Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 10 Sep 2026:
- Best quality surf: Monday 14 Sep, 1AM (local time) - 3.5ft (1.1m), 6s period, NE swell with offshore winds.
- Most powerful swell: Tuesday 15 Sep, 10PM (local time) - 6ft (1.8m), 6s period, SSE swell with 282 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 1AM (local time) - 3.5ft (1.1m), 6s period with NE 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 Monday (Sep 14) at 1AM. The primary swell is predicted to be 1.1m and 6s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Narrabeen-Alley Rights in the next 16 days are 1.8m 6s and forecast to arrive on Tuesday (Sep 15) at 10PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 10s period and expected on Friday (Sep 11) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Mon 14th Sep) | 3.5ft (1.1m) 6s |
| Best Surf | 1AM (Mon 14th Sep) | 3.5ft (1.1m) 6s |
| Most Powerful | 10PM (Tue 15th Sep) | 6ft (1.8m) 6s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break it down in feet and knots for you.
First ten days or so are a total bust. From Thursday the 10th through to Saturday the 19th of September, it’s mostly flat to tiny. We’re talking about 1ft or less, and the wind is all over the place. Combined energy is in the teens or twenties – weak, weak, weak. A few glassy mornings pop up, like Saturday the 12th and Thursday the 17th, but with the swell at barely 1ft, it’s just a lake. Not worth the drive.
Then the smoke clears. The real action kicks off on Sunday the 20th of September. The morning brings a solid 8ft SSE swell with a period of 11 seconds, and a combined energy of 1267 – that’s a proper pulse. Wind is clean cross-offshore from the NNE at 9 mph. This is for experienced surfers only. On a beach/sandbar, that long period will make the waves jack up fast and hollow. Crowds are often here, so be ready to share.
The next morning, Monday the 21st, is another winner. The swell drops to about 5ft from the SE at 10 seconds, but the wind goes glassy – dead calm. Combined energy is still a solid 868. That’s your best bet for a clean, powerful session without the Sunday size. Still not for beginners though. Water temp is about normal for the season.
After that, it’s back to the usual junk. The 22nd through the 25th sees smaller, jumbled swell and fresh onshore winds from the south. Nothing to write home about.
So here’s the call: suffer through the long flat spell, and lock in Sunday the 20th and Monday the 21st of September. Those are your only two standouts.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Sun morning, min 13°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Tue afternoon. Warm (max 26°C on Mon morning, min 14°C on Tue night). Mainly fresh winds. | |||||||||||||||||||
Thu 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||
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) | ESE 9 | E 15 | ENE 15 | ENE 14 | ENE 13 | ENE 14 | ENE 14 | ENE 13 | ENE 4 | NE 4 | NE 6 | NE 6 | NE 4 | NE 6 | NE 6 | S 5 | ENE 13 | ENE 14 | ENE 12 | ENE 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 17 | 4 | 21 | 18 | 18 | 19 | 19 | 16 | 7 | 29 | 84 | 26 | 27 | 52 | 28 | 49 | 18 | 20 | 15 | 17 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | on | cross-off | glassy | cross | cross-off | cross-off | cross | off | off | cross | off | on | on | cross-on | on | cross-on | off |
High Tide | 7:32PM1.63m | 8:07AM1.38m | 8:14PM1.58m | 8:45AM1.44m | 8:55PM1.48m | 9:21AM1.47m | 9:35PM1.36m | 9:57AM1.47m | 10:15PM1.23m | 10:35AM1.44m | 10:56PM1.11m | 11:14AM1.39m | 11:41PM1.00m | |||||||
Low Tide | 2:00AM0.03m | 2:02PM0.17m | 2:35AM0.06m | 2:47PM0.16m | 3:08AM0.11m | 3:32PM0.18m | 3:40AM0.19m | 4:16PM0.23m | 4:11AM0.28m | 5:03PM0.30m | 4:43AM0.37m | 5:53PM0.38m | ||||||||
 |  |  | |  | | | | | | | | | | |  |  | | | | |
 | — | — | 6:00 | — | — | 5:58 | — | — | 5:58 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — |
 | 5:42 | — | — | 5:43 | — | — | 5:43 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | — |
Temp °C | 15 | 15 | 16 | 15 | 16 | 17 | 16 | 16 | 19 | 18 | 17 | 26 | 24 | 23 | 16 | 16 | 15 | 15 | 15 | 15 |
Feels °C | 10 | 13 | 14 | 13 | 16 | 16 | 13 | 15 | 15 | 14 | 16 | 22 | 20 | 20 | 14 | 13 | 11 | 11 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | S 22 | S 10 | S 10 | S 10 | S 10 | S 12 | S 11 | S 10 | S 11 | S 11 | NE 6 | S 11 | S 11 | NE 6 | NE 6 | NE 6 | NE 5 | S 9 | S 9 | S 11 |
| kJ | 233 | 967 | 618 | 480 | 384 | 404 | 291 | 194 | 181 | 184 | 84 | 121 | 81 | 52 | 28 | 11 | 1 | 845 | 425 | 451 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | E 15 | ENE 15 | ENE 14 | S 19 | S 19 | S 17 | S 20 | ENE 4 | ENE 13 | S 10 | NE 6 | ENE 13 | S 10 | S 10 | S 9 | ENE 13 | S 17 | S 15 | ENE 13 |
| kJ | 17 | 4 | 21 | 18 | 61 | 184 | 148 | 121 | 7 | 17 | 136 | 26 | 16 | 48 | 29 | 14 | 18 | 22 | 67 | 17 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 10 | ENE 15 | E 10 | ENE 13 | ENE 14 | ENE 14 | ENE 13 | S 17 | ENE 13 | ENE 13 | ENE 13 | — | ENE 12 | ENE 13 | ENE 13 | S 17 | ENE 14 | ENE 12 | NE 7 |
| kJ | 2 | 2 | 21 | 2 | 18 | 19 | 19 | 16 | 49 | 17 | 17 | 17 | — | 15 | 16 | 17 | 23 | 20 | 15 | 2 |
Wind waves Height (m) Direction Period (s) | S 10 | — | — | — | — | — | — | NE 4 | NE 4 | NE 4 | — | WNW 2 | NE 4 | — | SSW 3 | S 5 | S 8 | — | — | — |
| kJ | 1004 | — | — | — | — | — | — | 6 | 8 | 29 | — | 1 | 27 | — | 3 | 49 | 509 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 54 | 1 | 2 | 2 | 1 | 1 | 173 | 1 | 4 | 189 | 0 | 1 | 19 | 0 | 187 | 195 | 162 | 81 | 18 | 1 |
Best forecast wave conditions in Sydney North Coast | ||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Narrabeen-Alley Rights surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest