Portsea Back Beach surf break

Portsea Back Beach surfForecast / VIC – Mornington Peninsula / Australia

information circle48hr Weather and Surf, issued 10 pm Saturday 21 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
18.6° 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 4AM is: 1.9m 14s primary swell from a Southwest direction and 0.4m 14s secondary swell from a South-southwest direction (forecast issued at 10:00pm March 21). The wind direction is predicted to be cross-offshore and the swell rating is 4.

Time (AEDT) & DateWave HeightWave Period
Morning (22 Mar)6ft (1.8m)14s
Afternoon (22 Mar)5ft (1.6m)14s
Evening (22 Mar)4.5ft (1.4m)13s

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


Updates in  hr  min  s Forecast update imminent
Sat
21
Sunday
22
Monday
23
Tuesday
24
8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM
Rating
(10 max)
2
3
4
4
4
4
3
2
0
2
2
3
2
2
0
0
0
0
2
3
4
3
1
1
Swell
Height Map
Wave Height (m) & direction (?)
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
1.4
SW
1.3
SW
1.3
SW
1.2
SW
1.1
SW
1.1
SW
1.2
SW
1.2
SW
1.2
SW
1.2
SW
1.3
SW
1.6
SW
1.8
SW
1.8
SW
1.7
SW
Period(s) (?)141415141414141313131313131212121312121616141414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1484160215261484135511239617786836735455374593923804374594234037631140127312201029
Wind
(km/h)
20
SE
15
SE
10
E
10
ENE
5
NNW
10
N
5
NE
10
SE
15
S
10
SE
10
SSE
5
SE
5
SSE
0
SE
15
SSE
20
SSE
20
SE
15
SE
10
E
5
ENE
0
NW
10
SSW
20
SSW
20
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
off
offglasscross-
off
glasscrosscross-
on
crosscross-
on
glassglassglasscross-
on
cross-
on
crosscrosscross-
off
offglassoncross-
on
cross-
on
High Tide
/ height (m)
2:34AM
1.34
3:22PM
1.50
3:10AM
1.40
4:06PM
1.56
3:46AM
1.43
4:50PM
1.58
Low Tide
/ height (m)
8:44PM
0.42
8:53AM
0.19
9:26PM
0.43
9:33AM
0.10
10:06PM
0.47
10:13AM
0.05
Sat
21
Sunday
22
Monday
23
Tuesday
24
Sunrise----7:24-------7:26-------7:26---
Sunset-------7:30-------7:29-------7:27
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
cloud
clear
clear
clear
clear
clear
clear
clear
cloud
Rain (mm)
------------------------
Temp. °C171717161618222421201918181920191819181718191918
Feels °C (?)151617161718232319191919192019161517171719191716
  • 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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