Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 31 Aug 2026:
- Best quality surf: Monday 7 Sep, 7AM (local time) - 4.5ft (1.4m), 6s period, NE swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 7PM (local time) - 6ft (1.9m), 7s period, NE swell with 312 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 4PM (local time) - 1.5ft (0.4m), 11s period with ENE 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 Tuesday (Sep 01) at 4PM. The primary swell is predicted to be 0.4m and 11s period with a secondary swell of 0.8m and 4s. 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 1.9m 7s and forecast to arrive on Monday (Sep 07) at 7PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 10s period and expected on Sunday (Sep 06) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Tue 1st Sep) | 1.5ft (0.4m) 11s |
| Best Surf | 7AM (Mon 7th Sep) | 4.5ft (1.4m) 6s |
| Most Powerful | 7PM (Mon 7th Sep) | 6ft (1.9m) 7s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
Alright, listen up. The next two weeks at Narrabeen-Alley Rights is going to be a test of your patience. We're starting with a long, flat spell that will have you staring at the horizon more than actually surfing.
Right now, the water's about 64°F, which is pretty much normal for this time of year. Monday the 31st is just a tiny 1ft ENE swell, and it’s bumpy with a cross-shore wind. Not even worth bringing your board. Tuesday the 1st, we get a touch more size, up to 1ft, with a longer period. The afternoon NW wind goes offshore and cleans it up, but it’s still just ordinary. This tiny, weak surf pattern carries on through the middle of the week. On Thursday morning, the period drops to 5 seconds, which is just junk. The weekend looks poor too – small, weak, and bumpy. We get one glassy moment on Sunday morning with a knee-high ripple, but that's it.
Here’s where it gets interesting – and not in a good way. Monday the 7th, the swell jumps to 4ft from the NE, but it’s only a 6-second period. The energy reading climbs to 177, so there's a bit of push, but it's messy. Tuesday the 8th sees more size, up to 5ft, with a bit more period, but the cross-shore and then onshore winds will chop it to pieces. It’s just a stormy mess.
Then, on Thursday the 10th, it goes completely off the charts. We're looking at a huge 13ft SE swell with a very strong energy reading of 3579. That is way, way too big for this place. It’s going to be a total closeout and incredibly dangerous. This is not a surfing day. This is a day to watch from the safety of the car park.
The one real opportunity in this whole outlook is Friday the 11th. The swell drops to a very manageable 6ft from the E with a 9-second period and energy still at 831. The magic is in the morning when the wind is dead calm and it's glassy. That’s going to be a proper, fun, clean wave. This is your window. Get out there early because the light onshore wind in the afternoon will mess it up.
After that, it's a slow fade. The weekend has leftover 5ft waves but with a cross-shore wind, and then it just gets smaller and more unremarkable. The whole second week is pretty much a write-off.
So, mark your calendar for Friday morning. That's the one to go for. The rest is a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Tue afternoon, min 14°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Sat afternoon, min 13°C on Thu night). Winds decreasing (fresh winds from the WNW on Sat morning, calm by Sun morning). | |||||||||||||||||||
Mon 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | ||||||||||||||
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) | ENE 9 | ENE 9 | ENE 11 | ENE 11 | NE 6 | ENE 10 | ENE 10 | ENE 10 | NNE 5 | ENE 10 | SSE 10 | ENE 10 | ENE 10 | NE 5 | NE 5 | NE 5 | NE 6 | E 11 | NE 7 | NE 5 |
Wave Graph  | ||||||||||||||||||||
 kJ | 16 | 15 | 23 | 37 | 38 | 33 | 33 | 33 | 19 | 19 | 33 | 19 | 19 | 28 | 17 | 10 | 9 | 9 | 18 | 58 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | off | off | off | cross | off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | glassy | cross | cross-off |
High Tide | 10:08PM1.36m | 10:42AM1.43m | 10:53PM1.25m | 11:27AM1.43m | 11:46PM1.13m | 12:21PM1.42m | 00:52AM1.02m | 1:26PM1.41m | 2:16AM0.95m | 2:40PM1.43m | 3:45AM0.95m | 3:54PM1.48m | ||||||||
Low Tide | 4:06PM0.26m | 4:20AM0.17m | 4:56PM0.28m | 4:58AM0.24m | 5:53PM0.32m | 5:43AM0.32m | 7:02PM0.36m | 6:38AM0.40m | 8:23PM0.36m | 7:48AM0.45m | 9:47PM0.31m | 9:08AM0.46m | 10:57PM0.23m | |||||||
 |  | | |  |  | | | | | | | | |  | | | | |  | |
 | — | — | 6:13 | — | — | 6:11 | — | — | 6:11 | — | — | 6:09 | — | — | 6:07 | — | — | 6:07 | — | — |
 | 5:35 | — | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:38 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 |
Temp °C | 17 | 16 | 23 | 26 | 20 | 26 | 25 | 21 | 24 | 23 | 16 | 18 | 17 | 18 | 25 | 26 | 18 | 16 | 17 | 17 |
Feels °C | 14 | 15 | 19 | 23 | 17 | 21 | 23 | 19 | 20 | 18 | 11 | 13 | 12 | 15 | 18 | 21 | 15 | 12 | 14 | 15 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | NNE 5 | S 10 | NE 7 | S 11 | S 9 | S 11 | S 9 | S 9 | S 9 | S 10 | S 9 | S 8 |
| kJ | 129 | 104 | 196 | 182 | 133 | 106 | 76 | 71 | 19 | 53 | 17 | 269 | 101 | 192 | 85 | 56 | 27 | 479 | 220 | 60 |
Swell 2 Height (m) Direction Period (s) | S 16 | S 14 | ENE 11 | ENE 11 | NE 6 | NE 6 | NNE 5 | ENE 10 | S 10 | NE 6 | SSE 10 | NE 7 | ENE 10 | NE 5 | NE 5 | NE 5 | NE 6 | NE 6 | E 10 | S 13 |
| kJ | 79 | 136 | 23 | 37 | 38 | 20 | 11 | 33 | 74 | 13 | 33 | 7 | 19 | 28 | 16 | 10 | 9 | 5 | 8 | 117 |
Swell 3 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 8 | N 12 | ENE 10 | ENE 10 | ENE 10 | SSE 13 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | S 11 | ENE 9 | ENE 9 | ENE 9 | E 11 | E 11 | S 19 | E 10 |
| kJ | 16 | 15 | 7 | 3 | 34 | 33 | 33 | 32 | 19 | 19 | 18 | 19 | 10 | 17 | 17 | 8 | 9 | 9 | 28 | 8 |
Wind waves Height (m) Direction Period (s) | NE 2 | NE 3 | NE 4 | NE 4 | NW 3 | NW 3 | — | NW 3 | WNW 3 | WSW 3 | SSW 5 | W 3 | NE 3 | — | NW 3 | W 4 | SSW 4 | — | NE 7 | NE 5 |
| kJ | 1 | 3 | 3 | 25 | 2 | 2 | — | 2 | 4 | 1 | 23 | 4 | 4 | — | 1 | 9 | 6 | — | 18 | 58 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 18 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 0 | 4 | 127 | 1 | 1 | 6 | 1 | 1 | 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.
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