Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 13 Sep 2026:
- Best quality surf: Friday 18 Sep, 1AM (local time) - 6ft (1.8m), 9s period, SSE swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 1AM (local time) - 6ft (1.8m), 9s period, SSE swell with 540 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 1AM (local time) - 5.5ft (1.7m), 6s period with NNE 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 (Sep 14) at 1AM. The primary swell is predicted to be 1.7m and 6s period with a secondary swell of 1.4m and 6s. 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 1.8m 9s and forecast to arrive on Friday (Sep 18) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 10s period and expected on Wednesday (Sep 16) at 7PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Mon 14th Sep) | 5.5ft (1.7m) 6s |
| Best Surf | 1AM (Fri 18th Sep) | 6ft (1.8m) 9s |
| Most Powerful | 1AM (Fri 18th Sep) | 6ft (1.8m) 9s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
Righto, let’s have a look at what’s on the cards for Narrabeen-Alley Rights. It’s a beach and sandbar set-up, so it can be a bit fickle, and looking at the 16-day window, it’s fair to say we’re going to be scratching around for a while. The start is proper bleak. The first week is mostly tiny, messy, and blown out. We’ve got nothing but poor surf and onshore slop, with a few glassy mornings where there’s just nothing to ride. That run from Monday the 16th right through to Friday the 20th is a real drought. There’s a little blip on Saturday the 19th – a clean morning with 0.4m of SSE swell, but it’s got a long 18-second period, so it’ll be lining up a bit weird on the bank, and it’s still gutless. Honestly, that’s a skunk session.
We start to see a bit of life on Tuesday the 22nd. The morning looks clean with a NW offshore, and there’s 1.1m of SE swell pushing in. The combined energy is moderate at 112, so it’s not a powerhouse, but it’s far better than what we’ve had. The wind is cross-off, so it’ll be holding some shape. Wednesday the 23rd has a similar vibe – 0.9m of ESE swell, clean morning, but the energy is a bit all over the place, touching 120. It’s surfable, but nothing to write home about.
Then we hit a proper boost on Saturday the 26th. The swell jumps to 1.8m out of the NE, but the wind is howling from the SSW at 40 km/h. It’s a strong cross-shore with messy, lumpy chop. The energy is strong at 243, but with that wind, it’s going to be a battle. This is where the setup looks more interesting for the kite crew than for a paddle surfer. The break will be blown apart.
Monday the 28th is where the real hope lies. The morning has 1.3m of SSE swell, with a period of 7 seconds, and the energy is dialed up to 272. It’s a light cross-onshore, so it won’t be perfect, but it’s the biggest, most powerful swell of the run. That said, it’s coming from the SSE, which isn’t the optimum ENE direction for this spot, so it might not be holding its best shape. Still, it’s the standout of the window. Tuesday the 29th offers another chance – 1.2m of E swell in the morning, with a NNE cross-off breeze and clean conditions. The energy is 125, which is moderate, and it’s looking like the best combo of size, wind, and direction. That Tuesday morning, and maybe that Monday morning, are your pick of the fortnight.
For Narrabeen-Alley Rights, it’s a bit of a waiting game. There’s a long stretch of nothing, but when the swell arrives near the end, it’s worth getting out there. The water temp anomaly isn’t given, so I can’t tell if it’s warmer or colder than usual, but the surf will be on the bigger side for the banks. Keep an eye on the Monday and Tuesday – those are the ones.
Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Mon morning, min 11°C on Tue night). Winds increasing (light winds from the NNW on Sun night, fresh winds from the S by Wed morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Sat morning, min 10°C on Wed night). Winds decreasing (fresh winds from the S on Wed night, calm by Thu night). | ||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||
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 5 | NE 6 | NE 7 | NE 7 | NE 7 | ENE 14 | ENE 13 | ENE 13 | ENE 13 | E 13 | SSE 9 | E 12 | E 12 | E 12 | SSE 18 | NE 4 | NE 5 |
Wave Graph  | |||||||||||||||||||
 kJ | 253 | 54 | 64 | 152 | 77 | 44 | 18 | 20 | 16 | 17 | 17 | 3 | 540 | 3 | 3 | 3 | 108 | 12 | 16 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | off | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | on | cross-off | glassy | cross | cross-off | cross-off | cross-on | off |
High Tide | 9:57AM1.47m | 10:15PM1.23m | 10:35AM1.44m | 10:56PM1.11m | 11:14AM1.39m | 11:41PM1.00m | 12:00PM1.32m | 00:37AM0.91m | 12:56PM1.26m | 1:51AM0.85m | 2:05PM1.23m | 3:18AM0.86m | |||||||
Low Tide | 3:40AM0.19m | 4:16PM0.23m | 4:11AM0.28m | 5:03PM0.30m | 4:43AM0.37m | 5:53PM0.38m | 5:19AM0.45m | 6:52PM0.45m | 6:04AM0.53m | 8:05PM0.49m | 7:05AM0.59m | 9:22PM0.48m | |||||||
 |  | |  |  | | | | | | | | | | | | | | | |
 | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | 5:52 | — | — | 5:50 | — | — | 5:48 | — | — |
 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 23 | 21 | 22 | 20 | 17 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 18 | 17 | 16 | 24 | 22 | 20 |
Feels °C | 13 | 21 | 17 | 19 | 18 | 14 | 6 | 4 | 5 | 6 | 9 | 11 | 12 | 14 | 13 | 15 | 19 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | NE 6 | NE 6 | S 11 | NE 6 | NE 7 | NE 7 | NE 7 | NE 7 | ENE 13 | ENE 13 | E 13 | S 10 | SSE 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 8 |
| kJ | 156 | 54 | 81 | 98 | 77 | 44 | 11 | 2 | 16 | 17 | 3 | 1115 | 540 | 347 | 325 | 288 | 127 | 99 | 50 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 11 | ENE 13 | S 10 | S 10 | S 9 | ENE 13 | ENE 14 | — | — | ENE 13 | S 19 | E 13 | E 12 | S 17 | S 17 | S 15 | S 17 | NE 5 |
| kJ | 175 | 123 | 16 | 48 | 29 | 14 | 18 | 20 | — | — | 17 | 7 | 3 | 3 | 24 | 86 | 113 | 143 | 16 |
Swell 3 Height (m) Direction Period (s) | ENE 13 | ENE 13 | — | ENE 12 | NE 13 | ENE 13 | S 16 | — | — | — | — | E 13 | — | S 18 | E 12 | E 12 | SSE 18 | SE 10 | S 15 |
| kJ | 17 | 17 | — | 15 | 6 | 17 | 5 | — | — | — | — | 3 | — | 6 | 3 | 3 | 108 | 4 | 40 |
Wind waves Height (m) Direction Period (s) | NNE 6 | — | NE 5 | NE 6 | SW 3 | SSE 4 | S 8 | S 10 | S 10 | S 11 | S 10 | — | — | — | — | — | NNE 3 | NE 4 | — |
| kJ | 253 | — | 64 | 152 | 3 | 11 | 1204 | 2053 | 2631 | 3564 | 1979 | — | — | — | — | — | 1 | 12 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 19 | 0 | 2 | 123 | 115 | 833 | 734 | 195 | 2 | 2 | 0 | 1 | 18 | 1 | 0 | 18 | 1 |
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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