
Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 14 Sep 2026:
- Best quality surf: Thursday 17 Sep, 10PM (local time) - 6ft (1.8m), 9s period, SSE swell with glassy winds.
- Most powerful swell: Thursday 17 Sep, 10PM (local time) - 6ft (1.8m), 9s period, SSE swell with 528 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 7PM (local time) - 5ft (1.6m), 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 7PM. The primary swell is predicted to be 1.6m 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 1.8m 9s and forecast to arrive on Thursday (Sep 17) at 10PM. Winds are predicted to be glassy 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+) | 7PM (Mon 14th Sep) | 5ft (1.6m) 6s |
| Best Surf | 10PM (Thu 17th Sep) | 6ft (1.8m) 9s |
| Most Powerful | 10PM (Thu 17th Sep) | 6ft (1.8m) 9s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
G’day, Rusty here again, looking at Narrabeen-Alley Rights.
Honestly, the first week and a half is a write-off. From the 14th right through to the 22nd, we’re looking at flat days and tiny, wind-affected slop. Energy readings are weak – mostly under 100 (71, 85, 103) – and we’ve got a run of cross-shore and onshore winds that will have it choppy and messy. The only glassy morning is the 18th, but there’s no swell to go with it.
Things finally start moving on the 23rd, when we see a jump in energy – 210 on the morning, with 1.7m of short-period ENE swell. But the period’s only 6 seconds, and wind is cross-shore, so it’s still marginal. The 24th and 25th see more size building, with the 25th morning bringing 1.8m from the NE and combined energy of 524. That’s the standout window – the wind goes cross-off from the NNE at 20 km/h, so it’s cleaner than anything else in the whole run.
The 26th morning has similar size at 1.8m from the NE (energy 678), but the wind is cross-shore and there’s a slight chop, so it’s not as good. After that, onshore southerlies and rain move in on the 28th, with 1.9m of windswell but poor quality. The 29th stays onshore with 1.3m to 1.4m of messy, wind-affected surf.
So the pick of the fortnight is the morning of the 25th. Narrabeen-Alley Rights is a beach and sandbar that’s very consistent, but it’s an advanced wave, so you need to know what you’re doing. That 1.8m from the NE is solid, and the light cross-off wind will keep it reasonably clean. Crowds are often, so expect some company. Water temp’s at 17°, which is about normal for this time of year.
If you can’t make the 25th, the 26th morning is the only other half-decent option, but it’s more of a gamble with the cross-shore chop. Everything else – forget it.
It’s a long wait, but there is a light at the end of the tunnel. Stay patient, and if that Friday morning delivers, it’ll be worth it.
Rusty out.
Short Range ForecastSome drizzle, heaviest during Tue night. Warm (max 23°C on Mon morning, min 9°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 27°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 5 | NE 6 | NE 7 | NE 7 | NE 7 | ENE 14 | ENE 12 | NE 13 | E 13 | E 13 | E 13 | E 12 | E 12 | NE 4 | S 9 | NE 3 | NE 3 | S 9 | NE 4 | NE 5 |
Wave Graph | |||||||||||||||||||||
54 | 87 | 196 | 77 | 46 | 18 | 20 | 15 | 7 | 3 | 3 | 3 | 3 | 3 | 5 | 0 | 2 | 2 | 0 | 12 | 28 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | off | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | on | cross-off | glassy | cross | cross-off | cross-off | cross-on | off | off | cross | 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 | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 20 | 22 | 20 | 17 | 13 | 13 | 14 | 14 | 14 | 13 | 13 | 19 | 17 | 16 | 27 | 23 | 21 | 25 | 26 | 25 |
Feels °C | 19 | 16 | 19 | 18 | 14 | 6 | 4 | 5 | 6 | 10 | 10 | 12 | 15 | 13 | 15 | 24 | 18 | 18 | 21 | 23 | 20 |
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 | S 10 | S 9 | S 9 | S 9 | SSE 9 | S 9 | S 9 | S 9 | S 8 | S 9 | S 8 | NE 5 |
54 | 81 | 128 | 77 | 46 | 11 | 2 | 15 | 7 | 1380 | 775 | 452 | 422 | 340 | 198 | 101 | 73 | 52 | 24 | 12 | 28 | |
Swell 2 Height (m) Direction Period (s) | S 11 | ENE 13 | S 10 | S 10 | S 9 | ENE 13 | ENE 14 | — | — | S 19 | S 19 | E 13 | S 18 | S 18 | S 16 | S 14 | S 14 | NE 3 | — | S 20 | S 18 |
123 | 16 | 48 | 29 | 25 | 18 | 20 | — | — | 28 | 28 | 3 | 25 | 96 | 132 | 36 | 35 | 2 | — | 33 | 101 | |
Swell 3 Height (m) Direction Period (s) | ENE 13 | — | ENE 12 | NE 13 | ENE 13 | S 16 | — | — | — | E 13 | E 13 | S 19 | E 12 | E 12 | NE 4 | S 17 | S 17 | S 17 | S 18 | S 11 | S 11 |
17 | — | 15 | 6 | 17 | 5 | — | — | — | 3 | 3 | 7 | 3 | 3 | 5 | 51 | 50 | 22 | 6 | 2 | 21 | |
Wind waves Height (m) Direction Period (s) | NE 6 | NE 5 | NE 6 | SW 3 | S 4 | S 9 | S 10 | S 10 | S 11 | S 10 | — | — | — | NE 3 | N 4 | W 3 | NE 3 | NNE 3 | — | NE 4 | NW 3 |
80 | 87 | 196 | 2 | 13 | 1187 | 2223 | 2631 | 2930 | 1847 | — | — | — | 2 | 7 | 3 | 2 | 1 | — | 12 | 2 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 176 | 0 | 2 | 1325 | 115 | 833 | 734 | 81 | 2 | 89 | 1 | 1 | 18 | 1 | 1 | 38 | 1 | 62 | 48 | 1 |
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.










