Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 15 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 4AM (local time) - 2.5ft (0.8m), 11s period, ESE swell with glassy winds.
- Most powerful swell: Wednesday 19 Aug, 10PM (local time) - 4ft (1.2m), 9s period, E swell with 235 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 4AM (local time) - 2.5ft (0.8m), 11s 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 0.8m and 11s period with a secondary swell of 1.2m and 7s. 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 1.2m 9s and forecast to arrive on Wednesday (Aug 19) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 7s period and expected on Saturday (Aug 22) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Wed 19th Aug) | 2.5ft (0.8m) 11s |
| Best Surf | 4AM (Wed 19th Aug) | 2.5ft (0.8m) 11s |
| Most Powerful | 10PM (Wed 19th Aug) | 4ft (1.2m) 9s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
G'day, I'm Rusty, and I've got the surf outlook for the Narrabeen-Alley Rights (Narrabeen-Alley Rights) stretch. We're looking at a pretty quiet run for a while, so let's get into it.
The next week and a half is mostly a write-off, with only a few fleeting moments that might get your hopes up. The real standout is a long way off, on the 30th of August, but it's a beast that will only be for the brave.
Alright, starting off: Saturday the 15th is a no-go – tiny 1 ft swell from the ENE with a weak energy of 17, and a bit of rain and cross-shore wind. Sunday the 16th through to Tuesday the 18th doesn't look much better, with poor surf conditions and onshore or cross-onshore winds keeping things messy. The swell is small, around 3 ft, but the period is short and the energy is low to moderate at best.
There's a glimmer on Wednesday the 19th morning. The forecast shows clear skies, a glassy offshore wind from the NW at 3 mph, and a 2 ft swell from the ESE with a decent 10-second period. The combined energy is 211, which is moderate. The water is sitting at 62°F, which is a bit colder than normal for this time of year. It's not epic, but it's the cleanest we'll see for a while. The afternoon gets a bit lumpy with a cross-shore wind.
From Thursday the 20th right through to the 29th, it's a long stretch of poor to ordinary surf. The swell stays small, mostly under 3 ft, and the wind is all over the shop – cross, onshore, and at times strong. There are a few mornings with clean conditions and offshore winds, like on the 21st (Friday) and the 23rd (Sunday), but the swell is just too small to get excited about. The energy is weak, often below 100.
Now, the one that stands out is Sunday the 30th of August. The forecast is for a solid 10 ft swell from the SSE, with a long 11-second period. That's a huge amount of energy, with readings of 2390 in the morning and 1762 in the afternoon. However, the wind is onshore from the SE at 9 mph, and the comments say it's predicted to be too big for this break. This is expert-only territory, and even then, the onshore wind will make it a messy, powerful beast. It's a long-range call, so it's promising but not certain.
To sum it up: the best clean surf on offer is the Wednesday the 19th morning session, with small, glassy waves. The only real standout, in terms of size, is the 30th of August, but that's a big, onshore swell only for the experts. The rest of the forecast is a blank run of small, poor conditions.
Rusty, signing off.
Short Range ForecastHeavy rain (total 25mm), heaviest during Mon night. Very mild (max 16°C on Sat morning, min 13°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Tue night. Very mild (max 19°C on Thu morning, min 13°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | |||||||||||||||
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 9 | ENE 10 | ENE 10 | ESE 6 | ESE 6 | SE 6 | ESE 7 | ESE 7 | ESE 7 | ESE 6 | ESE 7 | ESE 7 | ESE 7 | ESE 10 | ESE 9 | ESE 7 | ESE 6 | ENE 6 | ENE 6 | E 6 | ENE 6 |
Wave Graph | |||||||||||||||||||||
17 | 18 | 19 | 90 | 71 | 88 | 93 | 93 | 78 | 80 | 71 | 105 | 131 | 218 | 197 | 79 | 70 | 66 | 51 | 27 | 13 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross | cross-off | cross | off | cross-off | cross | glassy | off | off | off |
High Tide | 10:02PM1.53m | 10:40AM1.36m | 10:44PM1.37m | 11:22AM1.36m | 11:27PM1.21m | 12:05PM1.34m | 00:14AM1.06m | 12:54PM1.30m | 1:09AM0.94m | 1:50PM1.27m | 2:20AM0.87m | 2:55PM1.26m | 3:43AM0.85m | ||||||||
Low Tide | 3:50PM0.23m | 4:27AM0.10m | 4:40PM0.28m | 5:01AM0.19m | 5:31PM0.36m | 5:36AM0.29m | 6:27PM0.43m | 6:12AM0.39m | 7:32PM0.49m | 6:55AM0.47m | 8:48PM0.52m | 7:50AM0.53m | 10:06PM0.50m | ||||||||
6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:26 | — | — | |
— | 5:23 | — | — | 5:24 | — | — | 5:25 | — | — | 5:25 | — | — | 5:27 | — | — | 5:28 | — | — | 5:28 | — | |
mm | 2 | 1 | 3 | 1 | — | 2 | 4 | 3 | 9 | — | — | 2 | — | — | — | — | — | — | 2 | 1 | — |
Temp °C | 16 | 16 | 15 | 15 | 15 | 15 | 14 | 15 | 15 | 16 | 16 | 16 | 14 | 15 | 15 | 19 | 18 | 18 | 14 | 15 | 14 |
Feels °C | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 13 | 13 | 13 | 14 | 14 | 13 | 13 | 14 | 16 | 14 | 17 | 11 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 19 | S 17 | S 6 | S 7 | S 11 | S 10 | S 9 | ESE 7 | ESE 6 | ESE 7 | ESE 7 | ESE 7 | ESE 10 | ESE 9 | ESE 7 | ESE 6 | ENE 6 | ENE 6 | E 6 | ENE 6 |
230 | 61 | 95 | 83 | 131 | 182 | 116 | 76 | 78 | 80 | 68 | 105 | 131 | 218 | 197 | 79 | 70 | 66 | 51 | 27 | 13 | |
Swell 2 Height (m) Direction Period (s) | ENE 9 | ENE 10 | ENE 10 | S 17 | S 18 | ENE 10 | ENE 10 | ENE 9 | S 8 | S 11 | S 11 | ESE 12 | ESE 10 | S 7 | — | — | — | E 10 | S 12 | S 11 | N 4 |
17 | 18 | 19 | 148 | 55 | 10 | 10 | 17 | 35 | 82 | 56 | 104 | 110 | 26 | — | — | — | 2 | 3 | 2 | 3 | |
Swell 3 Height (m) Direction Period (s) | S 19 | E 7 | SE 7 | ENE 10 | ENE 10 | S 18 | ENE 10 | SSW 13 | S 12 | E 9 | ESE 14 | S 10 | — | — | — | — | — | S 12 | E 10 | E 10 | NE 8 |
66 | 1 | 2 | 20 | 20 | 24 | 10 | 53 | 24 | 7 | 71 | 46 | — | — | — | — | — | 3 | 2 | 2 | 3 | |
Wind waves Height (m) Direction Period (s) | — | S 8 | S 7 | ESE 6 | ESE 6 | SE 6 | ESE 7 | ESE 7 | — | — | — | — | — | — | — | — | NE 3 | NNW 3 | NW 3 | N 4 | WNW 3 |
— | 310 | 150 | 90 | 71 | 88 | 93 | 93 | — | — | — | — | — | — | — | — | 2 | 1 | 2 | 14 | 4 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 2 | 1 | 2 | 123 | 2 | 41 | 2 | 19 | 19 | 54 | 7 | 0 | 7 | 0 | 0 | 74 | 0 | 0 | 57 | 186 |
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.











