Portsea Back Beach Surf Break

Lat Long: 38.33° S 144.69° E

Portsea Back Beach 48 hour detailed Surf Forecast

Issued: 9 am 11 Jul 2026 (local time)

Forecast update in  hr  min

Today's Portsea Back Beach sea temperature is
13.7° 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 (11 Jul):

  • Morning surf: Morning surf (11 Jul, local time) - 3.5ft (1.1m), 14s period with SW swell.
  • Afternoon surf: Afternoon surf (11 Jul, local time) - 3.5ft (1.0m), 14s period with SW swell.
  • Evening surf: Evening surf (11 Jul, local time) - 3.5ft (1.0m), 14s period with SW swell.

The current surf forecast for Portsea Back Beach at 3PM is: 1.0m 14s primary swell from a Southwest direction (forecast issued at 09:00am July 11). An open ocean swell of 1.3m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (AEST) & DateWave HeightWave Period
Morning (11 Jul)3.5ft (1.1m)14s
Afternoon (11 Jul)3.5ft (1.0m)14s
Evening (11 Jul)3.5ft (1.0m)14s

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


Short Range Forecast

Moderate rain (total 18mm), heaviest on Sat afternoon. Very mild (max 14°C on Mon morning, min 8°C on Sat night). Winds decreasing (strong winds from the NNE on Sat afternoon, moderate winds from the WNW by Mon night).

Saturday
11
Sunday
12
Monday
13
Tue
14
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
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
0
0
0
0
0
!
!
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
SW
14
1.1
SW
14
1
SW
14
1
SW
14
0.9
SW
14
1.1
SW
13
1.2
WSW
13
2.5
WSW
12
3.5
WSW
12
2.5
SW
13
3
WSW
13
3.5
WSW
12
3
WSW
13
3.5
WSW
13
3
SW
13
3
SW
14
3.5
SW
15
3.5
SW
15
3.5
SW
16
3.5
SW
16
3.5
SW
16
4
SW
16
4.5
WSW
15
4.5
WSW
15
Wave Graph
Metric surfscale
Energy kJ
529
476
401
390
272
412
430
1754
3120
2207
2929
3266
3241
3532
3242
3717
4669
5255
5926
5926
6490
7370
10050
8772
Wind (km/h)
35
NNE
40
N
40
N
50
NNE
45
NW
35
WNW
50
WNW
45
WNW
40
WNW
50
NW
40
WNW
40
WNW
40
WNW
30
WNW
35
WNW
40
WNW
35
NW
40
NW
40
NW
40
NW
40
WNW
40
WNW
35
WNW
30
W
Wind State
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross-on
cross
cross
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
High Tide
7:52AM1.35m
7:01PM1.39m
9:01AM1.36m
7:59PM1.36m
10:15AM1.39m
9:07PM1.33m
Low Tide
1:20PM0.83m
1:59AM0.27m
2:27PM0.89m
3:02AM0.25m
3:45PM0.91m
part cloud
cloud
part cloud
cloud
light rain
light rain
cloud
light rain
cloud
cloud
light rain
light rain
light rain
cloud
rain showers
cloud
cloud
part cloud
cloud
cloud
cloud
light rain
light rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:37
7:35
7:35
7:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:15
5:16
5:16
5:17
 mm
5
3
3
1
1
1
1
1
1
1
Temp °C
10
11
13
13
11
9
8
10
9
11
11
12
12
11
11
12
12
13
14
14
14
13
12
11
Feels °C
2
3
5
3
2
1
-3
0
0
1
2
4
3
4
3
3
4
4
6
6
6
5
5
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 

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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.


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