Portsea Back Beach Surf Break

Lat Long: 38.33° S 144.69° E

Portsea Back Beach 48 hour detailed Surf Forecast

Issued: 9 pm 23 Jul 2026 (local time)

Forecast update in  hr  min

Today's Portsea Back Beach sea temperature is
13.8° C
0.6° 

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 (24 Jul):

  • Morning surf: Morning surf (24 Jul, local time) - 13ft (4.0m), 15s period with SW swell.
  • Afternoon surf: Afternoon surf (24 Jul, local time) - 11ft (3.5m), 15s period with SW swell.
  • Evening surf: Evening surf (24 Jul, local time) - 10ft (3.0m), 14s period with SW swell.

The current surf forecast for Portsea Back Beach at 3AM is: 4.0m 16s primary swell from a Southwest direction and 0.9m 16s secondary swell from a South-southwest direction (forecast issued at 09:00pm July 23). The wind direction is predicted to be cross-onshore.

Time (AEST) & DateWave HeightWave Period
Morning (24 Jul)13ft (4.0m)15s
Afternoon (24 Jul)11ft (3.5m)15s
Evening (24 Jul)10ft (3.0m)14s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Fri night. Very mild (max 15°C on Sun afternoon, min 9°C on Thu night). Mainly fresh winds.

Thu
23
Friday
24
Saturday
25
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
0
0
0
0
0
0
0
0
0
0
0
0
0
2
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)
3.5
SW
14
4
SW
15
4
SW
16
4
SW
16
4
SW
16
4
SW
15
3.5
SW
15
3.5
SW
15
3.5
SW
14
3
SW
14
3
SW
13
3.5
SW
12
3.5
SW
12
3.5
SW
12
3
SW
12
3
SW
12
2.5
SW
12
2.5
WSW
12
Wave Graph
Metric surfscale
Energy kJ
4974
6782
7933
8201
7674
6781
5785
5187
5140
3606
3357
3627
3368
3140
2831
2408
2020
1989
Wind (km/h)
35
W
35
W
35
WSW
30
W
25
W
25
W
30
W
35
W
35
W
35
WNW
35
WNW
30
W
25
W
25
W
25
W
20
W
25
WNW
30
W
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
5:51PM1.45m
7:05AM1.33m
6:24PM1.39m
7:57AM1.29m
7:00PM1.33m
Low Tide
00:29AM0.33m
12:35PM0.77m
1:11AM0.35m
1:20PM0.85m
clear
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
light rain
light rain
cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:30
7:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:24
5:25
 mm
1
1
Temp °C
10
9
10
10
10
10
11
12
11
11
11
12
12
12
14
14
12
12
Feels °C
2
1
1
3
3
4
4
4
3
3
4
6
7
6
9
9
6
6
  • 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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