Marengo surfForecast / VIC – Cape Otway / Australia

information circle16 Day Weather and Surf, issued 3 pm Friday 15 May 2026 AEST
Forecast update in hr  min  s Forecast update imminent
Marengo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Marengo sea temperature is
16.0° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Marengo this week:

The surf forecast for Marengo over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (May 17) at 1AM. The primary swell is predicted to be 1.4m and 16s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Marengo in the next 16 days are 2.3m 14s and forecast to arrive on Friday (May 22) at 4PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Thursday (May 21) at 7PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Sun 17th May)4.5ft (1.4m) 16s
Best Surf 1PM (Fri 22nd May)7ft (2.1m) 14s
Most Powerful 4PM (Fri 22nd May)7.5ft (2.3m) 14s

Table - best surf conditions forecast for Marengo over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 8mm), mostly falling on Sat afternoon. Warm (max 21°C on Fri afternoon, min 13°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 14mm), heaviest on Tue night. Very mild (max 15°C on Mon afternoon, min 11°C on Wed night). Winds increasing (calm on Mon night, fresh winds from the WSW by Tue night).

Fri
15
Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
1
0
0
0
3
2
1
2
2
2
1
1
1
1
0
1
2
2
2
2
2
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
WSW
16
0.8
WSW
14
0.7
WSW
14
0.8
WSW
14
1.4
WSW
16
1.3
WSW
15
1.2
WSW
14
1.2
SW
14
1.1
SW
13
1
SW
12
0.9
SW
12
0.6
SW
12
1
SW
11
1.6
SW
11
0.7
SW
17
0.8
SW
16
0.8
SW
16
1.2
SW
14
1.3
SW
14
1
SW
13
1.7
SSW
14
Wave Graph
Metric surfscale
Energy kJ
519
268
161
246
981
711
538
526
424
292
244
112
241
553
280
310
352
598
650
320
1005
Wind (km/h)
10
NNE
15
NNE
15
NNE
20
N
10
NNW
5
N
5
SE
5
NNW
5
NW
5
S
0
NE
25
W
30
WSW
35
WSW
25
SW
20
WSW
10
WNW
10
WNW
15
W
10
WNW
5
SE
cross
cross-on
cross-on
cross
cross-off
cross
cross-on
cross-off
glassy
glassy
glassy
off
off
cross-off
cross-off
cross-off
off
off
off
off
cross-on
High Tide
11:56PM2.18m
11:07AM1.58m
00:39AM2.39m
11:53AM1.67m
1:20AM2.54m
12:37PM1.76m
2:01AM2.61m
1:22PM1.83m
2:42AM2.61m
2:07PM1.86m
3:23AM2.54m
2:55PM1.85m
4:05AM2.41m
Low Tide
4:49PM0.43m
6:18AM1.03m
5:34PM0.25m
7:00AM0.96m
6:17PM0.09m
7:38AM0.91m
7:01PM-0.02m
8:16AM0.85m
7:45PM-0.07m
8:55AM0.81m
8:29PM-0.04m
9:36AM0.77m
9:15PM0.07m
10:20AM0.73m
part cloud
cloud
cloud
light rain
rain showers
part cloud
cloud
light rain
part cloud
rain showers
rain showers
light rain
light rain
mod rain
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:20
7:20
7:22
7:22
7:24
7:24
7:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:22
5:22
5:21
5:20
5:19
5:17
5:17
5:16
4
2
2
1
1
1
2
9
Temp °C
21
18
19
16
15
17
16
15
15
15
14
14
13
13
14
13
13
15
16
13
14
19
15
16
13
13
17
16
15
15
15
14
10
7
6
9
9
11
11
13
11
13
Swell 1
Height (m)
Direction
Period (s)
1
WSW
16
0.8
WSW
14
0.7
WSW
14
0.8
WSW
14
1.4
WSW
16
1.3
WSW
15
1.2
WSW
14
1.2
SW
14
1.1
SW
13
1
SW
12
0.9
SW
12
0.6
SW
12
1
SW
11
1
SW
11
0.9
SSW
10
0.9
SW
10
0.9
SW
12
1.2
SW
14
1.3
SW
14
1
SW
13
1.7
SSW
14
Energy kJ
519
268
161
246
981
711
538
526
424
292
244
112
241
233
157
177
232
598
650
320
1005
Swell 2
Height (m)
Direction
Period (s)
0.3
E
4
0.4
E
4
0.4
E
4
0.4
ENE
4
0.3
E
7
0.3
ESE
8
0.3
ESE
8
0.3
ESE
8
0.3
ESE
9
0.3
ESE
9
0.3
E
9
0.4
WSW
12
0.4
SW
18
0.6
SW
18
0.7
SW
17
0.8
SW
16
0.8
SW
16
0.2
ESE
10
0.2
ESE
10
0.6
SSW
6
0.3
SW
12
Energy kJ
3
6
5
6
8
11
12
14
15
16
15
56
112
197
280
310
352
11
10
26
23
Swell 3
Height (m)
Direction
Period (s)
0.1
S
10
0.2
ESE
7
0.1
SW
21
0.1
SW
21
0.3
SW
20
0.2
ESE
9
0.2
E
9
0.4
WSW
12
0.2
ESE
10
0.2
ESE
11
0.1
S
14
0.2
ESE
10
0.2
ESE
10
Energy kJ
2
5
18
17
60
8
6
54
10
11
4
11
11
Wind waves
Height (m)
Direction
Period (s)
0.7
NE
4
0.4
ENE
4
0.6
ENE
4
0.7
WSW
4
0.9
SW
4
1.6
SW
11
Energy kJ
16
5
10
18
32
553
Nearest Offshore or Glassy
Rating
(10 max)
4
4
3
1
3
3
3
2
2
2
1
1
1
3
3
1
2
2
2
2
5
Distance (km)
18
18
21
20
0
2
51
0
0
0
0
0
59
583
586
59
0
0
0
0
18
Best forecast wave conditions in Cape Otway
Rating
(10 max)
3
2
2
2
4
4
3
3
3
2
1
3
3
3
3
Best forecast wave conditions in Australia
Rating
(10 max)
4
4
3
4
5
5
4
4
4
4
4
4
4
4
4
4
4
4
4
4
9
Header Global
Rating
(10 max)
6
5
5
4
5
5
8
5
4
5
4
4
5
4
4
4
4
4
4
4
9
  • 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 Marengo Surf forecast

The above surf forecast table for Marengo provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Marengo can be found by selecting the local surf guide option on the grey menu. Our Marengo 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 (Marengo) 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 Marengo 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.

Marengo is 93 km (58 miles) from the city of Geelong West. If you plan a holiday in Cape Otway, look for hotels and other accommodation in Geelong West. Geelong West has rooms for a wide range of budgets as well as car hire and transport links.

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