
Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 20 Jul 2026:
- Best quality surf: Tuesday 21 Jul, 1AM (local time) - 5ft (1.6m), 10s period, ENE swell with offshore winds.
- Most powerful swell: Tuesday 21 Jul, 1AM (local time) - 5ft (1.6m), 10s period, ENE swell with 540 kJ wave energy.
- Next surfable swell (1★+): Tuesday 21 Jul, 1AM (local time) - 5ft (1.6m), 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 (Jul 21) at 1AM. The primary swell is predicted to be 1.6m and 10s period. 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 1.6m 10s and forecast to arrive on Tuesday (Jul 21) at 1AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 15s period and expected on Saturday (Jul 25) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Tue 21st Jul) | 5ft (1.6m) 10s |
| Best Surf | 1AM (Tue 21st Jul) | 5ft (1.6m) 10s |
| Most Powerful | 1AM (Tue 21st Jul) | 5ft (1.6m) 10s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
G’day, I’m Rusty, and I’ve been looking at the charts for Narrabeen-Alley Rights. This is a sandbar setup, exposed to the swell, and it’s an advanced spot, so it’s not for the faint-hearted.
The first real action fires up on Tuesday morning, 21 July. The swell is coming from the ENE at 5ft, with a period of 10 seconds, and the combined energy is sitting at 433 (moderate wave energy). The wind is a light N at 6 mph, blowing cross-offshore, which is perfect. The water temp is about average for this time of year. This is the standout of the whole run – clean, punchy waves for the advanced crew. You’ll want to be out there early before the crowds arrive, because it’s often packed.
The good vibes carry through to Wednesday, 22 July. Morning sees a WNW cross-off breeze at 6 mph, with the swell dropping a touch to 4ft from the ENE, still a 10-second period, and energy at 269 (moderate). The afternoon is the real gem – glassy conditions with the wind shifting to ENE at just 3 mph. The swell is 4ft, ENE, and the energy is 210 (moderate). That’s a session you’ll be stoked on.
Thursday, 23 July, the swell drops to 3ft, and by Friday, 24 July, it’s fading fast down to 2ft. The energy is weak (41 and 28). The wind stays clean through the mornings, but the waves are too small to get excited about. Saturday, 25 July, and Sunday, 26 July, are effectively flat – 1.0ft to 2ft with very low energy (15 and 14). There’s a gap of about four days here with no real surf to recommend.
We get a bit of a pulse on Monday, 27 July, but it’s a tiny 0.3ft SSE swell with a ridiculous 17-second period – that’s a very long period groundswell, but there’s just no size. The energy is 13 (weak). It’s a no-go. Tuesday, 28 July, is a bit bigger at 2ft to 2ft, but the energy is still weak (47 and 66), and the wind is messy. Not worth paddling out.
The end of the forecast window gets interesting. On Monday, 3 August, morning we see a jump to 2ft from the SSE with a 18-second period and energy of 350 (moderate). The wind is a strong W at 16 mph, cross-offshore, so it’ll be clean. This is a long-period groundswell, which can be tricky on a beach break – it might break a bit straight – but for the advanced crew, it’s worth a look. The size is small, so it’s not a standout.
The real late highlight is on Wednesday, 5 August, morning. The swell comes up to 4ft from the SSE, 10-second period, with energy at 390 (moderate). The wind is a light WNW at 6 mph, offshore, and the conditions are clean. This is your second-best bet in the 16-day window – a promising session, but it’s a long way out, so keep an eye on it.
All in all, Tuesday morning, 21 July, is the one to circle. Get yourself down to Narrabeen-Alley Rights for a serious session.
Rusty
Short Range ForecastMostly dry. Warm (max 20°C on Wed afternoon, min 11°C on Tue night). Winds increasing (calm on Wed afternoon, fresh winds from the WSW by Thu afternoon). | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Sat afternoon, min 7°C on Fri night). Winds decreasing (fresh winds from the WSW on Sat afternoon, calm by Sun afternoon). | ||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | ||||||||||||||
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 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | SSW 6 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 8 | ENE 8 | SSW 4 | ENE 8 | ENE 8 |
Wave Graph | |||||||||||||||||||
540 | 433 | 314 | 339 | 269 | 210 | 168 | 119 | 92 | 128 | 40 | 28 | 27 | 15 | 14 | 6 | 8 | 6 | 6 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross | cross-off | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross | on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-off |
High Tide | 00:53AM1.15m | 1:51PM1.28m | 1:50AM1.02m | 2:46PM1.29m | 2:56AM0.92m | 3:41PM1.31m | 4:09AM0.88m | 4:36PM1.34m | 5:15AM0.88m | 5:26PM1.39m | 6:09AM0.92m | 6:11PM1.44m | |||||||
Low Tide | 7:11AM0.31m | 8:13PM0.51m | 7:54AM0.39m | 9:28PM0.51m | 8:43AM0.45m | 10:38PM0.48m | 9:38AM0.48m | 11:38PM0.43m | 10:34AM0.49m | 00:26AM0.37m | 11:27AM0.46m | 1:07AM0.31m | |||||||
— | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | |
— | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | 5:08 | — | — | 5:09 | — | — | 5:09 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 16 | 15 | 15 | 19 | 20 | 16 | 18 | 17 | 11 | 13 | 13 | 11 | 18 | 19 | 13 | 16 | 15 | 15 |
Feels °C | 12 | 13 | 12 | 13 | 16 | 17 | 12 | 13 | 9 | 3 | 9 | 10 | 7 | 14 | 14 | 7 | 14 | 12 | 14 |
Swell 1 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | S 10 | S 9 | S 15 | S 11 | S 10 | S 11 | S 11 | S 10 | S 9 |
540 | 433 | 314 | 339 | 269 | 210 | 168 | 119 | 92 | 53 | 522 | 425 | 2023 | 826 | 424 | 272 | 434 | 502 | 320 | |
Swell 2 Height (m) Direction Period (s) | S 11 | S 11 | S 10 | S 10 | S 10 | S 11 | S 10 | S 10 | S 10 | S 18 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 8 | S 16 | ENE 8 | ENE 8 | ENE 8 |
84 | 56 | 32 | 31 | 17 | 20 | 8 | 8 | 7 | 6 | 40 | 28 | 27 | 15 | 14 | 45 | 6 | 6 | 6 | |
Swell 3 Height (m) Direction Period (s) | SE 14 | S 16 | S 15 | S 14 | S 12 | — | — | E 9 | SE 8 | SE 8 | E 7 | S 21 | — | S 20 | S 19 | ENE 8 | E 8 | ENE 8 | S 13 |
8 | 19 | 17 | 4 | 11 | — | — | 2 | 3 | 2 | 1 | 35 | — | 8 | 7 | 6 | 1 | 6 | 3 | |
Wind waves Height (m) Direction Period (s) | — | — | NE 3 | NNE 4 | WNW 2 | — | W 3 | SW 5 | SSW 5 | SSW 6 | — | — | — | WNW 3 | — | SW 2 | SSW 4 | — | — |
— | — | 6 | 29 | 1 | — | 2 | 10 | 25 | 128 | — | — | — | 4 | — | 1 | 8 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 128 | 0 | 0 | 0 | 0 | 4 | 26 | 2 | 1 | 2 | 1 | 1 | 2 | 4 | 1 | 18 | 1 |
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.










