Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 21 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 7PM (local time) - 6ft (1.9m), 6s period, NE swell with offshore winds.
- Most powerful swell: Tuesday 25 Aug, 10PM (local time) - 6ft (1.9m), 7s period, NE swell with 332 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 4AM (local time) - 2.5ft (0.8m), 4s period with SE 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 Sunday (Aug 23) at 4AM. The primary swell is predicted to be 0.8m and 4s period with a secondary swell of 0.4m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Narrabeen-Alley Rights in the next 16 days are 1.9m 7s and forecast to arrive on Tuesday (Aug 25) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Tuesday (Aug 25) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 23rd Aug) | 2.5ft (0.8m) 4s |
| Best Surf | 7PM (Tue 25th Aug) | 6ft (1.9m) 6s |
| Most Powerful | 10PM (Tue 25th Aug) | 6ft (1.9m) 7s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
Alright, Rusty here. Let's take a look at what's on the cards for Narrabeen-Alley Rights.
First up, the water temp is sitting at 63°, which is about 1° cooler than the average for this time of year. Nothing too wild, just a touch fresh.
Honestly, the next two weeks are looking pretty flat and frustrating. The wave energy is weak, barely cracking three digits at its best. For the first week, we’re stuck with tiny, weak swell – mostly around 1ft to 3ft. The wind is all over the shop, cross-offshore or cross-shore mostly, but the swell is just too small to get excited about. There’s one little window on the morning of Sunday the 23rd of August – it’s glassy, but the swell is only 1ft. It’s a frustrating start.
We finally see a bit of a pulse on Tuesday the 25th of August, with the swell pushing up to 5ft from the NE in the afternoon, and the combined energy hits 178. The wind is cross-off from the north, so it'll be clean. But the period is short, just 7 seconds, so it’s going to be a bit lumpy and won’t have much push. Same story on the morning of Wednesday the 26th of August, with 5ft NE swell and 221 energy, but the wind swings cross-shore from the SSW, so it’ll be chopped up.
The best of a pretty average bunch looks like Thursday the 27th of August. The morning starts glassy with the wind from the SSE, and there's 3ft of ENE swell with a period of 8 seconds. The energy is 125. It’s surfable, but not a standout. The swell direction is ENE, which is close to the optimum, and those glassy conditions will make it look cleaner than anything else on offer.
For the first week, nothing is a true standout. The conditions are too ordinary.
Moving into the second week, the surf remains small and uninspiring. From the 28th of August right through to the 5th of September, we’re looking at tiny waves, mostly between 2ft and 3ft. The wind is often cross-off or light, but the swell is weak and inconsistent. The period does stretch out a little, hitting 11 seconds on the 2nd of September, but the swell is only 2ft, so it’s not going to do much. The energy is consistently low, mostly two-digit numbers.
There is no period in this 16-day window that I'd call a standout. The surf is just too small and inconsistent. If you're desperate for a paddle, the glassy morning of the 27th of August is your best bet, but keep expectations low. This is a long, quiet stretch for Narrabeen-Alley Rights.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Sat night. Warm (max 21°C on Fri afternoon, min 13°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Tue night. Warm (max 23°C on Tue morning, min 14°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
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) | NNE 6 | NE 6 | NE 6 | NE 6 | SE 4 | NE 6 | NE 6 | NE 8 | NE 8 | NE 5 | NE 6 | NE 6 | NE 7 | ENE 7 | NE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 8 |
Wave Graph | ||||||||||||||||||||
67 | 23 | 13 | 9 | 15 | 9 | 9 | 18 | 10 | 67 | 132 | 89 | 178 | 297 | 221 | 158 | 123 | 125 | 181 | 188 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | on | cross-on | glassy | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | off | cross | on | on | glassy | cross-on | off |
High Tide | 3:43AM0.85m | 4:00PM1.28m | 4:55AM0.88m | 4:58PM1.34m | 5:48AM0.93m | 5:46PM1.40m | 6:30AM1.00m | 6:27PM1.47m | 7:07AM1.08m | 7:04PM1.52m | 7:41AM1.15m | 7:40PM1.55m | ||||||||
Low Tide | 10:06PM0.50m | 9:00AM0.55m | 11:10PM0.45m | 10:09AM0.54m | 11:58PM0.38m | 11:07AM0.49m | 00:37AM0.31m | 11:56AM0.43m | 1:12AM0.24m | 12:39PM0.37m | 1:43AM0.18m | 1:19PM0.32m | 2:14AM0.13m | |||||||
— | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | |
5:28 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | |
mm | — | — | — | — | 3 | — | — | — | — | — | — | — | — | 4 | — | — | — | — | — | — |
Temp °C | 21 | 17 | 20 | 18 | 16 | 16 | 17 | 16 | 18 | 17 | 17 | 23 | 22 | 16 | 17 | 15 | 15 | 15 | 15 | 15 |
Feels °C | 18 | 15 | 16 | 14 | 15 | 14 | 14 | 13 | 14 | 13 | 14 | 19 | 20 | 14 | 14 | 11 | 13 | 14 | 12 | 14 |
Swell 1 Height (m) Direction Period (s) | NE 6 | NE 6 | NE 6 | SSW 8 | NE 6 | S 9 | S 8 | S 10 | S 10 | S 10 | NE 6 | ENE 6 | S 9 | ENE 7 | NE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 8 |
46 | 23 | 13 | 22 | 10 | 327 | 157 | 252 | 162 | 123 | 132 | 53 | 42 | 297 | 221 | 158 | 123 | 125 | 181 | 188 | |
Swell 2 Height (m) Direction Period (s) | SE 7 | S 10 | SSW 6 | NE 6 | S 8 | NE 6 | S 13 | NE 8 | NE 8 | S 17 | S 10 | S 9 | S 16 | S 9 | S 11 | S 11 | S 11 | S 6 | S 6 | S 6 |
2 | 2 | 6 | 9 | 1 | 9 | 219 | 18 | 10 | 22 | 65 | 41 | 19 | 14 | 20 | 9 | 20 | 29 | 32 | 16 | |
Swell 3 Height (m) Direction Period (s) | S 11 | SE 8 | S 9 | E 9 | S 14 | S 17 | ENE 9 | E 14 | S 17 | E 13 | ENE 10 | ENE 9 | — | S 17 | S 15 | S 14 | — | S 10 | S 10 | S 13 |
2 | 2 | 6 | 2 | 4 | 24 | 8 | 4 | 23 | 3 | 9 | 32 | — | 50 | 18 | 16 | — | 17 | 17 | 55 | |
Wind waves Height (m) Direction Period (s) | NNE 6 | WNW 3 | WNW 2 | — | SE 4 | — | NE 6 | NE 4 | NE 5 | NE 5 | NE 6 | NE 6 | NE 7 | — | NNW 3 | S 2 | S 5 | — | — | NNE 3 |
67 | 1 | 1 | — | 15 | — | 9 | 12 | 42 | 67 | 176 | 89 | 178 | — | 8 | 1 | 34 | — | — | 6 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 186 | 261 | 323 | 56 | 1 | 18 | 4 | 1 | 189 | 0 | 19 | 0 | 0 | 2 | 87 | 2 | 0 | 173 | 0 |
Best forecast wave conditions in Sydney North Coast | ||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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.











