Portsea Back Beach surf break

Portsea Back Beach surfForecast / VIC – Mornington Peninsula / Australia

information circle48hr Weather and Surf, issued 10 am Tuesday 13 Jan 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
17.6° C
(Which is slightly warmer than usual)


How big are the waves at Portsea Back Beach today?

The current surf forecast for Portsea Back Beach at 4PM is: 1.1m 10s primary swell from a Southwest direction and 0.6m 16s secondary swell from a Southwest direction, 0.7m 4s secondary swell from a South direction (forecast issued at 10:00am January 13). The wind direction is predicted to be cross-onshore.

Time (AEDT) & DateWave HeightWave Period
Morning (13 Jan)3.5ft (1.0m)10s
Afternoon (13 Jan)3.5ft (1.1m)10s
Evening (13 Jan)3ft (0.9m)16s

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

Updates in  hr  min  s Forecast update imminent
Tuesday
13
Wednesday
14
Thursday
15
Fri
16
8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM
Rating
(10 max)
0
0
0
0
0
0
0
1
2
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1
SW
1.1
SW
1.1
SW
0.7
SW
0.9
SW
1.1
SW
1.5
SW
1.5
SW
1.5
SW
1.5
SW
1.7
SSW
1.6
SW
1.4
SW
1.4
SW
1.3
SW
1.3
SW
1.2
SW
1.2
SW
2.4
SE
3
SE
3.5
SE
3
SE
2.5
SE
3
SE
Period(s) (?)101010161615141414141414131313131313788888
Wave
Graph
(?)Metric surfscale
Energy kJ (?)192226251264406485899874862874108091171169060955248047360488515831032864866
Wind
(km/h)
20
SSE
20
SSE
25
S
25
S
25
S
25
SSE
25
S
20
S
20
SSE
20
SSE
25
S
30
SSE
35
SE
30
SE
25
SE
30
SE
25
SE
35
SSE
40
SSE
50
SSE
45
SSE
45
SE
45
SE
45
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
on
cross-
on
cross-
on
crosscrosscrosscrosscrosscrosscross-
on
cross-
on
crosscrosscrosscross
High Tide
/ height (m)
7:00AM
1.34
8:18PM
1.20
7:31AM
1.28
9:11PM
1.18
8:08AM
1.22
10:11PM
1.17
Low Tide
/ height (m)
1:41PM
0.28
1:43AM
0.72
2:22PM
0.29
2:30AM
0.79
3:06PM
0.30
3:29AM
0.85
Tuesday
13
Wednesday
14
Thursday
15
Fri
16
Sunrise6:11-------6:11-------6:13-------
Sunset----8:46-------8:45-------8:45---
cloud
cloud
part cloud
cloud
part cloud
clear
clear
part cloud
cloud
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
thunderstorm
light rain
light rain
light rain
light rain
rain showers
cloud
Rain (mm)
-----------------114321-
Temp. °C161616161515151515171818181717171717171616161716
Feels °C (?)13131212101112121214141313131414141211898108
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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