
Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 11 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 10AM (local time) - 1.5ft (0.5m), 10s period, ENE swell with cross-offshore winds.
- Most powerful swell: Monday 17 Aug, 4AM (local time) - 6ft (1.9m), 7s period, ESE swell with 366 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 10AM (local time) - 1.5ft (0.5m), 10s 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 Wednesday (Aug 12) at 10AM. The primary swell is predicted to be 0.5m and 10s 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 1.9m 7s and forecast to arrive on Monday (Aug 17) 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 1.8m 8s period and expected on Thursday (Aug 13) at 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Wed 12th Aug) | 1.5ft (0.5m) 10s |
| Best Surf | 10AM (Wed 12th Aug) | 1.5ft (0.5m) 10s |
| Most Powerful | 4AM (Mon 17th Aug) | 6ft (1.9m) 7s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
G’day, Rusty here.
Alright mate, let’s look at what’s on offer for Narrabeen-Alley Rights. Right from the start, it’s a slow period. The first week or so is mostly small, weak swell and unsavoury wind, so you’ll want to wait for the good bits.
Starting Wednesday the 12th of August, it’s tiny. Swell is just 2ft from the ENE at 10 seconds, combined energy at 52. A light cross-off from the west keeps the surface clean, but there’s no power—barely surfable if you’re keen for a wobbly ride. Not recommended.
Thursday the 13th through Monday the 17th is pretty much a bust. Swell stays under 2ft until Sunday, then bumps up to 6ft on Sunday morning but with a horrible 6-second period from the SSE, combined energy at 251. Winds are cross-on or onshore, making for choppy, messy junk. Not worth paddling out.
Tuesday the 18th and Wednesday the 19th have 3ft–4ft swell, but still short-period (7 seconds) and mostly cross-onshore. The exception is Wednesday morning the 19th—dead calm, glassy conditions with a 4ft ESE swell at 7 seconds, combined energy 152. It’s clean but weak. A small-wave board will get you some fun little runners.
Thursday the 20th morning is also glassy, 4ft E swell at 7 seconds, combined energy 124. Quiet and clean.
The standout window starts to open late in the week. Friday the 21st morning has a 3ft ENE swell at 8 seconds, combined energy 135, with offshore wind from the NW at 6 mph. Clean, small, but workable.
The best of the whole 16-day run is Saturday the 22nd afternoon through Sunday the 23rd. Saturday afternoon sees 4ft ENE swell at 9 seconds, combined energy 224, with clean cross-off wind from the NNE at 6 mph. Sunday morning is the cream: 4ft ENE swell at 10 seconds, combined energy 290, cross-off wind from the west at 6 mph. That’s the one to circle—good size, better period, clean surface. Water temp is a bit colder than normal at 63°F, about 2°F below the long-term average, so you’ll want a thicker wetsuit.
After that, Monday the 24th turns sour with stronger S/SSW winds and poor conditions, and the rest of the month fades to small, weak swell again. There’s a size bump on the 27th—up to 6ft NE swell—but short period and only marginal conditions, so it’s more likely a messy, choppy affair.
Bottom line: lock in Sunday the 23rd morning for the cleanest, most promising surf. Saturday the 22nd afternoon is a solid backup. Everything else is either too small, too windy, or both.
Stay patient and pick your time.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Fri night. Very mild (max 19°C on Wed afternoon, min 11°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 21mm), heaviest during Sat morning. Very mild (max 16°C on Sat afternoon, min 13°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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 10 | ENE 10 | ENE 9 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | ENE 9 | SSE 7 | ENE 9 | ENE 10 | ENE 10 | SSE 6 | SE 6 | SE 7 | E 7 | E 7 | E 7 | E 7 | E 7 | SE 7 |
Wave Graph | |||||||||||||||||||||
52 | 52 | 49 | 54 | 35 | 29 | 31 | 29 | 136 | 29 | 18 | 18 | 232 | 153 | 271 | 134 | 218 | 266 | 157 | 74 | 65 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | on | cross-off | cross-off | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 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 | 11:22AM1.36m | 11:27PM1.21m | 12:05PM1.34m | 00:14AM1.06m | ||||||||
Low Tide | 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 | 5:01AM0.19m | 5:31PM0.36m | 5:36AM0.29m | 6:27PM0.43m | ||||||||
6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | |
— | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:23 | — | — | 5:24 | — | — | 5:25 | — | — | 5:25 | — | |
mm | — | — | — | — | — | — | — | — | 5 | 5 | — | 5 | — | 2 | 3 | 1 | 2 | 3 | — | 1 | 4 |
Temp °C | 18 | 19 | 14 | 17 | 16 | 14 | 16 | 15 | 16 | 15 | 16 | 15 | 16 | 16 | 16 | 16 | 15 | 16 | 16 | 16 | 16 |
Feels °C | 15 | 15 | 9 | 14 | 11 | 10 | 13 | 11 | 14 | 10 | 11 | 10 | 11 | 11 | 11 | 11 | 10 | 12 | 13 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 9 | S 8 | ENE 10 | S 8 | S 8 | S 9 | S 8 | SSE 7 | ENE 9 | ENE 10 | S 7 | S 16 | S 8 | S 11 | SE 7 | S 9 | S 8 | E 7 | E 7 | SE 7 |
273 | 157 | 108 | 54 | 320 | 202 | 192 | 196 | 136 | 29 | 18 | 157 | 80 | 42 | 82 | 130 | 57 | 35 | 157 | 74 | 65 | |
Swell 2 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 9 | S 16 | ENE 9 | ENE 9 | ENE 10 | ENE 9 | ENE 9 | S 19 | S 18 | ENE 10 | ENE 10 | S 12 | ENE 10 | S 10 | S 14 | SSW 12 | S 9 | SE 7 | ENE 6 |
52 | 52 | 49 | 5 | 35 | 29 | 31 | 29 | 29 | 29 | 59 | 18 | 19 | 45 | 20 | 89 | 16 | 26 | 40 | 52 | 41 | |
Swell 3 Height (m) Direction Period (s) | S 15 | S 15 | S 13 | S 12 | S 19 | S 15 | S 18 | S 15 | S 16 | SE 8 | — | S 17 | S 13 | ENE 10 | S 17 | S 16 | SSW 12 | — | ENE 8 | S 9 | S 9 |
4 | 4 | 3 | 3 | 7 | 17 | 27 | 18 | 19 | 3 | — | 49 | 3 | 20 | 22 | 20 | 14 | — | 14 | 25 | 27 | |
Wind waves Height (m) Direction Period (s) | WNW 3 | NW 3 | W 4 | S 7 | — | W 3 | — | — | — | S 8 | S 8 | — | SSE 6 | SE 6 | SE 7 | E 7 | E 7 | E 7 | — | — | — |
4 | 2 | 9 | 134 | — | 2 | — | — | — | 295 | 323 | — | 232 | 153 | 271 | 134 | 218 | 266 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 1 | 2 | 18 | 1 | 1 | 18 | 2 | 54 | 54 | 2 | 195 | 2 | 185 | 234 | 377 | 173 | 81 | 54 | 19 |
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.











