Portsea Back Beach Surf Break

Lat Long: 38.33° S 144.69° E

Portsea Back Beach 48 hour detailed Surf Forecast

Issued: 10 pm 04 Oct 2026 (local time)

Forecast update in  hr  min

Today's Portsea Back Beach sea temperature is
14.1°C
1.1° 

Portsea Back Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Portsea Back Beach today (05 Oct):

  • Morning surf: Morning surf (05 Oct, local time) - 7ft (2.1m), 16s period with SW swell.
  • Afternoon surf: Afternoon surf (05 Oct, local time) - 6.5ft (2.0m), 16s period with SW swell.
  • Evening surf: Evening surf (05 Oct, local time) - 6ft (1.9m), 16s period with SW swell.

The current surf forecast for Portsea Back Beach at 5AM is: 2.1m 16s primary swell from a Southwest direction and 0.7m 6s secondary swell from a South-southwest direction (forecast issued at 10:00pm October 04). The wind direction is predicted to be cross-onshore.

Time (AEDT) & DateWave HeightWave Period
Morning (05 Oct)7ft (2.1m)16s
Afternoon (05 Oct)6.5ft (2.0m)16s
Evening (05 Oct)6ft (1.9m)16s

Table - waves today at Portsea Back Beach. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Very mild (max 15°C on Mon afternoon, min 9°C on Sun night). Winds increasing (calm on Mon afternoon, strong winds from the SW by Tue afternoon).

Sun
4
Monday
5
Tuesday
6
9 PM
12 AM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
1
1
2
3
3
3
4
4
2
4
2
1
0
0
0
0
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)
2.2
SW
16
2.1
SW
16
2.1
SW
16
2.1
SW
16
2
SW
16
2.1
SW
16
2.1
SW
16
1.9
SW
16
1.9
SW
16
1.9
SW
16
1.8
SW
16
1.8
SW
16
1.7
SW
16
1.8
SW
16
1.8
SW
16
3.5
SW
15
3.5
SW
15
3.5
SW
14
Wave Graph
Metric surfscale
Energy kJ
2295
1983
2035
2061
1953
2061
2061
1764
1742
1742
1685
1552
1420
1532
1634
5672
5438
4493
Wind (km/h)
20
SSW
15
SW
15
WSW
10
W
10
WNW
10
NW
5
NE
0
NNW
10
S
5
NNW
20
NW
25
NW
35
NW
30
W
40
SW
45
SW
35
SW
30
S
Wind State
cross-on
on
on
cross-on
cross
cross
off
glassy
cross-on
glassy
cross
cross
cross
cross-on
on
on
on
cross-on
High Tide
5:15PM1.37m
6:40AM1.40m
6:07PM1.31m
7:36AM1.31m
7:13PM1.23m
Low Tide
11:55PM0.13m
12:28PM0.63m
00:49AM0.22m
1:26PM0.66m
clear
part cloud
cloud
cloud
part cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
cloud
cloud
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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6:50
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6:50
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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7:28
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7:29
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 mm
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Temp °C
11
11
10
9
9
11
13
15
13
13
13
12
12
13
12
12
12
12
Feels °C
6
7
7
7
7
8
11
14
10
12
10
7
5
7
3
2
4
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

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.


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