island surf forecast from 12 Sep 2026:
- Most powerful swell: Thursday 17 Sep, 11PM (local time) - 6.5ft (2.0m), 10s period, E swell with 799 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 2.0m 10s and forecast to arrive on Thursday (Sep 17) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 18s period and expected on Wednesday (Sep 16) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Thu 17th Sep) | 6.5ft (2.0m) 10s |
Table - best surf conditions forecast for Rabbit/Manana Island over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's be real with you about the next couple of weeks. The short version? We’re in for a stretch of tough, lumpy, cross-onshore slop for the most part. It's gonna take a while before the ocean cleans up its act and gives us something worth paddling out for.
The first week and a half is a write-off for decent waves. From Friday the 11th right through to around the 24th, the wind is just going to be a constant problem, blowing cross or cross-on from the ENE. We're looking at choppy, messy conditions with wave heights mostly under 6.5 ft. Sure, there's some size at times, but with that wind, it's gonna be a washing machine out there. It’s not going to be pretty. We get a little bump in energy around the 17th and 18th with some bigger swell (combined energy in the 500-630 range), but it's still going to be rough and lumpy. Honestly, for a stretch like that, if you have a kite, that might be more fun than a surfboard.
But hang in there, because things start to turn around at the end of the period. The real light at the end of the tunnel comes late on Friday the 25th. That’s when the wind finally eases off. We've got a new, long-period groundswell from the NNW showing up, and the energy jumps way up. The wave heights are still moderate, around 4.3 ft, but the quality is a whole different story.
The standout window is Saturday the 26th. The morning looks prime for Rabbit/Manana Island. The swell direction from the NNW is right in that spot's wheelhouse, and we're seeing that long-period groundswell at around 14 seconds. That's the good stuff. Combined with a light cross-offshore breeze, it's going to be clean. This is your best bet for the entire run. It's a fairly consistent break, but with those longer-period swells, it can get a bit straight at beach breaks. Still, this looks like the day. Energy is strong, over 1000, so there’s plenty of push behind it.
The afternoon also looks promising with a proper offshore wind kicking in and a 13-second swell. It's going to be a great day on the water. Just remember, the water is warm, about 80.8°, which is right on the money for this time of year. Don't sleep on that forecast, it’s a long way out, so treat it as promising but not set in stone. But if it holds, that’s the one.
Stay stoked.
Short Range ForecastMostly dry. Warm (max 25°C on Fri afternoon, min 24°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Tue morning, min 25°C on Mon afternoon). Mainly fresh winds. | |||||||||||||||||||
Fri 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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 | E 10 | ENE 10 | NE 9 | NNE 9 | NNE 9 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NNE 8 | NNE 8 | ENE 6 | E 6 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | E 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 204 | 216 | 160 | 125 | 135 | 138 | 115 | 123 | 100 | 69 | 51 | 51 | 52 | 145 | 154 | 268 | 397 | 438 | 494 | 799 |
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-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 2:52PM0.60m | 3:26AM0.53m | 3:07PM0.55m | 4:11AM0.55m | 3:19PM0.50m | 4:57AM0.55m | 3:24PM0.45m | 5:47AM0.53m | 3:20PM0.41m | 6:53AM0.51m | 2:37PM0.40m | 8:54AM0.49m | ||||||||
Low Tide | 9:04PM0.07m | 9:09AM0.14m | 9:26PM0.05m | 9:50AM0.20m | 9:48PM0.03m | 10:35AM0.25m | 10:11PM0.03m | 11:26AM0.30m | 10:35PM0.05m | 12:57PM0.34m | 11:02PM0.07m | 11:41PM0.10m | ||||||||
 |  | | |  | | | |  | | | | | | | | | | | | |
 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — |
 | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:30 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
Feels °C | 23 | 24 | 24 | 24 | 24 | 25 | 24 | 24 | 25 | 23 | 24 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | NE 8 | NE 9 | NE 9 | NNE 9 | NNE 9 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NNE 8 | NNE 8 | E 11 | NNE 7 | SW 18 | E 11 | E 10 | SSW 19 | SSW 18 |
| kJ | 22 | 57 | 75 | 115 | 135 | 138 | 115 | 123 | 100 | 69 | 51 | 51 | 52 | 59 | 31 | 79 | 82 | 136 | 35 | 124 |
Swell 2 Height (m) Direction Period (s) | NW 8 | SSW 15 | SSW 16 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | SSW 14 | SW 14 | SSW 22 | E 13 | E 12 | E 12 | NNE 7 | SW 18 | S 12 | SW 17 | SSW 16 | SSW 16 | S 10 |
| kJ | 3 | 22 | 24 | 125 | 46 | 26 | 25 | 20 | 8 | 45 | 14 | 47 | 44 | 20 | 80 | 3 | 76 | 25 | 24 | 2 |
Swell 3 Height (m) Direction Period (s) | S 12 | SSW 12 | SSE 8 | SW 16 | SSW 13 | SSW 15 | SW 15 | NW 12 | SE 8 | SW 14 | NNE 10 | SW 20 | SSW 20 | SW 19 | N 10 | SW 11 | S 11 | SSW 19 | S 10 | NW 12 |
| kJ | 11 | 13 | 6 | 10 | 17 | 21 | 8 | 6 | 2 | 8 | 10 | 60 | 37 | 95 | 2 | 5 | 2 | 37 | 2 | 6 |
Wind waves Height (m) Direction Period (s) | ENE 8 | E 10 | ENE 10 | — | E 4 | E 4 | ENE 4 | ENE 4 | ENE 4 | ENE 5 | ENE 5 | ENE 5 | ENE 6 | ENE 6 | E 6 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | E 10 |
| kJ | 204 | 216 | 160 | — | 7 | 15 | 13 | 19 | 25 | 30 | 24 | 26 | 47 | 145 | 154 | 268 | 397 | 438 | 494 | 799 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 19 | 19 | 48 | 19 | 19 | 19 | 19 | 25 | 48 | 19 | 19 | 19 | 48 | 48 | 55 | 57 | 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.
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