Marengo Surf Break

Lat Long: 38.78° S 143.67° E

Marengo Surf Forecast and Surf Report

Issued: 3 am 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Marengo sea temperature is
13.9°C
0.7° 

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: Friday 28 Aug, 1PM (local time) - 5ft (1.6m), 17s period, SW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 2 Sep, 7AM (local time) - 13ft (4.0m), 14s period, WSW swell with 5,821 kJ wave energy.
  • Next surfable swell (1★+): Thursday 27 Aug, 7AM (local time) - 3ft (0.9m), 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 Thursday (Aug 27) at 7AM. The primary swell is predicted to be 0.9m and 11s period with a secondary swell of 0.6m and 12s. 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 4.0m 14s and forecast to arrive on Wednesday (Sep 02) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Tuesday (Sep 01) at 10AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Thu 27th Aug)3ft (0.9m) 11s
Best Surf 1PM (Fri 28th Aug)5ft (1.6m) 17s
Most Powerful 7AM (Wed 2nd Sep)13ft (4.0m) 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 for Marengo.

The next couple of days are pretty quiet, but things kick into gear from Friday the 28th of August. That’s when the first real pulse of swell arrives, and honestly, the whole 16-day window has a lot of potential if you pick your moments. There are a couple of absolute standouts though, so pay attention.

Starting off, Thursday the 27th is a write-off for any real surfing. You’ve got a tiny 2.6ft SSW swell with a 11-second period, decent for a paddle but not worth getting wet for. The energy is weak (312). Wait for Friday.

Now, Friday the 28th of August is where it gets interesting. We see a solid 5.2ft SW groundswell rolling in with an 18-second period. That’s a long period, meaning well-shaped waves with good gaps between sets. The wind is offshore from the WSW, so the surface will be clean and lined up. The combined wave energy is already strong (1522). This is a good one for experienced surfers. The water temp is sitting about average for this time of year, nothing unusual.

Saturday the 29th keeps the 4.3ft SW swell going with 14-second period and clean offshore winds. It’s a bit smaller than Friday but still very rideable and clean – a solid day for all skill levels, with moderate energy (746).

Sunday the 30th builds back up to 5.2ft to 5.9ft SW swell, but the wind is offshore and moderate. It’s still good, but nothing like Monday.

The standout of the entire forecast is Monday the 31st of August. This is the one you wait for. We’ve got a 6.2ft to 7.2ft SW groundswell with a 16 to 17-second period – that’s serious, long-period energy. But the real magic is the wind. It’s glassy. Flat calm. The combined swell energy is pumping at 2120 to 2832, meaning there is plenty of power in the water. This is clean, powerful, and perfectly lined-up. For experienced surfers, this is as good as it gets. Crowds are going to be thick, because everyone knows about Marengo, but for a Monday it might be manageable.

Tuesday the 1st of September is a bit of a letdown after that. The swell drops a little to 4.6ft to 5.2ft, and while the wind is cross-off, the fresh breeze makes it messy. The score suggests it’s marginal, and I’d say skip it unless you’re desperate.

Wednesday the 2nd sees a return of a fresh offshore wind, but the swell is a similar 4.9ft to 5.2ft. The morning has some light rain, but the afternoon cleans up. It’s okay, not a standout.

Thursday the 3rd and Friday the 4th are a mixed bag. Thursday is clean with a moderate cross-off wind, but Friday the 4th brings a massive spike in size – we’re talking 19.7ft of WSW swell on Friday morning. That’s enormous. The wave energy is off the charts (16887), but the wind is cross-off and the break is going to be too big for most. Only experts should even look at it, and even then, it might be more of a big-wave expedition. The afternoon drops to 9.8ft, but still big.

Saturday the 5th of September is still pumping big, with 9.8ft SW swell and a 16-second period, but the wind is offshore and gentle in the morning. This is one for the experienced crew who can handle big, clean groundswell. The energy is huge (4663).

Sunday the 6th of September is a real beast. The afternoon sees a 27.9ft WSW swell with a 16-second period and a wave energy reading of 42623. That’s not surfing; that’s survival. The forecast says it’s too big for the break. Don’t even bother.

Monday the 7th of September is your second big standout. After the chaos of Sunday, the swell backs down to a much more manageable 6.2ft to 7.2ft SW groundswell with a 17-second period. The wind is moderate offshore, and the energy is still very strong (2485 to 2761). This will produce clean, powerful, well-shaped waves. For experienced surfers, this is another belter of a day.

Tuesday the 8th builds back up to 18.0ft in the morning – again, too big for this break. But the afternoon drops to a much more manageable 13.1ft with a gentle offshore wind. The energy (13507) is extreme, but the wave size and the wind are a better mix. This is expert territory only.

From the 9th of September onward, the swell slowly drops but stays good. Wednesday the 9th has 9.8ft to 11.5ft SW swell with a 17-second period and cross-off winds. Thursday the 10th and Friday the 11th are in the 6.9ft to 16.4ft range, but the wind becomes more cross-shore. That Friday morning has a 16.

Short Range Forecast

Mostly dry. Very mild (max 13°C on Thu morning, min 8°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 5mm), mostly falling on Tue afternoon. Warm (max 20°C on Tue morning, min 9°C on Tue night). Winds increasing (calm on Mon morning, fresh winds from the WNW by Tue afternoon).

Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
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
2
3
3
3
3
3
4
3
3
3
4
4
4
3
2
1
4
3
4
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SSW
11
0.4
SW
21
0.8
WSW
19
1.6
SW
18
1.6
SW
16
1.5
SW
16
1.4
SW
14
2
SW
14
1.4
SSW
14
1.7
SSW
13
1.8
SW
13
2
SW
15
2
SW
15
2.1
SW
15
2
SW
16
1.7
SW
16
1.4
SW
15
1.8
SW
15
3.5
WSW
14
3.5
WSW
14
1.1
SW
14
Wave Graph
Metric surfscale
Energy kJ
158
125
470
1634
1436
1101
825
1558
752
904
1077
1672
1860
2102
1929
1374
882
1343
5417
4876
529
Wind (km/h)
5
NNW
10
SW
15
NW
15
WSW
15
SW
10
W
15
WSW
20
WSW
15
W
15
W
20
WSW
10
WNW
5
WNW
5
SW
15
NNW
30
NNW
35
WNW
10
WNW
25
WNW
25
WNW
25
NW
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
off
off
off
glassy
glassy
cross-off
cross-off
cross-off
off
cross-off
off
cross-off
High Tide
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
3:56PM2.28m
3:30AM1.99m
Low Tide
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
9:24AM0.14m
9:55PM0.70m
part cloud
part cloud
part cloud
cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
rain showers
rain showers
cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:54
6:52
6:52
6:50
6:48
6:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:58
5:59
5:59
6:00
6:00
6:01
6:02
 mm
4
1
1
Temp °C
13
13
10
12
13
9
12
12
10
14
13
10
15
14
13
20
19
12
13
13
12
Feels °C
11
10
8
9
10
7
7
8
7
10
9
8
13
13
11
14
12
8
7
7
6
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Marengo:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Marengo surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest