Manly-South Steyne surfForecast / NSW – Sydney North Coast / Australia

information circle12 Day Weather and Surf, issued 10 pm Monday 15 Dec 2025 AEDT
Forecast update in hr  min  s Forecast update imminent
Manly-South Steyne surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Manly-South Steyne sea temperature is
22.4° C
(Which is slightly warmer than usual)


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

The surf forecast for Manly-South Steyne over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Dec 23) at 2AM. The primary swell is predicted to be 0.7m and 9s period with a secondary swell of 0.8m and 5s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Manly-South Steyne in the next 12 days are 1.6m 10s and forecast to arrive on Tuesday (Dec 16) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Thursday (Dec 18) at 11PM.

Wave TypeTime (AEDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Tue 23rd Dec)2.5ft (0.7m) 9s
Best Surf 2AM (Tue 23rd Dec)2.5ft (0.7m) 9s
Most Powerful 8AM (Tue 16th Dec)5ft (1.6m) 10s

Table - best surf conditions forecast for Manly-South Steyne over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 2mm), mostly falling on Mon night. Warm (max 26°C on Thu afternoon, min 18°C on Mon night). Mainly fresh winds.

Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Fri night. Warm (max 30°C on Fri afternoon, min 22°C on Thu night). Wind will be generally light.

Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Mon
22
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.5
SSE
1.5
S
1.3
S
1.2
S
1
S
0.9
S
0.7
S
0.6
S
1.1
NE
0.4
S
0.3
S
0.3
S
0.2
S
0.4
SSE
0.1
S
0.2
S
0.3
S
0.3
S
0.3
S
0.4
S
0.7
S
Period(s) (?)11101212111111105109916414101010999
Wave
Graph
(?)Metric surfscale
Energy kJ (?)5154404883892421891107369311514196491717152776
Wind
(km/h)
20
ESE
15
E
15
E
10
NE
20
NE
30
NE
15
NNE
15
NNE
25
NE
5
NE
5
NE
15
NNE
5
S
0
WSW
20
NE
15
NW
10
NE
20
WSW
25
S
10
ENE
25
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
oncross-
on
ononcross-
on
cross-
on
cross-
on
cross-
on
glasscross-
on
glassglasscross-
on
cross-
off
cross-
on
offcross-
off
onon
High Tide
/ height (m)
6:32AM
1.39
6:56PM
0.97
7:10AM
1.44
7:43PM
0.97
7:47AM
1.49
8:26PM
0.99
8:25AM
1.53
9:07PM
1.00
9:02AM
1.55
9:47PM
1.00
9:40AM
1.56
10:26PM
1.01
10:17AM
1.56
Low Tide
/ height (m)
11:49PM
0.38
1:16PM
0.37
12:29AM
0.40
1:58PM
0.30
1:09AM
0.40
2:38PM
0.25
1:48AM
0.39
3:16PM
0.21
2:27AM
0.39
3:55PM
0.18
3:06AM
0.39
4:33PM
0.17
3:44AM
0.39
5:10PM
0.17
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Mon
22
Sunrise-5:37--5:37--5:39--5:39--5:39--5:39--5:39-
Sunset--8:00--8:01--8:01--8:02--8:04--8:04--8:05
light rain
cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
part cloud
part cloud
thunderstorm
part cloud
part cloud
light rain
cloud
light rain
part cloud
clear
clear
Rain (mm)
2-----------6--1-1---
Temp. °C181819192021192526252730243030252730272222
Feels °C (?)151617171818162424232930263229252830282119
  • Map Icons:
  • Break
  • 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 12 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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