Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 7 Aug 2026:
- Best quality surf: Monday 10 Aug, 1AM (local time) - 10ft (3.0m), 8s period, NE swell with cross-offshore winds.
- Most powerful swell: Monday 10 Aug, 1AM (local time) - 10ft (3.0m), 8s period, NE swell with 1,001 kJ wave energy.
- Next surfable swell (1★+): Saturday 8 Aug, 1AM (local time) - 1.5ft (0.5m), 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 Saturday (Aug 08) at 1AM. The primary swell is predicted to be 0.5m and 9s period. 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 8s and forecast to arrive on Monday (Aug 10) 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 2.5m 10s period and expected on Thursday (Aug 13) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 8th Aug) | 1.5ft (0.5m) 9s |
| Best Surf | 1AM (Mon 10th Aug) | 10ft (3.0m) 8s |
| Most Powerful | 1AM (Mon 10th Aug) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s see what we’ve got lined up for Narrabeen-Alley Rights. This is a beach/sandbar setup that’s very consistent with an exposed outlook, so it’s usually sniffing at whatever swell is around. The water's sitting at 63°F and the anomaly is -2°F, so it’s a touch cooler than average for this time of year but nothing too wild.
The first session worth paddling out for is Saturday morning, 8 August. It’s small, just 2ft of SSE swell, but with a clean 5 km/h W cross-off breeze, it’ll be workable. It’s a slow start, but you can get a few if you’re keen.
The real action starts to build on Sunday morning, 9 August. We’ve got 4ft of ENE swell pushing in with a nice 9-second period, combined energy of 224 (moderate), and a clean N cross-off breeze. This is the first good look of the window. The swell is a bit straight for the sandbar with that period, but it’s clean and fun.
Monday morning, 10 August, is the standout. The swell jumps to 6ft from the ENE, still 9 seconds, but the energy is pumping at 591 (strong). On top of that, we’ve got a 30 km/h offshore NW wind. That’s fresh offshore and clean. This is the best on offer for the whole run – solid, offshore, and punchy. It’s a bit big for beginners, but for the advanced crew, it’s a go.
After Monday, it drops off quickly. Tuesday and Wednesday have small, clean waves but nothing to get excited about. From Thursday morning, 13 August, we hit a rough patch. For the next week, the wind turns onshore or cross-on, and the swell stays tiny, often under 2ft. The energy is weak, and the conditions are poor. This is a real drought.
But hold on – there’s a light at the end of the tunnel. Thursday morning, 20 August, brings a 4ft SSE groundswell with a very long 13-second period. The combined energy is 501 (strong), and the wind is glassy at 5 km/h from the NE. This will be clean, powerful, and lined up. The long period means it’ll break better on the sandbar than a short-period swell, so keep an eye on this one. It’s a promising long-range call, but it’s two weeks out, so don’t book the week off just yet.
All in all, the standout is clearly Monday morning, 10 August, for that offshore, solid ENE swell. The Thursday 20 August glassy groundswell is a distant second, but it’s a beauty if it holds.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Sun afternoon. Very mild (max 17°C on Sun morning, min 10°C on Fri night). Winds increasing (light winds from the W on Sat morning, fresh winds from the NE by Sun night). | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Tue morning, min 10°C on Wed night). Winds increasing (light winds from the WSW on Tue morning, strong winds from the W by Wed night). | |||||||||||||||||||
Fri 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | ||||||||||||||
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) | SSE 9 | SSE 9 | SSE 9 | SSE 9 | E 8 | ENE 9 | ENE 9 | NE 8 | ENE 9 | NE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 50 | 48 | 45 | 30 | 63 | 217 | 188 | 1001 | 591 | 345 | 138 | 86 | 65 | 58 | 72 | 75 | 81 | 38 | 20 | 10 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | off | cross-off | off | cross-off | cross-off | cross | cross-on | cross-off |
High Tide | 3:37AM0.97m | 4:06PM1.51m | 4:57AM0.99m | 5:10PM1.60m | 6:04AM1.05m | 6:09PM1.69m | 7:00AM1.12m | 7:01PM1.76m | 7:49AM1.19m | 7:50PM1.78m | 8:34AM1.25m | 8:36PM1.75m | ||||||||
Low Tide | 9:51PM0.36m | 9:15AM0.39m | 11:05PM0.26m | 10:25AM0.37m | 00:08AM0.15m | 11:30AM0.33m | 1:02AM0.06m | 12:29PM0.27m | 1:50AM-0.01m | 1:22PM0.22m | 2:33AM-0.04m | 2:13PM0.19m | 3:13AM-0.02m | |||||||
 |  | | |  |  |  |  | |  | | | | | | | | | | | |
 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — |
 | 5:19 | — | — | 5:19 | — | — | 5:20 | — | — | 5:21 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — |
mm | — | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 15 | 14 | 14 | 17 | 13 | 17 | 16 | 16 | 15 | 19 | 19 | 13 | 15 | 14 | 13 | 14 | 16 | 12 |
Feels °C | 10 | 11 | 12 | 11 | 11 | 13 | 10 | 11 | 7 | 8 | 9 | 16 | 16 | 8 | 9 | 6 | 5 | 8 | 11 | 6 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | S 8 | S 8 | S 7 | E 8 | ENE 9 | ENE 9 | ENE 8 | ENE 9 | NE 9 | ENE 9 | ENE 9 | S 11 | S 8 | ENE 10 | ENE 10 | SSW 6 | ENE 10 | S 10 | S 10 |
| kJ | 50 | 31 | 57 | 39 | 63 | 217 | 188 | 572 | 591 | 345 | 138 | 86 | 188 | 66 | 72 | 75 | 59 | 38 | 1353 | 1029 |
Swell 2 Height (m) Direction Period (s) | S 8 | SSE 9 | SSE 9 | ENE 7 | S 7 | S 6 | SSE 8 | E 14 | S 13 | S 13 | E 13 | SSW 6 | ENE 9 | ENE 9 | S 8 | NNE 5 | ENE 10 | S 17 | ENE 10 | ENE 10 |
| kJ | 49 | 48 | 45 | 18 | 14 | 3 | 6 | 4 | 3 | 3 | 4 | 13 | 65 | 58 | 19 | 16 | 81 | 5 | 20 | 10 |
Swell 3 Height (m) Direction Period (s) | ENE 6 | E 7 | ENE 7 | SSE 9 | SSE 8 | SSE 8 | S 6 | SE 10 | — | — | S 12 | S 12 | — | S 16 | S 11 | S 8 | — | — | — | — |
| kJ | 8 | 25 | 18 | 30 | 14 | 7 | 3 | 4 | — | — | 3 | 3 | — | 5 | 2 | 11 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NE 4 | NE 5 | — | NE 8 | NNW 4 | NW 4 | NW 4 | NW 3 | NNW 3 | NNW 3 | N 4 | NW 4 | W 4 | SSW 8 | — | W 4 |
| kJ | — | — | — | — | 21 | 38 | — | 1001 | 54 | 34 | 24 | 1 | 1 | 5 | 14 | 22 | 29 | 475 | — | 10 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 2 | 0 | 0 | 125 | 0 | 0 | 0 | 7 | 115 | 64 | 1 | 0 | 0 | 0 | 0 | 185 | 232 | 2 | 2 | 4 |
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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