
Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 6 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 1AM (local time) - 5.5ft (1.7m), 9s period, SSE swell with offshore winds.
- Most powerful swell: Tuesday 8 Sep, 4PM (local time) - 7ft (2.2m), 10s period, SSE swell with 842 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 1AM (local time) - 5.5ft (1.7m), 9s period with SSE 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 Wednesday (Sep 09) at 1AM. The primary swell is predicted to be 1.7m and 9s period with a secondary swell of 0.2m and 10s. 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 2.2m 10s and forecast to arrive on Tuesday (Sep 08) at 4PM. Winds are predicted to be 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 Wednesday (Sep 09) at 7PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 9th Sep) | 5.5ft (1.7m) 9s |
| Best Surf | 1AM (Wed 9th Sep) | 5.5ft (1.7m) 9s |
| Most Powerful | 4PM (Tue 8th Sep) | 7ft (2.2m) 10s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s get into it.
First up, we’re looking at a classic Sydney stretch, Narrabeen-Alley Rights. It’s a beach and sandbar set-up, exposed to the swell, and it’s a very consistent spot. The water temperature is sitting at 64°, which is spot on for this time of year – nothing unusual there.
The outlook has a rough start. For the first week, from Sunday the 6th through to the 12th, it’s mostly a write-off. There are a few tiny pulses of swell, but the wind is a mess – cross-shore, cross-on, and choppy. Monday morning the 7th is glassy but with only 0.7ft of weak, short-period wind swell (energy of just 10). It’s not worth paddling out for. Tuesday afternoon on the 8th sees a bit more energy with a 7ft SSE swell (energy of 850), but the wind is onshore and the forecast is marginal. Honestly, it’s a long, quiet week with nothing to get excited about.
The real story starts Sunday the 13th. We get a clean-up crew. A light north-northeasterly breeze gives us a clean, cross-off wind, and the swell is a solid 4ft from the SSE with a decent 10-second period. The energy is moderate at 364. It’s not massive, but it’s clean, and that’s a winner after the dry spell. That Sunday morning is the standout of the first half.
Then Monday the 14th is even better. A moderate offshore wind from the NNW keeps it clean, with a 3ft groundswell from the SSE, 12-second period, and energy of 324. The afternoon session is similar, with a 3ft swell and 11-second period. If you can get out, Monday is the pick of the week.
Now, we’ve got a bit of a gap. Tuesday the 15th through to Friday the 18th is mostly poor again – small, weak, and choppy. Friday the 18th is a flat day with zero wave energy.
But hold onto your board, because the real action is on the weekend. Saturday the 19th September is the standout of the entire 16-day window. We’ve got a 8ft SSE groundswell rolling in with a 12-second period, pumping out a massive 2636 energy. The wind is light and cross-off from the WSW, making it clean. This is excellent surf, but that 8ft is serious – it’s for experienced surfers only. This is a proper, powerful groundswell. It’s a long-period swell, which means it’ll have longer gaps between sets, making paddling out easier, but at a beach break like this, it might break a bit straight on the banks. Still, this is the one to aim for.
Sunday the 20th is still pumping, with a 7ft SSE swell (energy of 1457) and a 13-second period, with light offshore winds again. Another fantastic morning for the advanced crew. The afternoon gets a bit messy with a cross-shore NE wind, so get in early.
By Monday the 21st, the swell is dropping and the onshore wind returns, so it’s back to choppy conditions.
The standout is undoubtedly Saturday the 19th. The combined energy is huge, the swell is solid, and the wind is perfect. For the advanced surfers, that’s the day. The Sunday the 13th and Monday the 14th are your best bets for cleaner, smaller waves if you’re not ready for the big stuff. If you’re a beginner, give the 19th and 20th a miss – the 8ft is too big for you.
Rusty out.
Short Range ForecastSome drizzle, heaviest during Mon night. Very mild (max 19°C on Sun morning, min 11°C on Tue night). Winds increasing (calm on Mon morning, fresh winds from the S by Mon night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Fri morning, min 11°C on Wed night). Winds decreasing (fresh winds from the S on Wed afternoon, light winds from the SW by Fri morning). | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
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 7 | E 10 | E 10 | E 10 | SSE 9 | E 10 | E 10 | SSE 10 | SSE 9 | SSE 9 | ESE 13 | ESE 11 | ESE 10 | ESE 9 | ENE 15 | E 15 | ENE 14 | ENE 13 | ENE 14 | ENE 14 | SSE 18 |
Wave Graph | |||||||||||||||||||||
22 | 9 | 8 | 8 | 366 | 9 | 8 | 842 | 495 | 275 | 17 | 49 | 39 | 17 | 21 | 4 | 18 | 18 | 19 | 19 | 108 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | glassy | cross-on | cross-on | cross-on | on | off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross | on | cross | cross-on | cross-on | off |
High Tide | 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 | 8:07AM1.38m | 8:14PM1.58m | 8:45AM1.44m | 8:55PM1.48m | ||||||||
Low Tide | 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 | 2:02PM0.17m | 2:35AM0.06m | 2:47PM0.16m | 3:08AM0.11m | ||||||||
6:07 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — | |
— | 5:38 | — | — | 5:39 | — | — | 5:40 | — | — | 5:40 | — | — | 5:42 | — | — | 5:43 | — | — | 5:43 | — | |
mm | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 18 | 16 | 18 | 17 | 16 | 16 | 15 | 14 | 16 | 14 | 15 | 14 | 15 | 15 | 17 | 15 | 14 | 16 | 15 | 14 |
Feels °C | 15 | 13 | 13 | 15 | 14 | 11 | 11 | 12 | 12 | 10 | 6 | 8 | 7 | 11 | 11 | 13 | 11 | 11 | 13 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | NE 7 | NE 6 | S 10 | S 8 | SSE 9 | E 10 | E 10 | SSE 10 | SSE 9 | SSE 9 | ESE 13 | ESE 11 | ESE 10 | ESE 9 | S 10 | S 10 | S 10 | S 10 | S 11 | S 11 | SSE 10 |
22 | 6 | 875 | 294 | 366 | 9 | 8 | 842 | 495 | 275 | 17 | 49 | 39 | 17 | 1555 | 1233 | 1098 | 1006 | 976 | 646 | 402 | |
Swell 2 Height (m) Direction Period (s) | E 11 | E 10 | NE 7 | NE 8 | E 10 | NE 7 | — | E 10 | E 10 | ENE 9 | ENE 9 | SSW 16 | S 18 | E 15 | ESE 9 | E 15 | ENE 14 | ENE 13 | ENE 14 | S 18 | SSE 18 |
9 | 9 | 2 | 2 | 8 | 2 | — | 8 | 8 | 8 | 8 | 50 | 55 | 4 | 15 | 4 | 18 | 18 | 19 | 54 | 108 | |
Swell 3 Height (m) Direction Period (s) | — | S 14 | E 10 | E 10 | NE 8 | — | — | — | NE 9 | E 16 | S 16 | NE 16 | E 16 | NE 15 | ENE 15 | S 21 | E 10 | E 9 | E 9 | ENE 14 | ENE 13 |
— | 4 | 8 | 8 | 2 | — | — | — | 3 | 5 | 5 | 10 | 5 | 9 | 21 | 9 | 2 | 2 | 2 | 19 | 17 | |
Wind waves Height (m) Direction Period (s) | SSW 7 | S 8 | — | — | — | S 8 | S 9 | — | — | — | S 8 | S 10 | S 10 | S 10 | S 11 | S 10 | — | S 10 | — | — | — |
154 | 160 | — | — | — | 958 | 961 | — | — | — | 1049 | 2662 | 1478 | 1545 | 2157 | 1568 | — | 1302 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 653 | 1 | 1 | 391 | 195 | 41 | 2 | 0 | 2 | 806 | 81 | 2 | 54 | 1 | 1 | 162 | 1 | 2 | 18 | 0 |
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.










