Portsea Back Beach Surf Break

Lat Long: 38.33° S 144.69° E

Portsea Back Beach 48 hour detailed Surf Forecast

Issued: 9 pm 05 Aug 2026 (local time)

Forecast update in  hr  min

Today's Portsea Back Beach sea temperature is
13.2° C
0.3° 

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 (06 Aug):

  • Morning surf: Morning surf (06 Aug, local time) - 3.5ft (1.0m), 12s period with SW swell.
  • Afternoon surf: Afternoon surf (06 Aug, local time) - 3.5ft (1.1m), 16s period with SW swell.
  • Evening surf: Evening surf (06 Aug, local time) - 3.5ft (1.1m), 17s period with SW swell.

The current surf forecast for Portsea Back Beach at 3AM is: 1.3m 13s primary swell from a Southwest direction and 0.6m 17s secondary swell from a Southwest direction, 0.8m 5s secondary swell from a Southwest direction (forecast issued at 09:00pm August 05). The wind direction is predicted to be cross-shore.

Time (AEST) & DateWave HeightWave Period
Morning (06 Aug)3.5ft (1.0m)12s
Afternoon (06 Aug)3.5ft (1.1m)16s
Evening (06 Aug)3.5ft (1.1m)17s

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


Short Range Forecast

Mostly dry. Very mild (max 15°C on Thu afternoon, min 10°C on Thu morning). Winds increasing (light winds from the NE on Fri afternoon, fresh winds from the N by Sat morning).

Wed
5
Thursday
6
Friday
7
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
0
0
1
3
2
0
1
2
0
2
0
1
1
3
4
4
4
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SW
14
1.1
SW
13
1.3
SW
13
1.1
SW
12
1.1
SW
12
1
SW
12
0.7
SW
16
1.1
SW
16
1.1
SW
16
1.2
SW
17
0.9
SW
18
1.1
SW
17
1.6
SW
15
1.6
SW
15
1.7
SW
15
1.6
SW
15
1.5
SW
14
1.4
SW
14
Wave Graph
Metric surfscale
Energy kJ
308
444
600
392
335
292
260
558
560
841
522
671
1203
1235
1359
1155
915
742
Wind (km/h)
25
SW
15
WSW
15
W
10
NW
15
NNW
15
NW
15
NW
15
WNW
20
WNW
20
WNW
20
W
20
W
15
W
10
WNW
10
N
15
NE
10
NE
15
NNW
Wind State
on
cross-on
cross-on
cross-off
cross-off
cross
cross
cross
cross-on
cross
cross-on
cross-on
cross-on
cross
cross-off
off
off
cross-off
High Tide
4:42AM1.41m
4:27PM1.45m
5:30AM1.40m
5:00PM1.44m
Low Tide
10:21PM0.27m
10:32AM0.54m
10:59PM0.23m
11:12AM0.63m
light rain
cloud
clear
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
clear
clear
cloud
cloud
clear
clear
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:18
7:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:36
5:37
 mm
1
Temp °C
12
11
11
11
11
10
13
15
12
12
11
11
11
11
12
14
15
13
Feels °C
7
7
7
7
7
5
9
11
7
8
7
7
7
8
9
10
12
9
  • 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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