Surf Forecasts:
Narrabeen-Alley Rights surf forecast from 20 Jul 2026:
- Best quality surf: Monday 20 Jul, 10PM (local time) - 5.5ft (1.7m), 11s period, ENE swell with cross-offshore winds.
- Most powerful swell: Monday 20 Jul, 1PM (local time) - 6ft (1.9m), 11s period, ENE swell with 823 kJ wave energy.
- Next surfable swell (1★+): Monday 20 Jul, 10PM (local time) - 5.5ft (1.7m), 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 Monday (Jul 20) at 10PM. The primary swell is predicted to be 1.7m and 11s period. 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 1.9m 11s and forecast to arrive on Monday (Jul 20) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Friday (Jul 24) at 7AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Mon 20th Jul) | 5.5ft (1.7m) 11s |
| Best Surf | 10PM (Mon 20th Jul) | 5.5ft (1.7m) 11s |
| Most Powerful | 1PM (Mon 20th Jul) | 6ft (1.9m) 11s |
Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.
The Lowdown
G'day, I'm Rusty. Let's have a look at what's on the cards for our local stretch.
Alright, so we've got a bit of a mixed bag coming up. The first few days have some solid swell, but the real standout is that Monday morning session. After that, the surf really drops away into a long, quiet spell.
The first real action is on Monday, July 20th. Narrabeen-Alley Rights is looking prime for the early session. We've got a solid 6 ft ENE swell, with a nice 11-second period, pushing through with moderate energy (832). The wind is a light 3 mph W, which is a cross-off breeze, so the waves will be clean and well-shaped. It's an advanced break, and it's very consistent, so you'll need to be on your game, but the crowds are often a factor here, so be ready for company. The water temp is 65°, which is about average for this time of year, nothing unusual.
The swell holds through Tuesday morning, July 21st, with a smaller 5 ft ENE swell, still a clean 10-second period (433 energy). The wind is a light N at 6 mph, again cross-off, so it's still good. But it's not as meaty as Monday.
From Wednesday, July 22nd, the size really starts to drop, and the energy levels fall off a cliff. The waves become small and weak, with the combined energy falling from 214 down to nearly nothing. From Thursday, July 23rd, right through to the end of the forecast period on August 4th, we're looking at tiny, poor surf. There will be a massive gap of nearly two weeks with no real recommendations. The swell is almost non-existent, and the winds are often onshore or too strong. A few pockets of clean, small waves pop up but they're barely rideable. The best of the rest is a tiny 1 ft SSE swell on Saturday, July 25th, but it's got a very long 18-second period, which can be a bit weird at a beach break. Honestly, for the vast majority of the 16 days, it's a dry spell.
So, if you want a wave, get out on Monday morning, July 20th. That's your one true standout. After that, the kites might have more fun than the paddle crew.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Wed afternoon, min 11°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Sat afternoon, min 8°C on Thu night). Winds decreasing (fresh winds from the WSW on Thu afternoon, light winds from the WSW by Fri morning). | ||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||
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 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SSE 18 | ENE 8 | ENE 8 | ENE 8 | NE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 823 | 743 | 540 | 433 | 314 | 296 | 214 | 210 | 139 | 94 | 92 | 70 | 40 | 27 | 27 | 14 | 110 | 7 | 6 | 6 | 2 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | on | cross-off |
High Tide | 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 | 5:15AM0.88m | 5:26PM1.39m | 6:09AM0.92m | 6:11PM1.44m | ||||||||
Low Tide | 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 | 10:34AM0.49m | 00:26AM0.37m | 11:27AM0.46m | 1:07AM0.31m | ||||||||
 | |  | | | |  |  | | | | | | | | | | | | | | |
 | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — |
 | — | 5:06 | — | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | 5:08 | — | — | 5:09 | — | — | 5:09 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 14 | 16 | 16 | 15 | 18 | 20 | 16 | 18 | 17 | 11 | 13 | 14 | 11 | 17 | 19 | 13 | 17 | 16 | 14 |
Feels °C | 14 | 13 | 12 | 13 | 14 | 13 | 15 | 17 | 13 | 13 | 10 | 4 | 10 | 11 | 6 | 13 | 16 | 8 | 13 | 12 | 10 |
Swell 1 Height (m) Direction Period (s) | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | S 9 | S 9 | S 11 | S 12 | S 12 | S 12 | S 11 | S 10 | S 10 |
| kJ | 823 | 743 | 540 | 433 | 314 | 296 | 214 | 210 | 139 | 94 | 92 | 70 | 750 | 389 | 389 | 596 | 456 | 726 | 496 | 384 | 363 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 12 | S 11 | S 11 | S 10 | S 10 | S 10 | S 11 | S 10 | S 10 | SSW 5 | S 14 | ENE 8 | ENE 8 | S 16 | ENE 8 | SSE 18 | ENE 8 | ENE 8 | ENE 8 | NE 8 |
| kJ | 181 | 134 | 84 | 56 | 32 | 31 | 17 | 20 | 19 | 8 | 5 | 15 | 40 | 27 | 605 | 14 | 110 | 7 | 6 | 6 | 2 |
Swell 3 Height (m) Direction Period (s) | SE 15 | SE 15 | SE 14 | S 16 | S 15 | S 14 | S 12 | — | — | E 9 | S 10 | SE 8 | S 17 | S 21 | ENE 8 | SSW 19 | ENE 8 | — | E 8 | S 15 | — |
| kJ | 9 | 9 | 8 | 19 | 17 | 4 | 11 | — | — | 2 | 7 | 2 | 23 | 36 | 27 | 73 | 14 | — | 1 | 4 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NE 3 | NNE 4 | WNW 2 | — | W 3 | W 3 | — | S 8 | — | — | — | W 3 | — | — | — | — | — |
| kJ | — | — | — | — | 6 | 28 | 1 | — | 2 | 1 | — | 258 | — | — | — | 1 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 7 | 0 | 0 | 127 | 0 | 0 | 9 | 0 | 4 | 6 | 2 | 1 | 4 | 1 | 4 | 0 | 4 | 2 | 2 | 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.
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