Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 23 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 1AM (local time) - 5ft (1.6m), 6s period, NE swell with cross-offshore winds.
- Most powerful swell: Tuesday 25 Aug, 4PM (local time) - 5ft (1.5m), 7s period, NE swell with 229 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 1AM (local time) - 3ft (0.9m), 4s 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 Monday (Aug 24) at 1AM. The primary swell is predicted to be 0.9m and 4s period with a secondary swell of 0.4m and 8s. 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 1.5m 7s and forecast to arrive on Tuesday (Aug 25) at 4PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 8s period and expected on Thursday (Aug 27) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Mon 24th Aug) | 3ft (0.9m) 4s |
| Best Surf | 1AM (Tue 25th Aug) | 5ft (1.6m) 6s |
| Most Powerful | 4PM (Tue 25th Aug) | 5ft (1.5m) 7s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s break down the next couple of weeks.
We’re looking at a slow start. The first few days are small and messy, so don’t bother charging out just yet. Things pick up a little around Tuesday morning, August 25th, when a bit of energy shows up.
The best session is Tuesday morning, August 25th. Narrabeen-Alley Rights (beach/sandbar) will be clean with a 4ft NE swell and a light cross-offshore breeze out of the north. The combined swell energy is moderate at 270, and the wind is cleaning it up nicely. The water temp is 63°, which is about 1° cooler than usual for this time of year – a bit fresh, but nothing crazy. The swell direction is from the ENE, which is exactly what this spot likes, and it’s very consistent, so you’ll get plenty of waves. Expect a few other surfers out, as crowds are often around.
Tuesday afternoon gets a bit bigger at 5ft NE, but the energy jumps to 380, and the conditions are only marginal. That’s getting a bit much for beginners, and the 7-second period makes it a bit lumpy.
Wednesday the 26th brings a cross-shore SSW wind at 12 mph, with 4ft ENE swell, but the quality drops. The energy is moderate (168), but the wind chops it up. The rest of the week into the weekend offers small, inconsistent waves – mostly under 3ft – with onshore or cross-shore winds. The combined energy values are low (46-259), and the surf conditions are poor.
Into the second week, from September 1st onward, we’ve got tiny, clean waves in the 1ft to 3ft range with light offshore winds on some mornings. The energy is weak (35-121). It’s surfable but very ordinary. Nothing to write home about, but the offshore winds make it a nice session for a longboard if you’re keen.
So, bottom line: if you’re picking a day, make it Tuesday morning, August 25th. That’s the only real standout in this 16-day stretch.
Rusty.
Short Range ForecastModerate rain (total 13mm), heaviest on Tue afternoon. Warm (max 23°C on Tue morning, min 14°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Wed morning. Very mild (max 17°C on Fri morning, min 12°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | |||||||||||||||
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) | NE 6 | ENE 9 | NE 4 | NE 5 | NE 5 | NE 6 | NE 6 | NE 7 | NE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 8 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 9 | 52 | 29 | 45 | 70 | 178 | 150 | 229 | 164 | 162 | 130 | 76 | 52 | 54 | 88 | 58 | 75 | 137 | 119 | 96 | 73 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | off | cross | cross-on | cross-on | glassy | cross-on | glassy | glassy | cross-on | cross | cross | on | off |
High Tide | 4:58PM1.34m | 5:48AM0.93m | 5:46PM1.40m | 6:30AM1.00m | 6:27PM1.47m | 7:07AM1.08m | 7:04PM1.52m | 7:41AM1.15m | 7:40PM1.55m | 8:15AM1.23m | 8:15PM1.55m | 8:49AM1.30m | 8:51PM1.52m | ||||||||
Low Tide | 10:09AM0.54m | 11:58PM0.38m | 11:07AM0.49m | 00:37AM0.31m | 11:56AM0.43m | 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 | |||||||
 | |  |  | |  |  |  |  |  | |  | | | | | | | | | | |
 | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — |
 | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:32 | — | — | 5:34 | — |
mm | — | — | — | — | — | — | — | 6 | 7 | 4 | 1 | 2 | — | — | — | — | — | 2 | — | — | — |
Temp °C | 17 | 17 | 16 | 19 | 18 | 17 | 23 | 17 | 16 | 15 | 16 | 15 | 16 | 15 | 15 | 17 | 16 | 16 | 16 | 16 | 15 |
Feels °C | 14 | 14 | 13 | 16 | 14 | 15 | 20 | 15 | 14 | 12 | 13 | 13 | 14 | 12 | 14 | 15 | 14 | 16 | 14 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 8 | S 10 | S 10 | S 10 | NE 6 | NE 6 | NE 7 | NE 8 | ENE 8 | ENE 8 | S 8 | S 8 | S 8 | S 11 | S 9 | S 8 | SSE 10 | SSE 9 | SSE 9 | SSE 9 |
| kJ | 320 | 157 | 247 | 123 | 96 | 124 | 97 | 151 | 164 | 162 | 130 | 280 | 320 | 187 | 303 | 196 | 91 | 137 | 119 | 96 | 73 |
Swell 2 Height (m) Direction Period (s) | NE 6 | S 13 | NE 8 | ENE 8 | S 18 | S 10 | S 10 | S 10 | S 9 | S 16 | S 11 | ENE 8 | ENE 8 | ENE 8 | S 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 |
| kJ | 9 | 222 | 18 | 6 | 25 | 72 | 45 | 28 | 14 | 42 | 9 | 76 | 52 | 54 | 68 | 58 | 56 | 44 | 61 | 67 | 68 |
Swell 3 Height (m) Direction Period (s) | S 17 | E 14 | E 14 | S 17 | E 13 | ENE 10 | NE 9 | S 16 | S 16 | — | S 14 | — | S 15 | S 15 | ENE 9 | S 14 | SSE 10 | S 12 | SSW 11 | S 10 | S 10 |
| kJ | 23 | 4 | 4 | 22 | 3 | 9 | 23 | 19 | 46 | — | 15 | — | 4 | 38 | 88 | 35 | 75 | 44 | 39 | 32 | 8 |
Wind waves Height (m) Direction Period (s) | E 4 | ENE 9 | NE 4 | NE 5 | NE 5 | NE 6 | NE 6 | NE 7 | NNW 3 | SW 3 | S 6 | — | — | — | — | — | NE 3 | NE 4 | SSW 2 | S 4 | S 4 |
| kJ | 6 | 52 | 29 | 45 | 70 | 178 | 150 | 229 | 1 | 6 | 106 | — | — | — | — | — | 2 | 17 | 1 | 12 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 7 | 7 | 0 | 0 | 178 | 0 | 0 | 3 | 0 | 2 | 54 | 2 | 0 | 18 | 0 | 0 | 82 | 1 | 2 | 2 | 0 |
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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