Marengo surfForecast / VIC – Cape Otway / Australia

information circle16 Day Weather and Surf, issued 3 pm Wednesday 20 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
15.9° 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 Thursday (May 21) at 1AM. The primary swell is predicted to be 1.1m and 12s period with a secondary swell of 0.8m and 16s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Marengo in the next 16 days are 1.7m 16s and forecast to arrive on Friday (May 22) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Sunday (May 24) at 1AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Thu 21st May)3.5ft (1.1m) 12s
Best Surf 4PM (Wed 27th May)5ft (1.6m) 15s
Most Powerful10PM (Fri 22nd May)5.5ft (1.7m) 16s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 16°C on Sat morning, min 10°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Sun afternoon. Very mild (max 17°C on Sat afternoon, min 9°C on Mon night). Wind will be generally light.

Wed
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
2
3
3
3
1
1
1
2
2
0
2
0
0
0
1
1
1
3
3
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)
1.8
SW
10
1.1
SW
12
1.5
SW
14
1.6
SW
14
0.8
SW
14
0.9
SW
12
1.3
SW
15
1.7
SW
15
1.4
SW
14
0.9
SW
14
0.9
SW
13
0.6
SSW
12
0.6
WSW
11
0.5
SW
10
2.2
SW
9
1.4
S
7
0.8
SW
15
1.5
SSW
14
1.4
SW
14
1.1
SW
14
1.3
SW
14
Wave Graph
Metric surfscale
Energy kJ
626
361
911
965
257
232
757
1254
825
272
277
98
87
49
695
215
305
857
661
507
706
Wind (km/h)
20
SW
10
WSW
10
WSW
5
SW
5
N
10
NE
15
ENE
10
NNE
10
NNE
10
NE
15
NNW
15
NW
20
SW
20
WSW
25
SSE
15
S
5
SSE
5
W
15
WSW
10
NW
15
WNW
cross-off
off
off
cross-off
cross
cross-on
cross-on
cross
cross
cross-on
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-on
glassy
cross-off
cross-off
cross-off
High Tide
3:23AM2.54m
2:55PM1.85m
4:05AM2.41m
3:48PM1.79m
4:48AM2.25m
4:48PM1.70m
5:34AM2.07m
6:03PM1.61m
6:24AM1.89m
7:38PM1.60m
7:22AM1.72m
9:12PM1.68m
8:29AM1.60m
Low Tide
8:29PM-0.04m
9:36AM0.77m
9:15PM0.07m
10:20AM0.73m
10:01PM0.25m
11:09AM0.70m
10:51PM0.49m
12:03PM0.67m
11:50PM0.74m
1:07PM0.64m
1:10AM0.97m
2:17PM0.59m
3:02AM1.10m
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
cloud
part cloud
cloud
light rain
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:24
7:24
7:26
7:26
7:28
7:28
7:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:17
5:17
5:16
5:15
5:15
5:15
5:15
5:14
2
Temp °C
14
12
14
13
11
14
14
12
16
17
14
15
12
12
13
13
10
11
11
10
15
10
10
12
12
10
11
11
9
13
14
11
11
8
7
7
9
7
8
8
7
12
Swell 1
Height (m)
Direction
Period (s)
1.2
SW
10
1.1
SW
12
1.5
SW
14
1.6
SW
14
0.9
SSW
11
0.9
SW
12
1.3
SW
15
1.7
SW
15
1.4
SW
14
0.9
SW
14
0.9
SW
13
0.6
SSW
12
0.6
WSW
11
0.5
SW
10
1.7
SSW
8
1.4
S
7
1.3
S
7
1.5
SSW
14
1.4
SW
14
1.1
SW
14
1.3
SW
14
Energy kJ
296
361
911
965
223
232
757
1254
825
272
277
91
87
49
376
215
181
857
661
507
706
Swell 2
Height (m)
Direction
Period (s)
0.8
SW
16
0.8
SW
16
0.2
ESE
11
0.2
ESE
11
0.8
SW
14
0.6
SW
15
0.2
E
10
0.2
E
10
0.3
E
4
0.7
SW
13
0.4
ENE
4
0.6
WSW
12
0.4
SSW
11
0.4
SW
12
0.4
SSW
13
0.4
SW
16
0.8
SW
15
0.3
ESE
6
0.4
ESE
6
0.2
ESE
5
0.2
ESE
11
Energy kJ
310
352
12
11
257
139
8
8
3
178
6
98
48
35
54
94
305
6
12
2
12
Swell 3
Height (m)
Direction
Period (s)
0.2
ESE
11
0.2
ESE
11
0.2
ESE
11
0.2
ESE
10
0.1
E
9
0.3
E
4
0.3
SW
12
0.2
ESE
11
0.3
ESE
10
0.3
ESE
11
0.3
ESE
11
0.4
SSW
11
0.3
ESE
12
0.3
ESE
11
0.2
ESE
12
0.2
ESE
11
0.1
S
14
Energy kJ
12
11
11
10
2
3
23
11
20
24
23
42
27
25
13
12
4
Wind waves
Height (m)
Direction
Period (s)
1.8
SW
10
0.2
E
14
0.4
NE
4
0.3
NNE
4
0.2
NNE
4
0.3
W
2
2.2
SW
9
Energy kJ
626
16
5
3
1
1
695
Nearest Offshore or Glassy
Rating
(10 max)
4
3
3
3
4
4
4
5
4
4
2
1
2
1
3
1
4
3
3
2
3
Distance (km)
182
0
0
0
18
18
18
18
18
18
0
20
38
37
620
563
18
0
0
0
2
Best forecast wave conditions in Cape Otway
Rating
(10 max)
3
4
3
3
3
3
4
4
3
2
2
2
2
3
3
3
3
Best forecast wave conditions in Australia
Rating
(10 max)
4
4
4
4
4
4
7
5
5
4
4
4
4
4
4
4
4
4
3
4
4
Header Global
Rating
(10 max)
4
4
5
4
5
5
7
6
5
5
8
5
5
5
4
4
4
4
4
4
4
  • 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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