Portsea Back Beach surf break

Portsea Back Beach surfForecast / VIC – Mornington Peninsula / Australia

information circle48hr Weather and Surf, issued 9 am Thursday 09 Apr 2026 AEST
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
18.0° C
(Which is 1.2°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 4PM is: 1.3m 13s primary swell from a Southwest direction and 0.1m 9s secondary swell from a Southeast direction (forecast issued at 09:00am April 09). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (AEST) & DateWave HeightWave Period
Morning (09 Apr)4.5ft (1.4m)13s
Afternoon (09 Apr)4.5ft (1.3m)13s
Evening (09 Apr)4.5ft (1.3m)13s

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


Updates in  hr  min  s Forecast update imminent
Thursday
09
Friday
10
Saturday
11
Sun
12
7AM10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM4AM
Rating
(10 max)
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.4
SW
1.3
SW
1.3
SW
1.3
SW
1.3
SW
1.3
SW
1.3
SW
2.1
WSW
2.5
WSW
2.3
SW
2.3
SW
2.5
WSW
2.5
SW
3
WSW
2.5
WSW
2.5
WSW
2.4
SW
2.5
SW
3.5
WSW
4
SW
4
SW
4
SW
4
SW
4.5
SW
Period(s) (?)141313131313121212121212121212121212131313141414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)72562861860960052750213231979142013961880190323811913182515472001400052935386621670297689
Wind
(km/h)
35
N
40
NNW
35
NNW
40
NNW
30
NW
30
NW
35
NW
50
WSW
30
WNW
40
NW
45
WNW
40
WNW
35
WNW
40
W
35
WNW
35
WNW
35
WNW
45
WNW
45
W
45
W
40
W
35
WNW
40
W
40
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
crosscrosscrossoncrosscrosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscrosscrosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
High Tide
/ height (m)
4:48PM
1.46
4:10AM
1.29
5:22PM
1.40
4:41AM
1.24
6:00PM
1.33
Low Tide
/ height (m)
10:08AM
0.20
10:42PM
0.63
10:40AM
0.24
11:16PM
0.66
11:13AM
0.29
11:53PM
0.68
Thursday
09
Friday
10
Saturday
11
Sun
12
Sunrise6:41-------6:41-------6:43-------
Sunset---6:02-------6:01-------6:00----
part cloud
clear
part cloud
thunderstorm
mod rain
mod rain
clear
light rain
cloud
part cloud
cloud
cloud
cloud
light rain
rain showers
clear
clear
cloud
rain showers
light rain
clear
light rain
rain showers
light rain
Rain (mm)
---199-1-----21---11-111
Temp. °C182124231920181412141414131111101012131312111112
Feels °C (?)1215181715161145545633222333334
  • 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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