
Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 5 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 10PM (local time) - 6ft (1.8m), 9s period, SSE swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 10PM (local time) - 10ft (3.0m), 9s period, SSE swell with 1,640 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 10PM (local time) - 6ft (1.8m), 9s period with SSE swell.
Best Forecast Surf Conditions for Narrabeen-Alley Rights this week:
The surf forecast for Narrabeen-Alley Rights over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 08) at 10PM. The primary swell is predicted to be 1.8m and 9s period with a secondary swell of 0.2m and 10s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Narrabeen-Alley Rights in the next 16 days are 3.0m 9s and forecast to arrive on Wednesday (Sep 09) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 10s period and expected on Thursday (Sep 10) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Tue 8th Sep) | 6ft (1.8m) 9s |
| Best Surf | 10PM (Tue 8th Sep) | 6ft (1.8m) 9s |
| Most Powerful | 10PM (Wed 9th Sep) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s cooking for the next couple of weeks.
Alright, I’m not gonna lie to you – it’s a tough stretch ahead for Narrabeen-Alley Rights. We’re looking at a long, dry spell with barely a ripple. The first real sign of life doesn’t show up until Saturday the 12th, so we’ve got over a week of flat or close-to-flat conditions to get through first. For a break that’s usually consistent, that’s a bit of a heartbreaker.
The water temp is sitting around 64°F, which is pretty much dead average for this time of year, so no surprises there.
We go from now all the way to the morning of Saturday, September 12th, before we see anything worth getting wet for. Even then, it’s a very small SSE groundswell with a long 18-second period. That long period gives it some real energy (131 on the energy scale), but at only 1ft, it’s barely going to stand up. Still, the morning is glassy, and with a south swell direction being pretty much straight onshore here, the lack of wind is a huge positive. This is your best chance in the first ten days, but keep your expectations low. You might sneak a few tiny, clean ones.
After that, it drops right back off again until Tuesday the 15th of September. The morning shows a little pulse of 3ft from the NE (energy only 95), but with a short 7-second period, it’ll be weak and bumpy. The offshore NW wind will make it look clean, but there’s just no push.
Now, here’s the real standout, but you’ve gotta wait for it. On Thursday the 17th of September, the models are lighting up. We’ve got a very strong SSE groundswell arriving. The morning shows a massive 13ft at a long 13-second period, and the energy is off the charts at 5369. However, the morning wind is a cross-onshore, and the surf is going to be way too big for this beach break – that’s expert-only territory, and honestly, it’ll be dangerous and messy.
The real winner? Thursday the 17th of September, in the *afternoon*. The swell drops to a still-pumping 12ft from the SSE (energy 4356), and the wind swings light SSE, becoming a light cross-onshore. It’s still massive, but the tide and wind are reported to be favorable. This is the one day for the experienced crew to get a piece of it. It’s going to be big, powerful, and heavy, so don’t even think about taking a foamy out there. It’s only for experts.
That big swell hangs around into Friday the 18th of September. The morning has a 10ft swell from the SSE (energy 3772) with a strong WSW cross-offshore wind, meaning clean faces. Again, this is solidly in the "experts only" zone. The wind gets messy that afternoon and it all blows out.
After that, it fades fast into the weekend. A smaller 6ft to 7ft on Saturday the 19th is still sizeable, but the cross-onshore wind makes it ragged and choppy instead of nice.
So, to wrap it up: the first week and a half is basically dead. Don’t even bother. Hold out for the massive pulse on Thursday the 17th of September afternoon for the big-wave chargers. It’s a long way off, so keep an eye on it. For everyone else, the glassy, tiny wave on Saturday the 12th is the only real, clean option you’ve got.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Mon night. Warm (max 29°C on Sat morning, min 13°C on Sun night). Winds decreasing (fresh winds from the SW on Sun morning, calm by Mon morning). | Days 4-6 Weather SummaryMostly dry. Very mild (max 16°C on Wed morning, min 11°C on Tue night). Winds increasing (light winds from the N on Tue night, fresh winds from the S by Wed morning). | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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 9 | NE 5 | NE 6 | NE 6 | NE 6 | ENE 10 | E 10 | E 10 | SE 12 | SE 10 | SE 9 | SSE 9 | SSE 9 | SSE 7 | E 12 | ESE 10 | ESE 9 | ENE 15 | E 15 | ENE 14 | ENE 13 |
Wave Graph | |||||||||||||||||||||
17 | 29 | 26 | 21 | 10 | 10 | 8 | 8 | 67 | 250 | 183 | 517 | 287 | 461 | 11 | 10 | 9 | 21 | 17 | 18 | 18 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | on | cross | glassy | cross-on | cross-on | cross-on | on | off | cross-on | cross-on | cross-on | cross-on | on | cross-off | cross-off | cross-on | cross-on |
High Tide | 2:40PM1.43m | 3:45AM0.95m | 3:54PM1.48m | 4:59AM1.01m | 5:00PM1.55m | 5:57AM1.10m | 5:56PM1.61m | 6:45AM1.20m | 6:46PM1.65m | 7:28AM1.30m | 7:32PM1.63m | 8:07AM1.38m | 8:14PM1.58m | ||||||||
Low Tide | 9:47PM0.31m | 9:08AM0.46m | 10:57PM0.23m | 10:24AM0.42m | 11:54PM0.14m | 11:28AM0.35m | 00:41AM0.07m | 12:24PM0.27m | 1:23AM0.03m | 1:14PM0.21m | 2:00AM0.03m | 2:02PM0.17m | 2:35AM0.06m | ||||||||
6:07 | — | — | 6:07 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — | 6:00 | — | — | |
— | 5:38 | — | — | 5:38 | — | — | 5:39 | — | — | 5:40 | — | — | 5:40 | — | — | 5:42 | — | — | 5:43 | — | |
mm | — | — | — | — | — | — | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 29 | 22 | 19 | 18 | 16 | 17 | 16 | 15 | 15 | 15 | 14 | 16 | 14 | 15 | 14 | 13 | 14 | 17 | 16 | 15 |
Feels °C | 24 | 23 | 19 | 15 | 13 | 13 | 14 | 12 | 11 | 10 | 12 | 12 | 12 | 6 | 8 | 9 | 9 | 12 | 14 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | S 9 | NE 5 | NE 6 | NE 6 | S 8 | S 10 | S 9 | S 9 | SE 12 | SE 10 | S 9 | SSE 9 | SSE 9 | ENE 9 | E 12 | S 18 | S 10 | S 11 | S 10 | S 10 | S 11 |
85 | 29 | 26 | 21 | 111 | 1460 | 421 | 364 | 67 | 250 | 435 | 517 | 287 | 8 | 11 | 60 | 1247 | 1344 | 955 | 850 | 743 | |
Swell 2 Height (m) Direction Period (s) | ENE 9 | S 9 | S 10 | E 11 | NE 6 | ENE 10 | NE 8 | E 10 | E 10 | E 10 | SE 9 | ENE 10 | SE 10 | S 16 | NE 16 | ESE 10 | S 24 | ESE 9 | S 22 | ENE 14 | ENE 13 |
17 | 62 | 44 | 9 | 10 | 10 | 2 | 8 | 9 | 7 | 183 | 9 | 17 | 5 | 10 | 10 | 99 | 7 | 36 | 18 | 18 | |
Swell 3 Height (m) Direction Period (s) | NE 7 | ENE 9 | E 11 | — | E 10 | — | E 10 | NE 8 | NE 8 | — | ENE 10 | N 9 | ENE 9 | E 17 | — | E 16 | ESE 9 | ENE 15 | E 15 | E 10 | E 9 |
2 | 8 | 9 | — | 8 | — | 8 | 2 | 3 | — | 9 | 2 | 8 | 6 | — | 5 | 9 | 21 | 17 | 2 | 2 | |
Wind waves Height (m) Direction Period (s) | NE 4 | WNW 3 | WSW 3 | SSW 7 | SSW 8 | S 10 | — | — | S 8 | S 9 | — | — | NW 3 | SSE 7 | S 10 | S 10 | — | — | — | — | — |
5 | 3 | 3 | 105 | 196 | 1838 | — | — | 488 | 828 | — | — | 2 | 461 | 2206 | 1470 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 1 | 4 | 6 | 26 | 1 | 1 | 266 | 162 | 2 | 2 | 0 | 2 | 162 | 2 | 2 | 115 | 1 | 1 | 18 | 2 |
Best forecast wave conditions in Sydney North Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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Information about the Narrabeen-Alley Rights Surf forecast
The above surf forecast table for Narrabeen-Alley Rights provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Narrabeen-Alley Rights can be found by selecting the local surf guide option on the grey menu. Our Narrabeen-Alley Rights 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 (Narrabeen-Alley Rights) 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 Narrabeen-Alley Rights 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.
Narrabeen-Alley Rights is 5 km (3 miles) from Dee Why. If you plan a holiday in Sydney North Coast, look for hotels and other accommodation in Dee Why. Dee Why has rooms for a wide range of budgets as well as car hire and transport links.










