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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 10 pm Tuesday 27 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
18.4° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Portsea Back Beach this week:

The surf forecast for Portsea Back Beach over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jan 29) at 8PM. The primary swell is predicted to be 1.1m and 12s period with a secondary swell of 1.6m and 6s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Portsea Back Beach in the next 12 days are 2.0m 11s and forecast to arrive on Monday (Feb 02) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Friday (Jan 30) at 8AM.

Wave TypeTime (AEDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Thu 29th Jan)3.5ft (1.1m) 12s
Best Surf 8PM (Thu 29th Jan)3.5ft (1.1m) 12s
Most Powerful 8PM (Mon 2nd Feb)6.5ft (2.0m) 11s

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. Warm (max 28°C on Tue night, min 15°C on Wed night). Winds decreasing (fresh winds from the SW on Tue night, light winds from the SSW by Thu night).

Days 3-6 Weather Summary Mostly dry. Warm (max 20°C on Sat afternoon, min 14°C on Sun night). Winds increasing (light winds from the SE on Sat morning, strong winds from the SSW by Sun afternoon).

Wednesday
28
Thursday
29
Friday
30
Saturday
31
Sunday
01
Monday
02
Tue
03
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
1
0
0
0
0
0
2
1
0
0
1
0
0
0
0
0
0
0
2
2
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.9
WSW
1.1
SW
1.1
SW
0.9
WSW
0.9
SW
1
SW
1.1
SW
1.1
SW
0.9
SW
1
SW
1.1
SW
1.1
SW
1.1
SW
1.8
SW
2.5
SW
2.3
SSW
2
SSW
2
SSW
1.7
SW
1.6
SW
1.3
SW
Period(s) (?)1615141313121110101012121111791111121212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)458509482309241278273244177200309344268792623756903940752678494
Wind
(km/h)
15
SW
25
SSW
25
S
20
S
10
S
25
S
15
ESE
10
SE
25
S
20
SSE
10
S
20
S
25
SW
30
SW
40
SW
30
SSW
25
S
25
S
20
ESE
20
N
30
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononcross-
on		cross-
on		cross-
on		cross-
on		cross-
off		crosscross-
on		crosscross-
on		cross-
on		ononononcross-
on		cross-
on		cross-
off		cross-
off		cross-
on
High Tide
/ height (m)
6:23AM
1.38
7:53PM
1.31
7:06AM
1.34
8:59PM
1.27
8:00AM
1.28
10:14PM
1.25
9:09AM
1.21
11:37PM
1.26
10:32AM
1.17
12:51AM
1.31
12:01PM
1.17
1:49AM
1.37
1:22PM
1.22
Low Tide
/ height (m)
12:35AM
0.57
1:09PM
0.12
1:24AM
0.68
2:02PM
0.13
2:24AM
0.77
3:04PM
0.16
3:41AM
0.82
4:16PM
0.19
5:15AM
0.80
5:35PM
0.19
6:49AM
0.71
6:51PM
0.18
7:54AM
0.57
7:55PM
0.16
Wednesday
28
Thursday
29
Friday
30
Saturday
31
Sunday
01
Monday
02
Tue
03
Sunrise-6:28--6:28--6:30--6:31--6:31--6:33--6:35-
Sunset--8:38--8:37--8:37--8:36--8:35--8:35--8:34
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
cloud
part cloud
clear
cloud
part cloud
part cloud
clear
clear
clear
Rain (mm)
---------------------
Temp. °C281717161617191919181920191716151415141723
Feels °C (?)2615131215141820171619181711766981320
  • 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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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:
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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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