Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 25 Aug 2026:
- Best quality surf: Friday 28 Aug, 4AM (local time) - 5ft (1.5m), 12s period, SSE swell with offshore winds.
- Most powerful swell: Friday 28 Aug, 7AM (local time) - 5.5ft (1.7m), 11s period, SSE swell with 737 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 4AM (local time) - 4ft (1.2m), 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 Wednesday (Aug 26) at 4AM. The primary swell is predicted to be 1.2m and 8s 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 11s and forecast to arrive on Friday (Aug 28) at 7AM. Winds are predicted to be cross-offshore 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+) | 4AM (Wed 26th Aug) | 4ft (1.2m) 8s |
| Best Surf | 4AM (Fri 28th Aug) | 5ft (1.5m) 12s |
| Most Powerful | 7AM (Fri 28th Aug) | 5.5ft (1.7m) 11s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
Alright folks, it’s Rusty here. Let’s have a look at what’s cooking for Narrabeen-Alley Rights over the next couple of weeks.
The first few days are a bit of a write-off, if I’m being honest. The ocean is a messy, choppy, and cross-onshore mess on Wednesday the 26th and Thursday the 27th, with a weak, short-period swell at about 4ft at best. The combined energy is low, only 151 (133 in the arvo). Not worth paddling out for.
But hold onto your boardies, because things flip on Friday the 28th. The morning session is your standout. We’ve got a clean 5ft groundswell from the SSE, with a period of 11 seconds, and it's glassy. The combined energy jumps to 667 (moderate), and the wind is a perfect offshore from the west – glassy. This is the morning to be out there. The afternoon gets a bit bumpy with a cross-onshore, so make the most of the early session.
Saturday the 29th is a step down. The swell drops to 5ft, still from the SSE, with a period of 10 seconds, giving us a combined energy of 391. The wind is light cross-onshore, so it’s a bit lumpy and marginal. Still fun for the advanced crew, but not the standout.
Sunday the 30th is small and clean in the morning with a 2ft SE swell from a light offshore (WSW). The energy is weak at 124, so it’s a grovel board kind of day. The arvo is a total dud.
From Monday the 31st right through to the end of the forecast on the 10th of September, it’s a flat, weak, and mostly unrideable run. The swell barely pushes 1ft to 2ft most days, with energy values in the teens and twenties. There are a few clean offshore mornings, like the 1st and 2nd of September, but with no height, it’s not worth the paddle. The only faint pulse is on the afternoon of the 5th of September, with a 5ft, short-period S swell, but it’s choppy and cross-onshore. Not one for the log book.
So, the real highlight is the Friday morning, the 28th of August. Glassy, solid, and clean. The rest of the window is a big gap of flat or poor conditions, especially from the 31st of August onwards. It’s one of those stretches where you’ve got to be ready to pull the trigger when it’s on.
Rusty.
Short Range ForecastModerate rain (total 15mm), heaviest on Tue night. Very mild (max 17°C on Wed morning, min 11°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 4mm), mostly falling on Fri night. Very mild (max 16°C on Fri night, min 12°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | ||||||||||||||
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 8 | NE 8 | ENE 8 | ENE 8 | NE 8 | ENE 8 | ENE 9 | SSE 11 | SSE 10 | SSE 9 | SSE 10 | SSE 10 | SSE 10 | SE 10 | ENE 9 | ENE 10 | ENE 9 | ENE 9 | ENE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 191 | 140 | 133 | 82 | 62 | 40 | 67 | 622 | 424 | 280 | 363 | 229 | 171 | 94 | 30 | 36 | 28 | 28 | 16 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-on | cross-on | cross-on | cross-on | on | off | glassy | cross-on | cross-on | cross-on | on | cross-off | cross-off | on | cross | glassy | cross | cross-off |
High Tide | 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 | — | — |
 | — | — | 5:31 | — | — | 5:31 | — | — | 5:32 | — | — | 5:34 | — | — | 5:35 | — | — | 5:35 | — |
mm | 7 | 7 | 1 | — | — | — | — | — | — | 2 | 2 | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 16 | 15 | 15 | 14 | 14 | 16 | 15 | 16 | 15 | 15 | 14 | 15 | 15 | 14 | 16 | 16 | 15 |
Feels °C | 15 | 13 | 12 | 12 | 12 | 12 | 13 | 13 | 12 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | NE 8 | NE 8 | ENE 8 | ENE 8 | S 9 | S 9 | S 9 | SSE 11 | SSE 10 | SSE 9 | SSE 10 | S 8 | S 9 | S 9 | S 9 | S 18 | S 17 | S 12 | S 13 |
| kJ | 191 | 140 | 133 | 82 | 562 | 461 | 292 | 622 | 424 | 280 | 363 | 245 | 126 | 152 | 304 | 766 | 716 | 333 | 451 |
Swell 2 Height (m) Direction Period (s) | S 9 | SSW 15 | S 11 | S 15 | NE 8 | ENE 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | S 8 | SSE 10 | SSE 10 | SE 10 | ENE 9 | S 8 | S 10 | S 15 | ENE 9 |
| kJ | 15 | 79 | 9 | 5 | 62 | 40 | 52 | 45 | 36 | 24 | 239 | 229 | 171 | 94 | 30 | 149 | 148 | 165 | 16 |
Swell 3 Height (m) Direction Period (s) | S 16 | — | — | — | S 15 | S 14 | SSE 13 | SSW 13 | S 13 | S 11 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | S 18 | ENE 10 | ENE 9 | ENE 9 | ENE 12 |
| kJ | 47 | — | — | — | 17 | 37 | 67 | 53 | 51 | 21 | 28 | 30 | 31 | 30 | 57 | 36 | 28 | 28 | 14 |
Wind waves Height (m) Direction Period (s) | NW 3 | SSW 3 | S 6 | S 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 3 |
| kJ | 6 | 11 | 187 | 277 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 2 | 87 | 2 | 2 | 18 | 0 | 0 | 115 | 2 | 2 | 26 | 0 | 0 | 54 | 1 | 1 | 18 | 1 |
Best forecast wave conditions in Sydney North Coast | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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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