Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 27 Aug 2026:
- Best quality surf: Friday 28 Aug, 4AM (local time) - 5.5ft (1.7m), 12s period, SSE swell with offshore winds.
- Most powerful swell: Friday 28 Aug, 4AM (local time) - 5.5ft (1.7m), 12s period, SSE swell with 791 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 1AM (local time) - 2.5ft (0.7m), 13s 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 Friday (Aug 28) at 1AM. The primary swell is predicted to be 0.7m and 13s 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 1.7m 12s and forecast to arrive on Friday (Aug 28) at 4AM. 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 9s period and expected on Thursday (Aug 27) at 7PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Fri 28th Aug) | 2.5ft (0.7m) 13s |
| Best Surf | 4AM (Fri 28th Aug) | 5.5ft (1.7m) 12s |
| Most Powerful | 4AM (Fri 28th Aug) | 5.5ft (1.7m) 12s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
Alright, grab a coffee and listen up. This is a bit of a mixed bag for the next couple of weeks at Narrabeen-Alley Rights. The first few days are a write-off, but we’ve got one solid window that’s worth circling on the calendar.
We start off flat and ugly. Thursday the 27th is a complete no-go with small, weak 2ft swell from the ENE and a messy cross-onshore breeze. The wave energy is pathetic at just 54. You’d be better off doing anything else.
Then we hit the good stuff. Friday morning the 28th is the standout. The wind goes glassy out of the WSW, the swell jumps to 6ft from the SSE, and combined energy is a solid 669. That’s proper groundswell with an 11-second period, and it’s lining up for the advanced crew. It’s a clean, powerful morning with the offshore wind, but it’s a short window – by Friday afternoon the wind swings onshore and it’s back to poor.
Saturday and Sunday fade quickly. Saturday morning has some 4ft from the SSE, but the wind is cross-shore and the quality is marginal. By Sunday morning we’re down to 2ft and clean but ordinary. The energy is already dropping to 122.
Then there’s a massive gap. From Monday the 31st all the way through to the start of September, the surf is tiny. We’re talking 1ft or less, mostly from the ENE, onshore winds, and the energy reading barely cracks 70. The second week looks bleak – a few clean offshore mornings in early September, but the swell never comes to life. The only real change is on Saturday the 5th of September afternoon, when a 3ft wave from the NE pops up, but it’s a short-period 5-second windswell, and it’s still ordinary. After that, it’s back to flat.
Nothing in the second half of the outlook suggests any real hope. The wind is offshore or clean, but the swell just isn’t there. Combined energy readings are often in the low teens or single digits. It’s a long stretch of nothing.
The water temperature at Narrabeen-Alley Rights is hovering around 64°F, which is about normal for this time of year.
So, bottom line: if you’re an advanced surfer, Friday morning the 28th of August is your only shot. Get out there early, because the rest of the window is a flat spell with a few tiny, forgettable bumps. Even the bigger swells later on are just windswell with no punch. It’s gonna be a waiting game.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Fri morning, min 11°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Tue afternoon, min 13°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
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) | ENE 8 | ENE 8 | SSE 13 | SSE 11 | SSE 10 | SSE 9 | SSE 10 | SE 10 | SSE 10 | SE 10 | ENE 9 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 11 | ENE 11 | NE 6 | ENE 10 | ENE 10 | ENE 10 |
Wave Graph | |||||||||||||||||||||
54 | 40 | 147 | 643 | 433 | 280 | 261 | 225 | 157 | 96 | 25 | 18 | 17 | 16 | 15 | 39 | 38 | 34 | 33 | 32 | 33 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | off | glassy | on | cross-on | cross | cross-on | glassy | cross-off | on | glassy | glassy | cross | cross-off | cross-off | off | off | off | cross-off | off |
High Tide | 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 | 10:42AM1.43m | 10:53PM1.25m | 11:27AM1.43m | 11:46PM1.13m | ||||||||
Low Tide | 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 | 4:20AM0.17m | 4:56PM0.28m | 4:58AM0.24m | 5:53PM0.32m | ||||||||
6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:11 | — | — | |
— | 5:31 | — | — | 5:32 | — | — | 5:34 | — | — | 5:35 | — | — | 5:35 | — | — | 5:36 | — | — | 5:37 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 14 | 16 | 15 | 15 | 16 | 15 | 14 | 17 | 15 | 15 | 17 | 16 | 15 | 24 | 26 | 19 | 27 | 27 | 21 |
Feels °C | 10 | 13 | 13 | 13 | 12 | 14 | 14 | 13 | 14 | 14 | 12 | 14 | 14 | 13 | 13 | 19 | 21 | 15 | 21 | 22 | 19 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | S 9 | SSE 11 | SSE 10 | SSE 9 | SSE 10 | S 9 | S 9 | S 9 | S 9 | S 9 | S 8 | S 10 | S 9 | S 12 | S 11 | S 11 | S 11 | S 11 | ENE 10 |
707 | 421 | 258 | 643 | 433 | 280 | 261 | 219 | 146 | 157 | 225 | 341 | 160 | 225 | 140 | 268 | 196 | 108 | 79 | 55 | 33 | |
Swell 2 Height (m) Direction Period (s) | ENE 8 | ENE 8 | SSE 13 | ENE 8 | ENE 8 | ENE 8 | S 9 | SE 10 | SSE 10 | SE 10 | ENE 9 | S 16 | S 16 | S 16 | S 16 | ENE 11 | ENE 11 | NE 6 | NE 5 | NE 5 | S 10 |
54 | 40 | 147 | 26 | 26 | 25 | 188 | 225 | 157 | 96 | 25 | 84 | 258 | 246 | 76 | 39 | 38 | 32 | 18 | 11 | 31 | |
Swell 3 Height (m) Direction Period (s) | S 15 | S 14 | ENE 9 | S 14 | S 13 | S 11 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | SE 9 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | N 12 | N 12 | ENE 10 | ENE 10 | ENE 10 | NE 5 |
17 | 36 | 50 | 58 | 54 | 37 | 30 | 29 | 32 | 26 | 21 | 18 | 17 | 16 | 15 | 3 | 3 | 34 | 33 | 32 | 7 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | S 3 | — | — | — | — | — | — | — | — | NE 2 | NE 3 | NE 4 | NE 4 | NW 3 | NW 3 | — | NW 2 |
— | — | — | — | 1 | — | — | — | — | — | — | — | — | 1 | 6 | 4 | 29 | 2 | 2 | — | 1 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 2 | 0 | 0 | 123 | 2 | 1 | 18 | 0 | 0 | 2 | 1 | 1 | 18 | 1 | 1 | 0 | 0 | 0 | 1 | 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.











