Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 4 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 4AM (local time) - 5.5ft (1.7m), 10s period, SSE swell with offshore winds.
- Most powerful swell: Thursday 10 Sep, 1AM (local time) - 10ft (3.0m), 9s period, SSE swell with 1,353 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 4PM (local time) - 3.5ft (1.0m), 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 Saturday (Sep 05) at 4PM. The primary swell is predicted to be 1.0m and 5s 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 3.0m 9s and forecast to arrive on Thursday (Sep 10) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 9s period and expected on Tuesday (Sep 08) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Sat 5th Sep) | 3.5ft (1.0m) 5s |
| Best Surf | 4AM (Wed 9th Sep) | 5.5ft (1.7m) 10s |
| Most Powerful | 1AM (Thu 10th Sep) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
G’day, it’s Rusty. Look, I’ll be straight with you – this 16-day window for Narrabeen-Alley Rights is a proper waiting game. There’s no surf worth paddling out for in the first week, and the decent stuff that shows up later is both brief and a bit tricky. Overall, it’s a lean stretch, but if you’re keen to scratch an itch, there’s one morning that stands out.
The first real opportunity doesn’t arrive until Wednesday 9th September. The morning is your only shot. The swell comes from the SSE at 5 ft with a period of 9 seconds, and the combined energy hits 426 (moderate to strong). That’s a solid, grunty groundswell with enough juice to shape up. A light offshore breeze from the NW (10 km/h) will keep things clean. This is the pick of the entire forecast – a rare moment of good surf conditions. Still, this is an advanced break, very consistent, and it’s often crowded, so expect company. The water temp is 64°, which is about normal for this time of year.
The rest of the run is grim. The wind swings onshore by Wednesday afternoon with a fresh SSE breeze at 19 mph, and the swell drops right off. Thursday and Friday are tiny – 0.3 ft to 0.7 ft – with long, drawn-out periods around 15 seconds and messy onshore wind. Not worth a look.
Come Tuesday 15th September, there’s a little pulse of 5 ft NE swell in the morning, with a combined energy of 192 (moderate). A light NNE breeze (6 mph) keeps it clean. But the swell period is only 6 seconds – short-period windswell – so it’ll be lumpy and weak. Surfable, but ordinary. The afternoon turns into a mess with a 16 mph crosswind and 7 ft lines that are just blown out. That morning is a second-tier option at best, but the quality is low.
After that, it’s back to tiny, weak, or washed-out conditions right through to the end of the 16-day window. There’s a big gap with no recommendations from the 16th onward, and the last couple of days show zero swell and strong onshore winds.
So, bottom line: one standout morning on Wednesday 9th September – get it while it’s clean. Everything else is a pass. The break is a beach/sandbar setup, so with the SSE swell and a little offshore wind, it could offer some punchy waves. But don’t sleep on it – it’s a short window.
Rusty.
Short Range ForecastMostly dry. Warm (max 31°C on Sat afternoon, min 12°C on Sun night). Winds increasing (light winds from the W on Fri night, fresh winds from the NW by Sat afternoon). | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Mon morning, min 10°C on Wed night). Winds increasing (calm on Mon morning, strong winds from the S by Wed night). | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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) | NE 8 | NE 8 | NE 4 | ENE 9 | NE 5 | NE 6 | NE 7 | NE 7 | E 10 | E 10 | E 10 | ENE 10 | SE 9 | ENE 10 | NE 10 | SSE 9 | SSE 9 | SSE 9 | E 16 | NE 15 | ENE 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 20 | 28 | 13 | 17 | 54 | 56 | 30 | 15 | 8 | 8 | 8 | 11 | 29 | 9 | 4 | 418 | 359 | 1353 | 10 | 9 | 21 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | off | cross-off | off | cross-off | cross-off | cross-on | cross-off | cross-off | cross-on | cross-on | cross-on | on | off | off | cross-on | cross-on | cross | cross-on | cross-on |
High Tide | 1:26PM1.41m | 2:16AM0.95m | 2:40PM1.43m | 3:45AM0.95m | 3:54PM1.48m | 4:59AM1.01m | 5:00PM1.55m | 5:57AM1.10m | 5:56PM1.61m | 6:45AM1.20m | 6:46PM1.65m | 7:28AM1.30m | 7:32PM1.63m | ||||||||
Low Tide | 8:23PM0.36m | 7:48AM0.45m | 9:47PM0.31m | 9:08AM0.46m | 10:57PM0.23m | 10:24AM0.42m | 11:54PM0.14m | 11:28AM0.35m | 00:41AM0.07m | 12:24PM0.27m | 1:23AM0.03m | 1:14PM0.21m | 2:00AM0.03m | ||||||||
 | |  |  | | | | | | | |  | | | | |  | | | |  | |
 | 6:09 | — | — | 6:07 | — | — | 6:07 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — |
 | — | 5:37 | — | — | 5:38 | — | — | 5:38 | — | — | 5:39 | — | — | 5:40 | — | — | 5:40 | — | — | 5:42 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 18 | 16 | 29 | 31 | 24 | 20 | 20 | 17 | 19 | 19 | 16 | 13 | 14 | 14 | 19 | 16 | 13 | 12 | 15 | 15 |
Feels °C | 17 | 14 | 15 | 24 | 26 | 20 | 16 | 16 | 15 | 17 | 16 | 8 | 8 | 11 | 12 | 17 | 11 | 4 | 5 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 8 | S 7 | S 9 | NE 5 | NE 6 | NE 7 | S 7 | S 10 | S 8 | S 8 | ENE 10 | S 9 | S 11 | SSE 10 | SSE 9 | NE 9 | NE 9 | S 21 | S 18 | S 13 |
| kJ | 498 | 112 | 52 | 85 | 54 | 56 | 30 | 66 | 1058 | 253 | 223 | 11 | 836 | 1570 | 725 | 418 | 3 | 3 | 223 | 758 | 3012 |
Swell 2 Height (m) Direction Period (s) | NE 8 | ENE 10 | S 11 | ENE 9 | S 9 | S 10 | E 11 | NE 7 | NE 6 | NE 8 | E 10 | — | SE 9 | ENE 10 | NE 10 | NE 9 | S 16 | E 16 | E 16 | NE 15 | S 23 |
| kJ | 20 | 18 | 89 | 17 | 62 | 44 | 9 | 15 | 2 | 2 | 8 | — | 29 | 9 | 4 | 3 | 5 | 5 | 5 | 9 | 260 |
Swell 3 Height (m) Direction Period (s) | ENE 10 | S 18 | NE 4 | NE 7 | E 9 | E 11 | — | E 10 | E 10 | E 10 | NE 7 | — | ENE 10 | — | — | E 16 | E 17 | E 16 | NE 16 | NE 15 | ENE 15 |
| kJ | 19 | 26 | 13 | 2 | 7 | 9 | — | 9 | 8 | 8 | 2 | — | 10 | — | — | 5 | 6 | 5 | 10 | 9 | 21 |
Wind waves Height (m) Direction Period (s) | — | NE 8 | — | NNE 4 | WNW 3 | WSW 4 | SSW 7 | — | S 10 | — | — | SSE 9 | — | — | — | NNW 2 | SSE 9 | SSE 9 | S 12 | S 11 | — |
| kJ | — | 28 | — | 10 | 1 | 11 | 102 | — | 1447 | — | — | 1972 | — | — | — | 1 | 359 | 1353 | 2559 | 2528 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 38 | 1 | 19 | 0 | 6 | 4 | 2 | 1 | 1 | 18 | 195 | 2 | 2 | 1 | 0 | 134 | 195 | 81 | 403 | 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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