Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 23 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 4AM (local time) - 4.5ft (1.3m), 6s period, NE swell with cross-offshore winds.
- Most powerful swell: Tuesday 25 Aug, 10PM (local time) - 5ft (1.5m), 8s period, ENE swell with 271 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 4AM (local time) - 3.5ft (1.1m), 5s 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 (Aug 24) at 4AM. The primary swell is predicted to be 1.1m and 5s period with a secondary swell of 0.2m and 8s. 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 1.5m 8s 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 1.7m 8s period and expected on Thursday (Aug 27) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Mon 24th Aug) | 3.5ft (1.1m) 5s |
| Best Surf | 4AM (Tue 25th Aug) | 4.5ft (1.3m) 6s |
| Most Powerful | 10PM (Tue 25th Aug) | 5ft (1.5m) 8s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
G'day, I'm Rusty. Let's have a look at what's on the cards for Narrabeen-Alley Rights. This spot is a beach/sandbar set-up that's exposed to the swell, and it's a very consistent break—so when there's energy, it'll be there. The water temp is about average for this time of year, so nothing out of the ordinary.
Alright, the outlook kicks off on Monday, 24th August. The morning is a bit of a mixed bag. We've got a small 3ft NE swell with a short period of 5 seconds, and while the wind is a light cross-off from the north, the combined swell energy is a weak 61. It's surfable, but ordinary. The afternoon sees the wind crank up to 16 mph from the NE, making a mess of the 4ft NE swell, so give that a miss.
Tuesday, 25th August, looks a bit better. The morning brings a 5ft NE swell with a slightly longer period of 6 seconds, and the combined energy jumps to a moderate 283. The wind is a gentle cross-off from the north, leaving the surface clean. This is a solid window—decent size, clean conditions. The afternoon sees a 4ft ENE swell with a 7-second period and offshore wind from the NW, but it's only rated as ordinary.
Wednesday, 26th August, is not the day. A stormy trough brings risk of thunderstorms and rain showers, with strong onshore winds from the SSW and SSE. The surf is a choppy 3ft to 4ft, and the quality is poor. Save your energy.
Thursday, 27th August, we get a glassy morning. The wind is dead calm from the south, with only 3ft of ENE swell. The combined energy is a weak 76, so it's small and clean but not much to get excited about. The afternoon turns cross-on and choppy.
Friday, 28th August, is another small day. The morning has 2ft ENE swell with a light cross-off from the NNE, clean but tiny. The afternoon gets blown out.
Now, here's the first real standout. Saturday, 29th August. The morning is glassy, with a light north-easterly breeze. The swell is a 4ft SSE groundswell with a period of 9 seconds, and the combined energy is a solid 253. That's clean, fun-sized surf with good energy. The afternoon turns cross-on and choppy, so get on it early.
Sunday, 30th August, is a write-off with onshore winds and poor surf.
Monday, 31st August, starts with a glassy morning, but the swell has dropped to a tiny 2ft ENE. The combined energy is a weak 92. It's clean, but barely a ripple.
The rest of the first week is a mix of small, clean windows and onshore slop. Tuesday, 1st September, has a 4ft NE swell in the afternoon, but it's onshore and messy.
Wednesday, 2nd September, morning is glassy again with a 2ft NE swell, but it's weak.
Thursday, 3rd September, morning has offshore wind from the NW with a 2ft ENE swell, clean but small.
Now, the second week brings a couple of interesting calls. Saturday, 5th September, the morning has a 3ft SSE swell with a very long period of 16 seconds. The combined energy is a powerful 427. This is a groundswell, and with that long period, it'll be best here at this beach/sandbar where it might break a bit straight, but the energy is there. The wind is a gentle cross-shore from the SW, so expect some shape. This is a standout for the experts—the size is manageable, but the long period and clean conditions make it a quality window.
Sunday, 6th September, continues the run. The morning has a 3ft SSE swell with a 13-second period, combined energy of 325, and a clean cross-off from the NNE. Another solid option for a Sunday session.
After that, Monday and Tuesday, 7th and 8th September, drop off quickly with small, weak swell and poor conditions.
So, the best bets on offer are the glassy windows on Saturday, 29th August, and the bigger, long-period groundswell on Saturday, 5th September. Get out there early for the cleanest conditions. The crowds are listed as "often" here, so expect company, especially on those clearer days.
Rusty.
Short Range ForecastModerate rain (total 13mm), heaviest on Wed morning. Warm (max 22°C on Tue morning, min 14°C on Sun night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Fri morning, min 14°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | ||||||||||||||
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 4 | NE 5 | NE 5 | NE 6 | NE 6 | ENE 7 | NE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 8 | NE 8 | ENE 8 | SSE 9 | SSE 10 | SSE 9 |
Wave Graph | |||||||||||||||||||
29 | 55 | 70 | 147 | 166 | 178 | 255 | 179 | 133 | 82 | 76 | 51 | 88 | 59 | 67 | 42 | 201 | 218 | 164 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-off | cross-off | off | off | cross-on | cross-on | cross-on | glassy | cross-on | glassy | cross-off | cross | cross-off | glassy | cross-on | cross |
High Tide | 5:48AM0.93m | 5:46PM1.40m | 6:30AM1.00m | 6:27PM1.47m | 7:07AM1.08m | 7:04PM1.52m | 7:41AM1.15m | 7:40PM1.55m | 8:15AM1.23m | 8:15PM1.55m | 8:49AM1.30m | 8:51PM1.52m | |||||||
Low Tide | 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 | 1:59PM0.28m | 2:44AM0.10m | 2:39PM0.25m | 3:15AM0.10m | ||||||
— | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — | |
— | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:32 | — | — | 5:34 | — | |
mm | — | — | — | — | — | 3 | 2 | 5 | 3 | — | — | — | — | — | — | — | — | — | 3 |
Temp °C | 17 | 19 | 18 | 17 | 22 | 18 | 16 | 17 | 16 | 15 | 16 | 15 | 15 | 17 | 16 | 16 | 17 | 17 | 17 |
Feels °C | 14 | 16 | 14 | 14 | 18 | 17 | 15 | 14 | 13 | 13 | 14 | 13 | 14 | 15 | 14 | 15 | 16 | 16 | 17 |
Swell 1 Height (m) Direction Period (s) | S 10 | NE 5 | S 10 | S 10 | NE 6 | S 10 | NE 8 | ENE 8 | ENE 8 | S 8 | S 8 | S 8 | S 11 | S 9 | S 11 | S 10 | SSE 9 | SSE 10 | SSE 9 |
247 | 55 | 96 | 72 | 94 | 29 | 255 | 179 | 133 | 324 | 320 | 191 | 499 | 201 | 396 | 235 | 201 | 218 | 164 | |
Swell 2 Height (m) Direction Period (s) | NE 8 | S 10 | S 18 | ENE 10 | S 10 | S 16 | S 9 | S 15 | S 11 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 8 | S 9 | ENE 8 | ENE 8 | ENE 8 | ENE 9 |
18 | 156 | 25 | 9 | 45 | 20 | 14 | 42 | 9 | 82 | 76 | 51 | 88 | 59 | 125 | 42 | 45 | 41 | 62 | |
Swell 3 Height (m) Direction Period (s) | E 14 | ENE 8 | E 13 | S 17 | NE 9 | — | S 16 | — | — | S 15 | S 15 | S 14 | — | S 12 | NE 8 | — | S 10 | S 10 | NE 7 |
4 | 6 | 3 | 6 | 23 | — | 21 | — | — | 5 | 18 | 66 | — | 77 | 67 | — | 8 | 8 | 2 | |
Wind waves Height (m) Direction Period (s) | NE 4 | NE 5 | NE 5 | NE 6 | NE 6 | ENE 7 | NNW 2 | SSW 4 | S 6 | — | — | — | — | — | — | NE 4 | NE 4 | ENE 4 | NE 4 |
29 | 79 | 70 | 147 | 166 | 178 | 1 | 13 | 101 | — | — | — | — | — | — | 24 | 7 | 9 | 3 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 178 | 19 | 0 | 0 | 0 | 2 | 54 | 2 | 0 | 18 | 0 | 0 | 127 | 0 | 0 | 18 | 19 |
Best forecast wave conditions in Sydney North Coast | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











