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Surf Forecasts:

Portsea Back Beach surf break

Portsea Back Beach surfForecast / VIC – Mornington Peninsula / Australia

information circle12 Day Weather and Surf, issued 4 am Sunday 11 Jan 2026 AEDT
Forecast update in hr  min  s Forecast update imminent
Portsea Back Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Portsea Back Beach sea temperature is
18.1° C
 (Which is 1.0°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Portsea Back Beach this week:

The most powerful waves expected at Portsea Back Beach in the next 12 days are 2.1m 12s and forecast to arrive on Sunday (Jan 11) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Saturday (Jan 17) at 11PM.

Wave TypeTime (AEDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11AM (Sun 11th Jan)7ft (2.1m) 12s

Table - best surf conditions forecast for Portsea Back Beach over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Very mild (max 17°C on Tue afternoon, min 13°C on Sun night). Mainly fresh winds.

Days 3-6 Weather Summary Mostly dry. Very mild (max 19°C on Fri night, min 15°C on Wed morning). Winds increasing (moderate winds from the S on Wed morning, strong winds from the SE by Fri afternoon).

Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.1
SW
1.4
SW
1.1
SW
1.1
SW
0.9
SW
0.9
SW
1.1
SW
0.7
SW
1.4
SW
1.7
SSW
1.4
SW
1.2
SW
2.2
SSE
1.3
SW
1.3
SW
1
SW
1
SW
1
SW
1
SW
1
SW
1
SW
Period(s) (?)1211111010910161414141381212121112121212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)12295212632451541412562648211080743488572486455259245259295286295
Wind
(km/h)
25
S
25
S
20
SE
10
SE
30
S
20
SSE
20
SSE
25
S
25
S
20
S
35
SSE
35
SE
40
SE
35
SSE
35
SE
35
SE
45
SE
35
ESE
35
ESE
40
SE
40
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		crosscrosscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscrosscrosscross-
off		cross-
off		crosscross-
off		cross-
off		crosscross-
off
High Tide
/ height (m)
6:42PM
1.28
6:30AM
1.40
7:29PM
1.24
7:00AM
1.34
8:18PM
1.20
7:31AM
1.28
9:11PM
1.18
8:08AM
1.22
10:11PM
1.17
8:53AM
1.16
11:17PM
1.19
9:49AM
1.10
12:21AM
1.23
Low Tide
/ height (m)
12:26PM
0.25
12:26AM
0.51
1:03PM
0.26
1:03AM
0.62
1:41PM
0.28
1:43AM
0.72
2:22PM
0.29
2:30AM
0.79
3:06PM
0.30
3:29AM
0.85
3:57PM
0.30
4:43AM
0.86
4:54PM
0.29
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunrise6:09--6:09--6:11--6:11--6:13--6:13--6:15--
Sunset-8:46--8:46--8:46--8:45--8:45--8:45--8:45-
part cloud
clear
clear
clear
part cloud
clear
part cloud
cloud
part cloud
part cloud
clear
part cloud
cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C141414151516161716161818171818181819182019
Feels °C (?)8810121011141312131313101212121112121312
  • 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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Latest Updates

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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Portsea Back Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Portsea Back Beach at:
surf-forecast.com

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Information about the Portsea Back Beach Surf forecast

The above surf forecast table for Portsea Back Beach provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Portsea Back Beach can be found by selecting the local surf guide option on the grey menu. Our Portsea Back Beach 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 (Portsea Back Beach) 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 Portsea Back Beach 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.

Portsea Back Beach is 29 km (18 miles) from Geelong. If you plan a holiday in Mornington Peninsula, look for hotels and other accommodation in Geelong. Geelong has rooms for a wide range of budgets as well as car hire and transport links.

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