Marengo Surf Break

Lat Long: 38.78° S 143.67° E

Marengo Surf Forecast and Surf Report

Issued: 9 am 26 Aug 2026 (local time)

Forecast update in  hr  min

Today's Marengo sea temperature is
14.0°C
0.8° 

Marengo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Marengo surf forecast from 26 Aug 2026:

  • Best quality surf: Wednesday 2 Sep, 1AM (local time) - 10ft (3.0m), 14s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 2 Sep, 1AM (local time) - 10ft (3.0m), 14s period, WSW swell with 3,772 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 26 Aug, 7PM (local time) - 3.5ft (1.0m), 11s period with SSW swell.

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 Wednesday (Aug 26) at 7PM. The primary swell is predicted to be 1.0m and 11s period with a secondary swell of 0.8m and 13s. 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 3.0m 14s and forecast to arrive on Wednesday (Sep 02) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Saturday (Aug 29) at 7PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Wed 26th Aug)3.5ft (1.0m) 11s
Best Surf 1AM (Wed 2nd Sep)10ft (3.0m) 14s
Most Powerful 1AM (Wed 2nd Sep)10ft (3.0m) 14s

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


The Lowdown

Alright, folks, Rusty here. Let's have a look at what's coming down the line at Marengo. We've got a slow build, a real sweet spot, and then a serious ramp-up into some heavy-duty stuff.

The start of the run is a little quiet. Wednesday the 26th and Thursday the 27th are showing small waves from 2 to 5 feet, with a cross-off wind keeping the surface clean. It's okay for a log or a foil, but nothing to write home about. The energy is moderate, and it's not really going to get your heart racing.

Then we get our first real standout. Friday morning the 28th of August is solid: a 6 foot SW groundswell with a very long 18-second period, and a light offshore breeze. The combined energy is strong, and that long period means better-shaped, peeling waves. This is for experienced crew only. The water temp is about 57°, which is normal for the season, so bring a decent suit.

Saturday the 29th afternoon is another top session, with a 6 foot swell from the SW, a 14-second period, and a clean offshore wind. The energy is very strong. This is the best of the first week.

Now, mark your calendar for Monday the 31st of August. This is the absolute gem. We’ve got a 7 foot SW groundswell, a 15-second period, and dead flat, glassy conditions. The energy is pumping (2118). This is as good as it gets for an expert surfer. Just be aware, crowds are possible, so be on it early.

As we head into the first week of September, things get big. Swell builds through the 4th and 5th, getting up over 6 feet with fresh offshore winds. But the real heavy stuff hits over the weekend of the 6th and 7th of September. We're looking at an 18 foot swell from the WSW on Sunday the 6th, with a very strong energy reading. This is exceptional surf, but it's for experts only. The wind is strong offshore, making it clean but extremely hard to paddle into. This is chargers' territory, and honestly, the kite crew are going to be having the time of their lives.

We get a bit of a breather on the 8th with a clean 7 foot SW groundswell at a very long 18-second period. Then another pulse of big swell hits on Thursday the 10th of September: a 15 foot SW groundswell, but with better offshore winds again. This is serious stuff.

So, the absolute must-hit session is the glassy Monday the 31st of August. The other top call is the clean, consistent pulse on Friday the 28th. Everything after the 4th of September is for the big-wave specialists only.

Stay safe out there.

- Rusty

Short Range Forecast

Mostly dry. Very mild (max 14°C on Thu morning, min 8°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 17°C on Mon afternoon, min 9°C on Sat night). Winds increasing (calm on Mon morning, fresh winds from the NW by Mon night).

Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
2
2
2
2
4
4
3
3
4
3
3
2
4
4
4
3
1
3
5
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
SSW
12
1.4
SW
13
0.9
SSW
12
0.8
SSW
11
0.4
SW
21
0.8
WSW
19
1.7
SW
18
1.6
SW
16
1.4
SW
16
1.3
SW
14
1.8
SW
14
1.1
SSW
14
1.7
SSW
13
1.8
SW
13
2
SW
16
2
SW
15
1.9
SW
15
1.8
SW
16
1.6
SW
16
1.3
SW
15
3
WSW
14
Wave Graph
Metric surfscale
Energy kJ
357
623
246
158
125
465
1798
1335
989
746
1344
515
961
1144
1909
1741
1542
1664
1155
715
3772
Wind (km/h)
15
SW
15
SW
5
WNW
5
NW
10
WSW
15
WNW
10
WSW
15
SW
10
W
15
WSW
20
WSW
15
WNW
10
W
15
WSW
10
WNW
0
NNE
0
E
20
NNW
30
NW
25
W
10
SSW
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
off
cross-off
off
off
off
cross-off
cross-off
glassy
glassy
cross-off
cross-off
off
cross-off
High Tide
10:52AM1.33m
00:32AM1.91m
12:05PM1.48m
1:03AM2.01m
12:54PM1.66m
1:30AM2.07m
1:34PM1.85m
1:54AM2.10m
2:10PM2.02m
2:18AM2.10m
2:45PM2.16m
2:42AM2.08m
3:20PM2.25m
3:05AM2.04m
Low Tide
5:21PM0.71m
7:04AM1.03m
6:16PM0.66m
7:25AM0.89m
7:00PM0.61m
7:46AM0.73m
7:39PM0.57m
8:08AM0.57m
8:14PM0.56m
8:31AM0.41m
8:49PM0.57m
8:57AM0.27m
9:22PM0.62m
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:58
6:56
6:54
6:52
6:52
6:50
6:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:57
5:58
5:59
5:59
6:00
6:00
6:01
 mm
1
6
Temp °C
13
12
9
14
14
10
12
12
9
12
12
9
14
13
10
16
17
14
21
19
10
Feels °C
9
8
7
12
11
8
9
9
6
8
8
6
11
10
8
14
16
12
15
14
8
  • 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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