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Surf Forecasts:

Portsea Back Beach surf break

Portsea Back Beach surfForecast / VIC – Mornington Peninsula / Australia

information circle48hr Weather and Surf, issued 10 pm Friday 20 Mar 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
18.5° C
 (Which is 1.1°C warmer than normal for this time of year)

How big are the waves at Portsea Back Beach today?

The current surf forecast for Portsea Back Beach at 2AM is: 1.6m 14s primary swell from a Southwest direction (forecast issued at 10:00pm March 20). The wind direction is predicted to be cross-shore.

Time (AEDT) & DateWave HeightWave Period
Morning (21 Mar)4.5ft (1.4m)14s
Afternoon (21 Mar)5ft (1.6m)14s
Evening (21 Mar)6ft (1.9m)14s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Fri
20
Saturday
21
Sunday
22
Monday
23
8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM
Rating
(10 max)
3
2
2
2
3
3
0
0
2
3
4
4
4
3
3
2
2
3
2
3
2
2
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.7
SW
1.6
SW
1.6
SW
1.4
SW
1.4
SW
1.4
SW
1.5
SW
1.8
SW
1.9
SW
2
SW
1.9
SW
1.9
SW
1.8
SW
1.7
SW
1.6
SW
1.5
SW
1.4
SW
1.3
SW
1.3
SW
1.3
SW
1.2
SW
1.1
SW
1.1
SW
1.2
SW
Period(s) (?)131314141413131414141514141414131313131313121212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)10149338917807807047781220148416021526148413551123961778683609545537459386380437
Wind
(km/h)
15
SSE
10
SE
10
SE
10
SE
10
SE
10
ESE
15
SSE
20
SSE
20
SE
15
SE
10
ESE
5
E
5
NE
5
NW
0
ESE
10
SE
15
SE
5
SE
5
SE
5
S
5
SSE
5
NE
15
S
20
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscrosscross-
off		cross-
off		cross-
on		cross-
on		crosscrosscross-
off		cross-
off		glasscrossglasscrosscrossglasscrossglassglassglasscross-
on		cross-
on
High Tide
/ height (m)
1:58AM
1.28
2:35PM
1.41
2:34AM
1.34
3:22PM
1.50
3:10AM
1.40
4:06PM
1.56
Low Tide
/ height (m)
7:58PM
0.42
8:13AM
0.31
8:44PM
0.42
8:53AM
0.19
9:26PM
0.43
9:33AM
0.10
Fri
20
Saturday
21
Sunday
22
Monday
23
Sunrise----7:24-------7:24-------7:26---
Sunset-------7:31-------7:30-------7:29
clear
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
Rain (mm)
------------------------
Temp. °C171716161617181817171715151721232320201918192019
Feels °C (?)151615151516161515151614151721212019191918191815
  • 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

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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:
surf-forecast.com

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