Portsea Back Beach surf break

Portsea Back Beach surfForecast / VIC – Mornington Peninsula / Australia

information circle16 Day Weather and Surf, issued 3 pm Monday 01 Jun 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
15.8° C
(Which is 1.0°C warmer than normal for this time of year)

Portsea Back Beach surf forecast from 1 Jun 2026:

  • Best quality surf: Saturday 6 Jun, 7PM (local time) - 8ft (2.5m), 20s period, SW swell with glassy winds.
  • Most powerful swell: Sunday 7 Jun, 1AM (local time) - 10ft (3.0m), 18s period, SW swell with 6,167 kJ wave energy.
  • Next surfable swell (1★+): Saturday 6 Jun, 7PM (local time) - 8ft (2.5m), 20s period with SW swell.

Best Forecast Surf Conditions for Portsea Back Beach this week:

The surf forecast for Portsea Back Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jun 06) at 7PM. The primary swell is predicted to be 2.5m and 20s period with a secondary swell of 0.9m and 20s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Portsea Back Beach in the next 16 days are 3.0m 18s and forecast to arrive on Sunday (Jun 07) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Tuesday (Jun 02) at 1AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Sat 6th Jun)8ft (2.5m) 20s
Best Surf 7PM (Sat 6th Jun)8ft (2.5m) 20s
Most Powerful 1AM (Sun 7th Jun)10ft (3.0m) 18s

Table - best surf conditions forecast for Portsea Back Beach over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 19mm), heaviest on Mon afternoon. Very mild (max 16°C on Tue afternoon, min 11°C on Mon afternoon). Winds decreasing (near gales from the N on Mon night, moderate winds from the NNW by Tue afternoon).

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Thu afternoon. Very mild (max 15°C on Sat morning, min 10°C on Fri night). Winds decreasing (strong winds from the SSW on Thu afternoon, calm by Sat afternoon).

Mon
1
Tuesday
2
Wednesday
3
Thursday
4
Friday
5
Saturday
6
Sunday
7
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
3
5
4
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
SW
12
1.1
SW
11
0.8
SW
10
0.9
SW
16
0.8
SW
14
1.6
SW
14
3.5
WSW
11
1.9
SW
10
1.4
SW
9
3
SSW
8
2.5
SSW
8
0.8
SW
18
1
SW
16
1.1
SW
15
1
SW
16
0.9
SW
22
3
SW
18
3
SW
17
2.5
SW
16
2.3
SW
16
2.2
SW
16
Wave Graph
Metric surfscale
Energy kJ
687
263
129
416
297
961
2793
652
320
1351
1027
400
498
505
480
788
6167
4414
3193
2506
2295
Wind (km/h)
45
N
55
N
50
N
25
NW
40
NW
50
WNW
50
W
40
WNW
30
WNW
50
SSW
40
SSW
30
SSW
25
SW
20
WNW
25
W
10
W
15
WNW
10
WNW
10
NNE
5
N
25
N
cross-off
cross-off
cross-off
cross
cross
cross
cross-on
cross
cross
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
off
cross-off
cross-off
High Tide
00:01AM1.32m
1:37PM1.57m
00:45AM1.31m
2:15PM1.59m
1:28AM1.30m
2:50PM1.59m
2:09AM1.28m
3:25PM1.57m
2:50AM1.27m
3:58PM1.54m
3:33AM1.26m
4:30PM1.50m
4:18AM1.25m
Low Tide
6:56PM0.81m
6:40AM0.27m
7:40PM0.77m
7:19AM0.25m
8:20PM0.72m
7:58AM0.24m
8:57PM0.69m
8:35AM0.25m
9:33PM0.66m
9:12AM0.29m
10:08PM0.63m
9:49AM0.34m
10:43PM0.60m
10:28AM0.41m
mod rain
light rain
light rain
thunderstorm
light rain
light rain
cloud
cloud
light rain
light rain
cloud
cloud
cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:28
7:28
7:30
7:30
7:31
7:31
7:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:08
5:07
5:07
5:07
5:07
5:07
5:07
5:07
6
4
1
2
3
2
1
3
Temp °C
12
13
14
16
13
13
13
12
14
13
13
12
12
11
15
15
14
14
15
15
14
1
2
6
11
7
3
3
3
8
4
4
5
6
7
10
13
11
12
13
13
8
Swell 1
Height (m)
Direction
Period (s)
1.6
SW
12
1.1
SW
11
0.8
SW
10
0.9
SW
16
0.8
SW
14
1.6
SW
14
0.1
SW
20
1.9
SW
10
1.4
SW
9
0.2
WSW
19
0.6
SW
16
0.8
SW
18
1
SW
16
1.1
SW
15
1
SW
7
1.3
SW
15
3
SW
18
3
SW
17
2.5
SW
16
2.3
SW
16
2.2
SW
16
Energy kJ
687
263
124
416
297
961
15
652
300
35
157
370
498
505
84
788
6167
4414
3193
2506
2295
Swell 2
Height (m)
Direction
Period (s)
0.1
SW
20
0.4
SW
18
0.5
SW
16
0.1
SE
11
0.1
E
10
0.8
SW
14
1.1
SW
12
1.1
SW
11
0.2
NNW
4
0.1
S
16
0.7
SW
12
0.6
SW
11
0.1
SW
26
1
SW
16
1
SW
7
0.9
SSW
18
0.7
SSW
18
0.7
SSW
16
0.5
S
15
0.5
S
16
Energy kJ
15
108
129
4
2
231
319
320
2
5
137
75
26
480
100
528
318
269
121
132
Swell 3
Height (m)
Direction
Period (s)
0.1
E
10
0.1
E
10
0.1
S
16
0.1
E
10
0.1
SW
20
0.2
WSW
18
0.1
S
20
0.5
W
12
0.1
SE
11
0.1
SE
10
0.3
SW
23
0.9
SW
22
Energy kJ
2
2
5
2
15
33
8
77
4
4
86
770
Wind waves
Height (m)
Direction
Period (s)
1.2
N
5
1.9
N
6
1.6
N
6
0.9
NNW
4
1.5
WNW
5
1.6
WNW
5
3.5
WSW
11
1.5
WNW
5
1.1
NW
5
3
SSW
8
2.5
SSW
8
1.9
SSW
7
1.5
SSW
7
1.1
SW
6
0.4
NW
3
1.3
WSW
7
0.4
N
3
Energy kJ
60
222
152
36
110
125
2793
119
49
1351
1027
400
209
100
3
169
3
Nearest Offshore or Glassy
Rating
(10 max)
3
1
2
2
3
4
1
3
2
1
1
1
2
2
2
4
6
5
5
4
4
Distance (km)
63
300
63
25
282
403
489
66
27
500
170
170
31
25
27
17
17
17
0
0
7
Best forecast wave conditions in Mornington Peninsula
Rating
(10 max)
2
2
4
5
5
5
4
4
Best forecast wave conditions in Australia
Rating
(10 max)
4
4
4
4
4
4
4
5
3
3
5
5
5
9
5
9
7
9
8
6
6
Header Global
Rating
(10 max)
4
4
5
5
4
5
5
5
5
4
9
5
5
9
8
9
7
9
8
9
7
  • 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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Information about the Portsea Back Beach Surf forecast

The above surf forecast table for Portsea Back Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Portsea Back Beach can be found by selecting the local surf guide option on the grey menu. Our Portsea Back Beach surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Portsea Back Beach) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Portsea Back Beach may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Portsea Back Beach is 29 km (18 miles) from Geelong. If you plan a holiday in Mornington Peninsula, look for hotels and other accommodation in Geelong. Geelong has rooms for a wide range of budgets as well as car hire and transport links.

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