Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 11 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 4PM (local time) - 2.5ft (0.7m), 9s period, ENE swell with offshore winds.
- Most powerful swell: Monday 17 Aug, 4AM (local time) - 7.5ft (2.3m), 8s period, SE swell with 582 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 4PM (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 4PM. The primary swell is predicted to be 0.7m and 9s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Narrabeen-Alley Rights in the next 16 days are 2.3m 8s and forecast to arrive on Monday (Aug 17) at 4AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 9s period and expected on Thursday (Aug 13) at 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Tue 11th Aug) | 2.5ft (0.7m) 9s |
| Best Surf | 4PM (Tue 11th Aug) | 2.5ft (0.7m) 9s |
| Most Powerful | 4AM (Mon 17th Aug) | 7.5ft (2.3m) 8s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s talk about what’s brewing at Narrabeen-Alley Rights (Narrabeen) over the next couple of weeks.
Honestly, it’s a bit of a grim outlook. The first ten days are mostly a write-off – small, messy, and blown out. There are a few pulses of bigger swell from Sunday, August 16th onward, but the wind is on it, ruining any chance of quality. The combined energy jumps into the moderate range (246) on Sunday 16th, peaking at 499 on Monday 17th, but it’s all onshore and choppy. That 2.0m swell on Monday 17th is big, but with onshore winds, it’s a sloppy mess – honestly, that looks more like a kite surfing day than a paddle surfing day. For beginners, anything over 5ft starts to get tricky, and with onshore wind, it’s not safe. For the experts, the 7ft swell on Monday is big, but ugly. Later on, Sunday 23rd shows massive energy (1276), but again, cross-shore winds spoil it.
The water temp is 63°, which is about 2° cooler than usual for this time of year – so a bit chilly, nothing extreme.
The only two real standouts are at the very end of the run. Friday, August 21st morning is the best on offer. We’ve got a 3ft easterly swell with a solid 10-second period, and it’s glassy – that’s a huge positive. The combined energy is moderate (210), and with a light offshore wind of 3 mph, it’ll be clean and fun for the experienced crew. It’s not big, but it’ll be good. Then Saturday, August 22nd morning looks promising too: a 4ft ENE swell, 10-second period, and 9 mph cross-offshore winds from the west keeping it clean (245 energy). Both these mornings are worth getting out of bed for.
Narrabeen-Alley Rights is a very consistent spot, but it’s an advanced break and can have crowds often, so expect company if the conditions fire. The best swell direction is ENE, which both those good days have.
The rest of the forecast is a slog of poor surf, small energy readings (as low as 30), and unfriendly winds. A long, dry wait for those two clean windows.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Tue afternoon, min 11°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 15mm), heaviest on Fri night. Very mild (max 16°C on Fri morning, min 13°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
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 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 9 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | SSE 6 | SSE 7 | SE 7 | ESE 8 | ESE 8 | ESE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 78 | 78 | 48 | 52 | 52 | 50 | 54 | 35 | 29 | 31 | 30 | 29 | 29 | 18 | 18 | 227 | 277 | 407 | 464 | 372 | 491 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-off | cross-off | on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on |
High Tide | 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 | 11:22AM1.36m | 11:27PM1.21m | ||||||||
Low Tide | 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 | 5:01AM0.19m | 5:31PM0.36m | ||||||||
 | |  | |  | | | | | | |  |  | | | | | | | | | |
 | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — |
 | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:23 | — | — | 5:24 | — | — | 5:25 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 3 | 2 | — | 4 | 2 | — | 4 | 3 | 4 | 5 |
Temp °C | 19 | 20 | 14 | 18 | 19 | 14 | 16 | 16 | 15 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 16 |
Feels °C | 16 | 17 | 7 | 13 | 13 | 10 | 13 | 13 | 13 | 13 | 11 | 12 | 9 | 10 | 12 | 10 | 10 | 11 | 11 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | S 11 | S 11 | S 10 | S 9 | S 8 | ENE 10 | S 9 | S 8 | S 9 | S 8 | S 7 | ENE 9 | ENE 10 | S 7 | ENE 10 | ENE 10 | ENE 10 | S 10 | S 9 | SSW 9 |
| kJ | 78 | 723 | 584 | 314 | 160 | 86 | 54 | 399 | 159 | 184 | 157 | 150 | 29 | 18 | 187 | 19 | 20 | 19 | 46 | 40 | 15 |
Swell 2 Height (m) Direction Period (s) | S 12 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 9 | S 11 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 9 | S 15 | S 20 | S 11 | S 16 | S 15 | ENE 10 | ENE 10 | SSW 11 | S 11 |
| kJ | 3 | 78 | 48 | 52 | 52 | 50 | 20 | 35 | 29 | 31 | 30 | 29 | 18 | 8 | 37 | 46 | 39 | 10 | 18 | 24 | 10 |
Swell 3 Height (m) Direction Period (s) | — | — | — | S 15 | S 14 | S 13 | S 16 | S 19 | S 13 | S 19 | S 19 | S 16 | S 15 | — | ENE 10 | — | — | S 16 | ENE 9 | — | — |
| kJ | — | — | — | 4 | 4 | 3 | 5 | 7 | 13 | 29 | 29 | 20 | 4 | — | 18 | — | — | 19 | 17 | — | — |
Wind waves Height (m) Direction Period (s) | SSW 7 | — | W 4 | WNW 3 | — | W 3 | S 8 | S 9 | — | W 3 | — | — | S 7 | S 7 | — | SSE 6 | SSE 7 | SE 7 | ESE 8 | ESE 8 | ESE 8 |
| kJ | 120 | — | 9 | 4 | — | 8 | 117 | 623 | — | 2 | — | — | 311 | 422 | — | 227 | 277 | 407 | 464 | 372 | 491 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 1 | 0 | 4 | 0 | 1 | 18 | 1 | 1 | 2 | 2 | 54 | 2 | 182 | 195 | 195 | 173 | 162 | 123 | 2 |
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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