
Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 10 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 10AM (local time) - 2.5ft (0.7m), 9s period, ENE swell with cross-offshore winds.
- Most powerful swell: Monday 17 Aug, 1AM (local time) - 8ft (2.5m), 8s period, SE swell with 819 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 10AM (local time) - 2.5ft (0.7m), 9s 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 (Aug 11) at 10AM. The primary swell is predicted to be 0.7m and 9s 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 2.5m 8s and forecast to arrive on Monday (Aug 17) at 1AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 9s period and expected on Thursday (Aug 13) at 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Tue 11th Aug) | 2.5ft (0.7m) 9s |
| Best Surf | 10AM (Tue 11th Aug) | 2.5ft (0.7m) 9s |
| Most Powerful | 1AM (Mon 17th Aug) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
G’day, it’s Rusty here. Let’s have a look at what’s on offer at Narrabeen-Alley Rights.
We’re in for a strange stretch. Right now, there’s nothing doing – the first recommendation doesn’t pop up until Tuesday morning the 11th of August, and even then it’s pretty ordinary. A small 2ft ENE swell with a period of 9 seconds is rolling in, with a gentle cross-offshore wind that’ll keep things clean. But the wave energy is weak (78), and for an advanced break like this, those ankle-to-knee high waves won’t give you much to work with. Water temp is about average for this time of year. Tuesday afternoon’s a little better on the energy front (96) with an offshore wind, but still small. Wednesday and Thursday drop right off – swells shrink to 1-2ft, and the winds turn messy on Thursday with onshore slop. That run of small, poor surf lasts right through to the end of the week.
The weekend of the 15th and 16th sees some size pop up, but don’t get excited – a short-period 4ft SSE windswell hits Sunday morning with onshore winds, and by the afternoon it’s 5ft and choppy. Wave energy jumps to 207, but it’s poor quality. The following Monday through Wednesday gets bigger again – 7ft to 7ft from the SE with short 8-second periods – but it’s all onshore wind and rain. The energy readings climb into the 400’s and 500’s, which is moderate wave energy, but it’s raw, lumpy and unsurfable for a standard paddle. With that much onshore wind and a beach setup, this looks more interesting for kite surfing than paddle surfing through that whole stretch.
Then we get a gap of very ordinary conditions until Friday the 21st of August. Friday morning is the first real standout. The swell drops to 3ft from the ENE with an 8-second period and a glassy wind – the word is “glass” – and the water goes flat calm (129 energy). That’s clean small waves for a cruisy session if you’re on the right board. The afternoon goes choppy again.
Saturday the 22nd and Sunday the 23rd offer 4ft ENE swell with gentle cross-shore winds, but the quality is marginal – the wave energy is moderate (258-264) but the cross-shore breeze makes it lumpy. Monday the 24th cleans up with a cross-offshore WNW wind and 3ft swell, but again it’s small and ordinary.
The final standout comes on Wednesday the 26th of August. This one’s a genuine highlight – a solid 8ft SE swell with a cross-offshore NNW breeze, clean conditions, and a wave energy reading of 1330, which is strong. That’s proper groundswell size for experienced surfers at an advanced break. The period is short at 8 seconds, so it’ll be a bit dumpy and fast, but with that size and clean wind, it’s the best wave on offer in the whole outlook. Keep in mind we’re looking more than a week out, so it’s promising but not locked in.
Overall, there aren’t many good windows here. The first half of the outlook is flat or blown out, the middle week is too messy for a paddle, and only a handful of mornings in the second week are worth a look. For this region, that blank run is pretty normal in winter – we cop a lot of windswell with onshore winds. Don’t lose hope though, forecasts can change.
Rusty
Short Range ForecastMostly dry. Warm (max 20°C on Tue afternoon, min 11°C on Tue night). Winds decreasing (fresh winds from the WNW on Mon night, light winds from the W by Tue morning). | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Sat night. Very mild (max 16°C on Fri morning, min 10°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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 10 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | SE 5 | SSE 6 | SSE 7 | SE 8 |
Wave Graph | |||||||||||||||||||
161 | 78 | 76 | 47 | 52 | 52 | 51 | 54 | 35 | 29 | 31 | 30 | 29 | 17 | 18 | 22 | 147 | 187 | 819 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross | on | cross-off | cross-off | on | cross-on | cross-on | cross-on | cross-on | on | on | on |
High Tide | 7:00AM1.12m | 7:01PM1.76m | 7:49AM1.19m | 7:50PM1.78m | 8:34AM1.25m | 8:36PM1.75m | 9:17AM1.31m | 9:20PM1.66m | 9:59AM1.34m | 10:02PM1.53m | 10:40AM1.36m | 10:44PM1.37m | |||||||
Low Tide | 1:02AM0.06m | 12:29PM0.27m | 1:50AM-0.01m | 1:22PM0.22m | 2:33AM-0.04m | 2:13PM0.19m | 3:13AM-0.02m | 3:02PM0.19m | 3:51AM0.02m | 3:50PM0.23m | 4:27AM0.10m | 4:40PM0.28m | |||||||
— | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | |
— | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:23 | — | — | 5:24 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | 4 | — | 3 | 2 |
Temp °C | 15 | 19 | 20 | 13 | 16 | 18 | 13 | 16 | 15 | 14 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
Feels °C | 10 | 16 | 16 | 7 | 12 | 14 | 8 | 12 | 11 | 11 | 13 | 12 | 12 | 10 | 9 | 10 | 10 | 9 | 10 |
Swell 1 Height (m) Direction Period (s) | ENE 10 | ENE 9 | S 11 | S 11 | S 10 | S 9 | S 8 | S 8 | S 9 | S 8 | S 9 | S 8 | S 8 | ENE 9 | ENE 10 | S 7 | SSW 11 | S 11 | ENE 10 |
161 | 78 | 716 | 617 | 257 | 160 | 144 | 169 | 430 | 235 | 175 | 149 | 181 | 17 | 18 | 168 | 43 | 39 | 20 | |
Swell 2 Height (m) Direction Period (s) | E 13 | S 12 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 9 | S 16 | S 14 | SE 5 | ENE 10 | ENE 10 | SSW 14 |
3 | 3 | 76 | 47 | 52 | 52 | 51 | 54 | 35 | 29 | 31 | 30 | 29 | 19 | 33 | 22 | 20 | 20 | 36 | |
Swell 3 Height (m) Direction Period (s) | S 12 | — | NE 9 | — | NE 8 | S 14 | S 13 | S 16 | — | S 14 | SE 11 | S 19 | S 16 | S 14 | S 14 | ENE 10 | S 17 | S 15 | SSW 13 |
3 | — | 20 | — | 2 | 4 | 3 | 5 | — | 16 | 5 | 30 | 19 | 4 | 4 | 18 | 50 | 40 | 35 | |
Wind waves Height (m) Direction Period (s) | W 4 | SW 7 | — | W 4 | NW 3 | WNW 3 | W 4 | S 8 | — | — | — | — | — | S 7 | S 7 | — | SSE 6 | SSE 7 | SE 8 |
35 | 127 | — | 9 | 5 | 1 | 6 | 233 | — | — | — | — | — | 286 | 355 | — | 147 | 187 | 819 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 249 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 2 | 4 | 1 | 2 | 2 | 54 | 162 | 2 | 54 | 195 | 323 |
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.











