Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 25 Aug 2026:
- Best quality surf: Friday 28 Aug, 10AM (local time) - 5ft (1.6m), 11s period, SSE swell with cross-offshore winds.
- Most powerful swell: Saturday 29 Aug, 4AM (local time) - 5ft (1.6m), 11s period, SSE swell with 575 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 10PM (local time) - 4.5ft (1.3m), 8s 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 Tuesday (Aug 25) at 10PM. The primary swell is predicted to be 1.3m and 8s period. 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 1.6m 11s and forecast to arrive on Saturday (Aug 29) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 9s period and expected on Thursday (Aug 27) at 7AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Tue 25th Aug) | 4.5ft (1.3m) 8s |
| Best Surf | 10AM (Fri 28th Aug) | 5ft (1.6m) 11s |
| Most Powerful | 4AM (Sat 29th Aug) | 5ft (1.6m) 11s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s have a look at what’s cookin’ for Narrabeen-Alley Rights (beach/sandbar) over the next coupla weeks. It’s a bit of a slow start, but there’s a window of hope if you’re patient.
Right off the bat, we’ve got a long stretch of not much. From now through to Thursday the 27th of August, it’s pretty grim – small, choppy, and onshore winds making a mess of things. The combined swell energy is barely registering (160 down to 40), so don’t bother paddling out unless you just want a wet float. Water temp is sittin’ around 63°, which is pretty much where you’d expect it for this time of year – no surprises there.
Now, Friday the 28th of August is where things finally turn. That morning’s got a clean 5ft swell from the SSE, with a period of 11 seconds – that’s proper groundswell energy, gonna have some push and shape. Winds are light cross-off from the WSW, so expect clean faces. The combined energy is a solid 605 – that’s moderate but with some grunt. For an advanced spot like this, that’s the standout session of the whole outlook. It’s gonna be a bit of a gem if you can sneak out. Saturday the 29th still has some leftover 5ft swell from the SSE (445 energy), but wind swings a little cross-shore, so it’s not quite as clean – still surfable though.
After that, it drops right off again. Sunday and Monday are tiny and junky, with energy down to 31 and 17. Then Tuesday the 1st of September throws up a little hope: morning brings 4ft from the SSE (340 energy) with clean offshore NW winds. That’s a solid window for a couple of hours, but by afternoon it’s back to short-period slop with NE wind. Wednesday and Thursday are flat again. Friday the 4th of September onwards is a write-off – tiny waves and onshore slop, with combined energy mostly below 50. Even a promising Monday the 7th of September bump from the SSE (317 energy, 4ft) gets ruined by fresh 19 mph winds – it’s gonna be messy and marginal.
Bottom line: this break is very consistent, but the surf quality is mostly poor. The standout is Friday morning the 28th of August. That’s the one to target. The rest of the run is either too small, too choppy, or blown out. If you’re a begginer, that 5ft might be a bit much, but for anyone else, that’s your wave.
Stay salty,
Rusty
Short Range ForecastHeavy rain (total 21mm), heaviest during Tue afternoon. Very mild (max 17°C on Wed morning, min 12°C on Thu night). Winds decreasing (fresh winds from the S on Wed morning, calm by Thu night). | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Fri night. Very mild (max 16°C on Sat morning, min 13°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Tue 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | ||||||||||||||
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 | NE 8 | NE 8 | S 6 | ENE 8 | NE 8 | ENE 8 | ENE 9 | SSE 11 | SSE 10 | SSE 9 | SSE 10 | SSE 11 | SSE 10 | SE 9 | ENE 9 | ENE 10 | ENE 9 | ENE 9 | ENE 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 160 | 173 | 140 | 181 | 84 | 62 | 40 | 68 | 561 | 501 | 336 | 417 | 214 | 183 | 86 | 31 | 36 | 17 | 16 | 16 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-on | cross-on | cross-on | cross-on | on | off | cross-off | cross-on | cross-on | cross | cross-on | glassy | cross-on | cross-on | cross-off | glassy | cross-on | cross-off |
High Tide | 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 | 9:24AM1.36m | 9:28PM1.45m | 10:01AM1.41m | 10:08PM1.36m | |||||||
Low Tide | 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 | 3:21PM0.25m | 3:46AM0.12m | 4:06PM0.26m | ||||||||
 |  |  | |  |  |  |  | | |  | | | |  | |  | | | | |
 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | 6:15 | — | — |
 | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:32 | — | — | 5:34 | — | — | 5:35 | — | — | 5:35 | — |
mm | 8 | 7 | 5 | 1 | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 17 | 16 | 15 | 15 | 14 | 14 | 16 | 15 | 15 | 16 | 15 | 14 | 15 | 15 | 14 | 16 | 16 | 15 |
Feels °C | 13 | 15 | 14 | 12 | 12 | 13 | 12 | 13 | 13 | 12 | 13 | 15 | 13 | 13 | 12 | 12 | 13 | 15 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | NE 7 | NE 8 | NE 8 | NE 8 | ENE 8 | S 9 | S 9 | S 9 | SSE 11 | SSE 10 | ENE 8 | SSE 10 | S 10 | SSE 10 | S 9 | S 9 | S 8 | S 10 | S 10 | S 11 |
| kJ | 160 | 173 | 140 | 151 | 84 | 562 | 390 | 252 | 561 | 501 | 24 | 417 | 262 | 183 | 192 | 404 | 142 | 340 | 319 | 326 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 9 | — | S 11 | S 15 | NE 8 | ENE 8 | ENE 9 | ENE 8 | ENE 8 | S 11 | S 9 | SSE 11 | S 9 | SE 9 | ENE 9 | S 17 | S 16 | ENE 9 | ENE 9 |
| kJ | 29 | 15 | — | 9 | 5 | 62 | 40 | 68 | 44 | 36 | 21 | 311 | 214 | 106 | 86 | 31 | 572 | 243 | 16 | 16 |
Swell 3 Height (m) Direction Period (s) | S 16 | S 16 | — | — | — | S 15 | S 14 | S 14 | S 14 | SSW 13 | — | ENE 8 | ENE 8 | ENE 9 | ENE 9 | S 18 | ENE 10 | ENE 9 | S 16 | ENE 12 |
| kJ | 20 | 47 | — | — | — | 17 | 36 | 57 | 36 | 53 | — | 28 | 28 | 31 | 30 | 26 | 36 | 17 | 47 | 14 |
Wind waves Height (m) Direction Period (s) | N 3 | NW 3 | SSW 4 | S 6 | S 7 | — | — | — | — | S 4 | SSE 9 | — | — | — | — | — | — | — | ENE 2 | NE 4 |
| kJ | 7 | 3 | 18 | 181 | 269 | — | — | — | — | 6 | 336 | — | — | — | — | — | — | — | 1 | 12 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 7 | 0 | 2 | 87 | 2 | 2 | 18 | 0 | 0 | 2 | 2 | 2 | 18 | 0 | 2 | 6 | 1 | 1 | 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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