
Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 9 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 1PM (local time) - 2.5ft (0.7m), 9s period, ENE swell with cross-offshore winds.
- Most powerful swell: Monday 10 Aug, 7AM (local time) - 8ft (2.5m), 8s period, NE swell with 833 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 1PM (local time) - 2.5ft (0.7m), 9s period with ENE 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 Tuesday (Aug 11) at 1PM. The primary swell is predicted to be 0.7m 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 2.5m 8s and forecast to arrive on Monday (Aug 10) at 7AM. Winds are predicted to be 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 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Tue 11th Aug) | 2.5ft (0.7m) 9s |
| Best Surf | 1PM (Tue 11th Aug) | 2.5ft (0.7m) 9s |
| Most Powerful | 7AM (Mon 10th Aug) | 8ft (2.5m) 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’s cooking at Narrabeen-Alley Rights over the next couple of weeks.
Right off the bat, the first week is a total bust. We get a couple of surfable sessions on Monday the 10th – a morning pulse of 7 ft from the ENE at 9 seconds, but it’s a tough ask. The wind is screaming offshore at 22 mph, which keeps it clean, but paddling into anything is a real grunt. The combined energy is moderate at 659. By the afternoon, the wind is even stronger, and the swell drops to 6 ft. It’s just not worth it. After that, the rest of the week is flat or tiny, with onshore winds and rain showers.
We’re looking at about a ten-day dry spell, until Thursday the 20th. That morning things start to shift. The wind goes light from the WNW at 3 mph, and it’s glassy. The swell is tiny, only 3 ft from the SE at 7 seconds, but it’s clean. The energy is weak (102). It’s a little tease.
Now, here’s the one to get excited about. Friday the 21st of August. The morning is pure magic. Dead calm, flat glass, and a solid 6 ft swell from the ENE at 8 seconds. The combined energy jumps to strong at 737. This is the best on offer – clean, punchy, and the direction is perfect for this spot. It’s a bit much for beginners, but for the experienced crew, it’s going to be a classic. Crowds are often around, so get there early.
The weekend keeps the goods coming. Saturday the 22nd morning stays glassy with light NNW winds and a 5 ft ENE swell. The energy is moderate (404), and it’s clean. Then Sunday the 23rd morning brings a bigger pulse: 6 ft from the E, with a longer period of 11 seconds and a very strong energy reading of 1119. The wind is cross-off from the NNE at 12 mph, so it’s clean. The longer period means better shaped waves with more power, but it might straighten out a bit on the beach. For a point break, it’s a beauty.
Monday the 24th morning holds up with a 6 ft E swell, light cross-off winds, and a clean surface. The energy is moderate (585). Tuesday the 25th fades to 4 ft from the E with some rain, but still clean.
The water temp is about average for this time of year, nothing wild.
So, bottom line: skip the first ten days, but lock in Friday the 21st through Sunday the 23rd. That’s the window. The long-range stuff looks promising, but it’s not set in stone yet.
Rusty.
Short Range ForecastSome drizzle, heaviest during Mon morning. Warm (max 20°C on Tue morning, min 11°C on Tue night). Winds decreasing (strong winds from the NW on Mon afternoon, light winds from the W by Tue morning). | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Fri night. Very mild (max 16°C on Fri morning, min 10°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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) | ENE 9 | NE 9 | ENE 9 | NE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 9 | ENE 10 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | SSE 7 | SE 6 | SSE 6 | ENE 11 | SE 8 | ESE 5 |
Wave Graph | |||||||||||||||||||||
691 | 538 | 154 | 86 | 73 | 71 | 51 | 51 | 49 | 37 | 29 | 31 | 31 | 18 | 18 | 75 | 24 | 89 | 22 | 22 | 34 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-off | cross-off | on | cross | cross-on | cross-on | cross-on | cross | cross-on | cross-on |
High Tide | 6:09PM1.69m | 7:00AM1.12m | 7:01PM1.76m | 7:49AM1.19m | 7:50PM1.78m | 8:34AM1.25m | 8:36PM1.75m | 9:17AM1.31m | 9:20PM1.66m | 9:59AM1.34m | 10:02PM1.53m | 10:40AM1.36m | 10:44PM1.37m | ||||||||
Low Tide | 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 | 3:02PM0.19m | 3:51AM0.02m | 3:50PM0.23m | 4:27AM0.10m | 4:40PM0.28m | ||||||||
6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | |
— | 5:21 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:23 | — | — | 5:24 | — | |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 1 | 1 | 2 | 2 | 1 |
Temp °C | 17 | 14 | 16 | 20 | 20 | 13 | 19 | 19 | 14 | 15 | 15 | 14 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
Feels °C | 8 | 4 | 11 | 16 | 16 | 7 | 15 | 14 | 8 | 10 | 10 | 11 | 13 | 13 | 13 | 12 | 11 | 10 | 11 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | NE 9 | ENE 9 | NE 9 | S 11 | S 10 | S 9 | S 10 | ENE 9 | S 8 | S 10 | S 8 | S 9 | S 8 | S 8 | SSE 7 | S 6 | SSE 6 | SSW 12 | SE 8 | S 6 |
691 | 538 | 154 | 86 | 814 | 408 | 171 | 148 | 49 | 501 | 782 | 282 | 313 | 283 | 163 | 75 | 41 | 89 | 50 | 18 | 61 | |
Swell 2 Height (m) Direction Period (s) | S 13 | S 13 | E 13 | S 12 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | S 13 | ENE 10 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | S 20 | ENE 10 | ENE 10 | SE 7 | ESE 9 | S 12 | S 11 |
3 | 3 | 3 | 3 | 73 | 71 | 51 | 51 | 3 | 37 | 29 | 31 | 31 | 18 | 127 | 18 | 18 | 12 | 16 | 26 | 64 | |
Swell 3 Height (m) Direction Period (s) | — | — | S 12 | — | — | — | N 4 | S 14 | S 16 | S 16 | — | — | S 16 | S 19 | ENE 10 | S 16 | S 12 | S 14 | ENE 11 | ENE 10 | SE 8 |
— | — | 3 | — | — | — | 1 | 4 | 5 | 5 | — | — | 19 | 29 | 18 | 44 | 11 | 33 | 22 | 22 | 15 | |
Wind waves Height (m) Direction Period (s) | NNW 4 | NW 4 | WNW 4 | SW 6 | — | W 4 | WNW 3 | W 2 | SSW 8 | S 8 | S 10 | — | W 3 | S 8 | — | — | SE 6 | — | S 7 | S 7 | ESE 5 |
50 | 52 | 49 | 123 | — | 9 | 4 | 1 | 235 | 687 | 1021 | — | 1 | 400 | — | — | 24 | — | 240 | 266 | 34 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 127 | 128 | 185 | 4 | 0 | 0 | 1 | 4 | 2 | 2 | 81 | 1 | 1 | 2 | 1 | 2 | 54 | 41 | 2 | 103 | 54 |
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.











