Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 11 Sep 2026:
- Best quality surf: Friday 18 Sep, 1AM (local time) - 6.5ft (2.0m), 9s period, SSE swell with cross-offshore winds.
- Most powerful swell: Thursday 17 Sep, 7PM (local time) - 8ft (2.5m), 9s period, SSE swell with 994 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 10PM (local time) - 4.5ft (1.3m), 6s period with NNE 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 Sunday (Sep 13) at 10PM. The primary swell is predicted to be 1.3m and 6s period with a secondary swell of 0.9m and 6s. 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 2.5m 9s and forecast to arrive on Thursday (Sep 17) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 10s period and expected on Wednesday (Sep 16) at 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 13th Sep) | 4.5ft (1.3m) 6s |
| Best Surf | 1AM (Fri 18th Sep) | 6.5ft (2.0m) 9s |
| Most Powerful | 7PM (Thu 17th Sep) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
G'day, it's Rusty here. Let's have a look at what's on the table for Narrabeen-Alley Rights over the next couple of weeks.
Right off the bat, we've got a long, slow start with barely a ripple for days. The first week is pretty much a write-off for any sort of decent session, with tiny, wind-affected junk. The water temp is about average for this time of year, so that's not going to change the story.
The first real sign of life doesn't show up until Friday the 18th of September. What we’ve got is a pulse of new swell from the SSE hitting 5ft, with a combined swell energy reading of (341) – that's moderate, solid enough to get the blood pumping. The period is 8 seconds, so not a true groundswell but more than we’ve had. The wind is a clean cross-off from the north, so it'll be peeling nicely. For a spot that's been flat and ordinary, this is a standout.
After that, things settle right back down again. Saturday the 19th has tiny 2ft waves from the ESE with a glassy morning – that'll be pretty and clean, but the energy is weak (88). It's surfable for a cruisy paddle but nothing to get excited about. Monday the 21st and Tuesday the 22nd are a total bust with onshore slop and no power.
Then, on Saturday the 26th of September, we get another proper spike. This is the best option on the whole forecast. The swell jumps to 7ft from the SSE with a period of 8 seconds. The combined energy is strong at (593). The wind is a clean cross-off from the NE. That size is pushing into advanced territory – over 8ft is only for experts, so this sits right in that sweet spot for strong paddlers. It's tricky though, because that period is short, so it won't have that long-period grunt and the sets might be a bit crumbly on the bank. It's still the pick of the bunch. Sunday the 27th will still have some of that energy (316) with 5ft waves, but the wind turns cross-shore, making it less clean than Saturday.
So, if you're hanging for a wave, mark in the diary for Friday the 18th and especially Saturday the 26th of September. The rest of the window is a long, quiet gap with little to recommend. It’s a frustrating stretch, but when the swell does show up, Narrabeen-Alley Rights knows how to handle it.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Mon morning, min 13°C on Fri night). Winds increasing (calm on Fri night, fresh winds from the NNE by Sun afternoon). | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Wed night. Very mild (max 19°C on Mon night, min 10°C on Tue night). Winds increasing (calm on Mon night, strong winds from the SSW by Wed morning). | ||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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 13 | ENE 14 | ENE 14 | ENE 13 | NE 5 | NE 5 | NE 7 | NE 6 | NE 5 | NE 6 | NE 7 | NE 7 | NE 7 | ENE 14 | ENE 13 | NE 13 | E 13 | E 13 | SSE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 18 | 19 | 19 | 16 | 18 | 47 | 278 | 82 | 57 | 167 | 91 | 44 | 18 | 20 | 16 | 7 | 7 | 3 | 603 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | glassy | cross | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off |
High Tide | 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 | 12:00PM1.32m | 00:37AM0.91m | |||||||
Low Tide | 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 | 5:19AM0.45m | 6:52PM0.45m | |||||||
 |  | | | | | |  | | | | |  | | |  |  | | | |
 | — | 5:58 | — | — | 5:58 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | 5:52 | — | — |
 | — | — | 5:43 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 1 | — | — |
Temp °C | 15 | 18 | 17 | 16 | 18 | 18 | 17 | 24 | 21 | 19 | 19 | 17 | 13 | 13 | 14 | 13 | 14 | 14 | 13 |
Feels °C | 15 | 15 | 13 | 14 | 14 | 13 | 14 | 21 | 17 | 17 | 16 | 14 | 6 | 3 | 5 | 4 | 8 | 10 | 12 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 12 | S 11 | S 10 | S 11 | S 11 | NE 6 | NE 6 | NE 5 | NE 6 | NE 7 | NE 7 | NE 7 | NE 7 | ENE 13 | NE 13 | E 13 | S 18 | SSE 9 |
| kJ | 332 | 418 | 279 | 158 | 181 | 181 | 161 | 54 | 57 | 98 | 91 | 44 | 15 | 2 | 16 | 7 | 3 | 25 | 603 |
Swell 2 Height (m) Direction Period (s) | S 19 | S 19 | S 17 | S 20 | S 17 | ENE 13 | S 12 | S 11 | S 11 | S 10 | S 10 | SSW 5 | ENE 13 | ENE 14 | — | — | NE 13 | E 13 | E 13 |
| kJ | 61 | 184 | 142 | 121 | 49 | 17 | 175 | 123 | 81 | 48 | 29 | 7 | 18 | 20 | — | — | 7 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | ENE 13 | ENE 14 | ENE 14 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | ENE 12 | NE 13 | S 9 | — | — | — | — | — | — | NE 13 |
| kJ | 18 | 19 | 19 | 16 | 17 | 17 | 17 | 17 | 16 | 15 | 6 | 14 | — | — | — | — | — | — | 7 |
Wind waves Height (m) Direction Period (s) | — | — | E 3 | NE 4 | NE 5 | NE 5 | NE 7 | NE 6 | NE 6 | NE 6 | SW 4 | SE 3 | S 7 | S 9 | S 10 | S 10 | S 10 | S 9 | — |
| kJ | — | — | 5 | 24 | 18 | 47 | 278 | 82 | 86 | 167 | 6 | 2 | 783 | 1768 | 3200 | 3121 | 1958 | 1279 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 1 | 444 | 1 | 4 | 513 | 0 | 0 | 38 | 0 | 2 | 81 | 81 | 833 | 734 | 162 | 2 | 54 | 0 |
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