Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 12 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 10PM (local time) - 5ft (1.6m), 7s period, E swell with glassy winds.
- Most powerful swell: Wednesday 19 Aug, 10PM (local time) - 5ft (1.6m), 7s period, E swell with 239 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 4AM (local time) - 4ft (1.2m), 6s period with ESE 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 19) at 4AM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 0.4m and 11s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Narrabeen-Alley Rights in the next 16 days are 1.6m 7s and forecast to arrive on Wednesday (Aug 19) at 10PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 8s period and expected on Saturday (Aug 15) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Wed 19th Aug) | 4ft (1.2m) 6s |
| Best Surf | 10PM (Wed 19th Aug) | 5ft (1.6m) 7s |
| Most Powerful | 10PM (Wed 19th Aug) | 5ft (1.6m) 7s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
Alright, surfers, Rusty here. It's gonna be a bit of a wait for anything decent around here. The next week and a half are looking pretty grim for Narrabeen-Alley Rights. This is a very consistent beach/sandbar setup that's exposed to the swell, so it's not often this quiet. We're looking at a long stretch of nothing, really, from the start of the period right through to the 21st of August. There's a lot of small, weak swell and poor wind conditions, so don't even bother paddling out for a while.
The combined swell energy is weak, mostly under 100 (52), for the first week, so there's just no push. The water temperature is a bit colder than normal, sitting at 62°F, about a degree and a half off the usual for this time of year.
The first real hint of something happening is on the morning of Friday the 21st of August. We'll see a clean, cross-off wind from the N with a small ENE swell around 4ft. The combined energy is still moderate (183), but it's surfable, just very ordinary. The afternoon of the 21st will see a jump in swell size to 6ft from the ENE, but the wind gets messy and the combined energy jumps (686). It's still marginal.
The standout window is Saturday the 22nd of August. This is the best bet on offer. Both the morning and afternoon are looking good with a clean 4ft ENE swell. The wind is offshore from the NW for the afternoon, which is a major positive for this spot. The combined energy is solid at 288. The waves will have some shape, but with a 9-second period, it's a short period wind swell, so don't expect too much of a wait between sets. This is the one to target if you can get out.
After that, it's back to poor conditions for the rest of the forecast. The 23rd has clean swell but winds are too strong at 18-22 mph, and the 24th and 25th are back to small and choppy. The 26th and 27th see tiny, glassy conditions but with no real swell to speak of. It's a tough run, but the 22nd is the clear highlight.
Rusty.
Short Range ForecastLight rain (total 8mm), 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 5-7 Weather SummaryModerate rain (total 14mm), heaviest on Sat night. Very mild (max 16°C on Mon morning, min 14°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||
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 9 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | SSE 6 | SSE 6 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | E 6 | ESE 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 52 | 49 | 54 | 49 | 29 | 31 | 30 | 29 | 29 | 18 | 18 | 220 | 229 | 175 | 192 | 197 | 161 | 137 | 54 | 131 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | on | cross-off | cross-off | on | glassy | cross-on | cross-on | on | on | on | cross-on | cross-on | on | cross-on | on | on | cross-on |
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 | 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 | ||||||||
 |  |  | | | | |  |  | |  |  | | | | | | | | | |
 | — | — | 6:35 | — | — | 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 | — | — | — | — | — | — | — | 4 | 4 | — | 4 | 1 | 1 | 2 | — | 2 | 3 | 1 | 1 | 6 |
Temp °C | 19 | 14 | 17 | 15 | 15 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 15 | 15 | 15 |
Feels °C | 14 | 9 | 13 | 11 | 13 | 13 | 11 | 14 | 11 | 10 | 10 | 11 | 11 | 11 | 12 | 11 | 12 | 11 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 8 | S 7 | S 9 | S 8 | S 9 | S 8 | S 8 | ENE 9 | S 18 | S 7 | S 16 | S 12 | S 11 | S 10 | S 9 | S 9 | ESE 7 | E 6 | ESE 7 |
| kJ | 157 | 108 | 131 | 390 | 217 | 224 | 146 | 138 | 29 | 58 | 198 | 79 | 24 | 146 | 92 | 81 | 36 | 137 | 54 | 131 |
Swell 2 Height (m) Direction Period (s) | ENE 10 | ENE 9 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 9 | S 19 | ENE 10 | S 17 | ENE 10 | ENE 10 | ENE 10 | S 16 | S 11 | S 12 | S 11 | SE 6 | S 10 |
| kJ | 52 | 49 | 54 | 49 | 29 | 31 | 30 | 29 | 30 | 18 | 91 | 19 | 20 | 10 | 20 | 62 | 25 | 58 | 51 | 30 |
Swell 3 Height (m) Direction Period (s) | S 15 | S 13 | S 16 | S 19 | S 16 | S 18 | S 15 | S 15 | SE 8 | — | ENE 10 | S 12 | S 15 | S 17 | S 15 | — | S 12 | ENE 9 | S 11 | ESE 11 |
| kJ | 4 | 3 | 5 | 7 | 5 | 26 | 39 | 17 | 3 | — | 18 | 11 | 17 | 22 | 41 | — | 24 | 16 | 56 | 41 |
Wind waves Height (m) Direction Period (s) | NW 3 | W 4 | SSW 6 | — | WSW 3 | — | — | S 9 | S 8 | S 8 | — | SSE 6 | SSE 6 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | — | — | — |
| kJ | 2 | 9 | 139 | — | 6 | — | — | 252 | 277 | 435 | — | 220 | 229 | 175 | 192 | 197 | 161 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 4 | 4 | 2 | 18 | 1 | 1 | 54 | 1 | 2 | 2 | 2 | 123 | 123 | 185 | 123 | 514 | 232 | 123 | 123 | 13 |
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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