
Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 17 Jul 2026:
- Best quality surf: Sunday 19 Jul, 10PM (local time) - 6.5ft (2.0m), 11s period, ENE swell with glassy winds.
- Most powerful swell: Sunday 19 Jul, 7AM (local time) - 7.5ft (2.3m), 11s period, ENE swell with 1,256 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 10PM (local time) - 6.5ft (2.0m), 11s 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 Sunday (Jul 19) at 10PM. The primary swell is predicted to be 2.0m and 11s period. 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 2.3m 11s and forecast to arrive on Sunday (Jul 19) at 7AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 9s period and expected on Thursday (Jul 23) at 7PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 19th Jul) | 6.5ft (2.0m) 11s |
| Best Surf | 10PM (Sun 19th Jul) | 6.5ft (2.0m) 11s |
| Most Powerful | 7AM (Sun 19th Jul) | 7.5ft (2.3m) 11s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
G’day, it’s Rusty. We’ve got a bit of a mixed bag coming up over the next couple of weeks at Narrabeen-Alley Rights. Right now, the surf is pretty ordinary, but there’s a clear standout window that’s worth circling on the calendar. Let’s break it down in order.
The first few days are a write-off. Saturday the 18th and Sunday the 19th are hammered by onshore wind and messy conditions. Saturday morning has a weak 3.6ft swell from the ESE with a short period of 6 seconds, and the combined energy is only 108 – that’s weak. Not worth paddling out. Sunday brings a bigger 7.5ft swell from the ENE, period up to 11 seconds, and energy jumps to 1176 (moderate), but that onshore wind from the SE is still ruining it. The surf is marginal at best.
Then Monday the 20th morning is where it all comes together. We’ve got a clean 5.9ft ENE swell, period 11 seconds, and the wind is a light offshore from the west – that’s a magic combo. The combined energy sits at 701 (moderate), and the wave state is clean. This is the standout session of the whole outlook. The swell direction (ENE) lines up well with the optimum for this beach/sandbar setup, and it’s a very consistent break. The water temperature is about average for this time of year, so no drama there. The only thing to keep in mind: at 5.9ft, it’s pushing into the zone where beginners might find it a bit much, and crowds are often a factor here, so expect company.
Monday afternoon and Tuesday the 21st are still surfable but not as good. Monday afternoon goes cross-shore with a gentle breeze, and the swell drops to 5.6ft, period 10 seconds, energy 615 (moderate). Tuesday morning has a lighter 4.6ft ENE swell, clean cross-off wind from the north, and energy down to 373 – still okay, but not the standout.
From Wednesday the 22nd onwards, the surf steadily fades. Wednesday morning has 3.6ft swell, cross-off wind, but the energy is only 193 (weak). Wednesday afternoon goes glassy with a 3.3ft ENE swell, but the energy is 158 (weak) – it’s surfable but ordinary. Thursday the 23rd drops further to 2.6ft, then things get tiny. From Friday the 24th through to the end of the first week, we’re looking at swell heights of 1.3ft or less, with combined energy dropping into the teens or single digits. The period on some of these late days is long (14 to 18 seconds), but with no height, it’s just a dead ocean.
The gap after Monday the 20th is brutal – from Tuesday the 22nd all the way through to Friday the 31st, there’s no real surf worth chasing. The energy is weak, and the wave heights are tiny. The only possible flicker is on Saturday the 1st of August, where the afternoon shows a 5.2ft SSE swell with 11-second period and energy of 621 (moderate). But the wind is onshore from the SE, and it’s rainy – that’s marginal at best, not a standout. Sunday the 2nd fades back to nothing.
So, the honest truth: Monday the 20th morning is your only real window. A clean 5.9ft ENE swell with offshore wind and moderate energy. After that, it’s a long, quiet stretch. Narrabeen-Alley Rights is very consistent normally, so this blank run is a bit of a bummer, but forecasts can change. For now, pencil in that Monday morning session and keep an eye on the sky.
Short Range ForecastMostly dry. Very mild (max 17°C on Sat morning, min 12°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Thu afternoon. Very mild (max 19°C on Wed afternoon, min 9°C on Thu night). Winds increasing (light winds from the NNW on Tue morning, fresh winds from the SSW by Thu morning). | ||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
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) | ESE 6 | E 7 | E 8 | ENE 11 | ENE 10 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | SSW 6 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 8 |
Wave Graph | |||||||||||||||||||||
108 | 113 | 364 | 1091 | 901 | 808 | 692 | 607 | 442 | 373 | 325 | 312 | 161 | 119 | 90 | 186 | 28 | 15 | 16 | 16 | 7 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | glassy | cross-off | cross | off | cross-off | cross | off | cross-off | cross | cross-off | cross-off | cross-on | cross-off | cross-off | cross-on | cross-off |
High Tide | 11:21AM1.24m | 11:16PM1.49m | 12:10PM1.26m | 00:03AM1.32m | 12:59PM1.27m | 00:53AM1.15m | 1:51PM1.28m | 1:50AM1.02m | 2:46PM1.29m | 2:56AM0.92m | 3:41PM1.31m | 4:09AM0.88m | 4:36PM1.34m | ||||||||
Low Tide | 5:03PM0.34m | 5:52AM0.13m | 6:00PM0.41m | 6:31AM0.22m | 7:03PM0.47m | 7:11AM0.31m | 8:13PM0.51m | 7:54AM0.39m | 9:28PM0.51m | 8:43AM0.45m | 10:38PM0.48m | 9:38AM0.48m | 11:38PM0.43m | ||||||||
6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | |
— | 5:05 | — | — | 5:06 | — | — | 5:06 | — | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | 5:08 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — |
Temp °C | 17 | 17 | 17 | 17 | 16 | 15 | 15 | 15 | 14 | 15 | 16 | 15 | 18 | 19 | 16 | 15 | 13 | 12 | 13 | 13 | 13 |
Feels °C | 13 | 13 | 13 | 14 | 15 | 14 | 13 | 13 | 12 | 13 | 13 | 13 | 16 | 17 | 13 | 9 | 6 | 7 | 11 | 9 | 10 |
Swell 1 Height (m) Direction Period (s) | S 10 | E 7 | E 8 | ENE 11 | ENE 10 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 9 | S 10 | S 9 | S 9 |
69 | 113 | 364 | 1091 | 901 | 808 | 692 | 607 | 442 | 373 | 325 | 312 | 161 | 119 | 90 | 42 | 28 | 15 | 900 | 521 | 313 | |
Swell 2 Height (m) Direction Period (s) | S 21 | S 10 | S 9 | S 17 | S 16 | S 13 | S 12 | S 12 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | — | — | S 18 | ENE 9 | ENE 9 | ENE 8 |
34 | 45 | 24 | 211 | 176 | 160 | 184 | 134 | 84 | 56 | 50 | 31 | 31 | 19 | 18 | — | — | 6 | 16 | 16 | 7 | |
Swell 3 Height (m) Direction Period (s) | S 19 | S 20 | S 18 | SE 17 | SE 17 | SE 16 | SE 15 | SE 15 | S 15 | S 15 | S 15 | S 14 | S 13 | — | S 10 | — | — | — | S 18 | S 19 | S 19 |
7 | 31 | 107 | 12 | 11 | 10 | 9 | 8 | 17 | 18 | 17 | 4 | 3 | — | 18 | — | — | — | 25 | 29 | 29 | |
Wind waves Height (m) Direction Period (s) | ESE 6 | S 4 | — | — | — | — | — | — | NNE 3 | — | NE 3 | NNE 5 | WNW 3 | NE 3 | WSW 3 | SSW 6 | S 9 | S 9 | — | — | — |
108 | 3 | — | — | — | — | — | — | 4 | — | 3 | 28 | 1 | 2 | 3 | 186 | 1494 | 977 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 70 | 81 | 2 | 2 | 2 | 0 | 0 | 7 | 0 | 0 | 7 | 0 | 0 | 4 | 1 | 8 | 115 | 1 | 1 | 18 | 1 |
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.










