Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 14 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 1AM (local time) - 5ft (1.6m), 6s period, NE swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 1AM (local time) - 5.5ft (1.7m), 9s period, SSE swell with 484 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 10PM (local time) - 4.5ft (1.3m), 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 10PM. The primary swell is predicted to be 1.3m and 6s period with a secondary swell of 0.2m and 12s. 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 1.7m 9s and forecast to arrive on Friday (Sep 18) at 1AM. Winds are predicted to be cross-offshore 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 7PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Mon 14th Sep) | 4.5ft (1.3m) 6s |
| Best Surf | 1AM (Tue 15th Sep) | 5ft (1.6m) 6s |
| Most Powerful | 1AM (Fri 18th Sep) | 5.5ft (1.7m) 9s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
Alright, Rusty here. Let's break down what's coming for this stretch of coast.
Honestly, the next week and a half is pretty grim. From Monday the 14th all the way through Tuesday the 22nd, it’s mostly flat. Tiny swells, hardly any energy, and the wind is usually blowing the wrong way. A few mornings might look glassy, but there's just no swell to ride. It's a long, quiet period with nothing doing.
The first real chance shows up on Wednesday the 23rd of September, in the afternoon. A new SSE swell rolls in around 4ft, with a 12-second period. The combined energy hits a solid moderate 506, so there’s some real push behind it. Winds are light and cross-off from the NNE, keeping the surface clean. For a beach/sandbar setup, that longer-period groundswell should offer some decent shape, though it might close out a bit on the banks. Still, this is the clear standout of the whole run.
Thursday the 24th gets blown out by strong S winds, and Friday the 25th morning cleans up again with glassy conditions, but the swell drops off fast. The last real highlight comes on Sunday the 27th of September, in the afternoon. A 6ft SSE swell rolls in, period of 6 seconds, with a moderate energy of 288. Winds go offshore from the NW, giving you clean lines. That size is getting up there for beginners, but for anyone with a bit of experience, it’s a solid session.
The water is sitting at 63°F, just a touch below average for the season. Nothing extreme, just that early spring chill.
If you’re waiting for a wave, circle Wednesday the 23rd afternoon. That’s the one to go for.
- Rusty
Short Range ForecastMostly dry. Warm (max 22°C on Mon morning, min 10°C on Wed night). Winds increasing (light winds from the NW on Mon night, strong winds from the S by Tue afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Sat morning, min 10°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
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) | NE 6 | NE 6 | NE 6 | NE 7 | NE 7 | NE 7 | ENE 14 | ENE 12 | NE 13 | NE 13 | E 13 | SSE 9 | E 12 | E 12 | NE 4 | S 9 | NE 3 | NE 5 | NE 5 | NE 5 | SSW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 54 | 59 | 184 | 77 | 46 | 18 | 20 | 15 | 7 | 7 | 3 | 484 | 3 | 3 | 5 | 0 | 5 | 11 | 6 | 10 | 29 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross | on | cross-on | cross-on | cross-on | cross-on | cross | on | cross-off | glassy | cross | cross-off | cross-off | cross-on | off | off | off | off |
High Tide | 10:15PM1.23m | 10:35AM1.44m | 10:56PM1.11m | 11:14AM1.39m | 11:41PM1.00m | 12:00PM1.32m | 00:37AM0.91m | 12:56PM1.26m | 1:51AM0.85m | 2:05PM1.23m | 3:18AM0.86m | 3:17PM1.24m | |||||||||
Low Tide | 4:16PM0.23m | 4:11AM0.28m | 5:03PM0.30m | 4:43AM0.37m | 5:53PM0.38m | 5:19AM0.45m | 6:52PM0.45m | 6:04AM0.53m | 8:05PM0.49m | 7:05AM0.59m | 9:22PM0.48m | 8:25AM0.61m | 10:27PM0.44m | ||||||||
 | |  |  | |  | | | | | | | | | | | | | | | | |
 | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | 5:52 | — | — | 5:50 | — | — | 5:48 | — | — | 5:48 | — | — |
 | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 21 | 21 | 20 | 17 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 18 | 17 | 17 | 26 | 23 | 20 | 27 | 30 | 24 |
Feels °C | 19 | 17 | 18 | 18 | 14 | 6 | 4 | 6 | 6 | 10 | 11 | 12 | 14 | 13 | 16 | 22 | 19 | 18 | 24 | 26 | 19 |
Swell 1 Height (m) Direction Period (s) | NE 6 | S 11 | NE 6 | NE 7 | NE 7 | NE 7 | NE 7 | ENE 12 | NE 13 | NE 13 | S 10 | SSE 9 | SSE 9 | S 9 | S 9 | S 9 | S 9 | S 8 | NE 5 | NE 5 | NE 5 |
| kJ | 54 | 81 | 109 | 77 | 46 | 11 | 2 | 15 | 7 | 7 | 993 | 484 | 311 | 311 | 202 | 101 | 76 | 49 | 6 | 10 | 10 |
Swell 2 Height (m) Direction Period (s) | S 11 | ENE 13 | S 10 | S 10 | S 9 | ENE 13 | ENE 14 | E 15 | — | S 20 | S 19 | NE 13 | S 18 | S 18 | S 16 | S 13 | S 16 | NE 5 | S 9 | S 8 | E 11 |
| kJ | 123 | 16 | 48 | 29 | 14 | 18 | 20 | 4 | — | 8 | 7 | 7 | 6 | 55 | 192 | 51 | 80 | 11 | 24 | 12 | 3 |
Swell 3 Height (m) Direction Period (s) | ENE 13 | — | ENE 12 | NE 13 | ENE 13 | S 16 | — | — | — | — | E 13 | S 19 | E 12 | E 12 | NE 4 | S 17 | NE 12 | S 15 | S 12 | S 12 | — |
| kJ | 17 | — | 15 | 6 | 17 | 5 | — | — | — | — | 3 | 7 | 3 | 3 | 5 | 89 | 5 | 38 | 12 | 11 | — |
Wind waves Height (m) Direction Period (s) | NE 6 | NE 6 | NE 6 | — | S 4 | S 8 | S 10 | S 10 | S 11 | S 10 | — | — | — | — | — | WNW 3 | NE 3 | NW 2 | NW 3 | — | SSW 4 |
| kJ | 80 | 59 | 184 | — | 8 | 1133 | 2095 | 2177 | 3447 | 1808 | — | — | — | — | — | 1 | 5 | 1 | 2 | — | 29 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 38 | 0 | 2 | 806 | 115 | 833 | 734 | 2 | 2 | 2 | 0 | 1 | 18 | 1 | 1 | 82 | 1 | 1 | 310 | 51 |
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.
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