Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 31 Aug 2026:
- Best quality surf: Monday 7 Sep, 4PM (local time) - 5.5ft (1.7m), 7s period, NE swell with offshore winds.
- Most powerful swell: Monday 7 Sep, 4PM (local time) - 5.5ft (1.7m), 7s period, NE swell with 253 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 10PM (local time) - 1.5ft (0.4m), 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 Tuesday (Sep 01) at 10PM. The primary swell is predicted to be 0.4m and 10s period with a secondary swell of 0.8m and 5s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Narrabeen-Alley Rights in the next 16 days are 1.7m 7s and forecast to arrive on Monday (Sep 07) at 4PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Monday (Sep 07) at 7AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Tue 1st Sep) | 1.5ft (0.4m) 10s |
| Best Surf | 4PM (Mon 7th Sep) | 5.5ft (1.7m) 7s |
| Most Powerful | 4PM (Mon 7th Sep) | 5.5ft (1.7m) 7s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
G’day, I’m Rusty. Let me tell you straight: this 16-day stretch at Narrabeen-Alley Rights is pretty grim for a wave. There’s a big gap of nothing surf-worthy right at the start, so don't even bother checking the ocean for the first week or so. From now right through until Monday the 7th, it’s all tiny junky swell with lousy conditions. We’re talking barely a ripple, short-period slop, and no energy to speak of. You’ll have to wait nearly a full week before anything even gets your attention.
The first real flicker of hope comes on Monday afternoon the 7th. A chunk of new swell pushes in – 6ft from the NE with a short period of 7 seconds. It’s shifty and a bit fat for the beach, but the wind is clean offshore from the NW, and that’s what saves it. The combined swell energy hits 421 (moderate energy, actually), so there’s some grunt. This is the standout window for the whole outlook. If you’re an advanced surfer and you’ve got a short board, Tuesday the 7th afternoon is your best bet. After that, it fades fast.
Tuesday the 8th sees the swell drop back to 4ft from the NE, still with a clean cross-off wind, but the energy is down to 176. It’s okay, but nothing to rave about. By Wednesday the 9th, it’s back to tiny waves again, and you’re staring at another long lull right through to Sunday the 13th. On Sunday the 13th, there’s a small pulse of 3ft from the NE (period 6-7 seconds) and light offshore winds; the energy is only 63-65. It’s “surfable but very ordinary,” as we say – a one-out session if you’re desperate. Beyond that, the second week brings a few more small, messy days with a bit of southerly chop, but nothing that’s gonna get the heart pumping.
The water temperature is about average for this time of year, no big anomaly to talk about.
Don’t expect any crowd here – with surf this lousy, you’ll have the place to yourself. That’s the only silver lining.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Tue afternoon, min 15°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Sat morning, min 13°C on Thu night). Winds increasing (light winds from the NW on Thu night, fresh winds from the WNW by Sat afternoon). | ||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | ||||||||||||||
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 11 | ENE 11 | NE 6 | ENE 10 | ENE 10 | ENE 10 | NE 5 | ENE 10 | SSE 10 | ENE 10 | ENE 10 | NE 5 | ENE 9 | NE 6 | NE 6 | NE 6 | E 10 | NE 4 |
Wave Graph | |||||||||||||||||||
15 | 23 | 37 | 36 | 33 | 33 | 33 | 28 | 19 | 36 | 19 | 19 | 24 | 8 | 27 | 18 | 12 | 8 | 34 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | off | off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross | off | off | off | cross-off | cross-on | cross-on | cross-off |
High Tide | 10:08PM1.36m | 10:42AM1.43m | 10:53PM1.25m | 11:27AM1.43m | 11:46PM1.13m | 12:21PM1.42m | 00:52AM1.02m | 1:26PM1.41m | 2:16AM0.95m | 2:40PM1.43m | 3:45AM0.95m | 3:54PM1.48m | |||||||
Low Tide | 4:20AM0.17m | 4:56PM0.28m | 4:58AM0.24m | 5:53PM0.32m | 5:43AM0.32m | 7:02PM0.36m | 6:38AM0.40m | 8:23PM0.36m | 7:48AM0.45m | 9:47PM0.31m | 9:08AM0.46m | 10:57PM0.23m | |||||||
— | 6:13 | — | — | 6:11 | — | — | 6:11 | — | — | 6:09 | — | — | 6:07 | — | — | 6:07 | — | — | |
— | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:38 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 15 | 23 | 26 | 20 | 26 | 26 | 21 | 24 | 24 | 16 | 19 | 17 | 17 | 27 | 26 | 20 | 16 | 16 | 16 |
Feels °C | 13 | 19 | 22 | 17 | 22 | 22 | 18 | 18 | 19 | 11 | 15 | 13 | 14 | 21 | 20 | 18 | 13 | 12 | 14 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | NE 5 | S 10 | SSE 10 | S 10 | S 10 | NE 5 | S 10 | NE 6 | NE 6 | S 11 | S 12 | S 9 |
104 | 196 | 182 | 133 | 106 | 76 | 50 | 28 | 53 | 33 | 259 | 120 | 24 | 89 | 27 | 18 | 302 | 224 | 71 | |
Swell 2 Height (m) Direction Period (s) | S 14 | ENE 11 | ENE 11 | NE 6 | NE 5 | ENE 10 | ENE 10 | S 10 | NE 6 | NE 7 | NE 7 | ENE 10 | S 8 | ENE 9 | S 9 | S 9 | NE 6 | NE 6 | S 14 |
136 | 23 | 37 | 36 | 13 | 33 | 33 | 74 | 8 | 15 | 7 | 19 | 42 | 8 | 41 | 27 | 12 | 5 | 144 | |
Swell 3 Height (m) Direction Period (s) | ENE 9 | ENE 8 | N 12 | ENE 10 | ENE 10 | NE 6 | SSE 13 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | S 11 | S 11 | S 15 | E 9 | E 11 | ENE 11 | E 10 | E 10 |
15 | 7 | 3 | 34 | 33 | 11 | 32 | 19 | 19 | 19 | 19 | 10 | 58 | 18 | 7 | 9 | 11 | 8 | 8 | |
Wind waves Height (m) Direction Period (s) | NE 3 | NE 3 | NE 4 | NW 3 | NW 3 | WNW 3 | NW 3 | WNW 3 | WSW 3 | SSW 5 | — | NE 3 | — | NNE 5 | W 4 | SW 3 | — | E 3 | NE 4 |
3 | 2 | 21 | 2 | 2 | 2 | 1 | 4 | 2 | 36 | — | 4 | — | 47 | 17 | 2 | — | 2 | 34 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 4 | 0 | 4 | 127 | 1 | 1 | 20 | 1 | 2 | 173 | 4 |
Best forecast wave conditions in Sydney North Coast | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.











