Manly-South Steyne Surf Break

Lat Long: 33.80° S 151.30° E

Manly-South Steyne Surf Forecast and Surf Report

Issued: 9 pm 23 Aug 2026 (local time)

Forecast update in  hr  min

Today's Manly-South Steyne sea temperature is
17.0°C
0.8° 

Manly-South Steyne surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Manly-South Steyne surf forecast from 23 Aug 2026:

  • Best quality surf: Friday 28 Aug, 1AM (local time) - 4.5ft (1.3m), 11s period, S swell with cross-offshore winds.
  • Most powerful swell: Friday 28 Aug, 1AM (local time) - 4.5ft (1.3m), 11s period, S swell with 403 kJ wave energy.
  • Next surfable swell (1★+): Thursday 27 Aug, 7AM (local time) - 5ft (1.6m), 9s period with S swell.

Best Forecast Surf Conditions for Manly-South Steyne this week:

The surf forecast for Manly-South Steyne over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 27) at 7AM. The primary swell is predicted to be 1.6m and 9s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Manly-South Steyne in the next 16 days are 1.3m 11s and forecast to arrive on Friday (Aug 28) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Tuesday (Aug 25) at 1AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Thu 27th Aug)5ft (1.6m) 9s
Best Surf 1AM (Fri 28th Aug)4.5ft (1.3m) 11s
Most Powerful 1AM (Fri 28th Aug)4.5ft (1.3m) 11s

Table - best surf conditions forecast for Manly-South Steyne over the next 16 days.


The Lowdown

G'day, it's Rusty. Let's be straight with you – the next 16 days for Manly-South Steyne are looking pretty grim. There's a long stretch of nothing worthwhile, and honestly, a lot of it is a write-off for a paddle surfer. You're looking at a gap of about a week before we see anything that's even worth a mention, and even then, it's not much to get excited about.

We start on Monday the 24th with nothing. Tiny, messy swell and onshore winds. Tuesday the 25th is even smaller, and we go through to Wednesday the 26th with barely a ripple. You're better off staying home.

Thursday the 27th morning is the first real glimmer. We get a pulse of 5 ft S swell, but the period is a short 8 seconds, so it's going to be a bit lumpy and weak. The combined energy is moderate (304). The wind is light and cross-off, so the surface will be clean. It's surfable, but ordinary. The afternoon gets pushed onshore again, so get in early if you're keen.

Friday the 28th is a step back – 3 ft to 4 ft, onshore winds, and the conditions are just poor. The energy is moderate (245-346) but the wind kills it.

Saturday the 29th morning is the best of a bad bunch for the first week. We've got a 4 ft SSE swell with a 10-second period, and the wind is glassy. The surface will be like a mirror, a total treat for the conditions. The combined energy is moderate (220). It's a rare moment of calm. But the crowds at Manly can be a problem, and with the only decent window being a Saturday morning, expect it to be busy.

Then we hit another big gap. Sunday the 30th through to Thursday the 3rd of September is all tiny, inconsistent, and mostly wind-affected. A few sessions have clean conditions, but the swell is just too small to bother with. The energy is weak to non-existent, often under 100.

Now, Friday the 4th of September shows a bit of life. The afternoon session has a 3 ft S swell, and the wind is a moderate 15 mph offshore. That will produce clean, lined-up waves, and the energy is moderate (230). It's surfable, but still not a standout.

The one true standout is the morning of Saturday the 5th of September. This is your best shot. The swell is 3 ft from the SSE, but the period is a very long 16 seconds. That's proper groundswell. The combined energy is strong (524). The wind is a gentle 9 mph cross-off, so it will be clean. For a reef break like Manly-South Steyne, that long period will be a real treat, wrapping in nicely. The wave quality will be much better than the height suggests. This is the one to circle on the calendar. The afternoon gets blown out by a strong onshore, so don't be late.

After that, it's back to small, onshore, and ordinary for the rest of the run. Sunday the 6th and beyond is all tiny, weak, and messy. The combined energy drops off a cliff. The water temperature is about average for this time of year.

Overall, if you're a paddle surfer, you've got two windows: Saturday morning the 29th and Saturday morning the 5th of September. The 5th is the real pick, but it's a long way out and things can change. For the rest, you're better off with a kite.

Rusty.

Short Range Forecast

Moderate rain (total 11mm), heaviest on Wed morning. Warm (max 22°C on Tue morning, min 14°C on Sun night). Mainly fresh winds.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 17°C on Fri morning, min 14°C on Wed night). Wind will be generally light.

Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
1
0
2
0
0
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
S
10
0.8
S
10
0.7
S
10
0.5
S
10
0.4
S
9
0.4
S
9
0.2
S
16
0.2
S
11
0.2
S
11
1.6
S
8
1.4
S
8
1.2
S
8
1.3
S
11
1
S
9
1.2
S
11
1
SSE
10
1.1
SSE
10
1
SSE
10
0.9
SSE
9
Wave Graph
Metric surfscale
Energy kJ
202
118
89
46
27
27
21
9
9
341
283
195
403
162
338
205
210
183
136
Wind (km/h)
15
N
10
N
25
NE
15
N
15
NNW
15
NW
15
NW
20
SSW
20
SSE
15
SSE
5
S
15
E
5
NW
10
N
20
ENE
5
NNE
5
NE
15
E
5
ENE
Wind State
cross
cross-on
on
cross-on
cross
cross-off
cross-off
cross-off
cross
cross
cross-off
cross-on
cross-off
cross-on
on
cross-on
glassy
on
on
High Tide
5:49AM0.92m
5:45PM1.39m
6:30AM0.99m
6:27PM1.45m
7:07AM1.06m
7:05PM1.51m
7:42AM1.14m
7:41PM1.53m
8:16AM1.21m
8:16PM1.53m
8:50AM1.28m
8:52PM1.50m
Low Tide
11:58PM0.37m
11:07AM0.49m
00:38AM0.30m
11:56AM0.43m
1:12AM0.23m
12:39PM0.37m
1:44AM0.17m
1:19PM0.32m
2:15AM0.13m
1:59PM0.28m
2:45AM0.10m
2:40PM0.25m
3:16AM0.10m
clear
clear
clear
part cloud
cloud
light rain
rain showers
thunderstorm
rain showers
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:22
6:20
6:20
6:18
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:30
5:30
5:31
5:31
5:32
5:34
 mm
3
2
4
2
3
Temp °C
17
19
18
17
22
18
16
16
16
15
16
15
15
17
16
16
17
17
17
Feels °C
14
16
14
14
19
16
15
13
13
13
14
12
14
14
13
15
16
16
17
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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 Manly-South Steyne Surf forecast

The above surf forecast table for Manly-South Steyne provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Manly-South Steyne can be found by selecting the local surf guide option on the grey menu. Our Manly-South Steyne 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 (Manly-South Steyne) 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 Manly-South Steyne 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.

Manly-South Steyne 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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