Narrabeen-Alley Rights Surf Break

Lat Long: 33.71° S 151.31° E

Narrabeen-Alley Rights Surf Forecast and Surf Report

Issued: 9 pm 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Narrabeen-Alley Rights sea temperature is
17.2° C
0.7° 

Narrabeen-Alley Rights surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Narrabeen-Alley Rights surf forecast from 20 Aug 2026:

  • Best quality surf: Friday 21 Aug, 4AM (local time) - 3.5ft (1.0m), 6s period, ENE swell with offshore winds.
  • Most powerful swell: Wednesday 26 Aug, 7AM (local time) - 4ft (1.2m), 8s period, NE swell with 192 kJ wave energy.
  • Next surfable swell (1★+): Friday 21 Aug, 4AM (local time) - 3.5ft (1.0m), 6s 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 Friday (Aug 21) at 4AM. The primary swell is predicted to be 1.0m and 6s 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 1.2m 8s and forecast to arrive on Wednesday (Aug 26) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 11s period and expected on Thursday (Aug 27) at 10AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Fri 21st Aug)3.5ft (1.0m) 6s
Best Surf 4AM (Fri 21st Aug)3.5ft (1.0m) 6s
Most Powerful 7AM (Wed 26th Aug)4ft (1.2m) 8s

Table - best surf conditions forecast for Narrabeen-Alley Rights over the next 16 days.


The Lowdown

Alright, old mate. Let's have a look at what's cookin' for the next couple of weeks.

Honestly, I'm not gonna sugarcoat it – this outlook is a bit of a flat patch for the most part. We've got a long run of pretty ordinary conditions through the end of August and into early September. There's a big gap in quality surf, with a few days of small, messy waves and dodgy winds. The standout is Narrabeen-Alley Rights, which is a consistent, exposed beach-sandbar break that needs an east-northeast swell. The water temp is about average for this time of year, so nothing crazy there.

We start off on Friday the 21st with a small 3ft ENE swell, period of 6 seconds, and light NW winds. It's clean, but the energy is weak (51), and the waves are just ordinary. Not worth getting excited about. Saturday the 22nd has even smaller surf, and Sunday the 23rd is glassy but tiny with a 2ft swell. The whole first week is a bit of a write-off – small waves, average conditions, and the swell energy stays low, mostly under 100 for most of it.

Now, the first real sign of life comes in on Wednesday the 26th morning. We get a 4ft ENE swell with a 7-second period, light NW winds, and it's clean. The energy jumps to 179 – still moderate but better. It's still described as very ordinary, but it's the best we've seen. Thursday the 27th drops back off, and then Friday the 28th morning has a small 2ft ENE swell with clean conditions, but it's nothing to write home about.

Saturday the 29th is where it gets interesting, but not for surfing. The swell jumps to 5ft, but the wind is screaming from the south at 28 mph, making it a messy, cross-onshore disaster. The energy is strong (499), but those waves are a washing machine. This setup is more interesting for kite surfing than paddle surfing. Sunday the 30th is even more of a beast – 10ft ENE swell, onshore winds, huge energy (1148), but it's a total mess for the average punter, and only for very experienced chargers.

The first week of September brings a bit of a shift. We get a longer period swell (9-11 seconds) which is a groundswell, but the size drops right back. Monday the 31st morning has a 6ft ENE swell, but it's still onshore. Tuesday the 1st morning sees a 4ft ENE wave with light SSW winds, described as marginal. The energy sits around 295. The best of this second week looks like Thursday the 3rd morning – a 3ft E swell with a 11-second period, light NW winds, clean conditions. That's a clean, lined-up groundswell, perfect for a point break or reef, but on a beach break it might be a bit too straight. Still, it's the pick of the later period. Friday the 4th morning is also small and glassy.

So, the only true standout is that Thursday the 3rd morning. The swell is 3ft from the east, period of 11 seconds, with glassy winds. It's small, but it's clean and has some energy (121). Everything else is a wait-and-see game. The crowds are often at Alley, so you might have some company on the better days.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 21°C on Fri morning, min 13°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 12mm), heaviest on Tue night. Warm (max 23°C on Tue morning, min 14°C on Sun night). Wind will be generally light.

Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
0
0
0
0
0
0
0
0
1
0
1
1
1
0
1
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
ENE
6
0.8
ENE
6
0.7
NE
6
0.4
ENE
6
0.4
NE
6
0.4
NE
6
0.4
NE
6
0.6
ENE
6
0.6
ENE
4
0.9
NE
4
0.9
ENE
6
1
ENE
7
0.9
ENE
6
1.1
NE
6
0.9
ENE
6
1.2
NE
7
1.2
ENE
8
1
ENE
8
0.8
ENE
8
Wave Graph
Metric surfscale
Energy kJ
97
51
39
14
9
9
9
27
14
27
57
96
65
93
64
139
179
143
86
Wind (km/h)
10
NW
10
NW
5
N
10
W
15
W
15
SSE
5
S
0
WNW
15
NE
10
N
10
N
25
NE
5
NNW
15
N
10
NNW
15
NNW
15
WNW
20
SSW
15
SW
Wind State
off
off
cross-off
cross-off
cross-off
cross-on
glassy
glassy
cross
cross-off
cross-off
cross
off
cross-off
off
cross-off
off
cross
cross
High Tide
2:20AM0.87m
2:55PM1.26m
3:43AM0.85m
4:00PM1.28m
4:55AM0.88m
4:58PM1.34m
5:48AM0.93m
5:46PM1.40m
6:30AM1.00m
6:27PM1.47m
7:07AM1.08m
7:04PM1.52m
Low Tide
7:50AM0.53m
10:06PM0.50m
9:00AM0.55m
11:10PM0.45m
10:09AM0.54m
11:58PM0.38m
11:07AM0.49m
00:37AM0.31m
11:56AM0.43m
1:12AM0.24m
12:39PM0.37m
1:43AM0.18m
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
cloud
clear
clear
clear
part cloud
part cloud
part cloud
light rain
mod rain
thunderstorm
rain showers
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:26
6:26
6:24
6:24
6:22
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:28
5:29
5:30
5:30
5:30
5:31
 mm
1
7
1
3
Temp °C
19
21
20
16
20
20
16
16
16
16
19
18
17
23
20
16
21
16
14
Feels °C
16
20
19
14
16
16
15
15
13
13
15
14
15
19
19
15
20
13
10
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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